@Erick Erickson Thanks for your feedback and support.
segments* file is missing from /solr/solr-6.4.1/server/solr/coreStore_shard1_replica1/data/index directory. Erick: Is that directory the one you expect for that replica? This is a sanity check, as there's no reason it would change magically. Answer: I am not sure about this. I am very new to solr. index folder contains all my indexes or data on which we do search. After last reboot of server we encountered this error. coreStore_shard1_replica1 is the only folder we have and as far as I know we do not have another replica. Erick: How much extra room is there on the disk? Disk full situations might _possibly_ explain it, although that's doubtful. There is no issue with the free disk space on the partition, we still have few TB's of disk space available. Is there any other configuration which I can share here which will be helpful to fix the issue? Thank you for all your help. Mahesh -- Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html