http://git-wip-us.apache.org/repos/asf/hbase-site/blob/4a429994/apidocs/src-html/org/apache/hadoop/hbase/util/RegionMover.html ---------------------------------------------------------------------- diff --git a/apidocs/src-html/org/apache/hadoop/hbase/util/RegionMover.html b/apidocs/src-html/org/apache/hadoop/hbase/util/RegionMover.html index 701d135..fe7808c 100644 --- a/apidocs/src-html/org/apache/hadoop/hbase/util/RegionMover.html +++ b/apidocs/src-html/org/apache/hadoop/hbase/util/RegionMover.html @@ -71,946 +71,950 @@ <span class="sourceLineNo">063</span>import org.slf4j.Logger;<a name="line.63"></a> <span class="sourceLineNo">064</span>import org.slf4j.LoggerFactory;<a name="line.64"></a> <span class="sourceLineNo">065</span><a name="line.65"></a> -<span class="sourceLineNo">066</span>import org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine;<a name="line.66"></a> -<span class="sourceLineNo">067</span><a name="line.67"></a> -<span class="sourceLineNo">068</span>/**<a name="line.68"></a> -<span class="sourceLineNo">069</span> * Tool for loading/unloading regions to/from given regionserver This tool can be run from Command<a name="line.69"></a> -<span class="sourceLineNo">070</span> * line directly as a utility. Supports Ack/No Ack mode for loading/unloading operations.Ack mode<a name="line.70"></a> -<span class="sourceLineNo">071</span> * acknowledges if regions are online after movement while noAck mode is best effort mode that<a name="line.71"></a> -<span class="sourceLineNo">072</span> * improves performance but will still move on if region is stuck/not moved. Motivation behind noAck<a name="line.72"></a> -<span class="sourceLineNo">073</span> * mode being RS shutdown where even if a Region is stuck, upon shutdown master will move it<a name="line.73"></a> -<span class="sourceLineNo">074</span> * anyways. This can also be used by constructiong an Object using the builder and then calling<a name="line.74"></a> -<span class="sourceLineNo">075</span> * {@link #load()} or {@link #unload()} methods for the desired operations.<a name="line.75"></a> -<span class="sourceLineNo">076</span> */<a name="line.76"></a> -<span class="sourceLineNo">077</span>@InterfaceAudience.Public<a name="line.77"></a> -<span class="sourceLineNo">078</span>public class RegionMover extends AbstractHBaseTool {<a name="line.78"></a> -<span class="sourceLineNo">079</span> public static final String MOVE_RETRIES_MAX_KEY = "hbase.move.retries.max";<a name="line.79"></a> -<span class="sourceLineNo">080</span> public static final String MOVE_WAIT_MAX_KEY = "hbase.move.wait.max";<a name="line.80"></a> -<span class="sourceLineNo">081</span> public static final String SERVERSTART_WAIT_MAX_KEY = "hbase.serverstart.wait.max";<a name="line.81"></a> -<span class="sourceLineNo">082</span> public static final int DEFAULT_MOVE_RETRIES_MAX = 5;<a name="line.82"></a> -<span class="sourceLineNo">083</span> public static final int DEFAULT_MOVE_WAIT_MAX = 60;<a name="line.83"></a> -<span class="sourceLineNo">084</span> public static final int DEFAULT_SERVERSTART_WAIT_MAX = 180;<a name="line.84"></a> -<span class="sourceLineNo">085</span> static final Logger LOG = LoggerFactory.getLogger(RegionMover.class);<a name="line.85"></a> -<span class="sourceLineNo">086</span> private RegionMoverBuilder rmbuilder;<a name="line.86"></a> -<span class="sourceLineNo">087</span> private boolean ack = true;<a name="line.87"></a> -<span class="sourceLineNo">088</span> private int maxthreads = 1;<a name="line.88"></a> -<span class="sourceLineNo">089</span> private int timeout;<a name="line.89"></a> -<span class="sourceLineNo">090</span> private String loadUnload;<a name="line.90"></a> -<span class="sourceLineNo">091</span> private String hostname;<a name="line.91"></a> -<span class="sourceLineNo">092</span> private String filename;<a name="line.92"></a> -<span class="sourceLineNo">093</span> private String excludeFile;<a name="line.93"></a> -<span class="sourceLineNo">094</span> private int port;<a name="line.94"></a> -<span class="sourceLineNo">095</span><a name="line.95"></a> -<span class="sourceLineNo">096</span> private RegionMover(RegionMoverBuilder builder) {<a name="line.96"></a> -<span class="sourceLineNo">097</span> this.hostname = builder.hostname;<a name="line.97"></a> -<span class="sourceLineNo">098</span> this.filename = builder.filename;<a name="line.98"></a> -<span class="sourceLineNo">099</span> this.excludeFile = builder.excludeFile;<a name="line.99"></a> -<span class="sourceLineNo">100</span> this.maxthreads = builder.maxthreads;<a name="line.100"></a> -<span class="sourceLineNo">101</span> this.ack = builder.ack;<a name="line.101"></a> -<span class="sourceLineNo">102</span> this.port = builder.port;<a name="line.102"></a> -<span class="sourceLineNo">103</span> this.timeout = builder.timeout;<a name="line.103"></a> -<span class="sourceLineNo">104</span> }<a name="line.104"></a> -<span class="sourceLineNo">105</span><a name="line.105"></a> -<span class="sourceLineNo">106</span> private RegionMover() {<a name="line.106"></a> -<span class="sourceLineNo">107</span> }<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> * Builder for Region mover. Use the {@link #build()} method to create RegionMover object. Has<a name="line.110"></a> -<span class="sourceLineNo">111</span> * {@link #filename(String)}, {@link #excludeFile(String)}, {@link #maxthreads(int)},<a name="line.111"></a> -<span class="sourceLineNo">112</span> * {@link #ack(boolean)}, {@link #timeout(int)} methods to set the corresponding options<a name="line.112"></a> -<span class="sourceLineNo">113</span> */<a name="line.113"></a> -<span class="sourceLineNo">114</span> public static class RegionMoverBuilder {<a name="line.114"></a> -<span class="sourceLineNo">115</span> private boolean ack = true;<a name="line.115"></a> -<span class="sourceLineNo">116</span> private int maxthreads = 1;<a name="line.116"></a> -<span class="sourceLineNo">117</span> private int timeout = Integer.MAX_VALUE;<a name="line.117"></a> -<span class="sourceLineNo">118</span> private String hostname;<a name="line.118"></a> -<span class="sourceLineNo">119</span> private String filename;<a name="line.119"></a> -<span class="sourceLineNo">120</span> private String excludeFile = null;<a name="line.120"></a> -<span class="sourceLineNo">121</span> String defaultDir = System.getProperty("java.io.tmpdir");<a name="line.121"></a> -<span