http://git-wip-us.apache.org/repos/asf/hbase-site/blob/804782f0/devapidocs/src-html/org/apache/hadoop/hbase/master/locking/LockProcedure.LockInterface.html
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diff --git
a/devapidocs/src-html/org/apache/hadoop/hbase/master/locking/LockProcedure.LockInterface.html
b/devapidocs/src-html/org/apache/hadoop/hbase/master/locking/LockProcedure.LockInterface.html
index aba85f1..a2daee8 100644
---
a/devapidocs/src-html/org/apache/hadoop/hbase/master/locking/LockProcedure.LockInterface.html
+++
b/devapidocs/src-html/org/apache/hadoop/hbase/master/locking/LockProcedure.LockInterface.html
@@ -84,420 +84,411 @@
<span class="sourceLineNo">076</span> private String description;<a
name="line.76"></a>
<span class="sourceLineNo">077</span> // True when recovery of master lock
from WALs<a name="line.77"></a>
<span class="sourceLineNo">078</span> private boolean recoveredMasterLock;<a
name="line.78"></a>
-<span class="sourceLineNo">079</span> // this is for internal working<a
name="line.79"></a>
-<span class="sourceLineNo">080</span> private boolean hasLock;<a
name="line.80"></a>
-<span class="sourceLineNo">081</span><a name="line.81"></a>
-<span class="sourceLineNo">082</span> private final
ProcedureEvent<LockProcedure> event = new ProcedureEvent<>(this);<a
name="line.82"></a>
-<span class="sourceLineNo">083</span> // True if this proc acquired relevant
locks. This value is for client checks.<a name="line.83"></a>
-<span class="sourceLineNo">084</span> private final AtomicBoolean locked =
new AtomicBoolean(false);<a name="line.84"></a>
-<span class="sourceLineNo">085</span> // Last system time (in ms) when client
sent the heartbeat.<a name="line.85"></a>
-<span class="sourceLineNo">086</span> // Initialize to system time for
non-null value in case of recovery.<a name="line.86"></a>
-<span class="sourceLineNo">087</span> private final AtomicLong lastHeartBeat
= new AtomicLong();<a name="line.87"></a>
-<span class="sourceLineNo">088</span> // Set to true when unlock request is
received.<a name="line.88"></a>
-<span class="sourceLineNo">089</span> private final AtomicBoolean unlock =
new AtomicBoolean(false);<a name="line.89"></a>
-<span class="sourceLineNo">090</span> // decreased when locks are acquired.
Only used for local (with master process) purposes.<a name="line.90"></a>
-<span class="sourceLineNo">091</span> // Setting latch to non-null value
increases default timeout to<a name="line.91"></a>
-<span class="sourceLineNo">092</span> //
DEFAULT_LOCAL_MASTER_LOCKS_TIMEOUT_MS (10 min) so that there is no need to
heartbeat.<a name="line.92"></a>
-<span class="sourceLineNo">093</span> private final CountDownLatch
lockAcquireLatch;<a name="line.93"></a>
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-<span class="sourceLineNo">095</span> @Override<a name="line.95"></a>
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name="line.96"></a>
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name="line.97"></a>
-<span class="sourceLineNo">098</span> }<a name="line.98"></a>
-<span class="sourceLineNo">099</span><a name="line.99"></a>
-<span class="sourceLineNo">100</span> @Override<a name="line.100"></a>
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getTableOperationType() {<a name="line.101"></a>
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-<span class="sourceLineNo">103</span> }<a name="line.103"></a>
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-<span class="sourceLineNo">105</span> private interface LockInterface {<a
name="line.105"></a>
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acquireLock(MasterProcedureEnv env);<a name="line.106"></a>
-<span class="sourceLineNo">107</span> void releaseLock(MasterProcedureEnv
env);<a name="line.107"></a>
-<span class="sourceLineNo">108</span> }<a name="line.108"></a>
-<span class="sourceLineNo">109</span><a name="line.109"></a>
-<span class="sourceLineNo">110</span> public LockProcedure() {<a
name="line.110"></a>
-<span class="sourceLineNo">111</span> lockAcquireLatch = null;<a
name="line.111"></a>
-<span class="sourceLineNo">112</span> }<a name="line.112"></a>
-<span class="sourceLineNo">113</span><a name="line.113"></a>
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Configuration conf, final LockType type,<a name="line.114"></a>
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CountDownLatch lockAcquireLatch) {<a name="line.115"></a>
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name="line.116"></a>
-<span class="sourceLineNo">117</span> this.description = description;<a
name="line.117"></a>
-<span class="sourceLineNo">118</span> this.lockAcquireLatch =
lockAcquireLatch;<a name="line.118"></a>
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name="line.119"></a>
-<span class="sourceLineNo">120</span>
setTimeout(conf.getInt(REMOTE_LOCKS_TIMEOUT_MS_CONF,
DEFAULT_REMOTE_LOCKS_TIMEOUT_MS));<a name="line.120"></a>
-<span class="sourceLineNo">121</span> } else {<a name="line.121"></a>
-<span class="sourceLineNo">122</span>
setTimeout(conf.getInt(LOCAL_MASTER_LOCKS_TIMEOUT_MS_CONF,<a
name="line.122"></a>
-<span class="sourceLineNo">123</span>
DEFAULT_LOCAL_MASTER_LOCKS_TIMEOUT_MS));<a name="line.123"></a>
-<span class="sourceLineNo">124</span> }<a name="line.124"></a>
-<span class="sourceLineNo">125</span> }<a name="line.125"></a>
-<span class="sourceLineNo">126</span><a name="line.126"></a>
-<span class="sourceLineNo">127</span> /**<a name="line.127"></a>
-<span class="sourceLineNo">128</span> * Constructor for namespace lock.<a
name="line.128"></a>
-<span class="sourceLineNo">129</span> * @param lockAcquireLatch if not null,
the latch is decreased when lock is acquired.<a name="line.129"></a>
-<span class="sourceLineNo">130</span> */<a name="line.130"></a>
-<span class="sourceLineNo">131</span> public LockProcedure(final
Configuration conf, final String namespace, final LockType type,<a
name="line.131"></a>
-<span class="sourceLineNo">132</span> final String description, final
CountDownLatch lockAcquireLatch)<a name="line.132"></a>
-<span class="sourceLineNo">133</span> throws IllegalArgumentException {<a
name="line.133"></a>
-<span class="sourceLineNo">134</span> this(conf, type, description,
lockAcquireLatch);<a name="line.134"></a>
-<span class="sourceLineNo">135</span><a name="line.135"></a>
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name="line.136"></a>
-<span class="sourceLineNo">137</span> throw new
IllegalArgumentException("Empty namespace");<a name="line.137"></a>
-<span class="sourceLineNo">138</span> }<a name="line.138"></a>
-<span class="sourceLineNo">139</span><a name="line.139"></a>
-<span class="sourceLineNo">140</span> this.namespace = namespace;<a
name="line.140"></a>
-<span class="sourceLineNo">141</span> this.lock = setupNamespaceLock();<a
name="line.141"></a>
-<span class="sourceLineNo">142</span> }<a name="line.142"></a>
-<span class="sourceLineNo">143</span><a name="line.143"></a>
-<span class="sourceLineNo">144</span> /**<a name="line.144"></a>
-<span class="sourceLineNo">145</span> * Constructor for table lock.<a
name="line.145"></a>
