[Moosefs-users] Errors and then "crash"

[Thomas S H. <tha...@gm...>]

This is the second time a chunkserver has issued this type of failure in out
environment, after giving this log message the chunkserver does not crash,
but all files on the chunk become unavailable and it shows %0 usage on the
mfsmaster

Dec  3 14:58:08 localhost mfschunkserver[6969]: testing chunk:
/mnt/moose1/6C/chunk_000000000008F96C_00000001.mfs
Dec  3 14:58:18 localhost mfschunkserver[6969]: testing chunk:
/mnt/moose1/0D/chunk_000000000001BB0D_00000001.mfs
Dec  3 14:58:18 localhost mfschunkserver[6969]: chunk_readcrc:
file:/mnt/moose1/0D/chunk_000000000001BB0D_00000001.mfs - wrong id/version
in header (000000000001BB0D_00000000)
Dec  3 14:58:18 localhost mfschunkserver[6969]: hdd_io_begin:
file:/mnt/moose1/0D/chunk_000000000001BB0D_00000001.mfs - read error:
Unknown error
Dec  3 14:58:28 localhost mfschunkserver[6969]: testing chunk:
/mnt/moose1/0D/chunk_000000000001BB0D_00000001.mfs
Dec  3 14:58:28 localhost mfschunkserver[6969]: chunk_readcrc:
file:/mnt/moose1/0D/chunk_000000000001BB0D_00000001.mfs - wrong id/version
in header (000000000001BB0D_00000000)
Dec  3 14:58:28 localhost mfschunkserver[6969]: hdd_io_begin:
file:/mnt/moose1/0D/chunk_000000000001BB0D_00000001.mfs - read error:
Unknown error
Dec  3 14:58:38 localhost mfschunkserver[6969]: testing chunk:
/mnt/moose1/0D/chunk_000000000001BB0D_00000001.mfs
Dec  3 14:58:38 localhost mfschunkserver[6969]: chunk_readcrc:
file:/mnt/moose1/0D/chunk_000000000001BB0D_00000001.mfs - wrong id/version
in header (000000000001BB0D_00000000)
Dec  3 14:58:38 localhost mfschunkserver[6969]: hdd_io_begin:
file:/mnt/moose1/0D/chunk_000000000001BB0D_00000001.mfs - read error:
Unknown error
Dec  3 14:58:38 localhost mfschunkserver[6969]: 3 errors occurred in 60
seconds on folder: /mnt/moose1/
Dec  3 14:58:39 localhost mfschunkserver[6969]: replicator: hdd_create
status: 21


I am running the prerelease of 1.6.18 on Ubuntu 10.04.

After restarting the chunkserver everything comes back online without
problems.

Any ideas as to what could be causing this?

-Tom Hatch