[Gluster-devel] io-cache exceeding cache-size value

Gordan Bobic gordan at bobich.net
Fri Mar 6 11:46:15 UTC 2009


I'd rather like to know the same thing. After a 5 days of near-idle use,
the rootfs glusterfs daemon, with no performance translators, expands to
over 2GB of RAM, which gets impractical. Under heavy use I'd have to reboot
the machine every couple of hours to keep the memory usage under control.

>From the figures I can see, the memory leaks by about 80MB per pass in the
kernel compile test I mentioned. That's just 50 passes (let's call it about
an hour's testing) to use up 4GB of RAM.

Any work-around suggestions would be greatly appreciated.

Gordan

On Wed, 4 Mar 2009 11:22:18 -0800, Dan Parsons <dparsons at nyip.net> wrote:
> Any update on this? Was my debugging information helpful? Any status
update
> at all would be greatly appreciated.
> 
> Dan
> 
> 
> 2009/2/24 Amar (ಅಮರ್ ತುಂಬಳ್ಳಿ) <amarts at gmail.com>
> 
>> Thanks for this data, Dan and Gorman.
>>
>> This should help us a lot.
>>
>> Regards,
>> Amar
>>
>> 2009/2/24 Gordan Bobic <gordan at bobich.net>
>>
>> Just after mounting:
>>>
>>> top:
>>>  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
>>>  4605 root      20   0 51348 2368 1296 S    0  0.1   0:00.08 glusterfs
>>>
>>> # kill -s SIGUSR1 4605
>>> Arena 0:
>>> system bytes     =     479232
>>> in use bytes     =     258832
>>> Total (incl. mmap):
>>> system bytes     =    1466368
>>> in use bytes     =    1245968
>>> max mmap regions =          5
>>> max mmap bytes   =    1122304
>>>
>>> After compiling the kernel:
>>> # make clean; make dep; make -j32 all
>>>
>>> top:
>>>  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
>>>  4605 root      20   0  202m  97m 1316 S    0  2.5   2:42.09 glusterfs
>>>
>>> # kill -s SIGUSR1 4605
>>> Arena 0:
>>> system bytes     =   26423296
>>> in use bytes     =   25972704
>>> Arena 1:
>>> system bytes     =   74113024
>>> in use bytes     =   73516560
>>> Total (incl. mmap):
>>> system bytes     =  101523456
>>> in use bytes     =  100476400
>>> max mmap regions =          5
>>> max mmap bytes   =    1122304
>>>
>>> # ./pmap 4605
>>> glusterfs(4605)
>>> 00400000 (24 KB)       r-xp (09:02 442904105)    /usr/sbin/glusterfsd
>>> 00606000 (4 KB)        rw-p (09:02 442904105)    /usr/sbin/glusterfsd
>>> 00607000 (25804 KB)    rw-p (00:00 0)        [heap]
>>> 40000000 (4 KB)        ---p (00:00 0)
>>> 40001000 (8192 KB)     rw-p (00:00 0)
>>> 40801000 (4 KB)        ---p (00:00 0)
>>> 40802000 (8192 KB)     rw-p (00:00 0)
>>> 3a38600000 (176 KB)    r-xp (09:02 442904212)
>>> /usr/lib64/libglusterfs.so.0.0.0
>>> 3a3862c000 (2048 KB)   ---p (09:02 442904212)
>>> /usr/lib64/libglusterfs.so.0.0.0
>>> 3a3882c000 (4 KB)      rw-p (09:02 442904212)
>>> /usr/lib64/libglusterfs.so.0.0.0
>>> 3a3882d000 (72 KB)     rw-p (00:00 0)
>>> 3d4c800000 (104 KB)    r-xp (09:02 1194229765)     /lib64/ld-2.5.so
>>> 3d4ca1a000 (4 KB)      r--p (09:02 1194229765)     /lib64/ld-2.5.so
