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Posted to common-issues@hadoop.apache.org by "Lisheng Sun (Jira)" <ji...@apache.org> on 2020/01/08 02:18:00 UTC

[jira] [Updated] (HADOOP-16793) Remove WARN log when ipc connection interrupted in Client#handleSaslConnectionFailure()

     [ https://issues.apache.org/jira/browse/HADOOP-16793?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lisheng Sun updated HADOOP-16793:
---------------------------------
    Description: 
log info:
{code:java}
// Some comments here
2020-01-07,15:01:17,816 WARN org.apache.hadoop.ipc.Client: Exception encountered while connecting to the server : java.io.InterruptedIOException: Interrupted while waiting for IO on channel java.nio.channels.SocketChannel[connected local=/10.75.13.227:50415 remote=mb2-hadoop-prc-ct06.awsind/10.75.15.99:11230]. 60000 millis timeout left
{code}

With RequestHedgingProxyProvider, one rpc call will send multiple requests to all namenodes. After one request return successfully,  all other requests will be interrupted. It's not a big problem and should not print a warning log.
{code:java}
private synchronized void handleSaslConnectionFailure(
....
LOG.warn("Exception encountered while connecting to "
        + "the server : " + ex);
}


{code}
 

  was:
{code:java}
private synchronized void handleSaslConnectionFailure(
....
LOG.warn("Exception encountered while connecting to "
        + "the server : " + ex);
}


{code}
With RequestHedgingProxyProvider, one rpc call will send multiple requests to all namenodes. After one request return successfully,  all other requests will be interrupted. It's not a big problem and should not print a warning log.


> Remove WARN log when ipc connection interrupted in Client#handleSaslConnectionFailure()
> ---------------------------------------------------------------------------------------
>
>                 Key: HADOOP-16793
>                 URL: https://issues.apache.org/jira/browse/HADOOP-16793
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Lisheng Sun
>            Priority: Minor
>
> log info:
> {code:java}
> // Some comments here
> 2020-01-07,15:01:17,816 WARN org.apache.hadoop.ipc.Client: Exception encountered while connecting to the server : java.io.InterruptedIOException: Interrupted while waiting for IO on channel java.nio.channels.SocketChannel[connected local=/10.75.13.227:50415 remote=mb2-hadoop-prc-ct06.awsind/10.75.15.99:11230]. 60000 millis timeout left
> {code}
> With RequestHedgingProxyProvider, one rpc call will send multiple requests to all namenodes. After one request return successfully,  all other requests will be interrupted. It's not a big problem and should not print a warning log.
> {code:java}
> private synchronized void handleSaslConnectionFailure(
> ....
> LOG.warn("Exception encountered while connecting to "
>         + "the server : " + ex);
> }
> {code}
>  



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