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From ni...@apache.org
Subject [1/2] GIRAPH-623: Website Documentation: table of parameters
Date Fri, 21 Jun 2013 20:23:43 GMT
Updated Branches:
  refs/heads/trunk d333c4099 -> 52c88d8d9


http://git-wip-us.apache.org/repos/asf/giraph/blob/52c88d8d/src/site/xdoc/options.xml
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+<?xml version='1.0' encoding='UTF-8'?>
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+'License'); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+'AS IS' BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+<document xmlns='http://maven.apache.org/XDOC/2.0'
+          xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'
+          xsi:schemaLocation='http://maven.apache.org/XDOC/2.0  http://maven.apache.org/xsd/xdoc-2.0.xsd'>
+  <properties>
+    <title>Giraph Options</title>
+  </properties>
+  <body>
+    <section name='Giraph Options'>
+      <table border='0' style='width:110%; max-width:110%'>
+       <tr>
+        <th>label</th>
+        <th>type</th>
+        <th>default value</th>
+        <th>description</th>
+       </tr>
+       <tr>
+         <td>giraph.SplitMasterWorker</td>
+         <td>boolean</td>
+         <td>true</td>
+         <td>Separate the workers and the master tasks.  This is required to support
dynamic recovery. (boolean)</td>
+       </tr>
+       <tr>
+         <td>giraph.ZkSkipAcl</td>
+         <td>boolean</td>
+         <td>true</td>
+         <td>ZooKeeper skip ACLs</td>
+       </tr>
+       <tr>
+         <td>giraph.authenticate</td>
+         <td>boolean</td>
+         <td>false</td>
+         <td>Whether to use SASL with DIGEST and Hadoop Job Tokens to authenticate
and authorize Netty BSP Clients to Servers.</td>
+       </tr>
+       <tr>
+         <td>giraph.cleanupCheckpointsAfterSuccess</td>
+         <td>boolean</td>
+         <td>true</td>
+         <td>Delete checkpoints after a successful job run?</td>
+       </tr>
+       <tr>
+         <td>giraph.doOutputDuringComputation</td>
+         <td>boolean</td>
+         <td>false</td>
+         <td>If you use this option, instead of having saving vertices in the end of
application, saveVertex will be called right after each vertex.compute() is called.NOTE: This
feature doesn't work well with checkpointing - if you restart from a checkpoint you won't
have any ouptut from previous supresteps.</td>
+       </tr>
+       <tr>
+         <td>giraph.failFirstIpcPortBindAttempt</td>
+         <td>boolean</td>
+         <td>false</td>
+         <td>Fail first IPC port binding attempt, simulate binding failure on real
grid testing</td>
+       </tr>
+       <tr>
+         <td>giraph.isStaticGraph</td>
+         <td>boolean</td>
+         <td>false</td>
+         <td>The application will not mutate the graph topology (the edges). It is
used to optimise out-of-core graph, by not writing back edges every time.</td>
+       </tr>
+       <tr>
+         <td>giraph.jmap.histo.enable</td>
+         <td>boolean</td>
+         <td>false</td>
+         <td>Configuration key to enable jmap printing</td>
+       </tr>
+       <tr>
+         <td>giraph.keepZooKeeperData</td>
+         <td>boolean</td>
+         <td>false</td>
+         <td>Keep the zookeeper output for debugging? Default is to remove it.</td>
+       </tr>
+       <tr>
+         <td>giraph.localTestMode</td>
+         <td>boolean</td>
+         <td>false</td>
+         <td>Indicates whether this job is run in an internal unit test</td>
+       </tr>
+       <tr>
+         <td>giraph.logThreadLayout</td>
+         <td>boolean</td>
+         <td>false</td>
+         <td>Use thread level debugging?</td>