>>> 3d4ca1b000 (4 KB)      rw-p (09:02 1194229765)     /lib64/ld-2.5.so
>>> 3d4cc00000 (1320 KB)   r-xp (09:02 1194229772)     /lib64/libc-2.5.so
>>> 3d4cd4a000 (2048 KB)   ---p (09:02 1194229772)     /lib64/libc-2.5.so
>>> 3d4cf4a000 (16 KB)     r--p (09:02 1194229772)     /lib64/libc-2.5.so
>>> 3d4cf4e000 (4 KB)      rw-p (09:02 1194229772)     /lib64/libc-2.5.so
>>> 3d4cf4f000 (20 KB)     rw-p (00:00 0)
>>> 3d4d000000 (8 KB)      r-xp (09:02 1194229776)     /lib64/libdl-2.5.so
>>> 3d4d002000 (2048 KB)   ---p (09:02 1194229776)     /lib64/libdl-2.5.so
>>> 3d4d202000 (4 KB)      r--p (09:02 1194229776)     /lib64/libdl-2.5.so
>>> 3d4d203000 (4 KB)      rw-p (09:02 1194229776)     /lib64/libdl-2.5.so
>>> 3d4dc00000 (84 KB)     r-xp (09:02 1194229786)     /lib64/
>>> libpthread-2.5.so
>>> 3d4dc15000 (2044 KB)   ---p (09:02 1194229786)     /lib64/
>>> libpthread-2.5.so
>>> 3d4de14000 (4 KB)      r--p (09:02 1194229786)     /lib64/
>>> libpthread-2.5.so
>>> 3d4de15000 (4 KB)      rw-p (09:02 1194229786)     /lib64/
>>> libpthread-2.5.so
>>> 3d4de16000 (16 KB)     rw-p (00:00 0)
>>> 3d4e400000 (28 KB)     r-xp (09:02 1194229788)     /lib64/librt-2.5.so
>>> 3d4e407000 (2048 KB)   ---p (09:02 1194229788)     /lib64/librt-2.5.so
>>> 3d4e607000 (4 KB)      r--p (09:02 1194229788)     /lib64/librt-2.5.so
>>> 3d4e608000 (4 KB)      rw-p (09:02 1194229788)     /lib64/librt-2.5.so
>>> 2aaaaaaab000 (28 KB)   r-xp (09:02 443222345)
>>> /usr/lib64/glusterfs/2.0.0rc1/transport/socket.so.0.0.0
>>> 2aaaaaab2000 (2044 KB) ---p (09:02 443222345)
>>> /usr/lib64/glusterfs/2.0.0rc1/transport/socket.so.0.0.0
>>> 2aaaaacb1000 (8 KB)    rw-p (09:02 443222345)
>>> /usr/lib64/glusterfs/2.0.0rc1/transport/socket.so.0.0.0
>>> 2aaaaacb3000 (576 KB)  rw-p (00:00 0)
>>> 2aaaaad43000 (8 KB)    r-xp (09:02 443222303)
>>> /usr/lib64/glusterfs/2.0.0rc1/auth/addr.so.0.0.0
>>> 2aaaaad45000 (2044 KB) ---p (09:02 443222303)
>>> /usr/lib64/glusterfs/2.0.0rc1/auth/addr.so.0.0.0
>>> 2aaaaaf44000 (4 KB)    rw-p (09:02 443222303)
>>> /usr/lib64/glusterfs/2.0.0rc1/auth/addr.so.0.0.0
>>> 2aaaaaf4e000 (40 KB)   r-xp (09:02 1194229787)
>>> /lib64/libnss_files-2.5.so
>>> 2aaaaaf58000 (2044 KB) ---p (09:02 1194229787)
>>> /lib64/libnss_files-2.5.so
>>> 2aaaab157000 (4 KB)    r--p (09:02 1194229787)
>>> /lib64/libnss_files-2.5.so
>>> 2aaaab158000 (4 KB)    rw-p (09:02 1194229787)
>>> /lib64/libnss_files-2.5.so
>>> 2aaaac000000 (72380 KB)  rw-p (00:00 0)
>>> 2aaab06af000 (58692 KB)  ---p (00:00 0)
>>> 2b4ac185b000 (8 KB)    rw-p (00:00 0)
>>> 2b4ac1866000 (404 KB)  rw-p (00:00 0)
>>> 2b4ac18cb000 (104 KB)  r-xp (09:02 443252818)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/protocol/client.so.0.0.0
>>> 2b4ac18e5000 (2048 KB) ---p (09:02 443252818)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/protocol/client.so.0.0.0
>>> 2b4ac1ae5000 (8 KB)    rw-p (09:02 443252818)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/protocol/client.so.0.0.0
