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From "Brandon Williams (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-4435) hints compaction loop over same sstable
Date Wed, 11 Jul 2012 21:49:35 GMT
Brandon Williams created CASSANDRA-4435:
-------------------------------------------

             Summary: hints compaction loop over same sstable
                 Key: CASSANDRA-4435
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4435
             Project: Cassandra
          Issue Type: Bug
          Components: Core
    Affects Versions: 1.2
            Reporter: Brandon Williams


Noticed the following while testing something else:

{noformat}
INFO 22:14:48,496 Completed flushing /var/lib/cassandra/data/system/hints/system-hints-ia-1-Data.db
(109645 bytes) for commitlog position ReplayPosition(segmentId=9372773011543415, position=30358488)
 INFO 22:14:48,498 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-1-Data.db')]
 INFO 22:14:48,500 SSTables for user defined compaction are already being compacted.
 INFO 22:14:48,500 Finished hinted handoff of 16893 rows to endpoint /10.179.64.227
 INFO 22:14:48,658 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-2-Data.db,].
 109,645 to 899 (~0% of original) bytes for 1 keys at 0.005392MB/s.  Time: 159ms.
 INFO 22:14:48,660 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-2-Data.db')]
 INFO 22:14:48,668 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-3-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.107169MB/s.  Time: 8ms.
 INFO 22:14:48,669 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-3-Data.db')]
 INFO 22:14:48,679 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-4-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.095261MB/s.  Time: 9ms.
 INFO 22:14:48,680 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-4-Data.db')]
 INFO 22:14:48,697 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-5-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.050433MB/s.  Time: 17ms.
 INFO 22:14:48,698 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-5-Data.db')]
 INFO 22:14:48,714 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-6-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.053585MB/s.  Time: 16ms.
 INFO 22:14:48,715 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-6-Data.db')]
 INFO 22:14:48,722 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-7-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.122479MB/s.  Time: 7ms.
 INFO 22:14:48,723 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-7-Data.db')]
 INFO 22:14:48,736 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-8-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.065950MB/s.  Time: 13ms.
 INFO 22:14:48,737 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-8-Data.db')]
 INFO 22:14:48,744 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-9-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.122479MB/s.  Time: 7ms.
 INFO 22:14:48,745 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-9-Data.db')]
 INFO 22:14:48,753 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-10-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.122479MB/s.  Time: 7ms.
 INFO 22:14:48,754 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-10-Data.db')]
 INFO 22:14:48,761 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-11-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.122479MB/s.  Time: 7ms.
 INFO 22:14:48,762 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-11-Data.db')]
 INFO 22:14:48,775 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-12-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.065950MB/s.  Time: 13ms.
 INFO 22:14:48,776 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-12-Data.db')]
 INFO 22:14:48,783 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-13-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.122479MB/s.  Time: 7ms.
 INFO 22:14:48,784 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-13-Data.db')]
 INFO 22:14:48,792 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-14-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.122479MB/s.  Time: 7ms.
 INFO 22:14:48,793 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-14-Data.db')]
 INFO 22:14:48,800 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-15-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.122479MB/s.  Time: 7ms.
 INFO 22:14:48,802 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-15-Data.db')]
 INFO 22:14:48,809 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-16-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.122479MB/s.  Time: 7ms.
 INFO 22:14:48,810 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-16-Data.db')]
 INFO 22:14:48,826 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-17-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.053585MB/s.  Time: 16ms.
 INFO 22:14:48,827 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-17-Data.db')]
 INFO 22:14:48,834 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-18-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.142892MB/s.  Time: 6ms.
 INFO 22:14:48,835 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-18-Data.db')]
 INFO 22:14:48,842 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-19-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.142892MB/s.  Time: 6ms.
 INFO 22:14:48,842 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-19-Data.db')]
 INFO 22:14:48,850 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-20-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.142892MB/s.  Time: 6ms.
 INFO 22:14:48,850 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-20-Data.db')]
 INFO 22:14:48,867 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-21-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.053585MB/s.  Time: 16ms.
 INFO 22:14:48,868 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-21-Data.db')]
 INFO 22:14:48,876 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-22-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.142892MB/s.  Time: 6ms.
 INFO 22:14:48,877 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-22-Data.db')]
 INFO 22:14:48,884 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-23-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.122479MB/s.  Time: 7ms.
 INFO 22:14:48,885 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-23-Data.db')]
 INFO 22:14:48,893 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-24-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.107169MB/s.  Time: 8ms.
 INFO 22:14:48,895 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-24-Data.db')]
 INFO 22:14:48,901 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-25-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.142892MB/s.  Time: 6ms.
 INFO 22:14:48,902 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-25-Data.db')]
 INFO 22:14:48,910 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-26-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.142892MB/s.  Time: 6ms.
 INFO 22:14:48,910 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-26-Data.db')]
 INFO 22:14:48,926 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-27-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.057157MB/s.  Time: 15ms.
 INFO 22:14:48,930 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-27-Data.db')]
 INFO 22:14:48,938 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-28-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.107169MB/s.  Time: 8ms.
 INFO 22:14:48,943 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-28-Data.db')]
 INFO 22:14:48,949 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-29-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.142892MB/s.  Time: 6ms.
 INFO 22:14:48,950 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-29-Data.db')]
 INFO 22:14:48,966 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-30-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.053585MB/s.  Time: 16ms.
 INFO 22:14:48,967 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-30-Data.db')]
 INFO 22:14:48,974 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-31-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.142892MB/s.  Time: 6ms.
 INFO 22:14:48,974 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-31-Data.db')]
 INFO 22:14:48,980 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-32-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.142892MB/s.  Time: 6ms.
 INFO 22:14:48,981 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-32-Data.db')]
 INFO 22:14:48,988 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-33-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.142892MB/s.  Time: 6ms.
 INFO 22:14:48,989 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-33-Data.db')]
 INFO 22:14:48,995 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-34-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.171471MB/s.  Time: 5ms.
 INFO 22:14:48,995 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-34-Data.db')]
 INFO 22:14:49,002 Compacted to [/var/lib/cassandra/data/system/hints/system-hints-ia-35-Data.db,].
 899 to 899 (~100% of original) bytes for 1 keys at 0.171471MB/s.  Time: 5ms.
 INFO 22:14:49,002 Compacting [SSTableReader(path='/var/lib/cassandra/data/system/hints/system-hints-ia-35-Data.db')]
{noformat}

After this, the loop stopped.  It also did not occur on another member which delivered hints,
so it may not be easy to replicate.  I suspect something related to CASSANDRA-3442 caused
this, though the odd thing is there shouldn't even be a tombstone left.

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