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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-1581) Metrics from DFSClient
Date Wed, 12 Jan 2011 18:54:51 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1581?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12980856#action_12980856

dhruba borthakur commented on HDFS-1581:

In particular:
1. number of read/write calls from the client
2. the amount of data (mb/sec) that is being transmitted/received by the client
3. the size of the dataQueue and ackQueue in the DFSClient.DFSOutputStream
4. the number of pipeline write errrors : DFSClient.DFSOutputStream.recoveryErrorCount

> Metrics from DFSClient
> ----------------------
>                 Key: HDFS-1581
>                 URL: https://issues.apache.org/jira/browse/HDFS-1581
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs client
>            Reporter: dhruba borthakur
> We would like to get some metrics generated by the DFS Client. This helps in analyzing/debugging
applications that use HDFS to store data.

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