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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.heron.metricsmgr.sink.tmanager</a></div> |
| <h2 title="Class TManagerSink" class="title">Class TManagerSink</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.heron.metricsmgr.sink.tmanager.TManagerSink</li> |
| </ul> |
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| <dl> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><code>java.lang.AutoCloseable</code>, <code><a href="../../../spi/metricsmgr/sink/IMetricsSink.html" title="interface in org.apache.heron.spi.metricsmgr.sink">IMetricsSink</a></code></dd> |
| </dl> |
| <hr> |
| <pre>public class <span class="typeNameLabel">TManagerSink</span> |
| extends java.lang.Object |
| implements <a href="../../../spi/metricsmgr/sink/IMetricsSink.html" title="interface in org.apache.heron.spi.metricsmgr.sink">IMetricsSink</a></pre> |
| <div class="block">An IMetricsSink sends Metrics to TManager. |
| 1. It gets the TManagerLocation |
| <p> |
| 2. Then it would construct a long-live Service running TManagerClient, which could automatically |
| recover from uncaught exceptions, i.e. close the old one and start a new one. |
| Also, it provides API to update the TManagerLocation that TManagerClient need to connect and |
| restart the TManagerClient. |
| There are two scenarios we need to restart a TManagerClient in our case: |
| <p> |
| -- Uncaught exceptions happen within TManagerClient; then we would restart TManagerClient inside |
| the same ExecutorService inside the UncaughtExceptionHandlers. |
| Notice that, in java, exceptions occur inside UncaughtExceptionHandlers would not invoke |
| UncaughtExceptionHandlers; instead, it would kill the thread with that exception. |
| So if exceptions thrown during restart a new TManagerClient, this TManagerSink would die, and |
| external logic would take care of it. |
| <p> |
| -- TManagerLocation changes (though in fact, TManagerClient might also throw exceptions in this case), |
| in this case, we would invoke TManagerService to start from tManagerLocationStarter's thread. |
| But the TManagerService and TManagerClient still start wihtin the thread they run. |
| <p> |
| 3. When a new MetricsRecord comes by invoking processRecord, it would push the MetricsRecord |
| to the Communicator Queue to TManagerClient |
| <p> |
| Notice that we would not send all metrics to TManager; we would use MetricsFilter to figure out |
| needed metrics.</div> |
| </li> |
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| <tr> |
| <th class="colFirst" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E()">TManagerSink</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
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| <h3>Method Summary</h3> |
| <table class="memberSummary"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkCommunicator(org.apache.heron.common.basics.Communicator,int)">checkCommunicator</a></span>​(<a href="../../../common/basics/Communicator.html" title="class in org.apache.heron.common.basics">Communicator</a><<a href="../../../proto/tmanager/TopologyManager.PublishMetrics.html" title="class in org.apache.heron.proto.tmanager">TopologyManager.PublishMetrics</a>> communicator, |
| int maxSize)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#close()">close</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Closes this stream and releases any system resources associated |
| with it.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#createSimpleTManagerClientService(java.util.Map)">createSimpleTManagerClientService</a></span>​(java.util.Map<java.lang.String,​java.lang.Object> serviceConfig)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#flush()">flush</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Flush any buffered metrics |
| It would be called at an interval according to the configuration</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>protected <a href="../../../proto/tmanager/TopologyManager.TManagerLocation.html" title="class in org.apache.heron.proto.tmanager">TopologyManager.TManagerLocation</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getCurrentTManagerLocation()">getCurrentTManagerLocation</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>protected <a href="../../../proto/tmanager/TopologyManager.TManagerLocation.html" title="class in org.apache.heron.proto.tmanager">TopologyManager.TManagerLocation</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getCurrentTManagerLocationInService()">getCurrentTManagerLocationInService</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>protected <a