class="sourceLineNo">122</span><a name="line.122"></a> -<span class="sourceLineNo">123</span> private int port = HConstants.DEFAULT_REGIONSERVER_PORT;<a name="line.123"></a> +<span class="sourceLineNo">066</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.66"></a> +<span class="sourceLineNo">067</span>import org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine;<a name="line.67"></a> +<span class="sourceLineNo">068</span><a name="line.68"></a> +<span class="sourceLineNo">069</span>/**<a name="line.69"></a> +<span class="sourceLineNo">070</span> * Tool for loading/unloading regions to/from given regionserver This tool can be run from Command<a name="line.70"></a> +<span class="sourceLineNo">071</span> * line directly as a utility. Supports Ack/No Ack mode for loading/unloading operations.Ack mode<a name="line.71"></a> +<span class="sourceLineNo">072</span> * acknowledges if regions are online after movement while noAck mode is best effort mode that<a name="line.72"></a> +<span class="sourceLineNo">073</span> * improves performance but will still move on if region is stuck/not moved. Motivation behind noAck<a name="line.73"></a> +<span class="sourceLineNo">074</span> * mode being RS shutdown where even if a Region is stuck, upon shutdown master will move it<a name="line.74"></a> +<span class="sourceLineNo">075</span> * anyways. This can also be used by constructiong an Object using the builder and then calling<a name="line.75"></a> +<span class="sourceLineNo">076</span> * {@link #load()} or {@link #unload()} methods for the desired operations.<a name="line.76"></a> +<span class="sourceLineNo">077</span> */<a name="line.77"></a> +<span class="sourceLineNo">078</span>@InterfaceAudience.Public<a name="line.78"></a> +<span class="sourceLineNo">079</span>public class RegionMover extends AbstractHBaseTool {<a name="line.79"></a> +<span class="sourceLineNo">080</span> public static final String MOVE_RETRIES_MAX_KEY = "hbase.move.retries.max";<a name="line.80"></a> +<span class="sourceLineNo">081</span> public static final String MOVE_WAIT_MAX_KEY = "hbase.move.wait.max";<a name="line.81"></a> +<span class="sourceLineNo">082</span> public static final String SERVERSTART_WAIT_MAX_KEY = "hbase.serverstart.wait.max";<a name="line.82"></a> +<span class="sourceLineNo">083</span> public static final int DEFAULT_MOVE_RETRIES_MAX = 5;<a name="line.83"></a> +<span class="sourceLineNo">084</span> public static final int DEFAULT_MOVE_WAIT_MAX = 60;<a name="line.84"></a> +<span class="sourceLineNo">085</span> public static final int DEFAULT_SERVERSTART_WAIT_MAX = 180;<a name="line.85"></a> +<span class="sourceLineNo">086</span> static final Logger LOG = LoggerFactory.getLogger(RegionMover.class);<a name="line.86"></a> +<span class="sourceLineNo">087</span> private RegionMoverBuilder rmbuilder;<a name="line.87"></a> +<span class="sourceLineNo">088</span> private boolean ack = true;<a name="line.88"></a> +<span class="sourceLineNo">089</span> private int maxthreads = 1;<a name="line.89"></a> +<span class="sourceLineNo">090</span> private int timeout;<a name="line.90"></a> +<span class="sourceLineNo">091</span> private String loadUnload;<a name="line.91"></a> +<span class="sourceLineNo">092</span> private String hostname;<a name="line.92"></a> +<span class="sourceLineNo">093</span> private String filename;<a name="line.93"></a> +<span class="sourceLineNo">094</span> private String excludeFile;<a name="line.94"></a> +<span class="sourceLineNo">095</span> private int port;<a name="line.95"></a> +<span class="sourceLineNo">096</span><a name="line.96"></a> +<span class="sourceLineNo">097</span> private RegionMover(RegionMoverBuilder builder) {<a name="line.97"></a> +<span class="sourceLineNo">098</span> this.hostname = builder.hostname;<a name="line.98"></a> +<span class="sourceLineNo">099</span> this.filename = builder.filename;<a name="line.99"></a> +<span class="sourceLineNo">100</span> this.excludeFile = builder.excludeFile;<a name="line.100"></a> +<span class="sourceLineNo">101</span> this.maxthreads = builder.maxthreads;<a name="line.101"></a> +<span class="sourceLineNo">102</span> this.ack = builder.ack;<a name="line.102"></a> +<span class="sourceLineNo">103</span> this.port = builder.port;<a name="line.103"></a> +<span class="sourceLineNo">104</span> this.timeout = builder.timeout;<a name="line.104"></a> +<span class="sourceLineNo">105</span> setConf(builder.conf);<a name="line.105"></a> +<span class="sourceLineNo">106</span> }<a name="line.106"></a> +<span class="sourceLineNo">107</span><a name="line.107"></a> +<span class="sourceLineNo">108</span> private RegionMover() {<a name="line.108"></a> +<span class="sourceLineNo">109</span> }<a name="line.109"></a> +<span class="sourceLineNo">110</span><a name="line.110"></a> +<span class="sourceLineNo">111</span> /**<a name="line.111"></a> +<span class="sourceLineNo">112</span> * Builder for Region mover. Use the {@link #build()} method to create RegionMover object. Has<a name="line.112"></a> +<span class="sourceLineNo">113</span> * {@link #filename(String)}, {@link #excludeFile(String)}, {@link #maxthreads(int)},<a name="line.113"></a> +<span class="sourceLineNo">114</span> * {@link #ack(boolean)}, {@link #timeout(int)} methods to set the corresponding options<a name="line.114"></a> +<span class="sourceLineNo">115</span> */<a name="line.115"></a> +<span class="sourceLineNo">116</span> public static class RegionMoverBuilder {<a name="line.116"></a> +<span class="sourceLineNo">117</span> private boolean ack = true;<a name="line.117"></a> +<span class="sourceLineNo">118</span> private int maxthreads = 1;<a name="line.118"></a> +<span class="sourceLineNo">119</span> private int timeout = Integer.MAX_VALUE;<a name="line.119"></a> +<span class="sourceLineNo">120</span> private String hostname;<a name="line.120"></a> +<span class="sourceLineNo">121</span> private String filename;<a name="line.121"></a> +<span class="sourceLineNo">122</span> private String excludeFile = null;<a name="line.122"></a> +<span class="sourceLineNo">123</span> private String defaultDir = System.getProperty("java.io.tmpdir");<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> * @param hostname Hostname to unload regions from or load regions to. Can be either hostname<a name="line.126"></a> -<span class="sourceLineNo">127</span> * or hostname:port.