[11/30] hbase-site git commit: Published site at .

[git-site-role]

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/e80e3339/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/ZKWatcher.html
----------------------------------------------------------------------
diff --git 
a/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/ZKWatcher.html 
b/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/ZKWatcher.html
index 0ded2a2..6eadb58 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/ZKWatcher.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/zookeeper/ZKWatcher.html
@@ -167,481 +167,464 @@
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 <span class="sourceLineNo">160</span>  }<a name="line.160"></a>
 <span class="sourceLineNo">161</span><a name="line.161"></a>
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supposed to be readable by the client<a name="line.162"></a>
-<span class="sourceLineNo">163</span>   * and DOES NOT contain sensitive 
information (world readable).*/<a name="line.163"></a>
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node) {<a name="line.164"></a>
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world readable. DO NOT add more znodes here UNLESS<a name="line.165"></a>
-<span class="sourceLineNo">166</span>    // all clients need to access this 
data to work. Using zk for sharing data to clients (other<a name="line.166"></a>
-<span class="sourceLineNo">167</span>    // than service lookup case is not a 
recommended design pattern.<a name="line.167"></a>
-<span class="sourceLineNo">168</span>    return<a name="line.168"></a>
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||<a name="line.169"></a>
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znodePaths.isAnyMetaReplicaZNode(node) ||<a name="line.170"></a>
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node.equals(znodePaths.masterAddressZNode) ||<a name="line.171"></a>
-<span class="sourceLineNo">172</span>        
node.equals(znodePaths.clusterIdZNode)||<a name="line.172"></a>
-<span class="sourceLineNo">173</span>        node.equals(znodePaths.rsZNode) 
||<a name="line.173"></a>
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/hbase/table/foo is allowed, /hbase/table-lock is not<a name="line.174"></a>
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node.equals(znodePaths.tableZNode) ||<a name="line.175"></a>
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node.startsWith(znodePaths.tableZNode + "/");<a name="line.176"></a>
-<span class="sourceLineNo">177</span>  }<a name="line.177"></a>
+<span class="sourceLineNo">162</span>  /**<a name="line.162"></a>
+<span class="sourceLineNo">163</span>   * On master start, we check the znode 
ACLs under the root directory and set the ACLs properly<a name="line.163"></a>
+<span class="sourceLineNo">164</span>   * if needed. If the cluster goes from 
an unsecure setup to a secure setup, this step is needed<a name="line.164"></a>
+<span class="sourceLineNo">165</span>   * so that the existing znodes created 
with open permissions are now changed with restrictive<a name="line.165"></a>
+<span class="sourceLineNo">166</span>   * perms.<a name="line.166"></a>
+<span class="sourceLineNo">167</span>   */<a name="line.167"></a>
+<span class="sourceLineNo">168</span>  public void checkAndSetZNodeAcls() {<a 
name="line.168"></a>
+<span class="sourceLineNo">169</span>    if 
(!ZKUtil.isSecureZooKeeper(getConfiguration())) {<a name="line.169"></a>
+<span class="sourceLineNo">170</span>      LOG.info("not a secure deployment, 
proceeding");<a name="line.170"></a>
+<span class="sourceLineNo">171</span>      return;<a name="line.171"></a>
+<span class="sourceLineNo">172</span>    }<a name="line.172"></a>
+<span class="sourceLineNo">173</span><a name="line.173"></a>
+<span class="sourceLineNo">174</span>    // Check the base znodes permission 
first. Only do the recursion if base znode's perms are not<a 
name="line.174"></a>
+<span class="sourceLineNo">175</span>    // correct.<a name="line.175"></a>
+<span class="sourceLineNo">176</span>    try {<a name="line.176"></a>
+<span class="sourceLineNo">177</span>      List&lt;ACL&gt; actualAcls = 
recoverableZooKeeper.getAcl(znodePaths.baseZNode, new Stat());<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>
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ACLs under the root directory and set the ACLs properly<a name="line.180"></a>
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(!ZKUtil.isSecureZooKeeper(getConfiguration())) {<a name="line.186"></a>
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proceeding");<a name="line.187"></a>
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+<span class="sourceLineNo">179</span>      if 
(!isBaseZnodeAclSetup(actualAcls)) {<a name="line.179"></a>
+<span class="sourceLineNo">180</span>        LOG.info("setting znode ACLs");<a 
name="line.180"></a>
+<span class="sourceLineNo">181</span>        
setZnodeAclsRecursive(znodePaths.baseZNode);<a name="line.181"></a>
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+<span class="sourceLineNo">183</span>    } 
catch(KeeperException.NoNodeException nne) {<a name="line.183"></a>
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+<span class="sourceLineNo">185</span>    } catch(InterruptedException ie) {<a 
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false);<a name="line.186"></a>
+<span class="sourceLineNo">187</span>    } catch (IOException|KeeperException 
e) {<a name="line.187"></a>
+<span class="sourceLineNo">188</span>      LOG.warn("Received exception while 
checking and setting zookeeper ACLs", e);<a name="line.188"></a>
 <span class="sourceLineNo">189</span>    }<a name="line.189"></a>
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first. Only do the recursion if base znode's perms are not<a 
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recoverableZooKeeper.getAcl(znodePaths.baseZNode, new Stat());<a 
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(!isBaseZnodeAclSetup(actualAcls)) {<a name="line.196"></a>
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name="line.197"></a>
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setZnodeAclsRecursive(znodePaths.baseZNode);<a name="line.198"></a>
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catch(KeeperException.NoNodeException nne) {<a name="line.200"></a>
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e) {<a name="line.204"></a>
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checking and setting zookeeper ACLs", e);<a name="line.205"></a>
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-<span class="sourceLineNo">209</span>  /**<a name="line.209"></a>
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This will do post-order recursion, so that baseZnode ACLs<a name="line.210"></a>
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fails in between.<a name="line.211"></a>
-<span class="sourceLineNo">212</span>   * @param znode the ZNode to set the 
permissions for<a name="line.212"></a>
+<span class="sourceLineNo">190</span>  }<a name="line.190"></a>
+<span class="sourceLineNo">191</span><a name="line.191"></a>
+<span class="sourceLineNo">192</span>  /**<a name="line.192"></a>
+<span class="sourceLineNo">193</span>   * Set the znode perms recursively. 
