Having a memory issue with Gluster 3.12.4 and not sure how to troubleshoot. I don't *think* this is expected behavior. This is on an updated CentOS 7 box. The setup is a simple two node replicated layout where the two nodes act as both server and client. The volume in question: Volume Name: GlusterWWW Type: Replicate Volume ID: 8e9b0e79-f309-4d9b-a5bb-45d065faaaa3 Status: Started Snapshot Count: 0 Number of Bricks: 1 x 2 = 2 Transport-type: tcp Bricks: Brick1: vs1dlan.mydomain.com:/glusterfs_bricks/brick1/www Brick2: vs2dlan.mydomain.com:/glusterfs_bricks/brick1/www Options Reconfigured: nfs.disable: on cluster.favorite-child-policy: mtime transport.address-family: inet I had some other performance options in there, (increased cache-size, md invalidation, etc) but stripped them out in an attempt to isolate the issue. Still got the problem without them. The volume currently contains over 1M files. When mounting the volume, I get (among other things) a process as such: /usr/sbin/glusterfs --volfile-server=localhost --volfile-id=/GlusterWWW /var/www This process begins with little memory, but then as files are accessed in the volume the memory increases. I setup a script that simply reads the files in the volume one at a time (no writes). It's been running on and off about 12 hours now and the resident memory of the above process is already at 7.5G and continues to grow slowly. If I stop the test script the memory stops growing, but does not reduce. Restart the test script and the memory begins slowly growing again. This is obviously a contrived app environment. With my intended application load it takes about a week or so for the memory to get high enough to invoke the oom killer. Is there potentially something misconfigured here? Thanks, Dan Ragle daniel@xxxxxxxxxxxxxx |
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