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From Shawn Heisey <apa...@elyograg.org>
Subject Re: CDCR How to recover from Corrupted transaction log
Date Fri, 06 Jan 2017 18:43:47 GMT
On 1/6/2017 10:09 AM, Webster Homer wrote:
> This happened while testing and was not in a production system. So we
> just deleted both collections and recreated them after fixing the root
> cause. If this had been a production system that would not have been
> acceptable. What is the best way to recover from a problem like this?
> Stop cdcr and delete the tlog files?

What was the root cause?  Need to know that before anyone can tell you
whether or not you've run into a bug.

If it was the problem you've separately described where CDCR logging
filled up your disk ... handling that gracefully in a program is very
difficult.  It's possible, but there's very little incentive for anyone
to attempt it.  Lucene and Solr have a general requirement of plenty of
free disk space (enough for the index to triple in size temporarily)
just for normal operation, so coding for disk space exhaustion isn't
likely to happen.  Server monitoring should send an alarm when disk
space gets low so you can fix it before it causes real problems.

Thanks,
Shawn


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