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https://issues.apache.org/jira/browse/YARN-6389?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15953307#comment-15953307
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Rohith Sharma K S commented on YARN-6389:
-----------------------------------------
I verified in HBase-1.2.5, still the same issue. I took help from HBase
committers and found a difference behavior with HBase-1.2.5. Tried from HBase
Shell to create simple table and added 2 versions of values. And the result is
surprising. In the below code snippet, scanning of table with maxversion is not
working if we set max_version during create table. This seems to be an issue
from HBase.
{code}
create 't1', {NAME => 'f1', VERSIONS => 100}
put 't2','row','f1:c','value',10000
put 't1','row','f1:c','value2',100111
hbase(main):005:0> scan 't1'
ROW COLUMN+CELL
row column=f1:c, timestamp=100111,
value=value2
row column=f1:c, timestamp=10000,
value=value
1 row(s) in 0.0260 seconds
hbase(main):007:0> scan 't1', { VERSIONS => 1}
ROW COLUMN+CELL
row column=f1:c, timestamp=100111,
value=value2
row column=f1:c, timestamp=10000,
value=value
1 row(s) in 0.0060 seconds
{code}
But one doubt is HBase-1.1.5 with old ATS is working fine and with new ATS i.e
yarn-5355 is not working.
> [ATSv2] metricslimit query parameter do not work
> ------------------------------------------------
>
> Key: YARN-6389
> URL: https://issues.apache.org/jira/browse/YARN-6389
> Project: Hadoop YARN
> Issue Type: Bug
> Components: timelinereader
> Reporter: Rohith Sharma K S
> Assignee: Varun Saxena
> Priority: Critical
>
> It is observed that metricslimit query parameter do not work. And also by
> default metricslimit is set to 1, all the metrics versions are retrieved.
> One thing I noticed that even though GenericEntityReader is setting
> Scan.setMaxVersions(), all the metrics are retrieved. It appears something
> wrong in TimelieneWritter or the way hbase filters is being used.
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