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https://issues.apache.org/jira/browse/TRAFODION-2420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15783067#comment-15783067
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ASF GitHub Bot commented on TRAFODION-2420:
-------------------------------------------
GitHub user selvaganesang opened a pull request:
https://github.com/apache/incubator-trafodion/pull/898
[TRAFODION-2420] RMS enhancements
Introduced a feature in RMS offender to list queries blocked in storage
engine.
This lists queries which are blocked in the storage engine APIs
for more than given number of seconds. The BLOCKED_FOR_SECS denotes how
long the storage engine API is blocked.
The SQL commands to list SE_BLOCKED queries are available at:
$TRAF_HOME/export/limited-support-tools/LSO/se_blocked.sql
Example output is below:
cd $TRAF_HOME/export/limited-support-tools/LSO
./offender -s se_blocked
CURRENT_TIMESTAMP NO_OF_PROCESSES BLOCKED_FOR_SECS QUERY_ID
TABLE_NAME
-------------------------- --------------- ----------------
------------------------------------------------------------
------------------------------
2016-12-28 10:29:43.941455 1 83
MXID11000030514212349680799580002000000000206U3333300_18_S1 TRAFODION.SCH.T022
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/selvaganesang/incubator-trafodion se_offender
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-trafodion/pull/898.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #898
----
commit ce6b44612f3fc19a18314f985853322dd39b66e4
Author: selvaganesang <[email protected]>
Date: 2016-12-28T14:57:49Z
[TRAFODION-2420] RMS enhancements
Introduced a feature to list queries blocked in storage engine
via RMS offender.
This lists queries which are blocked in the storage engine APIs
for more than given number of seconds. The BLOCKED_FOR_SECS denotes how
long the storage engine API is blocked.
The SQL commands to list SE_BLOCKED queries are available at:
$TRAF_HOME/export/limited-support-tools/LSO/se_blocked.sql
Example output is below:
cd $TRAF_HOME/export/limited-support-tools/LSO
./offender -s se_blocked
CURRENT_TIMESTAMP NO_OF_PROCESSES BLOCKED_FOR_SECS QUERY_ID
TABLE_NAME
-------------------------- --------------- ----------------
------------------------------------------------------------
------------------------------
2016-12-28 10:29:43.941455 1 83
MXID11000030514212349680799580002000000000206U3333300_18_S1 TRAFODION.SCH.T022
----
> RMS enhancements
> ----------------
>
> Key: TRAFODION-2420
> URL: https://issues.apache.org/jira/browse/TRAFODION-2420
> Project: Apache Trafodion
> Issue Type: Improvement
> Components: sql-general
> Affects Versions: 2.1-incubating
> Reporter: Selvaganesan Govindarajan
> Assignee: Selvaganesan Govindarajan
>
> Improve RMS to provide the following features/capabilities:
> 1. Currently RMS can list queries that consumed cpu time between two time
> points. However, the calls to storage engine like hbase, hdfs etc are
> blocking and these blocked APIs will not allow the Trafodion SQL engine
> scheduler to detect the cpu time spent during the time the call was blocked.
> Introduce a feature called SE offender (storage engine offender) to list the
> queries that are blocked in storage engine more than a certain duration.
> 2. Remove counters that are no longer updated or needed
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