-<span class="sourceLineNo">146</span> * @param lockAcquireLatch if not null,
the latch is decreased when lock is acquired.<a name="line.146"></a>
-<span class="sourceLineNo">147</span> */<a name="line.147"></a>
-<span class="sourceLineNo">148</span> public LockProcedure(final
Configuration conf, final TableName tableName, final LockType type,<a
name="line.148"></a>
-<span class="sourceLineNo">149</span> final String description, final
CountDownLatch lockAcquireLatch)<a name="line.149"></a>
-<span class="sourceLineNo">150</span> throws IllegalArgumentException {<a
name="line.150"></a>
-<span class="sourceLineNo">151</span> this(conf, type, description,
lockAcquireLatch);<a name="line.151"></a>
-<span class="sourceLineNo">152</span><a name="line.152"></a>
-<span class="sourceLineNo">153</span> this.tableName = tableName;<a
name="line.153"></a>
-<span class="sourceLineNo">154</span> this.lock = setupTableLock();<a
name="line.154"></a>
-<span class="sourceLineNo">155</span> }<a name="line.155"></a>
-<span class="sourceLineNo">156</span><a name="line.156"></a>
-<span class="sourceLineNo">157</span> /**<a name="line.157"></a>
-<span class="sourceLineNo">158</span> * Constructor for region lock(s).<a
name="line.158"></a>
-<span class="sourceLineNo">159</span> * @param lockAcquireLatch if not null,
the latch is decreased when lock is acquired.<a name="line.159"></a>
-<span class="sourceLineNo">160</span> * Useful for
locks acquired locally from master process.<a name="line.160"></a>
-<span class="sourceLineNo">161</span> * @throws IllegalArgumentException if
all regions are not from same table.<a name="line.161"></a>
-<span class="sourceLineNo">162</span> */<a name="line.162"></a>
-<span class="sourceLineNo">163</span> public LockProcedure(final
Configuration conf, final RegionInfo[] regionInfos,<a name="line.163"></a>
-<span class="sourceLineNo">164</span> final LockType type, final String
description, final CountDownLatch lockAcquireLatch)<a name="line.164"></a>
-<span class="sourceLineNo">165</span> throws IllegalArgumentException {<a
name="line.165"></a>
-<span class="sourceLineNo">166</span> this(conf, type, description,
lockAcquireLatch);<a name="line.166"></a>
-<span class="sourceLineNo">167</span><a name="line.167"></a>
-<span class="sourceLineNo">168</span> // Build RegionInfo from region
names.<a name="line.168"></a>
-<span class="sourceLineNo">169</span> if (regionInfos.length == 0) {<a
name="line.169"></a>
-<span class="sourceLineNo">170</span> throw new
IllegalArgumentException("No regions specified for region lock");<a
name="line.170"></a>
-<span class="sourceLineNo">171</span> }<a name="line.171"></a>
-<span class="sourceLineNo">172</span><a name="line.172"></a>
-<span class="sourceLineNo">173</span> // check all regions belong to same
table.<a name="line.173"></a>
-<span class="sourceLineNo">174</span> final TableName regionTable =
regionInfos[0].getTable();<a name="line.174"></a>
-<span class="sourceLineNo">175</span> for (int i = 1; i <
regionInfos.length; ++i) {<a name="line.175"></a>
-<span class="sourceLineNo">176</span> if
(!regionInfos[i].getTable().equals(regionTable)) {<a name="line.176"></a>
-<span class="sourceLineNo">177</span> throw new
IllegalArgumentException("All regions should be from same table");<a
name="line.177"></a>
-<span class="sourceLineNo">178</span> }<a name="line.178"></a>
-<span class="sourceLineNo">179</span> }<a name="line.179"></a>
-<span class="sourceLineNo">180</span><a name="line.180"></a>
-<span class="sourceLineNo">181</span> this.regionInfos = regionInfos;<a
name="line.181"></a>
-<span class="sourceLineNo">182</span> this.lock = setupRegionLock();<a
name="line.182"></a>
-<span class="sourceLineNo">183</span> }<a name="line.183"></a>
-<span class="sourceLineNo">184</span><a name="line.184"></a>
-<span class="sourceLineNo">185</span> private boolean hasHeartbeatExpired()
{<a name="line.185"></a>
-<span class="sourceLineNo">186</span> return System.currentTimeMillis() -
lastHeartBeat.get() >= getTimeout();<a name="line.186"></a>
-<span class="sourceLineNo">187</span> }<a name="line.187"></a>
-<span class="sourceLineNo">188</span><a name="line.188"></a>
-<span class="sourceLineNo">189</span> /**<a name="line.189"></a>
-<span class="sourceLineNo">190</span> * Updates timeout deadline for the
lock.<a name="line.190"></a>
-<span class="sourceLineNo">191</span> */<a name="line.191"></a>
-<span class="sourceLineNo">192</span> public void updateHeartBeat() {<a
name="line.192"></a>
-<span class="sourceLineNo">193</span>
lastHeartBeat.set(System.currentTimeMillis());<a name="line.193"></a>
-<span class="sourceLineNo">194</span> if (LOG.isDebugEnabled()) {<a
name="line.194"></a>
-<span class="sourceLineNo">195</span> LOG.debug("Heartbeat " +
toString());<a name="line.195"></a>
-<span class="sourceLineNo">196</span> }<a name="line.196"></a>
-<span class="sourceLineNo">197</span> }<a name="line.197"></a>
-<span class="sourceLineNo">198</span><a name="line.198"></a>
-<span class="sourceLineNo">199</span> /**<a name="line.199"></a>
-<span class="sourceLineNo">200</span> * Re run the procedure after every
timeout to write new WAL entries so we don't hold back old<a
name="line.200"></a>
-<span class="sourceLineNo">201</span> * WALs.<a name="line.201"></a>
-<span class="sourceLineNo">202</span> * @return false, so procedure
framework doesn't mark this procedure as failure.<a name="line.202"></a>
-<span class="sourceLineNo">203</span> */<a name="line.203"></a>
-<span class="sourceLineNo">204</span> @Override<a name="line.204"></a>
-<span class="sourceLineNo">205</span> protected synchronized boolean
setTimeoutFailure(final MasterProcedureEnv env) {<a name="line.205"></a>
-<span class="sourceLineNo">206</span> synchronized (event) {<a
name="line.206"></a>
-<span class="sourceLineNo">207</span> if (LOG.isDebugEnabled())
LOG.debug("Timeout failure " + this.event);<a name="line.207"></a>
-<span class="sourceLineNo">208</span> if (!event.isReady()) { // Maybe
unlock() awakened the event.<a name="line.208"></a>
-<span class="sourceLineNo">209</span>
setState(ProcedureProtos.ProcedureState.RUNNABLE);<a name="line.209"></a>
-<span class="sourceLineNo">210</span> if (LOG.isDebugEnabled())
LOG.debug("Calling wake on " + this.event);<a name="line.210"></a>
-<span class="sourceLineNo">211</span>
event.wake(env.getProcedureScheduler());<a name="line.211"></a>
-<span class="sourceLineNo">212</span> }<a name="line.212"></a>
-<span class="sourceLineNo">213</span> }<a name="line.213"></a>
-<span class="sourceLineNo">214</span> return false; // false: do not mark
the procedure as failed.<a name="line.214"></a>
-<span class="sourceLineNo">215</span> }<a name="line.215"></a>
-<span class="sourceLineNo">216</span><a name="line.216"></a>
-<span class="sourceLineNo">217</span> // Can be called before procedure gets
scheduled, in which case, the execute() will finish<a name="line.217"></a>
-<span class="sourceLineNo">218</span> // immediately and release the
underlying locks.<a name="line.218"></a>
-<span class="sourceLineNo">219</span> public void unlock(final
MasterProcedureEnv env) {<a name="line.219"></a>