+       </tr>
+       <tr>
+         <td>giraph.metrics.enable</td>
+         <td>boolean</td>
+         <td>false</td>
+         <td>Enable the Metrics system</td>
+       </tr>
+       <tr>
+         <td>giraph.nettyClientUseExecutionHandler</td>
+         <td>boolean</td>
+         <td>true</td>
+         <td>Use the execution handler in netty on the client?</td>
+       </tr>
+       <tr>
+         <td>giraph.nettyRequestEncoderUseDirectBuffers</td>
+         <td>boolean</td>
+         <td>false</td>
+         <td>Whether or not netty request encoder should use direct byte buffers</td>
+       </tr>
+       <tr>
+         <td>giraph.nettyServerUseExecutionHandler</td>
+         <td>boolean</td>
+         <td>true</td>
+         <td>Use the execution handler in netty on the server?</td>
+       </tr>
+       <tr>
+         <td>giraph.nettySimulateFirstRequestClosed</td>
+         <td>boolean</td>
+         <td>false</td>
+         <td>Netty simulate a first request closed</td>
+       </tr>
+       <tr>
+         <td>giraph.nettySimulateFirstResponseFailed</td>
+         <td>boolean</td>
+         <td>false</td>
+         <td>Netty simulate a first response failed</td>
+       </tr>
+       <tr>
+         <td>giraph.pure.yarn.job</td>
+         <td>boolean</td>
+         <td>false</td>
+         <td>Is this a pure YARN job (i.e. no MapReduce layer managing Giraph tasks)</td>
+       </tr>
+       <tr>
+         <td>giraph.useInputSplitLocality</td>
+         <td>boolean</td>
+         <td>true</td>
+         <td>To minimize network usage when reading input splits, each worker can prioritize
splits that reside on its host. This, however, comes at the cost of increased load on ZooKeeper.
Hence, users with a lot of splits and input threads (or with configurations that can't exploit
locality) may want to disable it.</td>
+       </tr>
+       <tr>
+         <td>giraph.useMessageSizeEncoding</td>
+         <td>boolean</td>
+         <td>false</td>
+         <td>Use message size encoding (typically better for complex objects, not meant
for primitive wrapped messages)</td>
+       </tr>
+       <tr>
+         <td>giraph.useOutOfCoreGraph</td>
+         <td>boolean</td>
+         <td>false</td>
+         <td>Enable out-of-core graph.</td>
+       </tr>
+       <tr>
+         <td>giraph.useOutOfCoreMessages</td>
+         <td>boolean</td>
+         <td>false</td>
+         <td>Whether or not to use out-of-core messages</td>
+       </tr>
+       <tr>
+         <td>giraph.useSuperstepCounters</td>
+         <td>boolean</td>
+         <td>true</td>
+         <td>Use superstep counters? (boolean)</td>
+       </tr>
+       <tr>
+         <td>giraph.useUnsafeSerialization</td>
+         <td>boolean</td>
+         <td>true</td>
+         <td>Use unsafe serialization?</td>
+       </tr>
+       <tr>
+         <td>giraph.vertex.resolver.create.on.msgs</td>
+         <td>boolean</td>
+         <td>true</td>
+         <td>Option of whether to create vertexes that were not existent before but
received messages</td>
+       </tr>
+       <tr>
+         <td>giraph.vertexOutputFormatThreadSafe</td>
+         <td>boolean</td>
+         <td>false</td>
+         <td>Vertex output format thread-safe - if your VertexOutputFormat allows several
vertexWriters to be created and written to in parallel, you should set this to true.</td>
+       </tr>
+       <tr>
+         <td>giraph.zKForceSync</td>
+         <td>boolean</td>
+         <td>false</td>
+         <td>ZooKeeper force sync</td>
+       </tr>
+       <tr>
+         <td>giraph.aggregatorWriterClass</td>
+         <td>class</td>
+         <td>TextAggregatorWriter</td>
