Dear all, I set up an 2.0-alpha2 system and planned to populate it with 100 million files. While populating it however, the MDS ran out of memory, the OOM kicked in, killed some processes, and all ended in a kernel panic.
So I resetted the MDS and remounted the MDT. After around 30 seconds (no client access yet), the memory gets eaten up again, reproducing the very same scenario mentioned above. If I unmount the MDT 'in time', the memory gets freed up (so I am pretty sure it's Lustre and not something else). I had seen this with 2.0-alpha1 already, hence I upgraded to 2.0-alpha2. When using 2.0-alpha1, the system had around 10 million files and was not accessed at all when this behavior showed up. The system I am using for my tests has 1 MDS, 1 client and 3 OSSs. The MDS has only 2 GB of memory, but this should only impact performance, not stability, right? Any comments welcome, I am also happy to provide more details. Cheers, Arne
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