>>> 2b4ac1ae7000 (64 KB)   r-xp (09:02 443252834)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/storage/posix.so.0.0.0
>>> 2b4ac1af7000 (2044 KB) ---p (09:02 443252834)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/storage/posix.so.0.0.0
>>> 2b4ac1cf6000 (8 KB)    rw-p (09:02 443252834)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/storage/posix.so.0.0.0
>>> 2b4ac1cf8000 (28 KB)   r-xp (09:02 443252764)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/features/locks.so.0.0.0
>>> 2b4ac1cff000 (2048 KB) ---p (09:02 443252764)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/features/locks.so.0.0.0
>>> 2b4ac1eff000 (4 KB)    rw-p (09:02 443252764)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/features/locks.so.0.0.0
>>> 2b4ac1f00000 (108 KB)  r-xp (09:02 443252823)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/protocol/server.so.0.0.0
>>> 2b4ac1f1b000 (2044 KB) ---p (09:02 443252823)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/protocol/server.so.0.0.0
>>> 2b4ac211a000 (8 KB)    rw-p (09:02 443252823)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/protocol/server.so.0.0.0
>>> 2b4ac211c000 (176 KB)  r-xp (09:02 443222352)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/cluster/afr.so.0.0.0
>>> 2b4ac2148000 (2048 KB) ---p (09:02 443222352)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/cluster/afr.so.0.0.0
>>> 2b4ac2348000 (12 KB)   rw-p (09:02 443222352)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/cluster/afr.so.0.0.0
>>> 2b4ac234b000 (56 KB)   r-xp (09:02 443252786)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/mount/fuse.so.0.0.0
>>> 2b4ac2359000 (2044 KB) ---p (09:02 443252786)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/mount/fuse.so.0.0.0
>>> 2b4ac2558000 (8 KB)    rw-p (09:02 443252786)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/mount/fuse.so.0.0.0
>>> 2b4ac255a000 (116 KB)  r-xp (09:02 442904974)
>>>  /usr/lib64/libfuse.so.2.7.4
>>> 2b4ac2577000 (2048 KB) ---p (09:02 442904974)
>>>  /usr/lib64/libfuse.so.2.7.4
>>> 2b4ac2777000 (8 KB)    rw-p (09:02 442904974)
>>>  /usr/lib64/libfuse.so.2.7.4
>>> 7fffe923a000 (84 KB)   rw-p (00:00 0)        [stack]
>>> 7fffe93fe000 (8 KB)    r-xp (00:00 0)        [vdso]
>>> ffffffffff600000 (4 KB)  r-xp (00:00 0)      [vsyscall]
>>> mapped:   207760 KB writable/private: 115848 KB shared: 0 KB
>>>
>>> And again:
>>> # make clean; make dep; make -j32 all
>>>
>>> top:
>>>  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
>>>  4605 root      20   0  266m 192m 1316 S    0  4.9   5:26.57 glusterfs
>>>
>>> # kill -s SIGUSR1 4605
>>>
>>> Arena 0:
>>> system bytes     =   26423296
>>> in use bytes     =   25972784
>>> Arena 1:
>>> system bytes     =  173174784
>>> in use bytes     =  172023232
>>> Total (incl. mmap):
>>> system bytes     =  200585216
>>> in use bytes     =  198983152
>>> max mmap regions =          5
>>> max mmap bytes   =    1122304
>>>
>>> # ./pmap 4605
>>> glusterfs(4605)
>>> 00400000 (24 KB)       r-xp (09:02 442904105)    /usr/sbin/glusterfsd
