- Aug 30, 2007
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buffalo-pull authored
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- Aug 07, 2007
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scjody authored
version -> 1.7.90
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- Jul 30, 2007
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Mikhail Pershin authored
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- Apr 17, 2007
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Andreas Dilger authored
Description: data loss for recently-modified files Details : In some cases it is possible that recently written or created files may not be written to disk in a timely manner (this should normally be within 30s unless client IO load is very high). The problem appears as zero-length files or files that are a multiple of 1MB in size after a client crash or client eviction that are missing data at the end of the file. This problem is more likely to be hit on clients where files are repeatedly created and unlinked in the same directory, clients have a large amount of RAM, have many CPUs, the filesystem has many OSTs, the clients are rebooted frequently, and/or the files are not accessed by other nodes after being written. The presence of the problem can be detected by looking at /proc/sys/fs/inode-state. If the first number (nr_inodes) is smaller than the second (nr_unused) then dirty files will not be flushed automatically to disk. "sync; sleep 10" should be run several times on the node before unmounting it to update Lustre (this is also safe to run on nodes without this problem). There is also a related kernel bug in the RHEL4 4 2.6.9 kernel that can cause this same problem, so customers using that kernel also need to update the kernel in addition to Lustre. In order to properly fix this bug, the RHEL3 2.4.21 kernel is also updated. It is normal that files written just before a client crash (less than 30s) may not yet have been flushed to disk, even for local filesystems. i=green(original patch), i=shadow b=12181, b=12203
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- Mar 26, 2007
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Bobi Jam authored
b=11090 Description: Be more lenient with linux clients before warning (by Andreas) Details: This fixes Linux clients so they allow one major Lustre release update before they warn. It also makes the setting of the version a lot easier by using OBD_OCD_VERSION(0,0,1,32) instead of having to calculate it directly.
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- Mar 06, 2007
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Nathan Rutman authored
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- Feb 21, 2007
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Nathan Rutman authored
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- Feb 10, 2007
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Nathan Rutman authored
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- Mar 29, 2005
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buffalo-pull authored
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- Dec 19, 2004
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jacob authored
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