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https://issues.apache.org/jira/browse/HDFS-13274?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17118254#comment-17118254
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Janus Chow commented on HDFS-13274:
-----------------------------------
The mount table is mostly 3 layers deep, and we have 40 mount policy.
The FederationRPC stats are as follows:
{code:java}
"name" : "Hadoop:service=Router,name=FederationRPC",
"modelerType" :
"org.apache.hadoop.hdfs.server.federation.metrics.FederationRPCMetrics",
"ProxyOpFailureStandby" : 181,
"ProxyOpFailureCommunicate" : 8314,
"ProxyOpFailureClientOverloaded" : 0,
"ProxyOpNotImplemented" : 0,
"ProxyOpRetries" : 0,
"RouterFailureStateStoreOps" : 0,
"RouterFailureSafemodeOps" : 25,
"RouterFailureReadOnlyOps" : 0,
"RouterFailureLockedOps" : 0,
"RpcServerCallQueue" : 0,
"RpcServerNumOpenConnections" : 632,
"RpcClientNumConnections" : 1023,
"RpcClientNumActiveConnections" : 73,
"RpcClientNumCreatingConnections" : 0,
"RpcClientNumConnectionPools" : 161,
{code}
We set the pool-size to 100.
> RBF: Extend RouterRpcClient to use multiple sockets
> ---------------------------------------------------
>
> Key: HDFS-13274
> URL: https://issues.apache.org/jira/browse/HDFS-13274
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: Íñigo Goiri
> Assignee: Íñigo Goiri
> Priority: Major
>
> HADOOP-13144 introduces the ability to create multiple connections for the
> same user and use different sockets. The RouterRpcClient should use this
> approach to get a better throughput.
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