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| <pre>@InterfaceAudience.Private |
| public class <a href="../../../../../src-html/org/apache/hadoop/hbase/ipc/FastPathBalancedQueueRpcExecutor.html#line.38">FastPathBalancedQueueRpcExecutor</a> |
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| <div class="block">Balanced queue executor with a fastpath. Because this is FIFO, it has no respect for |
| ordering so a fast path skipping the queuing of Calls if an Handler is available, is possible. |
| Just pass the Call direct to waiting Handler thread. Try to keep the hot Handlers bubbling |
| rather than let them go cold and lose context. Idea taken from Apace Kudu (incubating). See |
| https://gerrit.cloudera.org/#/c/2938/7/src/kudu/rpc/service_queue.h</div> |
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| <td class="colFirst"><code>boolean</code></td> |
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| <td class="colFirst"><code>private <a href="../../../../../org/apache/hadoop/hbase/ipc/FastPathBalancedQueueRpcExecutor.FastPathHandler.html" title="class in org.apache.hadoop.hbase.ipc">FastPathBalancedQueueRpcExecutor.FastPathHandler</a></code></td> |
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| <pre>private final <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Deque.html?is-external=true" title="class or interface in java.util">Deque</a><<a href="../../../../../org/apache/hadoop/hbase/ipc/FastPathBalancedQueueRpcExecutor.FastPathHandler.html" title="class in org.apache.hadoop.hbase.ipc">FastPathBalancedQueueRpcExecutor.FastPathHandler</a>> <a href="../../../../../src-html/org/apache/hadoop/hbase/ipc/FastPathBalancedQueueRpcExecutor.html#line.44">fastPathHandlerStack</a></pre> |
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| <h4>FastPathBalancedQueueRpcExecutor</h4> |
| <pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/ipc/FastPathBalancedQueueRpcExecutor.html#line.46">FastPathBalancedQueueRpcExecutor</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> name, |
| int handlerCount, |
| int maxQueueLength, |
| <a href="../../../../../org/apache/hadoop/hbase/ipc/PriorityFunction.html" title="interface in org.apache.hadoop.hbase.ipc">PriorityFunction</a> priority, |
| org.apache.hadoop.conf.Configuration conf, |
| <a href="../../../../../org/apache/hadoop/hbase/Abortable.html" title="interface in org.apache.hadoop.hbase">Abortable</a> abortable)</pre> |
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| <a name="FastPathBalancedQueueRpcExecutor-java.lang.String-int-java.lang.String-int-org.apache.hadoop.hbase.ipc.PriorityFunction-org.apache.hadoop.conf.Configuration-org.apache.hadoop.hbase.Abortable-"> |
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| <h4>FastPathBalancedQueueRpcExecutor</h4> |
| <pre>public <a href="../../../../../src-html/org/apache/hadoop/hbase/ipc/FastPathBalancedQueueRpcExecutor.html#line.52">FastPathBalancedQueueRpcExecutor</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> name, |
| int handlerCount, |
| <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> callQueueType, |
| int maxQueueLength, |
| <a href="../../../../../org/apache/hadoop/hbase/ipc/PriorityFunction.html" title="interface in org.apache.hadoop.hbase.ipc">PriorityFunction</a> priority, |
| org.apache.hadoop.conf.Configuration conf, |
| <a href="../../../../../org/apache/hadoop/hbase/Abortable.html" title="interface in org.apache.hadoop.hbase">Abortable</a> abortable)</pre> |
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| <h4>getHandler</h4> |
| <pre>protected <a href="../../../../../org/apache/hadoop/hbase/ipc/RpcExecutor.Handler.html" title="class in org.apache.hadoop.hbase.ipc">RpcExecutor.Handler</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/ipc/FastPathBalancedQueueRpcExecutor.html#line.59">getHandler</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> name, |
| double handlerFailureThreshhold, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/BlockingQueue.html?is-external=true" title="class or interface in java.util.concurrent">BlockingQueue</a><<a href="../../../../../org/apache/hadoop/hbase/ipc/CallRunner.html" title="class in org.apache.hadoop.hbase.ipc">CallRunner</a>> q, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/atomic/AtomicInteger.html?is-external=true" title="class or interface in java.util.concurrent.atomic">AtomicInteger</a> activeHandlerCount)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../org/apache/hadoop/hbase/ipc/RpcExecutor.html#getHandler-java.lang.String-double-java.util.concurrent.BlockingQueue-java.util.concurrent.atomic.AtomicInteger-">RpcExecutor</a></code></span></div> |
| <div class="block">Override if providing alternate Handler implementation.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/ipc/RpcExecutor.html#getHandler-java.lang.String-double-java.util.concurrent.BlockingQueue-java.util.concurrent.atomic.AtomicInteger-">getHandler</a></code> in class <code><a href="../../../../../org/apache/hadoop/hbase/ipc/RpcExecutor.html" title="class in org.apache.hadoop.hbase.ipc">RpcExecutor</a></code></dd> |
| </dl> |
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| <h4>dispatch</h4> |
| <pre>public boolean <a href="../../../../../src-html/org/apache/hadoop/hbase/ipc/FastPathBalancedQueueRpcExecutor.html#line.66">dispatch</a>(<a href="../../../../../org/apache/hadoop/hbase/ipc/CallRunner.html" title="class in org.apache.hadoop.hbase.ipc">CallRunner</a> callTask) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from class: <code><a href="../../../../../org/apache/hadoop/hbase/ipc/RpcExecutor.html#dispatch-org.apache.hadoop.hbase.ipc.CallRunner-">RpcExecutor</a></code></span></div> |
| <div class="block">Add the request to the executor queue</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code><a href="../../../../../org/apache/hadoop/hbase/ipc/BalancedQueueRpcExecutor.html#dispatch-org.apache.hadoop.hbase.ipc.CallRunner-">dispatch</a></code> in class <code><a href="../../../../../org/apache/hadoop/hbase/ipc/BalancedQueueRpcExecutor.html" title="class in org.apache.hadoop.hbase.ipc">BalancedQueueRpcExecutor</a></code></dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></code></dd> |
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| <h4>popReadyHandler</h4> |
| <pre>private <a href="../../../../../org/apache/hadoop/hbase/ipc/FastPathBalancedQueueRpcExecutor.FastPathHandler.html" title="class in org.apache.hadoop.hbase.ipc">FastPathBalancedQueueRpcExecutor.FastPathHandler</a> <a href="../../../../../src-html/org/apache/hadoop/hbase/ipc/FastPathBalancedQueueRpcExecutor.html#line.79">popReadyHandler</a>()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Pop a Handler instance if one available ready-to-go or else return null.</dd> |
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