-<span class="sourceLineNo">220</span> unlock.set(true);<a
name="line.220"></a>
-<span class="sourceLineNo">221</span> locked.set(false);<a
name="line.221"></a>
-<span class="sourceLineNo">222</span> // Maybe timeout already awakened the
event and the procedure has finished.<a name="line.222"></a>
-<span class="sourceLineNo">223</span> synchronized (event) {<a
name="line.223"></a>
-<span class="sourceLineNo">224</span> if (!event.isReady()) {<a
name="line.224"></a>
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setState(ProcedureProtos.ProcedureState.RUNNABLE);<a name="line.225"></a>
-<span class="sourceLineNo">226</span>
event.wake(env.getProcedureScheduler());<a name="line.226"></a>
-<span class="sourceLineNo">227</span> }<a name="line.227"></a>
-<span class="sourceLineNo">228</span> }<a name="line.228"></a>
-<span class="sourceLineNo">229</span> }<a name="line.229"></a>
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Procedure<MasterProcedureEnv>[] execute(final MasterProcedureEnv env)<a
name="line.232"></a>
-<span class="sourceLineNo">233</span> throws ProcedureSuspendedException {<a
name="line.233"></a>
-<span class="sourceLineNo">234</span> // Local master locks don't store any
state, so on recovery, simply finish this procedure<a name="line.234"></a>
-<span class="sourceLineNo">235</span> // immediately.<a name="line.235"></a>
-<span class="sourceLineNo">236</span> if (recoveredMasterLock) return
null;<a name="line.236"></a>
-<span class="sourceLineNo">237</span> if (lockAcquireLatch != null) {<a
name="line.237"></a>
-<span class="sourceLineNo">238</span> lockAcquireLatch.countDown();<a
name="line.238"></a>
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-<span class="sourceLineNo">240</span> if (unlock.get() ||
hasHeartbeatExpired()) {<a name="line.240"></a>
-<span class="sourceLineNo">241</span> locked.set(false);<a
name="line.241"></a>
-<span class="sourceLineNo">242</span> LOG.debug((unlock.get()? "UNLOCKED
" : "TIMED OUT ") + toString());<a name="line.242"></a>
-<span class="sourceLineNo">243</span> return null;<a name="line.243"></a>
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name="line.245"></a>
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name="line.246"></a>
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name="line.247"></a>
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setState(ProcedureProtos.ProcedureState.WAITING_TIMEOUT);<a name="line.248"></a>
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ProcedureSuspendedException();<a name="line.250"></a>
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MasterProcedureEnv env) {<a name="line.254"></a>
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UnsupportedOperationException();<a name="line.255"></a>
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MasterProcedureEnv env) {<a name="line.259"></a>
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name="line.266"></a>
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builder = LockProcedureData.newBuilder()<a name="line.267"></a>
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.setLockType(LockServiceProtos.LockType.valueOf(type.name()))<a
name="line.268"></a>
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name="line.269"></a>
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name="line.270"></a>
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regionInfos.length; ++i) {<a name="line.271"></a>
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builder.addRegionInfo(ProtobufUtil.toRegionInfo(regionInfos[i]));<a
name="line.272"></a>
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name="line.274"></a>
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name="line.275"></a>
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name="line.276"></a>
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builder.setTableName(ProtobufUtil.toProtoTableName(tableName));<a
name="line.277"></a>
-<span class="sourceLineNo">278</span> }<a name="line.278"></a>
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name="line.279"></a>
-<span class="sourceLineNo">280</span> builder.setIsMasterLock(true);<a
name="line.280"></a>
-<span class="sourceLineNo">281</span> }<a name="line.281"></a>
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serializer.serialize(builder.build());<a name="line.282"></a>
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deserializeStateData(ProcedureStateSerializer serializer)<a name="line.286"></a>
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name="line.287"></a>
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serializer.deserialize(LockProcedureData.class);<a name="line.288"></a>
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state.getDescription();<a name="line.290"></a>
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0) {<a name="line.291"></a>
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RegionInfo[state.getRegionInfoCount()];<a name="line.292"></a>
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state.getRegionInfoCount(); ++i) {<a name="line.293"></a>
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ProtobufUtil.toRegionInfo(state.getRegionInfo(i));<a name="line.294"></a>
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name="line.296"></a>
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name="line.297"></a>
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name="line.298"></a>
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ProtobufUtil.toTableName(state.getTableName());<a name="line.299"></a>
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-<span class="sourceLineNo">301</span> recoveredMasterLock =
state.getIsMasterLock();<a name="line.301"></a>
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name="line.302"></a>
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MasterProcedureEnv env) {<a name="line.306"></a>
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lock.acquireLock(env);<a name="line.307"></a>
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type=").append(type);<a name="line.352"></a>
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ProcedureEvent<LockProcedure> event = new ProcedureEvent<>(this);<a
name="line.80"></a>
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locks. This value is for client checks.<a name="line.81"></a>
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new AtomicBoolean(false);<a name="line.82"></a>
+<span class="sourceLineNo">083</span> // Last system time (in ms) when client
sent the heartbeat.<a name="line.83"></a>
+<span class="sourceLineNo">084</span> // Initialize to system time for
non-null value in case of recovery.<a name="line.84"></a>
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= new AtomicLong();<a name="line.85"></a>
+<span class="sourceLineNo">086</span> // Set to true when unlock request is
received.<a name="line.86"></a>
+<span class="sourceLineNo">087</span> private final AtomicBoolean unlock =
new AtomicBoolean(false);<a name="line.87"></a>
+<span class="sourceLineNo">088</span> // decreased when locks are acquired.
