I have a single node elasticsearch instance ( 0.90 version) running on a single machine ( 8GB RAM, dual core CPU) having RHEL 5.6
After having indexed close to 2 million documents, it runs fine for a few hours and then restarts on its own, wiping out the index in the process. I now need to reindex all the documents again.
Here are the modifications i made to the default elasticsearch.yml file :
indices.fielddata.cache.expire : 5m
I use the elasticsearch service wrapper to start and stop the instance. In the elasticsearch.conf file, i have set the heap size to 2GB :
Any help is diagnosing the problem will be appreciated.