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https://issues.apache.org/jira/browse/CASSANDRA-3466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13147016#comment-13147016
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Radim Kolar commented on CASSANDRA-3466:
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Thats true. i did more testing in this area today. Deleted hints sstables from
disk to be sure that no 0.8.x possible hints are there - but they should not be
there anyway because i had snapshot from CF hints truncate around. And i could
not get any hints delivered to second node (no exceptions today).
Thats probably deserves to roll new cassandra version soon, because it is very
important to get hints properly delivered as soon as possible.
> 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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