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https://issues.apache.org/jira/browse/CASSANDRA-3466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13147070#comment-13147070
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Jonas Borgström commented on CASSANDRA-3466:
--------------------------------------------
Brandon, you're right. After commenting out those two lines I can no longer
reproduce the hint delivery problem.
The AssertionError is still there though and I managed to reproduce it with my
two node setup.
I'll attach a tarball with my config, DEBUG-level log files and data
directories shortly.
What I did was basically:
# Start a new cluster with a patched 1.0.2 and create keyspace and column
family.
# Bring down node2, trigger hints on node1
# Bring up node2, notice that hints are delivered, YAY!
# Bring down node1, trigger hints on node2
# Bring up node1, noticed AssertionError in log file for node1
(node1/system.log:2036)
To me it looks like the assertionError on node1 is triggered when node2
connects to deliver its hints.
> Hinted handoff not working after rolling upgrade from 0.8.7 to 1.0.2
> --------------------------------------------------------------------
>
> Key: CASSANDRA-3466
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3466
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 1.0.0
> Reporter: Jonas Borgström
> Assignee: Brandon Williams
> Labels: hintedhandoff
> Fix For: 1.0.3
>
>
> While testing rolling upgrades from 0.8.7 to 1.0.2 on a test cluster I've
> noticed that hinted hand-off didn't always work properly. Hints generated on
> an upgraded node does not seem to be delivered to other newly upgraded nodes
> once they rejoin the ring. They only way I've found to get a node to deliver
> its hints is to restart it.
> Here's some steps to reproduce this issue:
> 1. Install cassandra 0.8.7 on node1 and node2 using default settings.
> 2. Create keyspace foo with {replication_factor: 2}. Create column family bar
> 3. Shutdown node2
> 4. Insert data into bar and verify that HintsColumnFamily on node2 contains
> hints
> 5. Start node2 and verify that hinted handoff is performed and
> HintsColumnFamily becomes empty again.
> 6. Upgrade and restart node1
> 7. Shutdown node2
> 8. Insert data into bar and verify that HintsColumnFamily on node2 contains
> hints
> 9. Upgrade and start node2
> 10. Notice that hinted handoff is *not* performed when "node2" comes back.
> (Only if node1 is restarted)
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