Only used for local (with master process) purposes.<a name="line.88"></a>
+<span class="sourceLineNo">089</span> // Setting latch to non-null value
increases default timeout to<a name="line.89"></a>
+<span class="sourceLineNo">090</span> //
DEFAULT_LOCAL_MASTER_LOCKS_TIMEOUT_MS (10 min) so that there is no need to
heartbeat.<a name="line.90"></a>
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lockAcquireLatch;<a name="line.91"></a>
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name="line.94"></a>
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getTableOperationType() {<a name="line.99"></a>
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acquireLock(MasterProcedureEnv env);<a name="line.104"></a>
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env);<a name="line.105"></a>
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+<span class="sourceLineNo">107</span><a name="line.107"></a>
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name="line.108"></a>
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name="line.109"></a>
+<span class="sourceLineNo">110</span> }<a name="line.110"></a>
+<span class="sourceLineNo">111</span><a name="line.111"></a>
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Configuration conf, final LockType type,<a name="line.112"></a>
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CountDownLatch lockAcquireLatch) {<a name="line.113"></a>
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name="line.114"></a>
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name="line.115"></a>
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lockAcquireLatch;<a name="line.116"></a>
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name="line.117"></a>
+<span class="sourceLineNo">118</span>
setTimeout(conf.getInt(REMOTE_LOCKS_TIMEOUT_MS_CONF,
DEFAULT_REMOTE_LOCKS_TIMEOUT_MS));<a name="line.118"></a>
+<span class="sourceLineNo">119</span> } else {<a name="line.119"></a>
+<span class="sourceLineNo">120</span>
setTimeout(conf.getInt(LOCAL_MASTER_LOCKS_TIMEOUT_MS_CONF,<a
name="line.120"></a>
+<span class="sourceLineNo">121</span>
DEFAULT_LOCAL_MASTER_LOCKS_TIMEOUT_MS));<a name="line.121"></a>
+<span class="sourceLineNo">122</span> }<a name="line.122"></a>
+<span class="sourceLineNo">123</span> }<a name="line.123"></a>
+<span class="sourceLineNo">124</span><a name="line.124"></a>
+<span class="sourceLineNo">125</span> /**<a name="line.125"></a>
+<span class="sourceLineNo">126</span> * Constructor for namespace lock.<a
name="line.126"></a>
+<span class="sourceLineNo">127</span> * @param lockAcquireLatch if not null,
the latch is decreased when lock is acquired.<a name="line.127"></a>
+<span class="sourceLineNo">128</span> */<a name="line.128"></a>
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Configuration conf, final String namespace, final LockType type,<a
name="line.129"></a>
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CountDownLatch lockAcquireLatch)<a name="line.130"></a>
+<span class="sourceLineNo">131</span> throws IllegalArgumentException {<a
name="line.131"></a>
+<span class="sourceLineNo">132</span> this(conf, type, description,
lockAcquireLatch);<a name="line.132"></a>
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name="line.134"></a>
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IllegalArgumentException("Empty namespace");<a name="line.135"></a>
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+<span class="sourceLineNo">137</span><a name="line.137"></a>
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name="line.138"></a>
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name="line.139"></a>
+<span class="sourceLineNo">140</span> }<a name="line.140"></a>
+<span class="sourceLineNo">141</span><a name="line.141"></a>
+<span class="sourceLineNo">142</span> /**<a name="line.142"></a>
+<span class="sourceLineNo">143</span> * Constructor for table lock.<a
name="line.143"></a>
+<span class="sourceLineNo">144</span> * @param lockAcquireLatch if not null,
the latch is decreased when lock is acquired.<a name="line.144"></a>
+<span class="sourceLineNo">145</span> */<a name="line.145"></a>
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Configuration conf, final TableName tableName, final LockType type,<a
name="line.146"></a>
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CountDownLatch lockAcquireLatch)<a name="line.147"></a>
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name="line.148"></a>
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lockAcquireLatch);<a name="line.149"></a>
+<span class="sourceLineNo">150</span><a name="line.150"></a>
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name="line.151"></a>
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name="line.152"></a>
+<span class="sourceLineNo">153</span> }<a name="line.153"></a>
+<span class="sourceLineNo">154</span><a name="line.154"></a>
+<span class="sourceLineNo">155</span> /**<a name="line.155"></a>
+<span class="sourceLineNo">156</span> * Constructor for region lock(s).<a
name="line.156"></a>
+<span class="sourceLineNo">157</span> * @param lockAcquireLatch if not null,
the latch is decreased when lock is acquired.<a name="line.157"></a>
+<span class="sourceLineNo">158</span> * Useful for
locks acquired locally from master process.<a name="line.158"></a>
+<span class="sourceLineNo">159</span> * @throws IllegalArgumentException if
all regions are not from same table.<a name="line.159"></a>
+<span class="sourceLineNo">160</span> */<a name="line.160"></a>
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Configuration conf, final RegionInfo[] regionInfos,<a name="line.161"></a>
+<span class="sourceLineNo">162</span> final LockType type, final String
description, final CountDownLatch lockAcquireLatch)<a name="line.162"></a>
+<span class="sourceLineNo">163</span> throws IllegalArgumentException {<a
name="line.163"></a>
+<span class="sourceLineNo">164</span> this(conf, type, description,
lockAcquireLatch);<a name="line.164"></a>
+<span class="sourceLineNo">165</span><a name="line.165"></a>
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names.<a name="line.166"></a>
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name="line.167"></a>
+<span class="sourceLineNo">168</span> throw new
IllegalArgumentException("No regions specified for region lock");<a
name="line.168"></a>
+<span class="sourceLineNo">169</span> }<a name="line.169"></a>
+<span class="sourceLineNo">170</span><a name="line.170"></a>
+<span class="sourceLineNo">171</span> // check all regions belong to same
table.<a name="line.171"></a>
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regionInfos[0].getTable();<a name="line.172"></a>