+         <td>AggregatorWriter class - optional</td>
+       </tr>
+       <tr>
+         <td>giraph.combinerClass</td>
+         <td>class</td>
+         <td>null</td>
+         <td>Vertex combiner class - optional</td>
+       </tr>
+       <tr>
+         <td>giraph.computation.factory.class</td>
+         <td>class</td>
+         <td>DefaultComputationFactory</td>
+         <td>Computation factory class - optional</td>
+       </tr>
+       <tr>
+         <td>giraph.computationClass</td>
+         <td>class</td>
+         <td>null</td>
+         <td>Computation class - required</td>
+       </tr>
+       <tr>
+         <td>giraph.edgeInputFilterClass</td>
+         <td>class</td>
+         <td>DefaultEdgeInputFilter</td>
+         <td>EdgeInputFilter class</td>
+       </tr>
+       <tr>
+         <td>giraph.edgeInputFormatClass</td>
+         <td>class</td>
+         <td>null</td>
+         <td>EdgeInputFormat class</td>
+       </tr>
+       <tr>
+         <td>giraph.edgeValueClass</td>
+         <td>class</td>
+         <td>null</td>
+         <td>Edge value class</td>
+       </tr>
+       <tr>
+         <td>giraph.graphPartitionerFactoryClass</td>
+         <td>class</td>
+         <td>HashPartitionerFactory</td>
+         <td>Graph partitioner factory class - optional</td>
+       </tr>
+       <tr>
+         <td>giraph.incomingMessageValueClass</td>
+         <td>class</td>
+         <td>null</td>
+         <td>Incoming message value class</td>
+       </tr>
+       <tr>
+         <td>giraph.inputOutEdgesClass</td>
+         <td>class</td>
+         <td>ByteArrayEdges</td>
+         <td>Vertex edges class to be used during edge input only - optional</td>
+       </tr>
+       <tr>
+         <td>giraph.jobObserverClass</td>
+         <td>class</td>
+         <td>DefaultJobObserver</td>
+         <td>Observer class to watch over job status - optional</td>
+       </tr>
+       <tr>
+         <td>giraph.master.observers</td>
+         <td>class</td>
+         <td>null</td>
+         <td>Classes for Master Observer - optional</td>
+       </tr>
+       <tr>
+         <td>giraph.masterComputeClass</td>
+         <td>class</td>
+         <td>DefaultMasterCompute</td>
+         <td>Class for Master - optional</td>
+       </tr>
+       <tr>
+         <td>giraph.outEdgesClass</td>
+         <td>class</td>
+         <td>ByteArrayEdges</td>
+         <td>Vertex edges class - optional</td>
+       </tr>
+       <tr>
+         <td>giraph.outgoingMessageValueClass</td>
+         <td>class</td>
+         <td>null</td>
+         <td>Outgoing message value class</td>
+       </tr>
+       <tr>
+         <td>giraph.partitionClass</td>
+         <td>class</td>
+         <td>SimplePartition</td>
+         <td>Partition class - optional</td>
+       </tr>
+       <tr>
+         <td>giraph.typesHolder</td>
+         <td>class</td>
+         <td>null</td>
+         <td>TypesHolder, used if Computation not set - optional</td>
+       </tr>
+       <tr>
+         <td>giraph.vertexIdClass</td>
+         <td>class</td>
+         <td>null</td>
+         <td>Vertex index class</td>
+       </tr>
+       <tr>
+         <td>giraph.vertexInputFilterClass</td>
+         <td>class</td>
+         <td>DefaultVertexInputFilter</td>
+         <td>VertexInputFilter class</td>
+       </tr>
+       <tr>
+         <td>giraph.vertexInputFormatClass</td>
+         <td>class</td>
+         <td>null</td>
+         <td>VertexInputFormat class (at least one of the input format classes is required)</td>
+       </tr>
+       <tr>
+         <td>giraph.vertexOutputFormatClass</td>
+         <td>class</td>
+         <td>null</td>
