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<div class="subTitle">org.apache.hadoop.hbase.procedure</div>
<h2 title="Class ZKProcedureUtil" class="title">Class ZKProcedureUtil</h2>
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<ul class="inheritance">
<li><a href="../../../../../org/apache/hadoop/hbase/zookeeper/ZKListener.html" title="class in org.apache.hadoop.hbase.zookeeper">org.apache.hadoop.hbase.zookeeper.ZKListener</a></li>
<li>
<ul class="inheritance">
<li>org.apache.hadoop.hbase.procedure.ZKProcedureUtil</li>
</ul>
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<div class="description">
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<dl>
<dt>All Implemented Interfaces:</dt>
<dd><a href="https://docs.oracle.com/javase/8/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AutoCloseable.html?is-external=true" title="class or interface in java.lang">AutoCloseable</a></dd>
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<pre>@InterfaceAudience.Private
public abstract class <a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#line.52">ZKProcedureUtil</a>
extends <a href="../../../../../org/apache/hadoop/hbase/zookeeper/ZKListener.html" title="class in org.apache.hadoop.hbase.zookeeper">ZKListener</a>
implements <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Closeable.html?is-external=true" title="class or interface in java.io">Closeable</a></pre>
<div class="block">This is a shared ZooKeeper-based znode management utils for distributed procedure. All znode
operations should go through the provided methods in coordinators and members.
Layout of nodes in ZK is
/hbase/[op name]/acquired/
[op instance] - op data/
/[nodes that have acquired]
/reached/
[op instance]/
/[nodes that have completed]
/abort/
[op instance] - failure data
NOTE: while acquired and completed are znode dirs, abort is actually just a znode.
Assumption here that procedure names are unique</div>
</li>
</ul>
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<li class="blockList">
<!-- =========== FIELD SUMMARY =========== -->
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<h3>Field Summary</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation">
<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#ABORT_ZNODE_DEFAULT">ABORT_ZNODE_DEFAULT</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#abortZnode">abortZnode</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#ACQUIRED_BARRIER_ZNODE_DEFAULT">ACQUIRED_BARRIER_ZNODE_DEFAULT</a></span></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#acquiredZnode">acquiredZnode</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#baseZNode">baseZNode</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>private static org.slf4j.Logger</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#LOG">LOG</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#REACHED_BARRIER_ZNODE_DEFAULT">REACHED_BARRIER_ZNODE_DEFAULT</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#reachedZnode">reachedZnode</a></span></code>&nbsp;</td>
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<h3>Fields inherited from class&nbsp;org.apache.hadoop.hbase.zookeeper.<a href="../../../../../org/apache/hadoop/hbase/zookeeper/ZKListener.html" title="class in org.apache.hadoop.hbase.zookeeper">ZKListener</a></h3>
<code><a href="../../../../../org/apache/hadoop/hbase/zookeeper/ZKListener.html#watcher">watcher</a></code></li>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#ZKProcedureUtil-org.apache.hadoop.hbase.zookeeper.ZKWatcher-java.lang.String-">ZKProcedureUtil</a></span>(<a href="../../../../../org/apache/hadoop/hbase/zookeeper/ZKWatcher.html" title="class in org.apache.hadoop.hbase.zookeeper">ZKWatcher</a>&nbsp;watcher,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;procDescription)</code>
<div class="block">Top-level watcher/controller for procedures across the cluster.</div>
</td>
</tr>
</table>
</li>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#clearChildZNodes--">clearChildZNodes</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#clearZNodes-java.lang.String-">clearZNodes</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;procedureName)</code>&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#close--">close</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#getAbortNode-org.apache.hadoop.hbase.procedure.ZKProcedureUtil-java.lang.String-">getAbortNode</a></span>(<a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html" title="class in org.apache.hadoop.hbase.procedure">ZKProcedureUtil</a>&nbsp;controller,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;opInstanceName)</code>
<div class="block">Get the full znode path for the node used by the coordinator or member to trigger an abort
of the global barrier acquisition or execution in subprocedures.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#getAbortZnode--">getAbortZnode</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#getAbortZNode-java.lang.String-">getAbortZNode</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;opInstanceName)</code>&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#getAcquireBarrierNode-org.apache.hadoop.hbase.procedure.ZKProcedureUtil-java.lang.String-">getAcquireBarrierNode</a></span>(<a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html" title="class in org.apache.hadoop.hbase.procedure">ZKProcedureUtil</a>&nbsp;controller,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;opInstanceName)</code>
<div class="block">Get the full znode path for the node used by the coordinator to trigger a global barrier
acquire on each subprocedure.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#getAcquiredBarrier--">getAcquiredBarrier</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#getAcquiredBarrierNode-java.lang.String-">getAcquiredBarrierNode</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;opInstanceName)</code>&nbsp;</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#getBaseZnode--">getBaseZnode</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#getReachedBarrierNode-java.lang.String-">getReachedBarrierNode</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;opInstanceName)</code>&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#getReachedBarrierNode-org.apache.hadoop.hbase.procedure.ZKProcedureUtil-java.lang.String-">getReachedBarrierNode</a></span>(<a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html" title="class in org.apache.hadoop.hbase.procedure">ZKProcedureUtil</a>&nbsp;controller,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;opInstanceName)</code>
<div class="block">Get the full znode path for the node used by the coordinator to trigger a global barrier
execution and release on each subprocedure.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/hadoop/hbase/zookeeper/ZKWatcher.html" title="class in org.apache.hadoop.hbase.zookeeper">ZKWatcher</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#getWatcher--">getWatcher</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>(package private) boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#isAbortNode-java.lang.String-">isAbortNode</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;path)</code>
<div class="block">Is this in the procedure barrier abort znode path</div>
</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#isAbortPathNode-java.lang.String-">isAbortPathNode</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;path)</code>
<div class="block">Is this in the procedure barrier abort znode path</div>
</td>
</tr>
<tr id="i15" class="rowColor">
<td class="colFirst"><code>(package private) boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#isAcquiredNode-java.lang.String-">isAcquiredNode</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;path)</code>
<div class="block">Is this the exact procedure barrier acquired znode</div>
</td>
</tr>
<tr id="i16" class="altColor">
<td class="colFirst"><code>(package private) boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#isAcquiredPathNode-java.lang.String-">isAcquiredPathNode</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;path)</code>
<div class="block">Is this in the procedure barrier acquired znode path</div>
</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>(package private) boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#isInProcedurePath-java.lang.String-">isInProcedurePath</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;path)</code>
<div class="block">Is this a procedure related znode path?