<a name="line.127"></a> -<span class="sourceLineNo">128</span> */<a name="line.128"></a> +<span class="sourceLineNo">125</span> @VisibleForTesting<a name="line.125"></a> +<span class="sourceLineNo">126</span> final int port;<a name="line.126"></a> +<span class="sourceLineNo">127</span> private final Configuration conf;<a name="line.127"></a> +<span class="sourceLineNo">128</span><a name="line.128"></a> <span class="sourceLineNo">129</span> public RegionMoverBuilder(String hostname) {<a name="line.129"></a> -<span class="sourceLineNo">130</span> String[] splitHostname = hostname.toLowerCase().split(":");<a name="line.130"></a> -<span class="sourceLineNo">131</span> this.hostname = splitHostname[0];<a name="line.131"></a> -<span class="sourceLineNo">132</span> if (splitHostname.length == 2) {<a name="line.132"></a> -<span class="sourceLineNo">133</span> this.port = Integer.parseInt(splitHostname[1]);<a name="line.133"></a> -<span class="sourceLineNo">134</span> }<a name="line.134"></a> -<span class="sourceLineNo">135</span> setDefaultfilename(this.hostname);<a name="line.135"></a> -<span class="sourceLineNo">136</span> }<a name="line.136"></a> -<span class="sourceLineNo">137</span><a name="line.137"></a> -<span class="sourceLineNo">138</span> private void setDefaultfilename(String hostname) {<a name="line.138"></a> -<span class="sourceLineNo">139</span> this.filename =<a name="line.139"></a> -<span class="sourceLineNo">140</span> defaultDir + File.separator + System.getProperty("user.name") + this.hostname + ":"<a name="line.140"></a> -<span class="sourceLineNo">141</span> + Integer.toString(this.port);<a name="line.141"></a> +<span class="sourceLineNo">130</span> this(hostname, createConf());<a name="line.130"></a> +<span class="sourceLineNo">131</span> }<a name="line.131"></a> +<span class="sourceLineNo">132</span><a name="line.132"></a> +<span class="sourceLineNo">133</span> /**<a name="line.133"></a> +<span class="sourceLineNo">134</span> * Creates a new configuration and sets region mover specific overrides<a name="line.134"></a> +<span class="sourceLineNo">135</span> */<a name="line.135"></a> +<span class="sourceLineNo">136</span> private static Configuration createConf() {<a name="line.136"></a> +<span class="sourceLineNo">137</span> Configuration conf = HBaseConfiguration.create();<a name="line.137"></a> +<span class="sourceLineNo">138</span> conf.setInt("hbase.client.prefetch.limit", 1);<a name="line.138"></a> +<span class="sourceLineNo">139</span> conf.setInt("hbase.client.pause", 500);<a name="line.139"></a> +<span class="sourceLineNo">140</span> conf.setInt("hbase.client.retries.number", 100);<a name="line.140"></a> +<span class="sourceLineNo">141</span> return conf;<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> * Path of file where regions will be written to during unloading/read from during loading<a name="line.145"></a> -<span class="sourceLineNo">146</span> * @param filename<a name="line.146"></a> -<span class="sourceLineNo">147</span> * @return RegionMoverBuilder object<a name="line.147"></a> +<span class="sourceLineNo">145</span> * @param hostname Hostname to unload regions from or load regions to. Can be either hostname<a name="line.145"></a> +<span class="sourceLineNo">146</span> * or hostname:port.<a name="line.146"></a> +<span class="sourceLineNo">147</span> * @param conf Configuration object<a name="line.147"></a> <span class="sourceLineNo">148</span> */<a name="line.148"></a> -<span class="sourceLineNo">149</span> public RegionMoverBuilder filename(String filename) {<a name="line.149"></a> -<span class="sourceLineNo">150</span> this.filename = filename;<a name="line.150"></a> -<span class="sourceLineNo">151</span> return this;<a name="line.151"></a> -<span class="sourceLineNo">152</span> }<a 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> * Set the max number of threads that will be used to move regions<a name="line.155"></a> -<span class="sourceLineNo">156</span> */<a name="line.156"></a> -<span class="sourceLineNo">157</span> public RegionMoverBuilder maxthreads(int threads) {<a name="line.157"></a> -<span class="sourceLineNo">158</span> this.maxthreads = threads;<a name="line.158"></a> -<span class="sourceLineNo">159</span> return this;<a name="line.159"></a> +<span class="sourceLineNo">149</span> public RegionMoverBuilder(String hostname, Configuration conf) {<a name="line.149"></a> +<span class="sourceLineNo">150</span> String[] splitHostname = hostname.toLowerCase().split(":");<a name="line.150"></a> +<span class="sourceLineNo">151</span> this.hostname = splitHostname[0];<a name="line.151"></a> +<span class="sourceLineNo">152</span> if (splitHostname.length == 2) {<a name="line.152"></a> +<span class="sourceLineNo">153</span> this.port = Integer.parseInt(splitHostname[1]);<a name="line.153"></a> +<span class="sourceLineNo">154</span> } else {<a name="line.154"></a> +<span class="sourceLineNo">155</span> this.port = conf.getInt(HConstants.REGIONSERVER_PORT, HConstants.DEFAULT_REGIONSERVER_PORT);<a name="line.155"></a> +<span class="sourceLineNo">156</span> }<a name="line.156"></a> +<span class="sourceLineNo">157</span> this.filename = defaultDir + File.separator + System.getProperty("user.name") + this.hostname<a name="line.157"></a> +<span class="sourceLineNo">158</span> + ":" + Integer.toString(this.port);<a name="line.158"></a> +<span class="sourceLineNo">159</span> this.conf = conf;<a name="line.159"></a> <span class="sourceLineNo">160</span> }<a name="line.160"></a> <span class="sourceLineNo">161</span><a name="line.161"></a> <span class="sourceLineNo">162</span> /**<a name="line.162"></a> -<span class="sourceLineNo">163</span> * Path of file containing hostnames to be excluded during region movement. Exclude file should<a name="line.163"></a> -<span class="sourceLineNo">164</span> * have 'host:port' per line. Port is mandatory here as we can have many RS running on a single<a name="line.164"></a> -<span class="sourceLineNo">165</span> * host.<a name="line.165"></a> +<span class="sourceLineNo">163</span> * Path of file where regions will be written to during unloading/read from during loading<a name="line.163"></a> +<span class="sourceLineNo">164</span> * @param filename<a name="line.164"></a> +<span class="sourceLineNo">165</span> * @return RegionMoverBuilder object<a name="line.165"></a> <span class="sourceLineNo">166</span> */<a name="line.166"></a> -<span class="sourceLineNo">167</span> public RegionMoverBuilder excludeFile(String excludefile) {<a name="line.167"></a> -<span class="sourceLineNo">168</span> this.excludeFile = excludefile;<a name="line.168"></a> +<span class="sourceLineNo">167</span> public RegionMoverBuilder filename(String filename) {<a name="line.167"></a> +<span class="sourceLineNo">168</span> this.filename = filename;<a name="line.168"></a> <span class="sourceLineNo">169</span> return this;<a name="line.169"></a> <span class="sourceLineNo">170</span> }<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> * Set ack/noAck mode.