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Hudson commented on PHOENIX-4460: --------------------------------- SUCCESS: Integrated in Jenkins build Phoenix-master #1897 (See [https://builds.apache.org/job/Phoenix-master/1897/]) PHOENIX-4460 High GC / RS shutdown when we use select query with IN (tdsilva: rev 9d8be0e9214ba3680a81c399c5da316c1b91c99b) * (edit) phoenix-core/src/main/java/org/apache/phoenix/coprocessor/BaseScannerRegionObserver.java > High GC / RS shutdown when we use select query with "IN" clause using 4.10 > phoenix client on 4.13 phoenix server > ---------------------------------------------------------------------------------------------------------------- > > Key: PHOENIX-4460 > URL: https://issues.apache.org/jira/browse/PHOENIX-4460 > Project: Phoenix > Issue Type: Bug > Reporter: James Taylor > Assignee: James Taylor > Priority: Blocker > Fix For: 4.14.0, 4.13.2 > > Attachments: PHOENIX-4460-v2.patch, PHOENIX-4460.patch > > > We were able to reproduce the High GC / RS shutdown / phoenix KeyRange query > high object count issue on cluster today. > Main observation is that this is reproducible when firing lots of query > select from xyz where abc in (?, ?, ...) of this type with 4.10 phoenix > client hitting 4.13 phoenix on HBase server side > (4.10 client/4.10 server works fine, 4.13 client with 4.13 server works fine) > We wrote a loader client (attached) with the below table/query , upserted > ~100 million rows and fired the query in parallel using 4-5 loader clients > with 16 threads each > {code} > TABLE: = "CREATE TABLE " + TABLE_NAME_TEMPLATE > + " (\n" + " TestKey varchar(255) PRIMARY KEY, TestVal1 varchar(200), > TestVal2 varchar(200), " + "TestValue varchar(10000))"; > QUERY: = "SELECT * FROM " + TABLE_NAME_TEMPLATE + " WHERE TestKey IN (?, ?, > ?, ?, ?, ?, ?, ?, ?, ?)" > {code} > After running this client immediately within a min or two we see the > phoenix.query.KeyRange object count immediately going up to several lakhs and > keeps on increasing continuously. This count doesn't seem to come down even > after shutting down the clients > {code} > -bash-4.1$ ~/current/bigdata-util/tools/Linux/jdk/jdk1.8.0_102_x64/bin/jmap > -histo:live 90725 | grep KeyRange > 47: 274852 6596448 org.apache.phoenix.query.KeyRange > 1851: 2 48 org.apache.phoenix.query.KeyRange$Bound > 2434: 1 24 [Lorg.apache.phoenix.query.KeyRange$Bound; > 3411: 1 16 org.apache.phoenix.query.KeyRange$1 > 3412: 1 16 org.apache.phoenix.query.KeyRange$2 > {code} > After some time we also started seeing High GC issues and RegionServers > crashing > Experiment Summary: > - 4.13 client/4.13 Server --- Issue not reproducible (we do see KeyRange > count increasing upto few 100's) > - 4.10 client/4.10 Server --- Issue not reproducible (we do see KeyRange > count increasing upto few 100's) > - 4.10 client/4.13 Server --- Issue reproducible as described above -- This message was sent by Atlassian JIRA (v6.4.14#64029)