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From 曹志富 <cao.zh...@gmail.com>
Subject system-hints compaction all the time
Date Sun, 21 Jun 2015 16:05:51 GMT
the logger like this :


INFO  [CompactionExecutor:501] 2015-06-21 21:42:36,306
CompactionTask.java:140 - Compacting
[SSTableReader(path='/home/ant/apache-cassandra-2.1.6/bin/../data/data/system/hints/system-hints-ka-365-Data.db')]
INFO  [CompactionExecutor:501] 2015-06-21 21:42:37,782
CompactionTask.java:270 - Compacted 1 sstables to
[bin/../data/data/system/hints/system-hints-ka-366,].  18,710,207 bytes to
18,710,207 (~100% of original) in 1,476ms = 12.089054MB/s.  11 total
partitions merged to 11.  Partition merge counts were {1:11, }
INFO  [CompactionExecutor:502] 2015-06-21 21:52:37,784
CompactionTask.java:140 - Compacting
[SSTableReader(path='/home/ant/apache-cassandra-2.1.6/bin/../data/data/system/hints/system-hints-ka-366-Data.db')]
INFO  [CompactionExecutor:502] 2015-06-21 21:52:39,223
CompactionTask.java:270 - Compacted 1 sstables to
[bin/../data/data/system/hints/system-hints-ka-367,].  18,710,207 bytes to
18,710,207 (~100% of original) in 1,438ms = 12.408515MB/s.  11 total
partitions merged to 11.  Partition merge counts were {1:11, }
INFO  [CompactionExecutor:503] 2015-06-21 22:02:39,224
CompactionTask.java:140 - Compacting
[SSTableReader(path='/home/ant/apache-cassandra-2.1.6/bin/../data/data/system/hints
/system-hints-ka-367-Data.db')]
INFO  [CompactionExecutor:503] 2015-06-21 22:02:40,742
CompactionTask.java:270 - Compacted 1 sstables to
[bin/../data/data/system/hints/system-hints-ka-368,].  18,710,207 byte
s to 18,710,207 (~100% of original) in 1,517ms = 11.762323MB/s.  11 total
partitions merged to 11.  Partition merge counts were {1:11, }
INFO  [CompactionExecutor:504] 2015-06-21 22:12:40,743
CompactionTask.java:140 - Compacting
[SSTableReader(path='/home/ant/apache-cassandra-2.1.6/bin/../data/data/system/hints
/system-hints-ka-368-Data.db')]
INFO  [CompactionExecutor:504] 2015-06-21 22:12:42,262
CompactionTask.java:270 - Compacted 1 sstables to
[bin/../data/data/system/hints/system-hints-ka-369,].  18,710,207 byte
s to 18,710,207 (~100% of original) in 1,518ms = 11.754574MB/s.  11 total
partitions merged to 11.  Partition merge counts were {1:11, }
INFO  [CompactionExecutor:505] 2015-06-21 22:22:42,264
CompactionTask.java:140 - Compacting
[SSTableReader(path='/home/ant/apache-cassandra-2.1.6/bin/../data/data/system/hints
/system-hints-ka-369-Data.db')]
INFO  [CompactionExecutor:505] 2015-06-21 22:22:43,750
CompactionTask.java:270 - Compacted 1 sstables to
[bin/../data/data/system/hints/system-hints-ka-370,].  18,710,207 byte
s to 18,710,207 (~100% of original) in 1,486ms = 12.007701MB/s.  11 total
partitions merged to 11.  Partition merge counts were {1:11, }

C* 2.1.6

--------------------------------------
Ranger Tsao

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