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regionInfos.length; ++i) {<a name="line.173"></a>
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(!regionInfos[i].getTable().equals(regionTable)) {<a name="line.174"></a>
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IllegalArgumentException("All regions should be from same table");<a
name="line.175"></a>
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+<span class="sourceLineNo">177</span> }<a name="line.177"></a>
+<span class="sourceLineNo">178</span><a name="line.178"></a>
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name="line.180"></a>
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+<span class="sourceLineNo">182</span><a name="line.182"></a>
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{<a name="line.183"></a>
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lastHeartBeat.get() >= getTimeout();<a name="line.184"></a>
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+<span class="sourceLineNo">186</span><a name="line.186"></a>
+<span class="sourceLineNo">187</span> /**<a name="line.187"></a>
+<span class="sourceLineNo">188</span> * Updates timeout deadline for the
lock.<a name="line.188"></a>
+<span class="sourceLineNo">189</span> */<a name="line.189"></a>
+<span class="sourceLineNo">190</span> public void updateHeartBeat() {<a
name="line.190"></a>
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lastHeartBeat.set(System.currentTimeMillis());<a name="line.191"></a>
+<span class="sourceLineNo">192</span> if (LOG.isDebugEnabled()) {<a
name="line.192"></a>
+<span class="sourceLineNo">193</span> LOG.debug("Heartbeat " +
toString());<a name="line.193"></a>
+<span class="sourceLineNo">194</span> }<a name="line.194"></a>
+<span class="sourceLineNo">195</span> }<a name="line.195"></a>
+<span class="sourceLineNo">196</span><a name="line.196"></a>
+<span class="sourceLineNo">197</span> /**<a name="line.197"></a>
+<span class="sourceLineNo">198</span> * Re run the procedure after every
timeout to write new WAL entries so we don't hold back old<a
name="line.198"></a>
+<span class="sourceLineNo">199</span> * WALs.<a name="line.199"></a>
+<span class="sourceLineNo">200</span> * @return false, so procedure
framework doesn't mark this procedure as failure.<a name="line.200"></a>
+<span class="sourceLineNo">201</span> */<a name="line.201"></a>
+<span class="sourceLineNo">202</span> @Override<a name="line.202"></a>
+<span class="sourceLineNo">203</span> protected synchronized boolean
setTimeoutFailure(final MasterProcedureEnv env) {<a name="line.203"></a>
+<span class="sourceLineNo">204</span> synchronized (event) {<a
name="line.204"></a>
+<span class="sourceLineNo">205</span> if (LOG.isDebugEnabled())
LOG.debug("Timeout failure " + this.event);<a name="line.205"></a>
+<span class="sourceLineNo">206</span> if (!event.isReady()) { // Maybe
unlock() awakened the event.<a name="line.206"></a>
+<span class="sourceLineNo">207</span>
setState(ProcedureProtos.ProcedureState.RUNNABLE);<a name="line.207"></a>
+<span class="sourceLineNo">208</span> if (LOG.isDebugEnabled())
LOG.debug("Calling wake on " + this.event);<a name="line.208"></a>
+<span class="sourceLineNo">209</span>
event.wake(env.getProcedureScheduler());<a name="line.209"></a>
+<span class="sourceLineNo">210</span> }<a name="line.210"></a>
+<span class="sourceLineNo">211</span> }<a name="line.211"></a>
+<span class="sourceLineNo">212</span> return false; // false: do not mark
the procedure as failed.<a name="line.212"></a>
+<span class="sourceLineNo">213</span> }<a name="line.213"></a>
+<span class="sourceLineNo">214</span><a name="line.214"></a>
+<span class="sourceLineNo">215</span> // Can be called before procedure gets
scheduled, in which case, the execute() will finish<a name="line.215"></a>
+<span class="sourceLineNo">216</span> // immediately and release the
underlying locks.<a name="line.216"></a>
+<span class="sourceLineNo">217</span> public void unlock(final
MasterProcedureEnv env) {<a name="line.217"></a>
+<span class="sourceLineNo">218</span> unlock.set(true);<a
name="line.218"></a>
+<span class="sourceLineNo">219</span> locked.set(false);<a
name="line.219"></a>
+<span class="sourceLineNo">220</span> // Maybe timeout already awakened the
event and the procedure has finished.<a name="line.220"></a>
+<span class="sourceLineNo">221</span> synchronized (event) {<a
name="line.221"></a>
+<span class="sourceLineNo">222</span> if (!event.isReady()) {<a
name="line.222"></a>
+<span class="sourceLineNo">223</span>
setState(ProcedureProtos.ProcedureState.RUNNABLE);<a name="line.223"></a>
+<span class="sourceLineNo">224</span>
event.wake(env.getProcedureScheduler());<a name="line.224"></a>
+<span class="sourceLineNo">225</span> }<a name="line.225"></a>
+<span class="sourceLineNo">226</span> }<a name="line.226"></a>
+<span class="sourceLineNo">227</span> }<a name="line.227"></a>
+<span class="sourceLineNo">228</span><a name="line.228"></a>
+<span class="sourceLineNo">229</span> @Override<a name="line.229"></a>
+<span class="sourceLineNo">230</span> protected
Procedure<MasterProcedureEnv>[] execute(final MasterProcedureEnv env)<a
name="line.230"></a>
+<span class="sourceLineNo">231</span> throws ProcedureSuspendedException {<a
name="line.231"></a>
+<span class="sourceLineNo">232</span> // Local master locks don't store any
state, so on recovery, simply finish this procedure<a name="line.232"></a>
+<span class="sourceLineNo">233</span> // immediately.<a name="line.233"></a>
+<span class="sourceLineNo">234</span> if (recoveredMasterLock) return
null;<a name="line.234"></a>
+<span class="sourceLineNo">235</span> if (lockAcquireLatch != null) {<a
name="line.235"></a>
+<span class="sourceLineNo">236</span> lockAcquireLatch.countDown();<a
name="line.236"></a>
+<span class="sourceLineNo">237</span> }<a name="line.237"></a>
+<span class="sourceLineNo">238</span> if (unlock.get() ||
hasHeartbeatExpired()) {<a name="line.238"></a>
+<span class="sourceLineNo">239</span> locked.set(false);<a
name="line.239"></a>
+<span class="sourceLineNo">240</span> LOG.debug((unlock.get()? "UNLOCKED
" : "TIMED OUT ") + toString());<a name="line.240"></a>
+<span class="sourceLineNo">241</span> return null;<a name="line.241"></a>
+<span class="sourceLineNo">242</span> }<a name="line.242"></a>
+<span class="sourceLineNo">243</span> synchronized (event) {<a
name="line.243"></a>
+<span class="sourceLineNo">244</span> event.suspend();<a
name="line.244"></a>
+<span class="sourceLineNo">245</span> event.suspendIfNotReady(this);<a
name="line.245"></a>
+<span class="sourceLineNo">246</span>
setState(ProcedureProtos.ProcedureState.WAITING_TIMEOUT);<a name="line.246"></a>