href="TManagerClient.html" title="class in org.apache.heron.metricsmgr.sink.tmanager">TManagerClient</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTManagerClient()">getTManagerClient</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>protected org.apache.heron.metricsmgr.sink.tmanager.TManagerSink.TManagerClientService</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTManagerClientService()">getTManagerClientService</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>protected int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTManagerStartedAttempts()">getTManagerStartedAttempts</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#init(java.util.Map,org.apache.heron.spi.metricsmgr.sink.SinkContext)">init</a></span>​(java.util.Map<java.lang.String,​java.lang.Object> conf, |
| <a href="../../../spi/metricsmgr/sink/SinkContext.html" title="interface in org.apache.heron.spi.metricsmgr.sink">SinkContext</a> context)</code></th> |
| <td class="colLast"> |
| <div class="block">Initialize the MetricsSink</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#processRecord(org.apache.heron.spi.metricsmgr.metrics.MetricsRecord)">processRecord</a></span>​(<a href="../../../spi/metricsmgr/metrics/MetricsRecord.html" title="class in org.apache.heron.spi.metricsmgr.metrics">MetricsRecord</a> record)</code></th> |
| <td class="colLast"> |
| <div class="block">Process a metrics record in the sink</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#startNewTManagerClient(org.apache.heron.proto.tmanager.TopologyManager.TManagerLocation)">startNewTManagerClient</a></span>​(<a href="../../../proto/tmanager/TopologyManager.TManagerLocation.html" title="class in org.apache.heron.proto.tmanager">TopologyManager.TManagerLocation</a> location)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a id="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| <li class="blockList"> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
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| <h3>Constructor Detail</h3> |
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| <h4>TManagerSink</h4> |
| <pre>public TManagerSink()</pre> |
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| <h3>Method Detail</h3> |
| <a id="init(java.util.Map,org.apache.heron.spi.metricsmgr.sink.SinkContext)"> |
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| </a> |
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| <h4>init</h4> |
| <pre class="methodSignature">public void init​(java.util.Map<java.lang.String,​java.lang.Object> conf, |
| <a href="../../../spi/metricsmgr/sink/SinkContext.html" title="interface in org.apache.heron.spi.metricsmgr.sink">SinkContext</a> context)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../spi/metricsmgr/sink/IMetricsSink.html#init(java.util.Map,org.apache.heron.spi.metricsmgr.sink.SinkContext)">IMetricsSink</a></code></span></div> |
| <div class="block">Initialize the MetricsSink</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../spi/metricsmgr/sink/IMetricsSink.html#init(java.util.Map,org.apache.heron.spi.metricsmgr.sink.SinkContext)">init</a></code> in interface <code><a href="../../../spi/metricsmgr/sink/IMetricsSink.html" title="interface in org.apache.heron.spi.metricsmgr.sink">IMetricsSink</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>conf</code> - An unmodifiableMap containing basic configuration</dd> |
| <dd><code>context</code> - context objects for Sink to init |
| Attempts to modify the returned map, |
| whether direct or via its collection views, result in an UnsupportedOperationException.</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="processRecord(org.apache.heron.spi.metricsmgr.metrics.MetricsRecord)"> |
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| <h4>processRecord</h4> |
| <pre class="methodSignature">public void processRecord​(<a href="../../../spi/metricsmgr/metrics/MetricsRecord.html" title="class in org.apache.heron.spi.metricsmgr.metrics">MetricsRecord</a> record)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../spi/metricsmgr/sink/IMetricsSink.html#processRecord(org.apache.heron.spi.metricsmgr.metrics.MetricsRecord)">IMetricsSink</a></code></span></div> |
| <div class="block">Process a metrics record in the sink</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../spi/metricsmgr/sink/IMetricsSink.html#processRecord(org.apache.heron.spi.metricsmgr.metrics.MetricsRecord)">processRecord</a></code> in interface <code><a href="../../../spi/metricsmgr/sink/IMetricsSink.html" title="interface in org.apache.heron.spi.metricsmgr.sink">IMetricsSink</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>record</code> - the record to put</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="checkCommunicator(org.apache.heron.common.basics.Communicator,int)"> |