<a name="line.173"></a> -<span class="sourceLineNo">174</span> * <p><a name="line.174"></a> -<span class="sourceLineNo">175</span> * In ack mode regions are acknowledged before and after moving and the move is retried<a name="line.175"></a> -<span class="sourceLineNo">176</span> * hbase.move.retries.max times, if unsuccessful we quit with exit code 1.No Ack mode is a best<a name="line.176"></a> -<span class="sourceLineNo">177</span> * effort mode,each region movement is tried once.This can be used during graceful shutdown as<a name="line.177"></a> -<span class="sourceLineNo">178</span> * even if we have a stuck region,upon shutdown it'll be reassigned anyway.<a name="line.178"></a> -<span class="sourceLineNo">179</span> * <p><a name="line.179"></a> -<span class="sourceLineNo">180</span> * @param ack<a name="line.180"></a> -<span class="sourceLineNo">181</span> * @return RegionMoverBuilder object<a name="line.181"></a> -<span class="sourceLineNo">182</span> */<a name="line.182"></a> -<span class="sourceLineNo">183</span> public RegionMoverBuilder ack(boolean ack) {<a name="line.183"></a> -<span class="sourceLineNo">184</span> this.ack = ack;<a name="line.184"></a> -<span class="sourceLineNo">185</span> return this;<a name="line.185"></a> -<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> /**<a name="line.188"></a> -<span class="sourceLineNo">189</span> * Set the timeout for Load/Unload operation in seconds.This is a global timeout,threadpool for<a name="line.189"></a> -<span class="sourceLineNo">190</span> * movers also have a separate time which is hbase.move.wait.max * number of regions to<a name="line.190"></a> -<span class="sourceLineNo">191</span> * load/unload<a name="line.191"></a> -<span class="sourceLineNo">192</span> * @param timeout in seconds<a name="line.192"></a> -<span class="sourceLineNo">193</span> * @return RegionMoverBuilder object<a name="line.193"></a> -<span class="sourceLineNo">194</span> */<a name="line.194"></a> -<span class="sourceLineNo">195</span> public RegionMoverBuilder timeout(int timeout) {<a name="line.195"></a> -<span class="sourceLineNo">196</span> this.timeout = timeout;<a name="line.196"></a> -<span class="sourceLineNo">197</span> return this;<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> /**<a name="line.200"></a> -<span class="sourceLineNo">201</span> * This method builds the appropriate RegionMover object which can then be used to load/unload<a name="line.201"></a> -<span class="sourceLineNo">202</span> * using load and unload methods<a name="line.202"></a> -<span class="sourceLineNo">203</span> * @return RegionMover object<a name="line.203"></a> -<span class="sourceLineNo">204</span> */<a name="line.204"></a> -<span class="sourceLineNo">205</span> public RegionMover build() {<a name="line.205"></a> -<span class="sourceLineNo">206</span> return new RegionMover(this);<a name="line.206"></a> -<span class="sourceLineNo">207</span> }<a name="line.207"></a> -<span class="sourceLineNo">208</span> }<a name="line.208"></a> -<span class="sourceLineNo">209</span><a name="line.209"></a> -<span class="sourceLineNo">210</span> /**<a name="line.210"></a> -<span class="sourceLineNo">211</span> * Loads the specified {@link #hostname} with regions listed in the {@link #filename} RegionMover<a name="line.211"></a> -<span class="sourceLineNo">212</span> * Object has to be created using {@link #RegionMover(RegionMoverBuilder)}<a 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e);<a name="line.306"></a> -<span class="sourceLineNo">307</span> throw e;<a name="line.307"></a> -<span class="sourceLineNo">308</span> } catch (ExecutionException e) {<a name="line.308"></a> -<span class="sourceLineNo">309</span> LOG.error("Error while unloading regions from RegionServer " + this.hostname, e);<a name="line.309"></a> -<span class="sourceLineNo">310</span> throw e;<a name="line.310"></a> -<span class="sourceLineNo">311</span> }<a name="line.311"></a> -<span class="sourceLineNo">312</span> }<a name="line.312"></a> -<span class="sourceLineNo">313</span><a name="line.313"></a> -<span class="sourceLineNo">314</span> private class Unload implements Callable<Boolean> {<a name="line.314"></a> -<span class="sourceLineNo">315</span><a name="line.315"></a> -<span class="sourceLineNo">316</span> List<RegionInfo> movedRegions = Collections.synchronizedList(new ArrayList<RegionInfo>());<a name="line.316"></a> -<span class="sourceLineNo">317</span> private RegionMover rm;<a 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Exclude file should<a name="line.181"></a> +<span class="sourceLineNo">182</span> * have 'host:port' per line. 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return this;<a name="line.203"></a> +<span class="sourceLineNo">204</span> }<a name="line.204"></a> +<span class="sourceLineNo">205</span><a name="line.205"></a> +<span class="sourceLineNo">206</span> /**<a name="line.206"></a> +<span class="sourceLineNo">207</span> * Set the timeout for Load/Unload operation in seconds.This is a global timeout,threadpool for<a name="line.207"></a> +<span class="sourceLineNo">208</span> * movers also have a separate time which is hbase.move.wait.max * number of regions to<a name="line.208"></a> +<span class="sourceLineNo">209</span> * load/unload<a name="line.209"></a> +<span class="sourceLineNo">210</span> * @param timeout in seconds<a name="line.210"></a> +<span class="sourceLineNo">211</span> * @return RegionMoverBuilder object<a name="line.211"></a> +<span class="sourceLineNo">212</span> */<a name="line.212"></a> +<span class="sourceLineNo">213</span> public RegionMoverBuilder timeout(int timeout) {<a name="line.213"></a> +<span 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+<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> * Loads the specified {@link #hostname} with regions listed in the {@link #filename} RegionMover<a name="line.229"></a> +<span class="sourceLineNo">230</span> * Object