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https://issues.apache.org/jira/browse/HBASE-14869?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15084542#comment-15084542
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Hudson commented on HBASE-14869:
--------------------------------
SUCCESS: Integrated in HBase-1.3 #481 (See
[https://builds.apache.org/job/HBase-1.3/481/])
HBASE-14869 Better request latency and size histograms. (Vikas (larsh: rev
fba9e49dcfe4eaf430b2804c908789071596432f)
*
hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/wal/MetricsEditsReplaySourceImpl.java
*
hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/DynamicMetricsRegistry.java
*
hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/master/MetricsMasterFilesystemSourceImpl.java
*
hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/master/MetricsSnapshotSourceImpl.java
*
hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/MutableRangeHistogram.java
*
hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/MutableHistogram.java
*
hbase-hadoop2-compat/src/test/java/org/apache/hadoop/hbase/test/MetricsAssertHelperImpl.java
*
hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionSourceImpl.java
*
hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/MutableTimeHistogram.java
*
hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/master/balancer/MetricsBalancerSourceImpl.java
*
hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/wal/MetricsWALSourceImpl.java
*
hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/thrift/MetricsThriftServerSourceImpl.java
*
hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/master/MetricsAssignmentManagerSourceImpl.java
*
hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerSourceImpl.java
*
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestRegionServerMetrics.java
*
hbase-hadoop2-compat/src/main/java/org/apache/hadoop/hbase/ipc/MetricsHBaseServerSourceImpl.java
*
hbase-hadoop-compat/src/test/java/org/apache/hadoop/hbase/test/MetricsAssertHelper.java
*
hbase-hadoop2-compat/src/main/java/org/apache/hadoop/metrics2/lib/MutableSizeHistogram.java
> Better request latency and size histograms
> ------------------------------------------
>
> Key: HBASE-14869
> URL: https://issues.apache.org/jira/browse/HBASE-14869
> Project: HBase
> Issue Type: Brainstorming
> Reporter: Lars Hofhansl
> Assignee: Vikas Vishwakarma
> Fix For: 2.0.0, 1.3.0, 0.98.17
>
> Attachments: 14869-test-0.98.txt, 14869-v1-0.98.txt,
> 14869-v1-2.0.txt, 14869-v2-0.98.txt, 14869-v2-2.0.txt, 14869-v3-0.98.txt,
> 14869-v4-0.98.txt, 14869-v5-0.98.txt, 14869-v6-0.98.txt, AppendSizeTime.png,
> Get.png
>
>
> I just discussed this with a colleague.
> The get, put, etc, histograms that each region server keeps are somewhat
> useless (depending on what you want to achieve of course), as they are
> aggregated and calculated by each region server.
> It would be better to record the number of requests in certainly latency
> bands in addition to what we do now.
> For example the number of gets that took 0-5ms, 6-10ms, 10-20ms, 20-50ms,
> 50-100ms, 100-1000ms, > 1000ms, etc. (just as an example, should be
> configurable).
> That way we can do further calculations after the fact, and answer questions
> like: How often did we miss our SLA? Percentage of requests that missed an
> SLA, etc.
> Comments?
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