TODO: this is not strict, can return true if had name just starts with same prefix but is
different zdir.</div>
</td>
</tr>
<tr id="i18" class="altColor">
<td class="colFirst"><code>private boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#isMemberNode-java.lang.String-java.lang.String-">isMemberNode</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;path,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;statePath)</code>&nbsp;</td>
</tr>
<tr id="i19" class="rowColor">
<td class="colFirst"><code>(package private) boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#isReachedNode-java.lang.String-">isReachedNode</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;path)</code>
<div class="block">Is this the exact procedure barrier reached znode</div>
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<td class="colFirst"><code>(package private) boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#isReachedPathNode-java.lang.String-">isReachedPathNode</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;path)</code>
<div class="block">Is this in the procedure barrier reached znode path</div>
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<td class="colFirst"><code>(package private) void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#logZKTree-java.lang.String-">logZKTree</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;root)</code>
<div class="block">Recursively print the current state of ZK (non-transactional)</div>
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<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#logZKTree-java.lang.String-java.lang.String-">logZKTree</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;root,
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<div class="block">Helper method to print the current state of the ZK tree.</div>
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<pre>public&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#line.76">ZKProcedureUtil</a>(<a href="../../../../../org/apache/hadoop/hbase/zookeeper/ZKWatcher.html" title="class in org.apache.hadoop.hbase.zookeeper">ZKWatcher</a>&nbsp;watcher,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;procDescription)
throws org.apache.zookeeper.KeeperException</pre>
<div class="block">Top-level watcher/controller for procedures across the cluster.
<p>
On instantiation, this ensures the procedure znodes exist. This however requires the passed in
watcher has been started.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>watcher</code> - watcher for the cluster ZK. Owned by <tt>this</tt> and closed via
<a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#close--"><code>close()</code></a></dd>
<dd><code>procDescription</code> - name of the znode describing the procedure to run</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.zookeeper.KeeperException</code> - when the procedure znodes cannot be created</dd>
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<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<div class="block">Get the full znode path for the node used by the coordinator to trigger a global barrier
acquire on each subprocedure.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>controller</code> - controller running the procedure</dd>
<dd><code>opInstanceName</code> - name of the running procedure instance (not the procedure description).</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>full znode path to the prepare barrier/start node</dd>
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<div class="block">Get the full znode path for the node used by the coordinator to trigger a global barrier
execution and release on each subprocedure.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>controller</code> - controller running the procedure</dd>
<dd><code>opInstanceName</code> - name of the running procedure instance (not the procedure description).</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>full znode path to the commit barrier</dd>
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<div class="block">Get the full znode path for the node used by the coordinator or member to trigger an abort
of the global barrier acquisition or execution in subprocedures.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>controller</code> - controller running the procedure</dd>
<dd><code>opInstanceName</code> - name of the running procedure instance (not the procedure description).</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>full znode path to the abort znode</dd>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>The watcher associated with this listener</dd>
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<div class="block">Is this a procedure related znode path?
TODO: this is not strict, can return true if had name just starts with same prefix but is
different zdir.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if starts with baseZnode</dd>
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<div class="block">Is this the exact procedure barrier acquired znode</div>
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<div class="block">Is this in the procedure barrier acquired znode path</div>
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<div class="block">Is this the exact procedure barrier reached znode</div>
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<pre>boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#line.203">isReachedPathNode</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;path)</pre>
<div class="block">Is this in the procedure barrier reached znode path</div>
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<pre>private&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#line.214">isMemberNode</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;path,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;statePath)</pre>
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<pre>boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#line.225">isAbortNode</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;path)</pre>
<div class="block">Is this in the procedure barrier abort znode path</div>
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<pre>public&nbsp;boolean&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#line.232">isAbortPathNode</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;path)</pre>
<div class="block">Is this in the procedure barrier abort znode path</div>
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<pre>void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#line.244">logZKTree</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;root)</pre>
<div class="block">Recursively print the current state of ZK (non-transactional)</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>root</code> - name of the root directory in zk to print</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.zookeeper.KeeperException</code></dd>
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<pre>protected&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#line.261">logZKTree</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;root,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;prefix)
throws org.apache.zookeeper.KeeperException</pre>
<div class="block">Helper method to print the current state of the ZK tree.</div>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.zookeeper.KeeperException</code> - if an unexpected exception occurs</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#logZKTree-java.lang.String-"><code>logZKTree(String)</code></a></dd>
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<pre>public&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#line.271">clearChildZNodes</a>()
throws org.apache.zookeeper.KeeperException</pre>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.zookeeper.KeeperException</code></dd>
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<pre>public&nbsp;void&nbsp;<a href="../../../../../src-html/org/apache/hadoop/hbase/procedure/ZKProcedureUtil.html#line.285">clearZNodes</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;procedureName)
throws org.apache.zookeeper.KeeperException</pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.zookeeper.KeeperException</code></dd>
</dl>
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