This will do post-order recursion, so that baseZnode ACLs<a name="line.193"></a>
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fails in between.<a name="line.194"></a>
+<span class="sourceLineNo">195</span>   * @param znode the ZNode to set the 
permissions for<a name="line.195"></a>
+<span class="sourceLineNo">196</span>   */<a name="line.196"></a>
+<span class="sourceLineNo">197</span>  private void 
setZnodeAclsRecursive(String znode) throws KeeperException, 
InterruptedException {<a name="line.197"></a>
+<span class="sourceLineNo">198</span>    List&lt;String&gt; children = 
recoverableZooKeeper.getChildren(znode, false);<a name="line.198"></a>
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setZnodeAclsRecursive(ZNodePaths.joinZNode(znode, child));<a 
name="line.201"></a>
+<span class="sourceLineNo">202</span>    }<a name="line.202"></a>
+<span class="sourceLineNo">203</span>    List&lt;ACL&gt; acls = 
ZKUtil.createACL(this, znode, true);<a name="line.203"></a>
+<span class="sourceLineNo">204</span>    LOG.info("Setting ACLs for znode:" + 
znode + " , acl:" + acls);<a name="line.204"></a>
+<span class="sourceLineNo">205</span>    recoverableZooKeeper.setAcl(znode, 
acls, -1);<a name="line.205"></a>
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+<span class="sourceLineNo">207</span><a name="line.207"></a>
+<span class="sourceLineNo">208</span>  /**<a name="line.208"></a>
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from the base znode (/hbase) is set for secure setup.<a name="line.209"></a>
+<span class="sourceLineNo">210</span>   * @param acls acls from zookeeper<a 
name="line.210"></a>
+<span class="sourceLineNo">211</span>   * @return whether ACLs are set for the 
base znode<a name="line.211"></a>
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current user fails<a name="line.212"></a>
 <span class="sourceLineNo">213</span>   */<a name="line.213"></a>
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setZnodeAclsRecursive(String znode) throws KeeperException, 
InterruptedException {<a name="line.214"></a>
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recoverableZooKeeper.getChildren(znode, false);<a name="line.215"></a>
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setZnodeAclsRecursive(ZNodePaths.joinZNode(znode, child));<a 
name="line.218"></a>
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-<span class="sourceLineNo">220</span>    List&lt;ACL&gt; acls = 
ZKUtil.createACL(this, znode, true);<a name="line.220"></a>
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znode + " , acl:" + acls);<a name="line.221"></a>
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acls, -1);<a name="line.222"></a>
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name="line.227"></a>
-<span class="sourceLineNo">228</span>   * @return whether ACLs are set for the 
base znode<a name="line.228"></a>
-<span class="sourceLineNo">229</span>   * @throws IOException if getting the 
current user fails<a name="line.229"></a>
-<span class="sourceLineNo">230</span>   */<a name="line.230"></a>
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isBaseZnodeAclSetup(List&lt;ACL&gt; acls) throws IOException {<a 
name="line.231"></a>
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name="line.232"></a>
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name="line.233"></a>
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conf.getStrings(Superusers.SUPERUSER_CONF_KEY);<a name="line.235"></a>
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superusers<a name="line.236"></a>
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!checkACLForSuperUsers(superUsers, acls)) {<a name="line.237"></a>
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authenticated user is the same as zookeeper client user<a name="line.241"></a>
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name="line.242"></a>
-<span class="sourceLineNo">243</span>    String hbaseUser = 
UserGroupInformation.getCurrentUser().getShortUserName();<a name="line.243"></a>
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name="line.246"></a>
-<span class="sourceLineNo">247</span>        LOG.debug("ACL is empty");<a 
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name="line.253"></a>
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LOG.debug(String.format("permissions for '%s' are not correct: have 0x%x, want 
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LOG.debug(String.format("permissions for '%s' are not correct: have 0x%x, want 
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conf.getStrings(Superusers.SUPERUSER_CONF_KEY);<a name="line.218"></a>
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superusers<a name="line.219"></a>
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!checkACLForSuperUsers(superUsers, acls)) {<a name="line.220"></a>
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(Ids.ANYONE_ID_UNSAFE.equals(id)) {<a name="line.240"></a>
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name="line.241"></a>
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LOG.debug(String.format("permissions for '%s' are not correct: have 0x%x, want 
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LOG.debug(String.format("permissions for '%s' are not correct: have 0x%x, want 
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("sasl".equals(id.getScheme())) {<a name="line.256"></a>
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Kerberos full name in the ACL, use only the shortname<a name="line.258"></a>
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NAME_PATTERN.matcher(name);<a name="line.259"></a>
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