hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "stack (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-4926) DebugFilter; counts how many KVs skipped before result found, counts storefiles we tripped over
Date Thu, 01 Dec 2011 19:54:40 GMT
DebugFilter; counts how many KVs skipped before result found, counts storefiles we tripped
over
-----------------------------------------------------------------------------------------------

                 Key: HBASE-4926
                 URL: https://issues.apache.org/jira/browse/HBASE-4926
             Project: HBase
          Issue Type: Task
            Reporter: stack


I'm not sure this possible but chatting w/ J-D after he finished helping a crew who had a
slow scan, we need ways to help folks figure out why stuff is slow on the server side.  In
this case, the user had a region that had gigs of deletes in it that had to be skipped before
the scanner got to a value to return so scans looked slow though working 'correctly'.  If
the user could enable a DebugFilter than did counts of what Scans were skipping and size of
data skipped among other things, it might help w/ the situation above -- and perhaps with
others (What else could we count in a filter?)

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message