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https://issues.apache.org/jira/browse/HBASE-23996?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sanjeet Nishad updated HBASE-23996:
-----------------------------------
Description:
Many of the split related metrics like following are present RS side :
"SplitTime_num_ops": 0,
"SplitTime_min": 0,
"SplitTime_max": 0,
"SplitTime_mean": 0,
"SplitTime_25th_percentile": 0,
"SplitTime_median": 0,
"SplitTime_75th_percentile": 0,
"SplitTime_90th_percentile": 0,
"SplitTime_95th_percentile": 0,
"SplitTime_98th_percentile": 0,
"SplitTime_99th_percentile": 0,
"SplitTime_99.9th_percentile": 0,
Value of these will always be 0 since Split is happening Master side and there
is no Metrics update.
Update 1: After the fix, JMX is like this :
{
"name": "Hadoop:service=HBase,name=Master,sub=Procedure",
"modelerType": "Master,sub=Procedure",
"tag.Context": "master",
"tag.Hostname": "abc",
"numMasterWALs": 0,
"splitProcedure_RequestCount": 1,
"splitProcedure_FailedCount": 0,
"splitProcedure_SuccessCount": 1,
"splitProcedureTime_num_ops": 1,
"splitProcedureTime_min": 2082,
"splitProcedureTime_max": 2082,
"splitProcedureTime_mean": 2082,
"splitProcedureTime_25th_percentile": 2082,
"splitProcedureTime_median": 2082,
"splitProcedureTime_75th_percentile": 2082,
"splitProcedureTime_90th_percentile": 2082,
"splitProcedureTime_95th_percentile": 2082,
"splitProcedureTime_98th_percentile": 2082,
"splitProcedureTime_99th_percentile": 2082,
"splitProcedureTime_99.9th_percentile": 2082
},
was:
Many of the split related metrics like following are present RS side :
"SplitTime_num_ops": 0,
"SplitTime_min": 0,
"SplitTime_max": 0,
"SplitTime_mean": 0,
"SplitTime_25th_percentile": 0,
"SplitTime_median": 0,
"SplitTime_75th_percentile": 0,
"SplitTime_90th_percentile": 0,
"SplitTime_95th_percentile": 0,
"SplitTime_98th_percentile": 0,
"SplitTime_99th_percentile": 0,
"SplitTime_99.9th_percentile": 0,
Value of these will always be 0 since Split is happening Master side and there
is no Metrics update.
> Many split related metrics were present RS side but after split is moved to
> Master, these metrics are lost.
> -----------------------------------------------------------------------------------------------------------
>
> Key: HBASE-23996
> URL: https://issues.apache.org/jira/browse/HBASE-23996
> Project: HBase
> Issue Type: Improvement
> Components: metrics
> Affects Versions: 2.2.3
> Reporter: Sanjeet Nishad
> Assignee: Sanjeet Nishad
> Priority: Minor
> Attachments: HBASE-23996.001.patch
>
>
> Many of the split related metrics like following are present RS side :
> "SplitTime_num_ops": 0,
> "SplitTime_min": 0,
> "SplitTime_max": 0,
> "SplitTime_mean": 0,
> "SplitTime_25th_percentile": 0,
> "SplitTime_median": 0,
> "SplitTime_75th_percentile": 0,
> "SplitTime_90th_percentile": 0,
> "SplitTime_95th_percentile": 0,
> "SplitTime_98th_percentile": 0,
> "SplitTime_99th_percentile": 0,
> "SplitTime_99.9th_percentile": 0,
> Value of these will always be 0 since Split is happening Master side and
> there is no Metrics update.
>
>
> Update 1: After the fix, JMX is like this :
>
> {
> "name": "Hadoop:service=HBase,name=Master,sub=Procedure",
> "modelerType": "Master,sub=Procedure",
> "tag.Context": "master",
> "tag.Hostname": "abc",
> "numMasterWALs": 0,
> "splitProcedure_RequestCount": 1,
> "splitProcedure_FailedCount": 0,
> "splitProcedure_SuccessCount": 1,
> "splitProcedureTime_num_ops": 1,
> "splitProcedureTime_min": 2082,
> "splitProcedureTime_max": 2082,
> "splitProcedureTime_mean": 2082,
> "splitProcedureTime_25th_percentile": 2082,
> "splitProcedureTime_median": 2082,
> "splitProcedureTime_75th_percentile": 2082,
> "splitProcedureTime_90th_percentile": 2082,
> "splitProcedureTime_95th_percentile": 2082,
> "splitProcedureTime_98th_percentile": 2082,
> "splitProcedureTime_99th_percentile": 2082,
> "splitProcedureTime_99.9th_percentile": 2082
> },
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