+         <td>VertexOutputFormat class</td>
+       </tr>
+       <tr>
+         <td>giraph.vertexResolverClass</td>
+         <td>class</td>
+         <td>DefaultVertexResolver</td>
+         <td>Vertex resolver class - optional</td>
+       </tr>
+       <tr>
+         <td>giraph.vertexValueClass</td>
+         <td>class</td>
+         <td>null</td>
+         <td>Vertex value class</td>
+       </tr>
+       <tr>
+         <td>giraph.vertexValueFactoryClass</td>
+         <td>class</td>
+         <td>DefaultVertexValueFactory</td>
+         <td>Vertex value factory class - optional</td>
+       </tr>
+       <tr>
+         <td>giraph.worker.observers</td>
+         <td>class</td>
+         <td>null</td>
+         <td>Classes for Worker Observer - optional</td>
+       </tr>
+       <tr>
+         <td>giraph.workerContextClass</td>
+         <td>class</td>
+         <td>DefaultWorkerContext</td>
+         <td>Worker contextclass</td>
+       </tr>
+       <tr>
+         <td>giraph.computation.language</td>
+         <td>enum</td>
+         <td>JAVA</td>
+         <td>Which language computation is implemented in</td>
+       </tr>
+       <tr>
+         <td>giraph.channelsPerServer</td>
+         <td>integer</td>
+         <td>1</td>
+         <td>Number of channels used per server</td>
+       </tr>
+       <tr>
+         <td>giraph.checkpointFrequency</td>
+         <td>integer</td>
+         <td>0</td>
+         <td>How often to checkpoint (i.e. 0, means no checkpoint, 1 means every superstep,
2 is every two supersteps, etc.).</td>
+       </tr>
+       <tr>
+         <td>giraph.clientReceiveBufferSize</td>
+         <td>integer</td>
+         <td>32768</td>
+         <td>Client receive buffer size</td>
+       </tr>
+       <tr>
+         <td>giraph.clientSendBufferSize</td>
+         <td>integer</td>
+         <td>524288</td>
+         <td>Client send buffer size</td>
+       </tr>
+       <tr>
+         <td>giraph.edgeRequestSize</td>
+         <td>integer</td>
+         <td>524288</td>
+         <td>Maximum size of edges (in bytes) per peer before flush</td>
+       </tr>
+       <tr>
+         <td>giraph.eventWaitMsecs</td>
+         <td>integer</td>
+         <td>30000</td>
+         <td>Millseconds to wait for an event before continuing</td>
+       </tr>
+       <tr>
+         <td>giraph.ipcInitialPort</td>
+         <td>integer</td>
+         <td>30000</td>
+         <td>Initial port to start using for the IPC communication</td>
+       </tr>
+       <tr>
+         <td>giraph.jmap.histo.msec</td>
+         <td>integer</td>
+         <td>30000</td>
+         <td>Configuration key for msec to sleep between calls</td>
+       </tr>
+       <tr>
+         <td>giraph.jmap.histo.print_lines</td>
+         <td>integer</td>
+         <td>30</td>
+         <td>Configuration key for how many lines to print</td>
+       </tr>
+       <tr>
+         <td>giraph.maxIpcPortBindAttempts</td>
+         <td>integer</td>
+         <td>20</td>
+         <td>Maximum bind attempts for different IPC ports</td>
+       </tr>
+       <tr>
+         <td>giraph.maxMasterSuperstepWaitMsecs</td>
+         <td>integer</td>
+         <td>600000</td>
+         <td>Maximum milliseconds to wait before giving up trying to get the minimum
number of workers before a superstep (int).</td>
+       </tr>
+       <tr>
+         <td>giraph.maxMessagesInMemory</td>
+         <td>integer</td>
+         <td>1000000</td>
+         <td>If using out-of-core messaging, it tells how much messages do we keep
in memory.</td>
+       </tr>
+       <tr>
+         <td>giraph.maxMutationsPerRequest</td>
+         <td>integer</td>
+         <td>100</td>