+<span class="sourceLineNo">247</span> }<a name="line.247"></a>
+<span class="sourceLineNo">248</span> throw new
ProcedureSuspendedException();<a name="line.248"></a>
+<span class="sourceLineNo">249</span> }<a name="line.249"></a>
+<span class="sourceLineNo">250</span><a name="line.250"></a>
+<span class="sourceLineNo">251</span> @Override<a name="line.251"></a>
+<span class="sourceLineNo">252</span> protected void rollback(final
MasterProcedureEnv env) {<a name="line.252"></a>
+<span class="sourceLineNo">253</span> throw new
UnsupportedOperationException();<a name="line.253"></a>
+<span class="sourceLineNo">254</span> }<a name="line.254"></a>
+<span class="sourceLineNo">255</span><a name="line.255"></a>
+<span class="sourceLineNo">256</span> @Override<a name="line.256"></a>
+<span class="sourceLineNo">257</span> protected boolean abort(final
MasterProcedureEnv env) {<a name="line.257"></a>
+<span class="sourceLineNo">258</span> unlock(env);<a name="line.258"></a>
+<span class="sourceLineNo">259</span> return true;<a name="line.259"></a>
+<span class="sourceLineNo">260</span> }<a name="line.260"></a>
+<span class="sourceLineNo">261</span><a name="line.261"></a>
+<span class="sourceLineNo">262</span> @Override<a name="line.262"></a>
+<span class="sourceLineNo">263</span> protected void
serializeStateData(ProcedureStateSerializer serializer)<a name="line.263"></a>
+<span class="sourceLineNo">264</span> throws IOException {<a
name="line.264"></a>
+<span class="sourceLineNo">265</span> final LockProcedureData.Builder
builder = LockProcedureData.newBuilder()<a name="line.265"></a>
+<span class="sourceLineNo">266</span>
.setLockType(LockServiceProtos.LockType.valueOf(type.name()))<a
name="line.266"></a>
+<span class="sourceLineNo">267</span> .setDescription(description);<a
name="line.267"></a>
+<span class="sourceLineNo">268</span> if (regionInfos != null) {<a
name="line.268"></a>
+<span class="sourceLineNo">269</span> for (int i = 0; i <
regionInfos.length; ++i) {<a name="line.269"></a>
+<span class="sourceLineNo">270</span>
builder.addRegionInfo(ProtobufUtil.toRegionInfo(regionInfos[i]));<a
name="line.270"></a>
+<span class="sourceLineNo">271</span> }<a name="line.271"></a>
+<span class="sourceLineNo">272</span> } else if (namespace != null) {<a
name="line.272"></a>
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state.getIsMasterLock();<a name="line.299"></a>
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MasterProcedureEnv env) {<a name="line.304"></a>
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lock.acquireLock(env);<a name="line.305"></a>
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toString());<a name="line.309"></a>
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lastHeartBeat.set(System.currentTimeMillis());<a name="line.311"></a>
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toString() + "; YIELDING");<a name="line.314"></a>
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MasterProcedureEnv env) {<a name="line.319"></a>
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+<span class="sourceLineNo">324</span> * On recovery, re-execute from start
to acquire the locks.<a name="line.324"></a>
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RUNNABLE because the procedure might have been in WAITING_TIMEOUT<a
name="line.325"></a>
+<span class="sourceLineNo">326</span> * state when crash happened. In which
case, it'll be sent back to timeout queue on recovery,<a name="line.326"></a>
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require locks.<a name="line.327"></a>
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beforeReplay(MasterProcedureEnv env) {<a name="line.330"></a>
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setState(ProcedureProtos.ProcedureState.RUNNABLE);<a name="line.331"></a>
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super.toStringClassDetails(builder);<a name="line.336"></a>
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regionInfos.length; ++i) {<a name="line.339"></a>
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builder.append(",");<a name="line.340"></a>
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builder.append(regionInfos[i].getShortNameToLog());<a name="line.341"></a>
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<span class="sourceLineNo">353</span> }<a name="line.353"></a>
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name="line.368"></a>
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IllegalArgumentException("Only exclusive lock supported on regions.");<a
name="line.409"></a>
-<span class="sourceLineNo">410</span> }<a name="line.410"></a>
+<span class="sourceLineNo">355</span> private LockInterface setupLock()
throws IllegalArgumentException {<a name="line.355"></a>
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name="line.356"></a>
+<span class="sourceLineNo">357</span> return setupRegionLock();<a
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name="line.358"></a>
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+<span class="sourceLineNo">360</span> } else if (tableName != null) {<a
name="line.360"></a>
+<span class="sourceLineNo">361</span> return setupTableLock();<a
name="line.361"></a>
+<span class="sourceLineNo">362</span> } else {<a name="line.362"></a>
+<span class="sourceLineNo">363</span> LOG.error("Unknown level specified
in " + toString());<a name="line.363"></a>
+<span class="sourceLineNo">364</span> throw new
IllegalArgumentException("no namespace/table/region provided");<a
name="line.364"></a>
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+<span class="sourceLineNo">366</span> }<a name="line.366"></a>
+<span class="sourceLineNo">367</span><a name="line.367"></a>
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setupNamespaceLock() throws IllegalArgumentException {<a name="line.368"></a>
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TableName.NAMESPACE_TABLE_NAME;<a name="line.369"></a>
+<span class="sourceLineNo">370</span> switch (type) {<a name="line.370"></a>
+<span class="sourceLineNo">371</span> case EXCLUSIVE:<a
name="line.371"></a>
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TableOperationType.EDIT;<a name="line.372"></a>
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NamespaceExclusiveLock();<a name="line.373"></a>
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+<span class="sourceLineNo">375</span> LOG.error("Shared lock on
namespace not supported for " + toString());<a name="line.375"></a>
+<span class="sourceLineNo">376</span> throw new
IllegalArgumentException("Shared lock on namespace not supported");<a
name="line.376"></a>
+<span class="sourceLineNo">377</span> default:<a name="line.377"></a>
