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From "n0rad (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-11594) Too many open files on directory
Date Mon, 18 Apr 2016 09:24:25 GMT
n0rad created CASSANDRA-11594:
---------------------------------

             Summary: Too many open files on directory
                 Key: CASSANDRA-11594
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11594
             Project: Cassandra
          Issue Type: Bug
          Components: Core
            Reporter: n0rad
            Priority: Critical


I have a 6 nodes cluster in prod in 3 racks.
each node :
- 4Gb commitlogs on 343 files
- 275Gb data on 504 files 

On saturday, 1 node in each rack crash with with too many open files.

lsof -n -p $PID give me 66899 out of 65826 max
it contains 64527 open directories (2371 uniq)


a part of the list :
```
...
java    19076 root 2140r      DIR   8,17      143360 4386718705 /opt/stage2/pod-cassandra-aci-cassandra/rootfs/data/keyspaces/email_logs_query/emails-2d4abd00e9ea11e591199d740e07bd95
java    19076 root 2141r      DIR   8,17      143360 4386718705 /opt/stage2/pod-cassandra-aci-cassandra/rootfs/data/keyspaces/email_logs_query/emails-2d4abd00e9ea11e591199d740e07bd95
java    19076 root 2142r      DIR   8,17      143360 4386718705 /opt/stage2/pod-cassandra-aci-cassandra/rootfs/data/keyspaces/email_logs_query/emails-2d4abd00e9ea11e591199d740e07bd95
java    19076 root 2143r      DIR   8,17      143360 4386718705 /opt/stage2/pod-cassandra-aci-cassandra/rootfs/data/keyspaces/email_logs_query/emails-2d4abd00e9ea11e591199d740e07bd95
java    19076 root 2144r      DIR   8,17      143360 4386718705 /opt/stage2/pod-cassandra-aci-cassandra/rootfs/data/keyspaces/email_logs_query/emails-2d4abd00e9ea11e591199d740e07bd95
java    19076 root 2145r      DIR   8,17      143360 4386718705 /opt/stage2/pod-cassandra-aci-cassandra/rootfs/data/keyspaces/email_logs_query/emails-2d4abd00e9ea11e591199d740e07bd95
java    19076 root 2146r      DIR   8,17      143360 4386718705 /opt/stage2/pod-cassandra-aci-cassandra/rootfs/data/keyspaces/email_logs_query/emails-2d4abd00e9ea11e591199d740e07bd95
java    19076 root 2147r      DIR   8,17      143360 4386718705 /opt/stage2/pod-cassandra-aci-cassandra/rootfs/data/keyspaces/email_logs_query/emails-2d4abd00e9ea11e591199d740e07bd95
java    19076 root 2148r      DIR   8,17      143360 4386718705 /opt/stage2/pod-cassandra-aci-cassandra/rootfs/data/keyspaces/email_logs_query/emails-2d4abd00e9ea11e591199d740e07bd95
java    19076 root 2149r      DIR   8,17      143360 4386718705 /opt/stage2/pod-cassandra-aci-cassandra/rootfs/data/keyspaces/email_logs_query/emails-2d4abd00e9ea11e591199d740e07bd95
java    19076 root 2150r      DIR   8,17      143360 4386718705 /opt/stage2/pod-cassandra-aci-cassandra/rootfs/data/keyspaces/email_logs_query/emails-2d4abd00e9ea11e591199d740e07bd95
java    19076 root 2151r      DIR   8,17      143360 4386718705 /opt/stage2/pod-cassandra-aci-cassandra/rootfs/data/keyspaces/email_logs_query/emails-2d4abd00e9ea11e591199d740e07bd95
java    19076 root 2152r      DIR   8,17      143360 4386718705 /opt/stage2/pod-cassandra-aci-cassandra/rootfs/data/keyspaces/email_logs_query/emails-2d4abd00e9ea11e591199d740e07bd95
java    19076 root 2153r      DIR   8,17      143360 4386718705 /opt/stage2/pod-cassandra-aci-cassandra/rootfs/data/keyspaces/email_logs_query/emails-2d4abd00e9ea11e591199d740e07bd95
java    19076 root 2154r      DIR   8,17      143360 4386718705 /opt/stage2/pod-cassandra-aci-cassandra/rootfs/data/keyspaces/email_logs_query/emails-2d4abd00e9ea11e591199d740e07bd95
java    19076 root 2155r      DIR   8,17      143360 4386718705 /opt/stage2/pod-cassandra-aci-cassandra/rootfs/data/keyspaces/email_logs_query/emails-2d4abd00e9ea11e591199d740e07bd95
...
```





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