+         <td>Maximum number of mutations per partition before flush</td>
+       </tr>
+       <tr>
+         <td>giraph.maxNumberOfSupersteps</td>
+         <td>integer</td>
+         <td>1</td>
+         <td>The application will halt after this many supersteps is completed. For
instance, if it is set to 3, the application will run at most 0, 1, and 2 supersteps and then
go into the shutdown superstep.</td>
+       </tr>
+       <tr>
+         <td>giraph.maxPartitionsInMemory</td>
+         <td>integer</td>
+         <td>10</td>
+         <td>Maximum number of partitions to hold in memory for each worker.</td>
+       </tr>
+       <tr>
+         <td>giraph.maxRequestMilliseconds</td>
+         <td>integer</td>
+         <td>600000</td>
+         <td>Milliseconds for a request to complete (or else resend)</td>
+       </tr>
+       <tr>
+         <td>giraph.maxResolveAddressAttempts</td>
+         <td>integer</td>
+         <td>5</td>
+         <td>Max resolve address attempts</td>
+       </tr>
+       <tr>
+         <td>giraph.messagesBufferSize</td>
+         <td>integer</td>
+         <td>8192</td>
+         <td>Size of buffer when reading and writing messages out-of-core.</td>
+       </tr>
+       <tr>
+         <td>giraph.msgRequestSize</td>
+         <td>integer</td>
+         <td>524288</td>
+         <td>Maximum size of messages (in bytes) per peer before flush</td>
+       </tr>
+       <tr>
+         <td>giraph.nettyClientExecutionThreads</td>
+         <td>integer</td>
+         <td>8</td>
+         <td>Netty client execution threads (execution handler)</td>
+       </tr>
+       <tr>
+         <td>giraph.nettyClientThreads</td>
+         <td>integer</td>
+         <td>4</td>
+         <td>Netty client threads</td>
+       </tr>
+       <tr>
+         <td>giraph.nettyMaxConnectionFailures</td>
+         <td>integer</td>
+         <td>1000</td>
+         <td>Netty max connection failures</td>
+       </tr>
+       <tr>
+         <td>giraph.nettyRequestEncoderBufferSize</td>
+         <td>integer</td>
+         <td>32768</td>
+         <td>How big to make the encoder buffer?</td>
+       </tr>
+       <tr>
+         <td>giraph.nettyServerExecutionThreads</td>
+         <td>integer</td>
+         <td>8</td>
+         <td>Netty server execution threads (execution handler)</td>
+       </tr>
+       <tr>
+         <td>giraph.nettyServerThreads</td>
+         <td>integer</td>
+         <td>16</td>
+         <td>Netty server threads</td>
+       </tr>
+       <tr>
+         <td>giraph.numComputeThreads</td>
+         <td>integer</td>
+         <td>1</td>
+         <td>Number of threads for vertex computation</td>
+       </tr>
+       <tr>
+         <td>giraph.numInputThreads</td>
+         <td>integer</td>
+         <td>1</td>
+         <td>Number of threads for input split loading</td>
+       </tr>
+       <tr>
+         <td>giraph.numOutputThreads</td>
+         <td>integer</td>
+         <td>1</td>
+         <td>Number of threads for writing output in the end of the application</td>
+       </tr>
+       <tr>
+         <td>giraph.partitionLongTailMinPrint</td>
+         <td>integer</td>
+         <td>1</td>
+         <td>Minimum stragglers of the superstep before printing them out</td>
+       </tr>
+       <tr>
+         <td>giraph.serverReceiveBufferSize</td>
+         <td>integer</td>
+         <td>524288</td>
+         <td>Server receive buffer size</td>
+       </tr>
+       <tr>
+         <td>giraph.serverSendBufferSize</td>
+         <td>integer</td>
+         <td>32768</td>
+         <td>Server send buffer size</td>
+       </tr>
+       <tr>
+         <td>giraph.tcpBacklog</td>
