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Date: Mon, 1 Aug 2011 15:04:10 +0000 (UTC)
From: "Devaraj K (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] [Updated] (HADOOP-7086) Retrying socket connection failure
 times can be made as configurable
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     [ https://issues.apache.org/jira/browse/HADOOP-7086?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Devaraj K updated HADOOP-7086:
------------------------------

    Affects Version/s:     (was: 0.21.0)

> Retrying socket connection failure times can be made as configurable
> --------------------------------------------------------------------
>
>                 Key: HADOOP-7086
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7086
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: conf
>         Environment: NA
>            Reporter: Devaraj K
>            Assignee: Devaraj K
>            Priority: Minor
>             Fix For: 0.23.0
>
>         Attachments: HADOOP-7086.patch, common-3899.patch
>
>   Original Estimate: 72h
>  Remaining Estimate: 72h
>
> Retrying socket connection failure times are hard coded as 45 and it is giving the retryring message for 45 times as below. 
> 2011-01-04 15:14:30,700 INFO ipc.Client (Client.java:handleConnectionFailure(487)) - Retrying connect to server: /10.18.52.124:50020. Already tried 1 time(s).
> This can be made as configurable and also we can keep the default value as 45. If the user wants to decrease/increase,  they can add this configurable property otherwise it can continue with the default value.
> common\src\java\org\apache\hadoop\ipc\Client.java:
> -----------------------------------------------------------------------
> private synchronized void setupConnection() throws IOException {
>       short ioFailures = 0;
>       short timeoutFailures = 0;
>       while (true) {
>         try {
>           this.socket = socketFactory.createSocket();
>           this.socket.setTcpNoDelay(tcpNoDelay);
>           // connection time out is 20s
>           NetUtils.connect(this.socket, remoteId.getAddress(), 20000);
>           if (rpcTimeout > 0) {
>             pingInterval = rpcTimeout;  // rpcTimeout overwrites pingInterval
>           }
>           this.socket.setSoTimeout(pingInterval);
>           return;
>         } catch (SocketTimeoutException toe) {
>           /*
>            * The max number of retries is 45, which amounts to 20s*45 = 15
>            * minutes retries.
>            */
>           handleConnectionFailure(timeoutFailures++, 45, toe);
>         } catch (IOException ie) {
>           handleConnectionFailure(ioFailures++, maxRetries, ie);
>         }
>       }
>     }

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