Russ Hatch created CASSANDRA-7602:
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Summary: During rolling upgrade to 1.2 some counters are not found
Key: CASSANDRA-7602
URL: https://issues.apache.org/jira/browse/CASSANDRA-7602
Project: Cassandra
Issue Type: Bug
Environment: java 1.7
Reporter: Russ Hatch
The cassandra dtest for upgrading with RandomPartitioner is showing a potential
issue with counters during a mixed-version upgrade.
The test starts with a 3 node cluster on 1.1 (RF=2).
In turn, the following is performed on each node:
* node gets 25k counter updates distributed across 100 counter cells. (CL=all)
* node is drained and shutdown
* node is updated to 1.2, started up, and upgradesstables is run
* counter values are checked again (CL=one)
The steps above succeed for the first node, but fail on the second node. The
failure isn't because the counters are wrong -- they don't seem to be present
at all.
I tried adding an additional flush before the drain, and this actually seems to
have increased the number of counters not found.
To run the test with dtest/nose:
set PRINT_DEBUG=true
then run nosetests -vs
upgrade_through_versions_test:TestRandomPartitionerUpgrade.upgrade_test_mixed
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