+         <td>integer</td>
+         <td>1</td>
+         <td>TCP backlog (defaults to number of workers)</td>
+       </tr>
+       <tr>
+         <td>giraph.userPartitionCount</td>
+         <td>integer</td>
+         <td>-1</td>
+         <td>Overrides default partition count calculation if not -1</td>
+       </tr>
+       <tr>
+         <td>giraph.waitingRequestMsecs</td>
+         <td>integer</td>
+         <td>15000</td>
+         <td>Msecs to wait between waiting for all requests to finish</td>
+       </tr>
+       <tr>
+         <td>giraph.yarn.task.heap.mb</td>
+         <td>integer</td>
+         <td>1024</td>
+         <td>Name of Giraph property for user-configurable heap memory per worker</td>
+       </tr>
+       <tr>
+         <td>giraph.zKMinSessionTimeout</td>
+         <td>integer</td>
+         <td>600000</td>
+         <td>ZooKeeper minimum session timeout</td>
+       </tr>
+       <tr>
+         <td>giraph.zkConnectionAttempts</td>
+         <td>integer</td>
+         <td>10</td>
+         <td>Number of ZooKeeper client connection attempts before giving up.</td>
+       </tr>
+       <tr>
+         <td>giraph.zkMaxSessionTimeout</td>
+         <td>integer</td>
+         <td>900000</td>
+         <td>ZooKeeper maximum session timeout</td>
+       </tr>
+       <tr>
+         <td>giraph.zkOpsMaxAttempts</td>
+         <td>integer</td>
+         <td>3</td>
+         <td>Max attempts for handling ZooKeeper connection loss</td>
+       </tr>
+       <tr>
+         <td>giraph.zkOpsRetryWaitMsecs</td>
+         <td>integer</td>
+         <td>5000</td>
+         <td>Msecs to wait before retrying a failed ZooKeeper op due to connection
loss.</td>
+       </tr>
+       <tr>
+         <td>giraph.zkServerCount</td>
+         <td>integer</td>
+         <td>1</td>
+         <td>Number of nodes (not tasks) to run Zookeeper on</td>
+       </tr>
+       <tr>
+         <td>giraph.zkServerPort</td>
+         <td>integer</td>
+         <td>22181</td>
+         <td>ZooKeeper port to use</td>
+       </tr>
+       <tr>
+         <td>giraph.zkServerlistPollMsecs</td>
+         <td>integer</td>
+         <td>3000</td>
+         <td>Polling interval to check for the ZooKeeper server data</td>
+       </tr>
+       <tr>
+         <td>giraph.zkSessionMsecTimeout</td>
+         <td>integer</td>
+         <td>60000</td>
+         <td>ZooKeeper session millisecond timeout</td>
+       </tr>
+       <tr>
+         <td>mapred.map.max.attempts</td>
+         <td>integer</td>
+         <td>-1</td>
+         <td>Maximum number of attempts a master/worker will retry before killing the
job.  This directly maps to the number of map task attempts in Hadoop.</td>
+       </tr>
+       <tr>
+         <td>giraph.additionalEdgeRequestSize</td>
+         <td>float</td>
+         <td>0.2</td>
+         <td>Additional size (expressed as a ratio) of each per-partition buffer on
top of the average size.</td>
+       </tr>
+       <tr>
+         <td>giraph.additionalMsgRequestSize</td>
+         <td>float</td>
+         <td>0.2</td>
+         <td>How much bigger than the average per partition size to make initial per
partition buffers. If this value is A, message request size is M, and a worker has P partitions,
than its initial partition buffer size will be (M / P) * (1 + A).</td>
+       </tr>
+       <tr>
+         <td>giraph.inputSplitSamplePercent</td>
+         <td>float</td>
+         <td>100.0</td>
+         <td>Input split sample percent - Used only for sampling and testing, rather
than an actual job.  The idea is that to test, you might only want a fraction of the actual
input splits from your VertexInputFormat to load (values should be [0, 100]).</td>
