Rbd and bonnie++ problems

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Hello,

I've been working to deploy ceph recently and have been conducting some performance tests and have ran into some problems. I've created an rbd image, mapped it on a client and put a file system on it. I've tried with both ext4 and xfs to which the same results occur. After a while the system running bonnie will lock up leaving some kernel messages on the console and requires a hard reset. This has occurred on two different machines, one was a monitor and the other was a plain client.


My setup: 5 osds and 3 monitors (2 monitors are on osd machines). Replica is set to 3 on the pool that my image is stored and the cluster was healthy at the start. I am using the 0.56 packages for ubuntu.

Any ideas on what is causing the system to lockup/panic?

Thanks,

-Trevor Adams
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