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Date: Wed, 5 Oct 2011 18:14:30 +0000 (UTC)
From: "Kannan Muthukkaruppan (Created) (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <205348673.118.1317838470980.JavaMail.tomcat@hel.zones.apache.org>
Subject: [jira] [Created] (HBASE-4542) add filter info to slow query logging
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add filter info to slow query logging
-------------------------------------

                 Key: HBASE-4542
                 URL: https://issues.apache.org/jira/browse/HBASE-4542
             Project: HBase
          Issue Type: Improvement
            Reporter: Kannan Muthukkaruppan


Slow query log doesn't report filter in effect.

For example:
{code}
(operationTooSlow): \
{"processingtimems":3468,"client":"10.138.43.206:40035","timeRange": [0,9223372036854775807],\
"starttimems":1317772005821,"responsesize":42411, \
"class":"HRegionServer","table":"myTable","families":{"CF1":"ALL"]},\
"row":"6c3b8efa132f0219b7621ed1e5c8c70b","queuetimems":0,\
"method":"get","totalColumns":1,"maxVersions":1,"storeLimit":-1}
{code}

the above would suggest that all columns of myTable:CF1 are being requested for the given row. But in reality there could be filters in effect (such as ColumnPrefixFilter, ColumnRangeFilter, TimestampsFilter() etc.). We should enhance the slow query log to capture & report this information.


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