[SOLR-3924] The solr weakness fault tolerance on ext4

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 3.5
• Fix Version/s: 3.6

Environment

Ubuntu 12.04 LTS, Filesystem is ext4.

• Assignee: Unassigned
• Reporter: shou aoki
• Created: 10/Oct/12 08:29
• Updated: 10/Oct/12 09:04
• Resolved: 10/Oct/12 08:49

Description

In few days ago ours machine (with solr) was crashed.
We rebooted machine and solr, The solr looks like validly behavior.
But, The solr is not valid because following :

• Exists Solr core.
• Exists /tmp/solr directory and /tmp/solr/data/solr_core directory.
• Exists /tmp/solr/solr.xml and exists solr/cores/core tag.
• We can start Solr Server without exception.
• "$ curl http://localhost:8983/solr/solr_core/select?" returns 404 Not Found.

And I found the file of '/tmp/solr/data/solr_core/index/segments.gen' is empty file.
So, I think there is no (or weak) fault tolerance about Solr.

I hope the solr grow up crash-free server.
For example, File handling is atomically as much as possible.