has to be created using {@link #RegionMover(RegionMoverBuilder)}<a name="line.230"></a> +<span class="sourceLineNo">231</span> * @return true if loading succeeded, false otherwise<a name="line.231"></a> +<span class="sourceLineNo">232</span> * @throws ExecutionException<a name="line.232"></a> +<span class="sourceLineNo">233</span> * @throws InterruptedException if the loader thread was interrupted<a name="line.233"></a> +<span class="sourceLineNo">234</span> * @throws TimeoutException<a name="line.234"></a> +<span class="sourceLineNo">235</span> */<a name="line.235"></a> +<span class="sourceLineNo">236</span> public boolean load() throws ExecutionException, InterruptedException, TimeoutException {<a name="line.236"></a> +<span class="sourceLineNo">237</span> ExecutorService loadPool = Executors.newFixedThreadPool(1);<a name="line.237"></a> +<span class="sourceLineNo">238</span> Future<Boolean> loadTask = loadPool.submit(new Load(this));<a name="line.238"></a> +<span class="sourceLineNo">239</span> loadPool.shutdown();<a name="line.239"></a> +<span class="sourceLineNo">240</span> try {<a name="line.240"></a> +<span class="sourceLineNo">241</span> if (!loadPool.awaitTermination((long) this.timeout, TimeUnit.SECONDS)) {<a name="line.241"></a> +<span class="sourceLineNo">242</span> LOG.warn("Timed out before finishing the loading operation. Timeout:" + this.timeout<a name="line.242"></a> +<span class="sourceLineNo">243</span> + "sec");<a name="line.243"></a> +<span class="sourceLineNo">244</span> loadPool.shutdownNow();<a name="line.244"></a> +<span class="sourceLineNo">245</span> }<a name="line.245"></a> +<span class="sourceLineNo">246</span> } catch (InterruptedException e) {<a name="line.246"></a> +<span class="sourceLineNo">247</span> loadPool.shutdownNow();<a name="line.247"></a> +<span class="sourceLineNo">248</span> Thread.currentThread().interrupt();<a name="line.248"></a> +<span class="sourceLineNo">249</span> }<a name="line.249"></a> +<span class="sourceLineNo">250</span> try {<a name="line.250"></a> +<span class="sourceLineNo">251</span> return loadTask.get(5, TimeUnit.SECONDS);<a name="line.251"></a> +<span class="sourceLineNo">252</span> } catch (InterruptedException e) {<a name="line.252"></a> +<span class="sourceLineNo">253</span> LOG.warn("Interrupted while loading Regions on " + this.hostname, e);<a name="line.253"></a> +<span class="sourceLineNo">254</span> throw e;<a name="line.254"></a> +<span class="sourceLineNo">255</span> } catch (ExecutionException e) {<a name="line.255"></a> +<span class="sourceLineNo">256</span> LOG.error("Error while loading regions on RegionServer " + this.hostname, e);<a name="line.256"></a> +<span class="sourceLineNo">257</span> throw e;<a name="line.257"></a> +<span class="sourceLineNo">258</span> }<a name="line.258"></a> +<span class="sourceLineNo">259</span> }<a name="line.259"></a> +<span class="sourceLineNo">260</span><a name="line.260"></a> +<span class="sourceLineNo">261</span> private class Load implements Callable<Boolean> {<a name="line.261"></a> +<span class="sourceLineNo">262</span><a name="line.262"></a> +<span class="sourceLineNo">263</span> private RegionMover rm;<a name="line.263"></a> +<span class="sourceLineNo">264</span><a name="line.264"></a> +<span class="sourceLineNo">265</span> public Load(RegionMover rm) {<a name="line.265"></a> +<span class="sourceLineNo">266</span> this.rm = rm;<a name="line.266"></a> +<span class="sourceLineNo">267</span> }<a name="line.267"></a> +<span class="sourceLineNo">268</span><a name="line.268"></a> +<span class="sourceLineNo">269</span> @Override<a name="line.269"></a> +<span class="sourceLineNo">270</span> public Boolean call() throws IOException {<a name="line.270"></a> +<span class="sourceLineNo">271</span> Connection conn = ConnectionFactory.createConnection(rm.conf);<a name="line.271"></a> +<span class="sourceLineNo">272</span> try {<a name="line.272"></a> +<span class="sourceLineNo">273</span> List<RegionInfo> regionsToMove = readRegionsFromFile(rm.filename);<a name="line.273"></a> +<span class="sourceLineNo">274</span> if (regionsToMove.isEmpty()) {<a name="line.274"></a> +<span class="sourceLineNo">275</span> LOG.info("No regions to load.Exiting");<a name="line.275"></a> +<span class="sourceLineNo">276</span> return true;<a name="line.276"></a> +<span class="sourceLineNo">277</span> }<a name="line.277"></a> +<span class="sourceLineNo">278</span> Admin admin = conn.getAdmin();<a name="line.278"></a> +<span class="sourceLineNo">279</span> try {<a name="line.279"></a> +<span class="sourceLineNo">280</span> loadRegions(admin, rm.hostname, rm.port, regionsToMove, rm.ack);<a name="line.280"></a> +<span class="sourceLineNo">281</span> } finally {<a name="line.281"></a> +<span class="sourceLineNo">282</span> admin.close();<a name="line.282"></a> +<span class="sourceLineNo">283</span> }<a name="line.283"></a> +<span class="sourceLineNo">284</span> } catch (Exception e) {<a name="line.284"></a> +<span class="sourceLineNo">285</span> LOG.error("Error while loading regions to " + rm.hostname, e);<a name="line.285"></a> +<span class="sourceLineNo">286</span> return false;<a name="line.286"></a> +<span class="sourceLineNo">287</span> } finally {<a name="line.287"></a> +<span class="sourceLineNo">288</span> conn.close();<a name="line.288"></a> 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Timeout:" + this.timeout<a name="line.311"></a> +<span class="sourceLineNo">312</span> + "sec");<a name="line.312"></a> +<span class="sourceLineNo">313</span> unloadPool.shutdownNow();<a name="line.313"></a> +<span class="sourceLineNo">314</span> }<a name="line.314"></a> +<span class="sourceLineNo">315</span> } catch (InterruptedException e) {<a name="line.315"></a> +<span class="sourceLineNo">316</span> unloadPool.shutdownNow();<a name="line.316"></a> +<span class="sourceLineNo">317</span> Thread.currentThread().interrupt();<a name="line.317"></a> +<span class="sourceLineNo">318</span> }<a name="line.318"></a> +<span class="sourceLineNo">319</span> try {<a name="line.319"></a> +<span class="sourceLineNo">320</span> return unloadTask.get(5, TimeUnit.SECONDS);<a name="line.320"></a> +<span class="sourceLineNo">321</span> } catch (InterruptedException e) {<a name="line.321"></a> +<span class="sourceLineNo">322</span> LOG.warn("Interrupted while unloading Regions from " + this.hostname, e);<a name="line.322"></a> +<span