Why did my Red Hat Storage 2.0 brick die with dict_unserialized errors?

Solution In Progress - Updated -


Red Hat Storage 2.0


A Red Hat Storage 2.0 glusterd process had to be restarted to bring a brick back off line after seeing dict_unserialize errors in the logs.


Upgrade to Red Hat Storage 2.1 or 3.0

Root Cause

There was a known bug where the process would fail when it encountered less than expected buffer sizes when writing.

Diagnostic Steps

When an undersized buffer passed error appears with a glusterfs 3.3.* track as below

/usr/lib64/glusterfs/3.3.0/xlator/protocol/server.so(server_writev+0x24b) [0x7fe26231c3cb]))) 0-dict: undersized buffer passed. available (XXX) < required (YYY)

this is likely the culprit.

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