Public bug reported:
Failure occurred in three instances of Amazon EC2 small, happened at the same
time in all three instances.
Servers each carrying a different operating time, one of them more than
48 hours and the other two only 10 hours or less.
Maybe not a bug cachefilesd, may be a bug in the "ephemeral storage" and
keep the cache on this unit, but not sure. Amazon has not reported any
failure on its website.
I bring all the data that I think may be useful.
Ubuntu: 13.04 updated
Linux version 3.8.0-25-generic (buildd@roseapple) (gcc version 4.7.3
(Ubuntu/Linaro 4.7.3-1ubuntu1) ) #37-Ubuntu SMP Thu Jun 6 20:47:07 UTC
2013 (Ubuntu 3.8.0-25.37-generic 3.8.13)
/etc/fstab datas:
nfs-host-server:/nfs/dir1 /exports/dir1 nfs
rsize=32768,wsize=32768,vers=3,fsc,hard,intr,proto=tcp,port=2049,sync,noatime,auto
0 0
nfs-host-server:/nfs/dir2 /exports/dir2 nfs
rsize=32768,wsize=32768,vers=3,fsc,hard,intr,proto=tcp,port=2049,sync,noatime,auto
0 0
# (Is the same nfs server mounted two times, the server has two HD and
different security rules)
/etc/cachefilesd.conf
dir /mnt/
tag mycache
brun 10%
bcull 7%
bstop 3%
frun 10%
fcull 7%
fstop 3%
$mount
/dev/xvdb on /mnt type ext3 (rw,user_xattr,acl)
I install cachefilesd three days ago, in the tests was perfect, if it
happens again try to find more data to find the cause, not currently
know it can be.
** Affects: cachefilesd (Ubuntu)
Importance: Undecided
Status: New
** Tags: aws ec2 ephemeral raring
** Attachment added: "Syslog report"
https://bugs.launchpad.net/bugs/1192751/+attachment/3707648/+files/syslog
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https://bugs.launchpad.net/bugs/1192751
Title:
Kernel BUG at ffffffffa002f0cc - at Amazon EC2 Ubuntu 13.04 - NFS
client
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