class="sourceLineNo">323</span> throw e;<a name="line.323"></a> +<span class="sourceLineNo">324</span> } catch (ExecutionException e) {<a name="line.324"></a> +<span class="sourceLineNo">325</span> LOG.error("Error while unloading regions from RegionServer " + this.hostname, e);<a name="line.325"></a> +<span class="sourceLineNo">326</span> throw e;<a name="line.326"></a> +<span class="sourceLineNo">327</span> }<a name="line.327"></a> +<span class="sourceLineNo">328</span> }<a name="line.328"></a> +<span class="sourceLineNo">329</span><a name="line.329"></a> +<span class="sourceLineNo">330</span> private class Unload implements Callable<Boolean> {<a name="line.330"></a> +<span class="sourceLineNo">331</span><a name="line.331"></a> +<span class="sourceLineNo">332</span> List<RegionInfo> movedRegions = Collections.synchronizedList(new ArrayList<RegionInfo>());<a name="line.332"></a> +<span class="sourceLineNo">333</span> private RegionMover rm;<a name="line.333"></a> +<span class="sourceLineNo">334</span><a name="line.334"></a> +<span class="sourceLineNo">335</span> public Unload(RegionMover rm) {<a name="line.335"></a> +<span class="sourceLineNo">336</span> this.rm = rm;<a name="line.336"></a> +<span class="sourceLineNo">337</span> }<a name="line.337"></a> +<span class="sourceLineNo">338</span><a name="line.338"></a> +<span class="sourceLineNo">339</span> @Override<a name="line.339"></a> +<span class="sourceLineNo">340</span> public Boolean call() throws IOException {<a name="line.340"></a> +<span class="sourceLineNo">341</span> Connection conn = ConnectionFactory.createConnection(rm.conf);<a name="line.341"></a> +<span class="sourceLineNo">342</span> try {<a name="line.342"></a> +<span class="sourceLineNo">343</span> Admin admin = conn.getAdmin();<a name="line.343"></a> +<span class="sourceLineNo">344</span> // Get Online RegionServers<a name="line.344"></a> +<span class="sourceLineNo">345</span> ArrayList<String> regionServers = getServers(admin);<a name="line.345"></a> +<span class="sourceLineNo">346</span> if (LOG.isDebugEnabled()) {<a name="line.346"></a> +<span class="sourceLineNo">347</span> LOG.debug("Online region servers:" + regionServers.toString());<a name="line.347"></a> +<span class="sourceLineNo">348</span> }<a name="line.348"></a> +<span class="sourceLineNo">349</span> // Remove the host Region server from target Region Servers list<a name="line.349"></a> +<span class="sourceLineNo">350</span> String server = stripServer(regionServers, hostname, port);<a name="line.350"></a> +<span class="sourceLineNo">351</span> // Remove RS present in the exclude file<a name="line.351"></a> +<span class="sourceLineNo">352</span> stripExcludes(regionServers, rm.excludeFile);<a name="line.352"></a> +<span class="sourceLineNo">353</span> stripMaster(regionServers, admin);<a name="line.353"></a> +<span class="sourceLineNo">354</span> unloadRegions(admin, server, regionServers, rm.ack, movedRegions);<a name="line.354"></a> +<span class="sourceLineNo">355</span> } catch (Exception e) {<a name="line.355"></a> +<span class="sourceLineNo">356</span> LOG.error("Error while unloading regions ", e);<a name="line.356"></a> +<span class="sourceLineNo">357</span> return false;<a name="line.357"></a> +<span class="sourceLineNo">358</span> } finally {<a name="line.358"></a> +<span class="sourceLineNo">359</span> try {<a name="line.359"></a> +<span class="sourceLineNo">360</span> conn.close();<a name="line.360"></a> +<span class="sourceLineNo">361</span> } catch (IOException e) {<a name="line.361"></a> +<span class="sourceLineNo">362</span> // ignore<a name="line.362"></a> +<span class="sourceLineNo">363</span> }<a name="line.363"></a> +<span class="sourceLineNo">364</span> if (movedRegions != null) {<a name="line.364"></a> +<span class="sourceLineNo">365</span> writeFile(rm.filename, movedRegions);<a name="line.365"></a> +<span class="sourceLineNo">366</span> }<a 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admin.getConfiguration().getInt(SERVERSTART_WAIT_MAX_KEY, DEFAULT_SERVERSTART_WAIT_MAX);<a name="line.377"></a> +<span class="sourceLineNo">378</span> long maxWait = EnvironmentEdgeManager.currentTime() + maxWaitInSeconds * 1000;<a name="line.378"></a> +<span class="sourceLineNo">379</span> while ((EnvironmentEdgeManager.currentTime() < maxWait) && (server == null)) {<a name="line.379"></a> +<span class="sourceLineNo">380</span> try {<a name="line.380"></a> +<span class="sourceLineNo">381</span> ArrayList<String> regionServers = getServers(admin);<a name="line.381"></a> +<span class="sourceLineNo">382</span> // Remove the host Region server from target Region Servers list<a name="line.382"></a> +<span class="sourceLineNo">383</span> server = stripServer(regionServers, hostname, port);<a name="line.383"></a> +<span class="sourceLineNo">384</span> if (server != null) {<a name="line.384"></a> +<span class="sourceLineNo">385</span> break;<a name="line.385"></a> +<span 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class="sourceLineNo">417</span> if (ack) {<a name="line.417"></a> -<span class="sourceLineNo">418</span> Future<Boolean> task =<a name="line.418"></a> -<span class="sourceLineNo">419</span> moveRegionsPool.submit(new MoveWithAck(admin, region, currentServer, server,<a name="line.419"></a> -<span class="sourceLineNo">420</span> movedRegions));<a name="line.420"></a> -<span class="sourceLineNo">421</span> taskList.add(task);<a name="line.421"></a> -<span class="sourceLineNo">422</span> } else {<a name="line.422"></a> -<span class="sourceLineNo">423</span> Future<Boolean> task =<a name="line.423"></a> -<span class="sourceLineNo">424</span> moveRegionsPool.submit(new MoveWithoutAck(admin, region, currentServer, server,<a name="line.424"></a> -<span class="sourceLineNo">425</span> movedRegions));<a name="line.425"></a> -<span class="sourceLineNo">426</span> taskList.add(task);<a name="line.426"></a> -<span class="sourceLineNo">427</span> }<a name="line.427"></a> -<span 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catch (InterruptedException e) {<a name="line.449"></a> -<span class="sourceLineNo">450</span> LOG.error("Interrupted while waiting for Thread to Complete " + e.getMessage(), e);<a name="line.450"></a> -<span class="sourceLineNo">451</span> throw e;<a name="line.451"></a> -<span class="sourceLineNo">452</span> } catch (ExecutionException e) {<a name="line.452"></a> -<span class="sourceLineNo">453</span> LOG.error("Got Exception