+<span class="sourceLineNo">378</span> LOG.error("Unexpected lock type "
+ toString());<a name="line.378"></a>
+<span class="sourceLineNo">379</span> throw new
IllegalArgumentException("Wrong lock type: " + type.toString());<a
name="line.379"></a>
+<span class="sourceLineNo">380</span> }<a name="line.380"></a>
+<span class="sourceLineNo">381</span> }<a name="line.381"></a>
+<span class="sourceLineNo">382</span><a name="line.382"></a>
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throws IllegalArgumentException {<a name="line.383"></a>
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name="line.385"></a>
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TableOperationType.EDIT;<a name="line.386"></a>
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TableExclusiveLock();<a name="line.387"></a>
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+<span class="sourceLineNo">389</span> this.opType =
TableOperationType.READ;<a name="line.389"></a>
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name="line.390"></a>
+<span class="sourceLineNo">391</span> default:<a name="line.391"></a>
+<span class="sourceLineNo">392</span> LOG.error("Unexpected lock type "
+ toString());<a name="line.392"></a>
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IllegalArgumentException("Wrong lock type:" + type.toString());<a
name="line.393"></a>
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+<span class="sourceLineNo">395</span> }<a name="line.395"></a>
+<span class="sourceLineNo">396</span><a name="line.396"></a>
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throws IllegalArgumentException {<a name="line.397"></a>
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regionInfos[0].getTable();<a name="line.398"></a>
+<span class="sourceLineNo">399</span> switch (type) {<a name="line.399"></a>
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name="line.400"></a>
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TableOperationType.REGION_EDIT;<a name="line.401"></a>
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RegionExclusiveLock();<a name="line.402"></a>
+<span class="sourceLineNo">403</span> default:<a name="line.403"></a>
+<span class="sourceLineNo">404</span> LOG.error("Only exclusive lock
supported on regions for " + toString());<a name="line.404"></a>
+<span class="sourceLineNo">405</span> throw new
IllegalArgumentException("Only exclusive lock supported on regions.");<a
name="line.405"></a>
+<span class="sourceLineNo">406</span> }<a name="line.406"></a>
+<span class="sourceLineNo">407</span> }<a name="line.407"></a>
+<span class="sourceLineNo">408</span><a name="line.408"></a>
+<span class="sourceLineNo">409</span> public String getDescription() {<a
name="line.409"></a>
+<span class="sourceLineNo">410</span> return description;<a
name="line.410"></a>
<span class="sourceLineNo">411</span> }<a name="line.411"></a>
<span class="sourceLineNo">412</span><a name="line.412"></a>
-<span class="sourceLineNo">413</span> public String getDescription() {<a
name="line.413"></a>
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name="line.414"></a>
+<span class="sourceLineNo">413</span> public boolean isLocked() {<a
name="line.413"></a>
+<span class="sourceLineNo">414</span> return locked.get();<a
name="line.414"></a>
<span class="sourceLineNo">415</span> }<a name="line.415"></a>
<span class="sourceLineNo">416</span><a name="line.416"></a>
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name="line.417"></a>
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name="line.418"></a>
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-<span class="sourceLineNo">423</span> return true;<a name="line.423"></a>
-<span class="sourceLineNo">424</span> }<a name="line.424"></a>
+<span class="sourceLineNo">417</span> @Override<a name="line.417"></a>
+<span class="sourceLineNo">418</span> public boolean holdLock(final
MasterProcedureEnv env) {<a name="line.418"></a>
+<span class="sourceLineNo">419</span> return true;<a name="line.419"></a>
+<span class="sourceLineNo">420</span> }<a name="line.420"></a>
+<span class="sourceLineNo">421</span><a name="line.421"></a>
+<span class="sourceLineNo">422</span> ///////////////////////<a
name="line.422"></a>
+<span class="sourceLineNo">423</span> // LOCK IMPLEMENTATIONS<a
name="line.423"></a>
+<span class="sourceLineNo">424</span> ///////////////////////<a
name="line.424"></a>
<span class="sourceLineNo">425</span><a name="line.425"></a>
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-<span class="sourceLineNo">427</span> public boolean hasLock(final
MasterProcedureEnv env) {<a name="line.427"></a>
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-<span class="sourceLineNo">431</span> ///////////////////////<a
name="line.431"></a>
-<span class="sourceLineNo">432</span> // LOCK IMPLEMENTATIONS<a
name="line.432"></a>
-<span class="sourceLineNo">433</span> ///////////////////////<a
name="line.433"></a>
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implements LockInterface {<a name="line.435"></a>
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MasterProcedureEnv env) {<a name="line.437"></a>
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waitNamespaceExclusiveLock; it returns true if you HAVE TO WAIT<a
name="line.438"></a>
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don't; i.e. you got the lock.<a name="line.439"></a>
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!env.getProcedureScheduler().waitTableExclusiveLock(LockProcedure.this,
tableName);<a name="line.440"></a>
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MasterProcedureEnv env) {<a name="line.444"></a>
-<span class="sourceLineNo">445</span>
env.getProcedureScheduler().wakeTableExclusiveLock(LockProcedure.this,
tableName);<a name="line.445"></a>
+<span class="sourceLineNo">426</span> private class TableExclusiveLock
implements LockInterface {<a name="line.426"></a>
+<span class="sourceLineNo">427</span> @Override<a name="line.427"></a>
+<span class="sourceLineNo">428</span> public boolean acquireLock(final
MasterProcedureEnv env) {<a name="line.428"></a>
+<span class="sourceLineNo">429</span> // We invert return from
waitNamespaceExclusiveLock; it returns true if you HAVE TO WAIT<a
name="line.429"></a>
+<span class="sourceLineNo">430</span> // to get the lock and false if you
don't; i.e. you got the lock.<a name="line.430"></a>
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!env.getProcedureScheduler().waitTableExclusiveLock(LockProcedure.this,
tableName);<a name="line.431"></a>
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MasterProcedureEnv env) {<a name="line.435"></a>
