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From Elliott Clark <ecl...@apache.org>
Subject Re: can read operation be performed during the execution of major compaction
Date Mon, 20 Oct 2014 18:26:44 GMT
No read operations are not blocked by any compactions.

Compaction will swap in it's newly created file for any subsequent read
requests. Any read requests that come in during the compaction will be
answered from the files already there and the memstore.

On Mon, Oct 20, 2014 at 8:52 AM, sahanashankar <sahanashankar90@gmail.com>

> Hello,
> I am trying to understand the working of major compaction and i am
> wondering
> if a read operation can be performed while the major compaction process is
> running on HBase. Will the read operation be queued and start after major
> compaction has finished executing? or can both execute together?
> To be more general, will only the particular region be blocked during major
> compaction or will the entire RegionServer hosting the region be blocked ?
> Thanks in advance
> Sahana
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> Sent from the HBase User mailing list archive at Nabble.com.

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