From Thread While moving region " + e.getMessage(), e);<a name="line.453"></a> -<span class="sourceLineNo">454</span> throw e;<a name="line.454"></a> -<span class="sourceLineNo">455</span> } catch (CancellationException e) {<a name="line.455"></a> -<span class="sourceLineNo">456</span> LOG.error("Thread for moving region cancelled. Timeout for cancellation:"<a name="line.456"></a> -<span class="sourceLineNo">457</span> + timeoutInSeconds + "secs", e);<a name="line.457"></a> +<span class="sourceLineNo">399</span> if (server == null) {<a name="line.399"></a> +<span class="sourceLineNo">400</span> LOG.error("Host:" + hostname + " is not up.Giving up.");<a name="line.400"></a> +<span class="sourceLineNo">401</span> throw new Exception("Host to load regions not online");<a name="line.401"></a> +<span class="sourceLineNo">402</span> }<a name="line.402"></a> +<span class="sourceLineNo">403</span> LOG.info("Moving " + regionsToMove.size() + " regions to " + server + " using "<a name="line.403"></a> +<span class="sourceLineNo">404</span> + this.maxthreads + " threads.Ack mode:" + this.ack);<a name="line.404"></a> +<span class="sourceLineNo">405</span> ExecutorService moveRegionsPool = Executors.newFixedThreadPool(this.maxthreads);<a name="line.405"></a> +<span class="sourceLineNo">406</span> List<Future<Boolean>> taskList = new ArrayList<>();<a name="line.406"></a> +<span class="sourceLineNo">407</span> int counter = 0;<a name="line.407"></a> +<span class="sourceLineNo">408</span> while (counter < regionsToMove.size()) {<a name="line.408"></a> +<span class="sourceLineNo">409</span> RegionInfo region = regionsToMove.get(counter);<a name="line.409"></a> +<span class="sourceLineNo">410</span> String currentServer = getServerNameForRegion(admin, region);<a name="line.410"></a> +<span class="sourceLineNo">411</span> if (currentServer == null) {<a name="line.411"></a> +<span class="sourceLineNo">412</span> LOG.warn("Could not get server for Region:" + region.getEncodedName() + " moving on");<a name="line.412"></a> +<span class="sourceLineNo">413</span> counter++;<a name="line.413"></a> +<span class="sourceLineNo">414</span> continue;<a name="line.414"></a> +<span class="sourceLineNo">415</span> } else if (server.equals(currentServer)) {<a name="line.415"></a> +<span class="sourceLineNo">416</span> 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class="sourceLineNo">439</span> if (!moveRegionsPool.awaitTermination(timeoutInSeconds, TimeUnit.SECONDS)) {<a name="line.439"></a> +<span class="sourceLineNo">440</span> moveRegionsPool.shutdownNow();<a name="line.440"></a> +<span class="sourceLineNo">441</span> }<a name="line.441"></a> +<span class="sourceLineNo">442</span> } catch (InterruptedException e) {<a name="line.442"></a> +<span class="sourceLineNo">443</span> moveRegionsPool.shutdownNow();<a name="line.443"></a> +<span class="sourceLineNo">444</span> Thread.currentThread().interrupt();<a name="line.444"></a> +<span class="sourceLineNo">445</span> }<a name="line.445"></a> +<span class="sourceLineNo">446</span> for (Future<Boolean> future : taskList) {<a name="line.446"></a> +<span class="sourceLineNo">447</span> try {<a name="line.447"></a> +<span class="sourceLineNo">448</span> // if even after shutdownNow threads are stuck we wait for 5 secs max<a name="line.448"></a> +<span class="sourceLineNo">449</span> if 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class="sourceLineNo">459</span> }<a name="line.459"></a> -<span class="sourceLineNo">460</span> }<a name="line.460"></a> -<span class="sourceLineNo">461</span> }<a name="line.461"></a> -<span class="sourceLineNo">462</span><a name="line.462"></a> -<span class="sourceLineNo">463</span> @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="DLS_DEAD_LOCAL_STORE",<a name="line.463"></a> -<span class="sourceLineNo">464</span> justification="FB is wrong; its size is read")<a name="line.464"></a> -<span class="sourceLineNo">465</span> private void unloadRegions(Admin admin, String server, ArrayList<String> regionServers,<a name="line.465"></a> -<span class="sourceLineNo">466</span> boolean ack, List<RegionInfo> movedRegions) throws Exception {<a name="line.466"></a> -<span class="sourceLineNo">467</span> List<RegionInfo> regionsToMove = new ArrayList<>();// FindBugs: DLS_DEAD_LOCAL_STORE<a name="line.467"></a> -<span class="sourceLineNo">468</span> regionsToMove = getRegions(this.conf, server);<a name="line.468"></a> -<span class="sourceLineNo">469</span> if (regionsToMove.isEmpty()) {<a name="line.469"></a> -<span class="sourceLineNo">470</span> LOG.info("No Regions to move....Quitting now");<a name="line.470"></a> -<span class="sourceLineNo">471</span> return;<a name="line.471"></a> -<span class="sourceLineNo">472</span> } else if (regionServers.isEmpty()) {<a name="line.472"></a> -<span class="sourceLineNo">473</span> LOG.warn("No Regions were moved - no servers available");<a name="line.473"></a> -<span class="sourceLineNo">474</span> throw new Exception("No online region servers");<a name="line.474"></a> -<span class="sourceLineNo">475</span> }<a name="line.475"></a> -<span class="sourceLineNo">476</span> while (true) {<a name="line.476"></a> -<span class="sourceLineNo">477</span> regionsToMove = getRegions(this.conf, server);<a name="line.477"></a> -<span class="sourceLineNo">478</span> regionsToMove.removeAll(movedRegions);<a name="line.478"></a> -<span class="sourceLineNo">479</span> if (regionsToMove.isEmpty()) {<a name="line.479"></a> -<span class="sourceLineNo">480</span> break;<a name="line.480"></a> -<span class="sourceLineNo">481</span> }<a name="line.481"></a> -<span class="sourceLineNo">482</span> int counter = 0;<a name="line.482"></a> -<span class="sourceLineNo">483</span> LOG.info("Moving " + regionsToMove.size() + " regions from " + this.hostname + " to "<a name="line.483"></a> -<span class="sourceLineNo">484</span> + regionServers.size() + " servers using " + this.maxthreads + " threads .Ack Mode:"<a name="line.484"></a> -<span class="sourceLineNo">485</span> + ack);<a name="line.485"></a> -<span class="sourceLineNo">486</span> ExecutorService moveRegionsPool = Executors.newFixedThreadPool(this.maxthreads);<a name="line.486"></a> -<span class="sourceLineNo">487</span> List<Future<Boolean>> taskList = new ArrayList<>();<a name="line.487"></a> -<span class="sourceLineNo">488</span> int serverIndex = 0;<a 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movedRegions));<a