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From Radim Kolar <...@sendmail.cz>
Subject compaction on hintedhandoff is done too early
Date Mon, 14 Nov 2011 13:10:49 GMT
from log output it seems that during hintedhandoff delivery compaction 
is kicked too soon. There needs to be some delay for flusher to write 
sstable.

  INFO [GossipStage:1] 2011-11-14 13:16:03,933 Gossiper.java (line 745) 
InetAddress /*******.99.40 is now UP
  INFO [HintedHandoff:1] 2011-11-14 13:16:15,064 
HintedHandOffManager.java (line 268) Started hinted handoff for token: 
99070591730234615865843651857942052864 with IP: /*****.99.40
  WARN [pool-1-thread-1] 2011-11-14 13:16:18,389 Memtable.java (line 
169) setting live ratio to minimum of 1.0 instead of 0.5454013335736169
  INFO [pool-1-thread-1] 2011-11-14 13:16:18,389 Memtable.java (line 
179) CFS(Keyspace='system', ColumnFamily='HintsColumnFamily') liveRatio 
is 2.3651230775748844 (just-counted was 1.0).  calculation took 10ms for 
492 columns
  INFO [HintedHandoff:1] 2011-11-14 13:16:19,347 ColumnFamilyStore.java 
(line 688) Enqueuing flush of 
Memtable-HintsColumnFamily@258947641(693625/2050635 serialized/live 
bytes, 985 ops)
  INFO [FlushWriter:4] 2011-11-14 13:16:19,348 Memtable.java (line 239) 
Writing Memtable-HintsColumnFamily@258947641(693625/2050635 
serialized/live bytes, 985 ops)
  INFO [CompactionExecutor:9] 2011-11-14 13:16:19,348 
CompactionTask.java (line 238) Nothing to compact in HintsColumnFamily.  
Use forceUserDefinedCompaction if you wish to force compaction of single 
sstables (e.g. for tombstone collection)
  INFO [HintedHandoff:1] 2011-11-14 13:16:19,348 
HintedHandOffManager.java (line 334) Finished hinted handoff of 492 rows 
to endpoint
  INFO [FlushWriter:4] 2011-11-14 13:16:19,365 Memtable.java (line 275) 
Completed flushing 
/usr/local/cassandra/data/system/HintsColumnFamily-hb-2-Data.db (711045 
bytes)

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