You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@hbase.apache.org by "Elliott Clark (JIRA)" <ji...@apache.org> on 2013/08/14 19:46:48 UTC
[jira] [Commented] (HBASE-9215) Allow region server metrics to be
collected on a periodic basis
[ https://issues.apache.org/jira/browse/HBASE-9215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13739939#comment-13739939 ]
Elliott Clark commented on HBASE-9215:
--------------------------------------
Because the fsRead and write latency mixed compaction in with normal operation those metrics were basically useless so they were culled.
> Allow region server metrics to be collected on a periodic basis
> ---------------------------------------------------------------
>
> Key: HBASE-9215
> URL: https://issues.apache.org/jira/browse/HBASE-9215
> Project: HBase
> Issue Type: Improvement
> Reporter: Ted Yu
>
> 0.94 provides the following metrics w.r.t. read / write latencies:
> {code}
> hbase.regionserver.fsReadLatencyHistogram_75th_percentile
> hbase.regionserver.fsReadLatencyHistogram_95th_percentile
> hbase.regionserver.fsReadLatencyHistogram_99th_percentile
> hbase.regionserver.fsReadLatencyHistogram_max
> hbase.regionserver.fsReadLatencyHistogram_mean
> hbase.regionserver.fsReadLatencyHistogram_median
> hbase.regionserver.fsReadLatencyHistogram_min
> hbase.regionserver.fsReadLatencyHistogram_num_ops
> hbase.regionserver.fsReadLatencyHistogram_std_dev
> hbase.regionserver.fsReadLatency_avg_time
> hbase.regionserver.fsReadLatency_num_ops
> hbase.regionserver.fsSyncLatency_avg_time
> hbase.regionserver.fsSyncLatency_num_ops
> hbase.regionserver.fsWriteLatencyHistogram_75th_percentile
> hbase.regionserver.fsWriteLatencyHistogram_95th_percentile
> hbase.regionserver.fsWriteLatencyHistogram_99th_percentile
> hbase.regionserver.fsWriteLatencyHistogram_max
> hbase.regionserver.fsWriteLatencyHistogram_mean
> hbase.regionserver.fsWriteLatencyHistogram_median
> hbase.regionserver.fsWriteLatencyHistogram_min
> hbase.regionserver.fsWriteLatencyHistogram_num_ops
> hbase.regionserver.fsWriteLatencyHistogram_std_dev
> hbase.regionserver.fsWriteLatency_avg_time
> hbase.regionserver.fsWriteLatency_num_ops
> {code}
> The above is collected in doUpdates() which is called periodically.
> In 0.95 / trunk, I don't see facility for periodically updating metrics.
> This should be supported.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira