[jira] [Created] (CASSANDRA-12685) Add retry to hints dispatcher

["Dikang Gu (JIRA)" <ji...@apache.org>]

Dikang Gu created CASSANDRA-12685:
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             Summary: Add retry to hints dispatcher
                 Key: CASSANDRA-12685
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12685
             Project: Cassandra
          Issue Type: Improvement
            Reporter: Dikang Gu
            Assignee: Dikang Gu
            Priority: Minor
             Fix For: 3.x


Problem: I often see timeout in hints replay, I find there is no retry for hints replay, I think it would be great to add some retry logic for timeout exception.

{code}
2016-09-20_07:32:01.16610 INFO  07:32:01 [HintedHandoff:3]: Started hinted handoff for host: 859af100-5d45-42bd-92f5-2bc78822158b with IP: /2401:db00:12:30d7:face:0:39:0
2016-09-20_07:58:49.29983 INFO  07:58:49 [HintedHandoff:3]: Timed out replaying hints to /2401:db00:12:30d7:face:0:39:0; aborting (55040 delivered)
2016-09-20_07:58:49.29984 INFO  07:58:49 [HintedHandoff:3]: Enqueuing flush of hints: 15962349 (0%) on-heap, 2049808 (0%) off-heap
2016-09-20_08:02:17.55072 INFO  08:02:17 [HintedHandoff:1]: Started hinted handoff for host: 859af100-5d45-42bd-92f5-2bc78822158b with IP: /2401:db00:12:30d7:face:0:39:0
2016-09-20_08:05:45.25723 INFO  08:05:45 [HintedHandoff:1]: Timed out replaying hints to /2401:db00:12:30d7:face:0:39:0; aborting (7936 delivered)
2016-09-20_08:05:45.25725 INFO  08:05:45 [HintedHandoff:1]: Enqueuing flush of hints: 2301605 (0%) on-heap, 259744 (0%) off-heap
2016-09-20_08:12:19.92910 INFO  08:12:19 [HintedHandoff:2]: Started hinted handoff for host: 859af100-5d45-42bd-92f5-2bc78822158b with IP: /2401:db00:12:30d7:face:0:39:0
2016-09-20_08:51:44.72191 INFO  08:51:44 [HintedHandoff:2]: Timed out replaying hints to /2401:db00:12:30d7:face:0:39:0; aborting (83456 delivered)
{code}



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