indexVersion returns multiple results when called

[davidq]

Hi,

We have 5 core masters and 5 core slaves. The main core houses about 85,000
douments, so small, although the content of each document is quite large.
The second core holds the same number of docs but far less - and different -
data.

We reindex all cores every morning and the replication poll is 5 minutues.
The main core takes 15 minutes to reindex (optimize). At some point, an
incomplete index is picked up by the slave and our web site disappears until
the optimize takes place. I know we could increase the poll to 30 minutes
but that would be no guarantee.

Thought we'd sove it by writing a script to get the indexversion, kick off
reindexing and periodically check the current indexversion against the first
- if the same, sleep for 2 minutes and then check again. Once they're
different, do a fetchIndex from the slave.

Works on all the cores except the main one. We get a different indexversion
after two minutes, the slave gets populated with an almost empty index and
the site is out!

All the other cores exhibit the same indexversion. What have we
misunderstood or got wrong?

Regards,

David Q




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Re: indexVersion returns multiple results when called

[davidq]

Hi,

We thought we'd sorted this out but it's come back again.

We're on 4.0GA which I forgot to mention before. We disabled polling on the
slaves and have a PHP script that gets the current version number of the
master, fires a reindex (optimize,clean) and then loops on a sleep(120)
function at which it checks the version number. If the same as original
version, indexing is incomplete so sleep again. If different, in theory,
indexing is complete so do a fetch.

This worked for 3 days but today obviously didn't and we ended up with a
corrupted tiny index on the slave.

Anyone have any clues why the version number is changing?

Regards,

DQ



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