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https://issues.apache.org/jira/browse/CASSANDRA-3496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13150750#comment-13150750
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Jackson Chung commented on CASSANDRA-3496:
------------------------------------------
my test case (which seems difference from Ben's?):
1) put a break between the releaseReference and releaseReference
2) insert to a CF, flush, insert again, flush, now you have 2 sstables
3) force major compaction
with the following break/sleep in the test:
{code}
sstable.releaseReference();
try
{
logger.debug("xxxxxxxxxxxx zz for 10s");
Thread.sleep(7000);
}
catch (InterruptedException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
long bytesOnDisk = sstable.bytesOnDisk();
logger.debug("xxxxxxxxxx wake up -------- size to remove from
livesize" + bytesOnDisk);
liveSize.addAndGet(-bytesOnDisk);
{code}
the following is observed in the log:
{noformat}
DEBUG [CompactionExecutor:6] 2011-11-15 12:29:43,050 DataTracker.java (line
345) removing /var/lib/cassandra/data/testsize/testcfsize-hb-1 from list of
files tracked for testsize.testcfsize
DEBUG [CompactionExecutor:6] 2011-11-15 12:29:43,050 SSTableReader.java (line
742) Marking /var/lib/cassandra/data/testsize/testcfsize-hb-1-Data.db compacted
DEBUG [CompactionExecutor:6] 2011-11-15 12:29:43,050 MmappedSegmentedFile.java
(line 139) All segments have been unmapped successfully
DEBUG [CompactionExecutor:6] 2011-11-15 12:29:43,051 MmappedSegmentedFile.java
(line 139) All segments have been unmapped successfully
DEBUG [CompactionExecutor:6] 2011-11-15 12:29:43,051 DataTracker.java (line
353) xxxxxxxxxxxx zz for 10s
DEBUG [NonPeriodicTasks:1] 2011-11-15 12:29:43,051 FileUtils.java (line 51)
Deleting testcfsize-hb-1-Index.db
DEBUG [NonPeriodicTasks:1] 2011-11-15 12:29:43,051 FileUtils.java (line 51)
Deleting testcfsize-hb-1-Filter.db
DEBUG [NonPeriodicTasks:1] 2011-11-15 12:29:43,052 FileUtils.java (line 51)
Deleting testcfsize-hb-1-Digest.sha1
DEBUG [NonPeriodicTasks:1] 2011-11-15 12:29:43,052 FileUtils.java (line 51)
Deleting testcfsize-hb-1-Statistics.db
DEBUG [NonPeriodicTasks:1] 2011-11-15 12:29:43,052 SSTable.java (line 144)
Deleted /var/lib/cassandra/data/testsize/testcfsize-hb-1
DEBUG [CompactionExecutor:6] 2011-11-15 12:29:50,051 DataTracker.java (line
363) xxxxxxxxxx wake up -------- size to remove from livesize0
{noformat}
cfstats:
Column Family: testcfsize
SSTable count: 1
Space used (live): 14395
Space used (total): 5491
> Load from `nodetool ring` does not update after cleanup.
> --------------------------------------------------------
>
> Key: CASSANDRA-3496
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3496
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 1.0.2
> Reporter: Benjamin Coverston
> Assignee: Sylvain Lebresne
> Attachments: 3496.txt
>
>
> Repro:
> Bring up a node.
> Insert 1M rows:
> 127.0.0.1 datacenter1 rack1 Up Normal 406.92 MB
> 100.00% 77747037169725419723056812679314618801
> (Already looks wrong, 406.92 is higher than I'm used to seeing from a single
> run of stress)
> Bootstrap a second node into the cluster:
> 162877269496252595336256012556853953561
> 127.0.0.1 datacenter1 rack1 Up Normal 407.03 MB 49.96%
> 77747037169725419723056812679314618801
> 127.0.0.2 datacenter1 rack1 Up Normal 157.91 MB 50.04%
> 162877269496252595336256012556853953561
> Cleanup
> 162877269496252595336256012556853953561
> 127.0.0.1 datacenter1 rack1 Up Normal 551.2 MB 49.96%
> 77747037169725419723056812679314618801
> 127.0.0.2 datacenter1 rack1 Up Normal 157.91 MB 50.04%
> 162877269496252595336256012556853953561
> Looks like each operation that adds and removes SSTables only adds to the
> total and doesn't remove the old sstables from the total size count.
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