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From "cuijianwei (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-10129) support real time rpc invoke latency percentile statistics for methods of HRegionInterface
Date Wed, 11 Dec 2013 13:10:07 GMT

     [ https://issues.apache.org/jira/browse/HBASE-10129?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

cuijianwei updated HBASE-10129:
-------------------------------

    Attachment: HBASE-10129-0.94-v1.patch

This patch will computing real time rpc invoke latency percentiles for methods of HRegionInterface,
including:
1. Based on MetricsHistogram, implement MetricsTimeVaryingHistogram which will compute real
time percentiles for metric;
2. Add 999th percentile statistics for MetricsHistogram;
3. Extend HBaseRpcMetrics to compute rpc invoke real time latency percentiles based on MetricsTimeVaryingHistogram.

> support real time rpc invoke latency percentile statistics for methods of HRegionInterface

> -------------------------------------------------------------------------------------------
>
>                 Key: HBASE-10129
>                 URL: https://issues.apache.org/jira/browse/HBASE-10129
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>    Affects Versions: 0.94.14
>            Reporter: cuijianwei
>         Attachments: HBASE-10129-0.94-v1.patch
>
>
> It is important for applications to get latency statistics when invoking hbase apis.
Currently, the average latency of methods in HRegionInterface will be computed in HBaseRpcMetrics.
However, user might expect more detail latency statistics, such as 75% percentile latency,
95% percentile latency, etc. Therefore, will it be useful if we computing latency percentiles
for rpc invoking of region server methods? 



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