Not really

What version are you on? Do you have pending compactions and no ongoing
compactions?

/Marcus

On Wed, Sep 24, 2014 at 11:35 PM, Donald Smith <
donald.sm...@audiencescience.com> wrote:

>  On one of our nodes we have lots of pending compactions (499).    In the
> past we’ve seen pending compactions go up to 2400 and all the way back down
> again.
>
>
>
> Investigating, I saw warnings such as the following in the logs about
> overlapping SStables and about needing to run “nodetool scrub” on a table.
> Would the overlapping SStables explain the pending compactions?
>
>
>
> WARN [RMI TCP Connection(2)-10.5.50.30] 2014-09-24 09:14:11,207
> LeveledManifest.java (line 154) At level 1,
> SSTableReader(path='/data/data/XYZ/ABC/XYZ-ABC-jb-388233-Data.db')
> [DecoratedKey(-6112875836465333229,
> 3366636664393031646263356234663832383264616561666430383739383738),
> DecoratedKey(-4509284829153070912,
> 3366336562386339376664376633353635333432636662373739626465393636)]
> overlaps
> SSTableReader(path='/data/data/XYZ/ABC/XYZ-ABC_blob-jb-388150-Data.db')
> [DecoratedKey(-4834684725563291584,
> 3366336233366664363664363632666365303664333936336337343566373838),
> DecoratedKey(-4136919579566299218,
> 3366613535646662343235336335633862666530316164323232643765323934)].  This
> could be caused by a bug in Cassandra 1.1.0 .. 1.1.3 or due to the fact
> that you have dropped sstables from another node into the data directory.
> Sending back to L0.  If you didn't drop in sstables, and have not yet run
> scrub, you should do so since you may also have rows out-of-order within an
> sstable
>
>
>
> Thanks
>
>
>
> *Donald A. Smith* | Senior Software Engineer
> P: 425.201.3900 x 3866
> C: (206) 819-5965
> F: (646) 443-2333
> dona...@audiencescience.com
>
>
> [image: AudienceScience]
>
>
>

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