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| <div class="subTitle">org.apache.hadoop.hbase.regionserver</div> |
| <h2 title="Class BootstrapNodeManager" class="title">Class BootstrapNodeManager</h2> |
| </div> |
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| <ul class="inheritance"> |
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| <li> |
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| <li>org.apache.hadoop.hbase.regionserver.BootstrapNodeManager</li> |
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| <pre>@InterfaceAudience.Private |
| public class <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#line.63">BootstrapNodeManager</a> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">Manage the bootstrap node list at region server side. |
| <p/> |
| It will request master first to get the initial set of bootstrap nodes(a sub set of live region |
| servers), and then it will exchange the bootstrap nodes with other bootstrap nodes. In most |
| cases, if the cluster is stable, we do not need to request master again until we reach the |
| request master interval. And if the current number of bootstrap nodes is not enough, we will |
| request master soon. |
| <p/> |
| The algorithm is very simple, as we will always fallback to request master. THe trick here is |
| that, if we can not get enough bootstrap nodes from master, then the cluster will be small, so it |
| will not put too much pressure on master if we always request master. And for large clusters, we |
| will soon get enough bootstrap nodes and stop requesting master.</div> |
| </li> |
| </ul> |
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| <div class="summary"> |
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| <!-- =========== 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"> </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>private <a href="../../../../../org/apache/hadoop/hbase/client/AsyncClusterConnection.html" title="interface in org.apache.hadoop.hbase.client">AsyncClusterConnection</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#conn">conn</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#DEFAULT_REQUEST_MASTER_INTERVAL_SECS">DEFAULT_REQUEST_MASTER_INTERVAL_SECS</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#DEFAULT_REQUEST_MASTER_MIN_INTERVAL_SECS">DEFAULT_REQUEST_MASTER_MIN_INTERVAL_SECS</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#DEFAULT_REQUEST_REGIONSERVER_INTERVAL_SECS">DEFAULT_REQUEST_REGIONSERVER_INTERVAL_SECS</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ScheduledExecutorService.html?is-external=true" title="class or interface in java.util.concurrent">ScheduledExecutorService</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#executor">executor</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static float</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#JITTER">JITTER</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#lastRequestMasterTime">lastRequestMasterTime</a></span></code> </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/regionserver/BootstrapNodeManager.html#LOG">LOG</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/zookeeper/MasterAddressTracker.html" title="class in org.apache.hadoop.hbase.zookeeper">MasterAddressTracker</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#masterAddrTracker">masterAddrTracker</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#maxNodeCount">maxNodeCount</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#nodes">nodes</a></span></code> </td> |
| </tr> |
| <tr 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/regionserver/BootstrapNodeManager.html#REQUEST_MASTER_INTERVAL_SECS">REQUEST_MASTER_INTERVAL_SECS</a></span></code> </td> |
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| <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/regionserver/BootstrapNodeManager.html#REQUEST_MASTER_MIN_INTERVAL_SECS">REQUEST_MASTER_MIN_INTERVAL_SECS</a></span></code> </td> |
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| <tr 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/regionserver/BootstrapNodeManager.html#REQUEST_REGIONSERVER_INTERVAL_SECS">REQUEST_REGIONSERVER_INTERVAL_SECS</a></span></code> </td> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>private long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#requestMasterIntervalSecs">requestMasterIntervalSecs</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#requestMasterMinIntervalSecs">requestMasterMinIntervalSecs</a></span></code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#requestRegionServerIntervalSecs">requestRegionServerIntervalSecs</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/util/RetryCounter.html" title="class in org.apache.hadoop.hbase.util">RetryCounter</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#retryCounter">retryCounter</a></span></code> </td> |
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| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/util/RetryCounterFactory.html" title="class in org.apache.hadoop.hbase.util">RetryCounterFactory</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#retryCounterFactory">retryCounterFactory</a></span></code> </td> |
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| <th class="colOne" scope="col">Constructor and Description</th> |
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| <tr class="altColor"> |
| <td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#BootstrapNodeManager-org.apache.hadoop.hbase.client.AsyncClusterConnection-org.apache.hadoop.hbase.zookeeper.MasterAddressTracker-">BootstrapNodeManager</a></span>(<a href="../../../../../org/apache/hadoop/hbase/client/AsyncClusterConnection.html" title="interface in org.apache.hadoop.hbase.client">AsyncClusterConnection</a> conn, |
| <a href="../../../../../org/apache/hadoop/hbase/zookeeper/MasterAddressTracker.html" title="class in org.apache.hadoop.hbase.zookeeper">MasterAddressTracker</a> masterAddrTracker)</code> </td> |
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| <tr> |
| <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><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><<a href="../../../../../org/apache/hadoop/hbase/ServerName.html" title="class in org.apache.hadoop.hbase">ServerName</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#getBootstrapNodes--">getBootstrapNodes</a></span>()</code> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>private long</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#getDelay-long-">getDelay</a></span>(long delay)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>private void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#getFromMaster--">getFromMaster</a></span>()</code> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>private void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#getFromRegionServer--">getFromRegionServer</a></span>()</code> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#stop--">stop</a></span>()</code> </td> |
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| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li> |
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| <pre>private static final org.slf4j.Logger <a href="../../../../../src-html/org/apache/hadoop/hbase/regionserver/BootstrapNodeManager.html#line.65">LOG</a></pre> |
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