+       </tr>
+       <tr>
+         <td>giraph.masterPartitionCountMultiplier</td>
+         <td>float</td>
+         <td>1.0</td>
+         <td>Multiplier for the current workers squared</td>
+       </tr>
+       <tr>
+         <td>giraph.minPercentResponded</td>
+         <td>float</td>
+         <td>100.0</td>
+         <td>Minimum percent of the maximum number of workers that have responded in
order to continue progressing. (float)</td>
+       </tr>
+       <tr>
+         <td>giraph.InputSplitMaxEdges</td>
+         <td>long</td>
+         <td>-1</td>
+         <td>To limit outlier vertex input splits from producing too many vertices
or to help with testing, the number of edges loaded from an input split can be limited. By
default, everything is loaded.</td>
+       </tr>
+       <tr>
+         <td>giraph.InputSplitMaxVertices</td>
+         <td>long</td>
+         <td>-1</td>
+         <td>To limit outlier vertex input splits from producing too many vertices
or to help with testing, the number of vertices loaded from an input split can be limited.
By default, everything is loaded.</td>
+       </tr>
+       <tr>
+         <td>giraph.checkpointDirectory</td>
+         <td>string</td>
+         <td>_bsp/_checkpoints/</td>
+         <td>This directory has/stores the available checkpoint files in HDFS.</td>
+       </tr>
+       <tr>
+         <td>giraph.dns.interface</td>
+         <td>string</td>
+         <td>default</td>
+         <td>Interface to use for hostname resolution</td>
+       </tr>
+       <tr>
+         <td>giraph.dns.nameserver</td>
+         <td>string</td>
+         <td>default</td>
+         <td>Server for hostname resolution</td>
+       </tr>
+       <tr>
+         <td>giraph.logLevel</td>
+         <td>string</td>
+         <td>info</td>
+         <td>Override the Hadoop log level and set the desired log level.</td>
+       </tr>
+       <tr>
+         <td>giraph.messagesDirectory</td>
+         <td>string</td>
+         <td>_bsp/_messages/</td>
+         <td>Comma-separated list of directories in the local file system for out-of-core
messages.</td>
+       </tr>
+       <tr>
+         <td>giraph.nettyClientExecutionAfterHandler</td>
+         <td>string</td>
+         <td>requestEncoder</td>
+         <td>Where to place the netty client execution handle?</td>
+       </tr>
+       <tr>
+         <td>giraph.nettyServerExecutionAfterHandler</td>
+         <td>string</td>
+         <td>requestFrameDecoder</td>
+         <td>Where to place the netty server execution handle?</td>
+       </tr>
+       <tr>
+         <td>giraph.partitionsDirectory</td>
+         <td>string</td>
+         <td>_bsp/_partitions</td>
+         <td>Comma-separated list of directories in the local filesystem for out-of-core
partitions.</td>
+       </tr>
+       <tr>
+         <td>giraph.yarn.libjars</td>
+         <td>string</td>
+         <td></td>
+         <td>conf key for comma-separated list of jars to export to YARN workers</td>
+       </tr>
+       <tr>
+         <td>giraph.zkJavaOpts</td>
+         <td>string</td>
+         <td>-Xmx512m -XX:ParallelGCThreads=4 -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=70
-XX:MaxGCPauseMillis=100</td>
+         <td>Java opts passed to ZooKeeper startup</td>
+       </tr>
+       <tr>
+         <td>giraph.zkManagerDirectory</td>
+         <td>string</td>
+         <td>_bsp/_defaultZkManagerDir</td>
+         <td>If ZOOKEEPER_LIST is not set, then use this directory to manage ZooKeeper</td>
+       </tr>
+      </table>
+    </section>
+  </body>
+</document>


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