name="line.498"></a> -<span class="sourceLineNo">499</span> taskList.add(task);<a name="line.499"></a> -<span class="sourceLineNo">500</span> }<a name="line.500"></a> -<span class="sourceLineNo">501</span> counter++;<a name="line.501"></a> -<span class="sourceLineNo">502</span> serverIndex = (serverIndex + 1) % regionServers.size();<a name="line.502"></a> -<span class="sourceLineNo">503</span> }<a name="line.503"></a> -<span class="sourceLineNo">504</span> moveRegionsPool.shutdown();<a name="line.504"></a> -<span class="sourceLineNo">505</span> long timeoutInSeconds =<a name="line.505"></a> -<span class="sourceLineNo">506</span> regionsToMove.size()<a name="line.506"></a> -<span class="sourceLineNo">507</span> * admin.getConfiguration().getLong(MOVE_WAIT_MAX_KEY, DEFAULT_MOVE_WAIT_MAX);<a name="line.507"></a> -<span class="sourceLineNo">508</span> try {<a name="line.508"></a> -<span class="sourceLineNo">509</span> if 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name="line.519"></a> -<span class="sourceLineNo">520</span> LOG.error("Was Not able to move region....Exiting Now");<a name="line.520"></a> -<span class="sourceLineNo">521</span> throw new Exception("Could not move region Exception");<a name="line.521"></a> -<span class="sourceLineNo">522</span> }<a name="line.522"></a> -<span class="sourceLineNo">523</span> } catch (InterruptedException e) {<a name="line.523"></a> -<span class="sourceLineNo">524</span> LOG.error("Interrupted while waiting for Thread to Complete " + e.getMessage(), e);<a name="line.524"></a> -<span class="sourceLineNo">525</span> throw e;<a name="line.525"></a> -<span class="sourceLineNo">526</span> } catch (ExecutionException e) {<a name="line.526"></a> -<span class="sourceLineNo">527</span> LOG.error("Got Exception From Thread While moving region " + e.getMessage(), e);<a name="line.527"></a> -<span class="sourceLineNo">528</span> throw e;<a name="line.528"></a> -<span class="sourceLineNo">529</span> } catch (CancellationException e) {<a name="line.529"></a> -<span class="sourceLineNo">530</span> LOG.error("Thread for moving region cancelled. Timeout for cancellation:"<a name="line.530"></a> -<span class="sourceLineNo">531</span> + timeoutInSeconds + "secs", e);<a name="line.531"></a> +<span class="sourceLineNo">459</span> } catch (CancellationException e) {<a name="line.459"></a> +<span class="sourceLineNo">460</span> LOG.error("Thread for moving region cancelled. Timeout for cancellation:"<a name="line.460"></a> +<span class="sourceLineNo">461</span> + timeoutInSeconds + "secs", e);<a name="line.461"></a> +<span class="sourceLineNo">462</span> throw e;<a name="line.462"></a> +<span class="sourceLineNo">463</span> }<a name="line.463"></a> +<span class="sourceLineNo">464</span> }<a name="line.464"></a> +<span class="sourceLineNo">465</span> }<a name="line.465"></a> +<span class="sourceLineNo">466</span><a name="line.466"></a> +<span class="sourceLineNo">467</span> @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="DLS_DEAD_LOCAL_STORE",<a name="line.467"></a> +<span class="sourceLineNo">468</span> justification="FB is wrong; its size is read")<a name="line.468"></a> +<span class="sourceLineNo">469</span> private void unloadRegions(Admin admin, String server, ArrayList<String> regionServers,<a name="line.469"></a> +<span class="sourceLineNo">470</span> boolean ack, List<RegionInfo> movedRegions) throws Exception {<a name="line.470"></a> +<span class="sourceLineNo">471</span> List<RegionInfo> regionsToMove = new ArrayList<>();// FindBugs: DLS_DEAD_LOCAL_STORE<a name="line.471"></a> +<span class="sourceLineNo">472</span> regionsToMove = getRegions(this.conf, server);<a name="line.472"></a> +<span class="sourceLineNo">473</span> if (regionsToMove.isEmpty()) {<a name="line.473"></a> +<span class="sourceLineNo">474</span> LOG.info("No Regions to move....Quitting now");<a name="line.474"></a> +<span class="sourceLineNo">475</span> return;<a name="line.475"></a> +<span class="sourceLineNo">476</span> } else if (regionServers.isEmpty()) {<a name="line.476"></a> +<span class="sourceLineNo">477</span> LOG.warn("No Regions were moved - no servers available");<a name="line.477"></a> +<span class="sourceLineNo">478</span> throw new Exception("No online region servers");<a name="line.478"></a> +<span class="sourceLineNo">479</span> }<a name="line.479"></a> +<span class="sourceLineNo">480</span> while (true) {<a name="line.480"></a> +<span class="sourceLineNo">481</span> regionsToMove = getRegions(this.conf, server);<a name="line.481"></a> +<span class="sourceLineNo">482</span> regionsToMove.removeAll(movedRegions);<a name="line.482"></a> +<span class="sourceLineNo">483</span> if (regionsToMove.isEmpty()) {<a name="line.483"></a> +<span class="sourceLineNo">484</span> break;<a name="line.484"></a> +<span class="sourceLineNo">485</span> }<a name="line.485"></a> +<span class="sourceLineNo">486</span> int counter = 0;<a name="line.486"></a> +<span class="sourceLineNo">487</span> LOG.info("Moving " + regionsToMove.size() + " regions from " + this.hostname + " to "<a name="line.487"></a> +<span class="sourceLineNo">488</span> + regionServers.size() + " servers using " + this.maxthreads + " threads .Ack Mode:"<a name="line.488"></a> +<span class="sourceLineNo">489</span> + ack);<a name="line.489"></a> +<span class="sourceLineNo">490</span> ExecutorService moveRegionsPool = Executors.newFixedThreadPool(this.maxthreads);<a name="line.490"></a> +<span class="sourceLineNo">491</span> List<Future<Boolean>> taskList = new ArrayList<>();<a name="line.491"></a> +<span class="sourceLineNo">492</span> int serverIndex = 0;<a name="line.492"></a> +<span class="sourceLineNo">493</span> while (counter < regionsToMove.size()) {<a name="line.493"></a> +<span class="sourceLineNo">494</span> if (ack) {<a name="line.494"></a> +<span class="sourceLineNo">495</span> Future<Boolean> task =<a name="line.495"></a> +<span class="sourceLineNo">496</span> moveRegionsPool.submit(new MoveWithAck(admin, regionsToMove.get(counter), server,<a name="line.496"></a> +<span class="sourceLineNo">497</span> regionServers.get(serverIndex), movedRegions));<a name="line.497"></a> +<span class="sourceLineNo">498</span> taskList.add(task);<a name="line.498"></a> +<span class="sourceLineNo">499</span> } else {<a name="line.499"></a> +<span class="sourceLineNo">500</span> Future<Boolean> task =<a name="line.500"></a> +<sp
<TRUNCATED>
