Thanks Matthew.
We're running version 1.2.1.
I was actually following the Repair KV Indexes[1] instructions which
triggered the problem. I was doing the repair mostly out of curiosity to
see what it did. I was thinking of using it as a sanity check for Riak
backups.
I assume there's a different sort of repair I can run?
[1] http://docs.basho.com/riak/1.2.1/cookbooks/Repairing-KV-Indexes/
On 11/01/13 12:48, Matthew Von-Maszewski wrote:
What version of Riak?
Likely you need to take the node offline and run repair.
Matthew
On Jan 11, 2013, at 4:50 AM, Shane McEwan <[email protected]> wrote:
G'day!
I posted this to the LevelDB mailing list with little success. Apologies if
you've already seen this from there.
We've started getting errors in a LevelDB LOG file about a missing SST file:
2013/01/10-15:08:12.714525 7fb0767fa700 Compacting 14@0 + 7@1 files
2013/01/10-15:08:25.121147 7fb0767fa700 compacted to: files[ 14 7 50 105 0 0 0 ]
2013/01/10-15:08:25.121488 7fb0767fa700 Delete type=2 #111404
2013/01/10-15:08:25.147976 7fb0767fa700 Compaction error: IO error:
/data/riak/leveldb/902020541790166644828836732692080926193895866368/006558.sst:
No such file or directory
I assume it means we've got an SST file listed in the MANIFEST file that
doesn't exist anymore. The SST in question doesn't exist in any of the
snapshots I have around the time it was likely to have been created.
I saw mention of a bug fixed in the latest LevelDB[1] that could cause what
we're seeing except that we haven't run out of disk space so I'm not sure we've
hit that. I'm less interested in HOW it happened since we've moved to different
hardware since then.
We haven't noticed any missing data in our database (perhaps Riak replicas are
helping there?) and even if there is something missing the nature of our data
means that we can probably live without it.
My question is, can we remove the offending file's entry out of the MANIFEST
file somehow? Or will it sort itself out? Currently our idle test database is
spinning at 100% CPU trying to compact a file that doesn't exist.
[1] https://groups.google.com/forum/#!msg/leveldb/Kc9JxuIUu5A/9P0N9RL4ar8J
Any advice would be greatly appreciated. Thanks!
Shane.
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