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https://issues.apache.org/jira/browse/CASSANDRA-3733?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13185058#comment-13185058
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Brandon Williams commented on CASSANDRA-3733:
---------------------------------------------
Because the flush isn't blocking:
{noformat}
INFO 16:50:36,248 Started hinted handoff for token:
113427455640312821154458202477256070484 with IP: /10.179.64.227
INFO 16:50:36,265 Enqueuing flush of Memtable-HintsColumnFamily@1721309039(0/0
serialized/live bytes, 1 ops)
INFO 16:50:36,266 Writing Memtable-HintsColumnFamily@1721309039(0/0
serialized/live bytes, 1 ops)
INFO 16:50:36,267 Nothing to compact in HintsColumnFamily. Use
forceUserDefinedCompaction if you wish to force compaction of single sstables
(e.g. for tombstone collection)
INFO 16:50:36,268 Finished hinted handoff of 1 rows to endpoint /10.179.64.227
INFO 16:50:36,272 Completed flushing
/var/lib/cassandra/data/system/HintsColumnFamily-hc-2-Data.db (100 bytes)
{noformat}
> Once a host has been hinted to, log messages for it repeat every 10 mins even
> if no hints are delivered
> -------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-3733
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3733
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.0.7
> Reporter: Brandon Williams
> Priority: Minor
>
> {noformat}
> INFO 15:36:03,977 Started hinted handoff for token:
> 170141183460469231731687303715884105726 with IP: /10.179.111.137
> INFO 15:36:03,978 Finished hinted handoff of 0 rows to endpoint
> /10.179.111.137
> INFO 15:46:31,248 Started hinted handoff for token:
> 170141183460469231731687303715884105726 with IP: /10.179.111.137
> INFO 15:46:31,249 Finished hinted handoff of 0 rows to endpoint
> /10.179.111.137
> INFO 15:56:29,448 Started hinted handoff for token:
> 170141183460469231731687303715884105726 with IP: /10.179.111.137
> INFO 15:56:29,449 Finished hinted handoff of 0 rows to endpoint
> /10.179.111.137
> INFO 16:06:09,949 Started hinted handoff for token:
> 170141183460469231731687303715884105726 with IP: /10.179.111.137
> INFO 16:06:09,950 Finished hinted handoff of 0 rows to endpoint
> /10.179.111.137
> INFO 16:16:21,529 Started hinted handoff for token:
> 170141183460469231731687303715884105726 with IP: /10.179.111.137
> INFO 16:16:21,530 Finished hinted handoff of 0 rows to endpoint
> /10.179.111.137
> {noformat}
> Introduced by CASSANDRA-3554. The problem is that until a compaction on
> hints occurs, tombstones are present causing the isEmpty() check to be false.
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