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env.getProcedureScheduler().wakeTableExclusiveLock(LockProcedure.this,
tableName);<a name="line.436"></a>
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+<span class="sourceLineNo">439</span><a name="line.439"></a>
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implements LockInterface {<a name="line.440"></a>
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MasterProcedureEnv env) {<a name="line.442"></a>
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waitNamespaceExclusiveLock; it returns true if you HAVE TO WAIT<a
name="line.443"></a>
+<span class="sourceLineNo">444</span> // to get the lock and false if you
don't; i.e. you got the lock.<a name="line.444"></a>
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!env.getProcedureScheduler().waitTableSharedLock(LockProcedure.this,
tableName);<a name="line.445"></a>
<span class="sourceLineNo">446</span> }<a name="line.446"></a>
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waitNamespaceExclusiveLock; it returns true if you HAVE TO WAIT<a
name="line.452"></a>
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don't; i.e. you got the lock.<a name="line.453"></a>
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!env.getProcedureScheduler().waitTableSharedLock(LockProcedure.this,
tableName);<a name="line.454"></a>
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MasterProcedureEnv env) {<a name="line.458"></a>
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env.getProcedureScheduler().wakeTableSharedLock(LockProcedure.this,
tableName);<a name="line.459"></a>
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MasterProcedureEnv env) {<a name="line.449"></a>
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env.getProcedureScheduler().wakeTableSharedLock(LockProcedure.this,
tableName);<a name="line.450"></a>
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+<span class="sourceLineNo">452</span> }<a name="line.452"></a>
+<span class="sourceLineNo">453</span><a name="line.453"></a>
+<span class="sourceLineNo">454</span> private class NamespaceExclusiveLock
implements LockInterface {<a name="line.454"></a>
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+<span class="sourceLineNo">456</span> public boolean acquireLock(final
MasterProcedureEnv env) {<a name="line.456"></a>
+<span class="sourceLineNo">457</span> // We invert return from
waitNamespaceExclusiveLock; it returns true if you HAVE TO WAIT<a
name="line.457"></a>
+<span class="sourceLineNo">458</span> // to get the lock and false if you
don't; i.e. you got the lock.<a name="line.458"></a>
+<span class="sourceLineNo">459</span> return
!env.getProcedureScheduler().waitNamespaceExclusiveLock(<a name="line.459"></a>
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namespace);<a name="line.460"></a>
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<span class="sourceLineNo">462</span><a name="line.462"></a>
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implements LockInterface {<a name="line.463"></a>
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MasterProcedureEnv env) {<a name="line.465"></a>
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waitNamespaceExclusiveLock; it returns true if you HAVE TO WAIT<a
name="line.466"></a>
-<span class="sourceLineNo">467</span> // to get the lock and false if you
don't; i.e. you got the lock.<a name="line.467"></a>
-<span class="sourceLineNo">468</span> return
!env.getProcedureScheduler().waitNamespaceExclusiveLock(<a name="line.468"></a>
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namespace);<a name="line.469"></a>
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MasterProcedureEnv env) {<a name="line.473"></a>
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env.getProcedureScheduler().wakeNamespaceExclusiveLock(<a name="line.474"></a>
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namespace);<a name="line.475"></a>
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+<span class="sourceLineNo">464</span> public void releaseLock(final
MasterProcedureEnv env) {<a name="line.464"></a>
+<span class="sourceLineNo">465</span>
env.getProcedureScheduler().wakeNamespaceExclusiveLock(<a name="line.465"></a>
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namespace);<a name="line.466"></a>
+<span class="sourceLineNo">467</span> }<a name="line.467"></a>
+<span class="sourceLineNo">468</span> }<a name="line.468"></a>
+<span class="sourceLineNo">469</span><a name="line.469"></a>
+<span class="sourceLineNo">470</span> private class RegionExclusiveLock
implements LockInterface {<a name="line.470"></a>
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+<span class="sourceLineNo">472</span> public boolean acquireLock(final
MasterProcedureEnv env) {<a name="line.472"></a>
+<span class="sourceLineNo">473</span> // We invert return from
waitNamespaceExclusiveLock; it returns true if you HAVE TO WAIT<a
name="line.473"></a>
+<span class="sourceLineNo">474</span> // to get the lock and false if you
don't; i.e. you got the lock.<a name="line.474"></a>
+<span class="sourceLineNo">475</span> return
!env.getProcedureScheduler().waitRegions(LockProcedure.this, tableName,
regionInfos);<a name="line.475"></a>
<span class="sourceLineNo">476</span> }<a name="line.476"></a>
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implements LockInterface {<a name="line.479"></a>
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MasterProcedureEnv env) {<a name="line.481"></a>
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waitNamespaceExclusiveLock; it returns true if you HAVE TO WAIT<a
name="line.482"></a>
-<span class="sourceLineNo">483</span> // to get the lock and false if you
don't; i.e. you got the lock.<a name="line.483"></a>
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!env.getProcedureScheduler().waitRegions(LockProcedure.this, tableName,
regionInfos);<a name="line.484"></a>
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MasterProcedureEnv env) {<a name="line.488"></a>
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env.getProcedureScheduler().wakeRegions(LockProcedure.this, tableName,
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+<span class="sourceLineNo">478</span> @Override<a name="line.478"></a>
+<span class="sourceLineNo">479</span> public void releaseLock(final
MasterProcedureEnv env) {<a name="line.479"></a>
+<span class="sourceLineNo">480</span>
env.getProcedureScheduler().wakeRegions(LockProcedure.this, tableName,
regionInfos);<a name="line.480"></a>
+<span class="sourceLineNo">481</span> }<a name="line.481"></a>
+<span class="sourceLineNo">482</span> }<a name="line.482"></a>
+<span class="sourceLineNo">483</span>}<a name="line.483"></a>