iain wright created HBASE-9046:
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Summary: Some regions keep using an older version of coprocessor
Key: HBASE-9046
URL: https://issues.apache.org/jira/browse/HBASE-9046
Project: HBase
Issue Type: Bug
Components: Coprocessors
Affects Versions: 0.94.8
Environment: FreeBSD 8.2-RELEASE FreeBSD 8.2-RELEASE #0 r220198: Thu
Mar 31 21:46:45 PDT 2011 amd64
java version "1.6.0_07"
Diablo Java(TM) SE Runtime Environment (build 1.6.0_07-b02)
Diablo Java HotSpot(TM) 64-Bit Server VM (build 10.0-b23, mixed mode)
hbase: 0.94.8, r1485407
hadoop: 1.0.4, r1393290
Reporter: iain wright
Priority: Minor
My team and another user from the mailing list have run into an issue where
replacing the coprocessor jar in HDFS and reloading the table does not load the
latest jar. It may load the latest version on some percentage of RS but not all
of them.
This may be a config oversight or a lack of understanding of a caching
mechanism that has a purge capability, but I thought I would log it here for
confirmation.
Workaround is to name the coprocessor JAR uniquely, place in HDFS, and re-load
the table using the new jar's name.
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