[jira] [Assigned] (HDFS-8829) DataNode sets SO_RCVBUF explicitly is disabling tcp auto-tuning

[He Tianyi (JIRA)]

 [ 
https://issues.apache.org/jira/browse/HDFS-8829?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

He Tianyi reassigned HDFS-8829:
---

Assignee: He Tianyi  (was: kanaka kumar avvaru)

> DataNode sets SO_RCVBUF explicitly is disabling tcp auto-tuning
> ---
>
> Key: HDFS-8829
> URL: https://issues.apache.org/jira/browse/HDFS-8829
> Project: Hadoop HDFS
>  Issue Type: Improvement
>  Components: datanode
>Affects Versions: 2.3.0, 2.6.0
>Reporter: He Tianyi
>Assignee: He Tianyi
>
> {code:java}
>   private void initDataXceiver(Configuration conf) throws IOException {
> // find free port or use privileged port provided
> TcpPeerServer tcpPeerServer;
> if (secureResources != null) {
>   tcpPeerServer = new TcpPeerServer(secureResources);
> } else {
>   tcpPeerServer = new TcpPeerServer(dnConf.socketWriteTimeout,
>   DataNode.getStreamingAddr(conf));
> }
> 
> tcpPeerServer.setReceiveBufferSize(HdfsConstants.DEFAULT_DATA_SOCKET_SIZE);
> {code}
> The last line sets SO_RCVBUF explicitly, thus disabling tcp auto-tuning on 
> some system.
> Shall we make this behavior configurable?



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[jira] [Assigned] (HDFS-8829) DataNode sets SO_RCVBUF explicitly is disabling tcp auto-tuning

[kanaka kumar avvaru (JIRA)]

 [ 
https://issues.apache.org/jira/browse/HDFS-8829?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

kanaka kumar avvaru reassigned HDFS-8829:
-

Assignee: kanaka kumar avvaru

> DataNode sets SO_RCVBUF explicitly is disabling tcp auto-tuning
> ---
>
> Key: HDFS-8829
> URL: https://issues.apache.org/jira/browse/HDFS-8829
> Project: Hadoop HDFS
>  Issue Type: Improvement
>  Components: datanode
>Affects Versions: 2.3.0, 2.6.0
>Reporter: He Tianyi
>Assignee: kanaka kumar avvaru
>
> {code:java}
>   private void initDataXceiver(Configuration conf) throws IOException {
> // find free port or use privileged port provided
> TcpPeerServer tcpPeerServer;
> if (secureResources != null) {
>   tcpPeerServer = new TcpPeerServer(secureResources);
> } else {
>   tcpPeerServer = new TcpPeerServer(dnConf.socketWriteTimeout,
>   DataNode.getStreamingAddr(conf));
> }
> 
> tcpPeerServer.setReceiveBufferSize(HdfsConstants.DEFAULT_DATA_SOCKET_SIZE);
> {code}
> The last line sets SO_RCVBUF explicitly, thus disabling tcp auto-tuning on 
> some system.
> Shall we make this behavior configurable?



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