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| </a> |
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| <h4>checkCommunicator</h4> |
| <pre class="methodSignature">public static void checkCommunicator​(<a href="../../../common/basics/Communicator.html" title="class in org.apache.heron.common.basics">Communicator</a><<a href="../../../proto/tmanager/TopologyManager.PublishMetrics.html" title="class in org.apache.heron.proto.tmanager">TopologyManager.PublishMetrics</a>> communicator, |
| int maxSize)</pre> |
| </li> |
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| <h4>flush</h4> |
| <pre class="methodSignature">public void flush()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../spi/metricsmgr/sink/IMetricsSink.html#flush()">IMetricsSink</a></code></span></div> |
| <div class="block">Flush any buffered metrics |
| It would be called at an interval according to the configuration</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../spi/metricsmgr/sink/IMetricsSink.html#flush()">flush</a></code> in interface <code><a href="../../../spi/metricsmgr/sink/IMetricsSink.html" title="interface in org.apache.heron.spi.metricsmgr.sink">IMetricsSink</a></code></dd> |
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| <h4>close</h4> |
| <pre class="methodSignature">public void close()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="../../../spi/metricsmgr/sink/IMetricsSink.html#close()">IMetricsSink</a></code></span></div> |
| <div class="block">Closes this stream and releases any system resources associated |
| with it. If the stream is already closed then invoking this |
| method has no effect.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code>close</code> in interface <code>java.lang.AutoCloseable</code></dd> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="../../../spi/metricsmgr/sink/IMetricsSink.html#close()">close</a></code> in interface <code><a href="../../../spi/metricsmgr/sink/IMetricsSink.html" title="interface in org.apache.heron.spi.metricsmgr.sink">IMetricsSink</a></code></dd> |
| </dl> |
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| </ul> |
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| <h4>getTManagerClientService</h4> |
| <pre class="methodSignature">protected org.apache.heron.metricsmgr.sink.tmanager.TManagerSink.TManagerClientService getTManagerClientService()</pre> |
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| <a id="createSimpleTManagerClientService(java.util.Map)"> |
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| <h4>createSimpleTManagerClientService</h4> |
| <pre class="methodSignature">protected void createSimpleTManagerClientService​(java.util.Map<java.lang.String,​java.lang.Object> serviceConfig)</pre> |
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| <a id="getTManagerClient()"> |
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| <h4>getTManagerClient</h4> |
| <pre class="methodSignature">protected <a href="TManagerClient.html" title="class in org.apache.heron.metricsmgr.sink.tmanager">TManagerClient</a> getTManagerClient()</pre> |
| </li> |
| </ul> |
| <a id="startNewTManagerClient(org.apache.heron.proto.tmanager.TopologyManager.TManagerLocation)"> |
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| <h4>startNewTManagerClient</h4> |
| <pre class="methodSignature">protected void startNewTManagerClient​(<a href="../../../proto/tmanager/TopologyManager.TManagerLocation.html" title="class in org.apache.heron.proto.tmanager">TopologyManager.TManagerLocation</a> location)</pre> |
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| <h4>getTManagerStartedAttempts</h4> |
| <pre class="methodSignature">protected int getTManagerStartedAttempts()</pre> |
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| <h4>getCurrentTManagerLocation</h4> |
| <pre class="methodSignature">protected <a href="../../../proto/tmanager/TopologyManager.TManagerLocation.html" title="class in org.apache.heron.proto.tmanager">TopologyManager.TManagerLocation</a> getCurrentTManagerLocation()</pre> |
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| <h4>getCurrentTManagerLocationInService</h4> |
| <pre class="methodSignature">protected <a href="../../../proto/tmanager/TopologyManager.TManagerLocation.html" title="class in org.apache.heron.proto.tmanager">TopologyManager.TManagerLocation</a> getCurrentTManagerLocationInService()</pre> |
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