Our storage server threw it's toys of the pram. We got it back, and
everything bar ElasticSearch is singing sweetly again.
On start, we get an IndexFormatTooNewException. Not many get that one, but
CheckIndex appears to be worth a go, except that also barfs:
sudo java -cp /usr/share/elasticsearch/lib/lucene-core-4.8.1.jar
-ea:org.apache.lucene... org.apache.lucene.index.CheckIndex . -fix
Opening index @ .
ERROR: could not read any segments file in directory
org.apache.lucene.index.IndexFormatTooNewException: Format version is not
1071082519 (needs to be between -2 and -3)
This has rendered our ES service offline. Any suggestions to fix it would
be appreciated, we are uncertain how to proceed otherwise.
ES 1.2.1 from Debian packages. We are just (now) upgrading to 1.4 to see if
this results in some progress.
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