>>> 00606000 (4 KB)        rw-p (09:02 442904105)    /usr/sbin/glusterfsd
>>> 00607000 (25804 KB)    rw-p (00:00 0)        [heap]
>>> 40000000 (4 KB)        ---p (00:00 0)
>>> 40001000 (8192 KB)     rw-p (00:00 0)
>>> 40801000 (4 KB)        ---p (00:00 0)
>>> 40802000 (8192 KB)     rw-p (00:00 0)
>>> 3a38600000 (176 KB)    r-xp (09:02 442904212)
>>> /usr/lib64/libglusterfs.so.0.0.0
>>> 3a3862c000 (2048 KB)   ---p (09:02 442904212)
>>> /usr/lib64/libglusterfs.so.0.0.0
>>> 3a3882c000 (4 KB)      rw-p (09:02 442904212)
>>> /usr/lib64/libglusterfs.so.0.0.0
>>> 3a3882d000 (72 KB)     rw-p (00:00 0)
>>> 3d4c800000 (104 KB)    r-xp (09:02 1194229765)     /lib64/ld-2.5.so
>>> 3d4ca1a000 (4 KB)      r--p (09:02 1194229765)     /lib64/ld-2.5.so
>>> 3d4ca1b000 (4 KB)      rw-p (09:02 1194229765)     /lib64/ld-2.5.so
>>> 3d4cc00000 (1320 KB)   r-xp (09:02 1194229772)     /lib64/libc-2.5.so
>>> 3d4cd4a000 (2048 KB)   ---p (09:02 1194229772)     /lib64/libc-2.5.so
>>> 3d4cf4a000 (16 KB)     r--p (09:02 1194229772)     /lib64/libc-2.5.so
>>> 3d4cf4e000 (4 KB)      rw-p (09:02 1194229772)     /lib64/libc-2.5.so
>>> 3d4cf4f000 (20 KB)     rw-p (00:00 0)
>>> 3d4d000000 (8 KB)      r-xp (09:02 1194229776)     /lib64/libdl-2.5.so
>>> 3d4d002000 (2048 KB)   ---p (09:02 1194229776)     /lib64/libdl-2.5.so
>>> 3d4d202000 (4 KB)      r--p (09:02 1194229776)     /lib64/libdl-2.5.so
>>> 3d4d203000 (4 KB)      rw-p (09:02 1194229776)     /lib64/libdl-2.5.so
>>> 3d4dc00000 (84 KB)     r-xp (09:02 1194229786)     /lib64/
>>> libpthread-2.5.so
>>> 3d4dc15000 (2044 KB)   ---p (09:02 1194229786)     /lib64/
>>> libpthread-2.5.so
>>> 3d4de14000 (4 KB)      r--p (09:02 1194229786)     /lib64/
>>> libpthread-2.5.so
>>> 3d4de15000 (4 KB)      rw-p (09:02 1194229786)     /lib64/
>>> libpthread-2.5.so
>>> 3d4de16000 (16 KB)     rw-p (00:00 0)
>>> 3d4e400000 (28 KB)     r-xp (09:02 1194229788)     /lib64/librt-2.5.so
>>> 3d4e407000 (2048 KB)   ---p (09:02 1194229788)     /lib64/librt-2.5.so
>>> 3d4e607000 (4 KB)      r--p (09:02 1194229788)     /lib64/librt-2.5.so
>>> 3d4e608000 (4 KB)      rw-p (09:02 1194229788)     /lib64/librt-2.5.so
>>> 2aaaaaaab000 (28 KB)   r-xp (09:02 443222345)
>>> /usr/lib64/glusterfs/2.0.0rc1/transport/socket.so.0.0.0
>>> 2aaaaaab2000 (2044 KB) ---p (09:02 443222345)
>>> /usr/lib64/glusterfs/2.0.0rc1/transport/socket.so.0.0.0
>>> 2aaaaacb1000 (8 KB)    rw-p (09:02 443222345)
>>> /usr/lib64/glusterfs/2.0.0rc1/transport/socket.so.0.0.0
>>> 2aaaaacb3000 (576 KB)  rw-p (00:00 0)
>>> 2aaaaad43000 (8 KB)    r-xp (09:02 443222303)
>>> /usr/lib64/glusterfs/2.0.0rc1/auth/addr.so.0.0.0
>>> 2aaaaad45000 (2044 KB) ---p (09:02 443222303)
>>> /usr/lib64/glusterfs/2.0.0rc1/auth/addr.so.0.0.0
>>> 2aaaaaf44000 (4 KB)    rw-p (09:02 443222303)
>>> /usr/lib64/glusterfs/2.0.0rc1/auth/addr.so.0.0.0
>>> 2aaaaaf4e000 (40 KB)   r-xp (09:02 1194229787)
>>> /lib64/libnss_files-2.5.so
>>> 2aaaaaf58000 (2044 KB) ---p (09:02 1194229787)
>>> /lib64/libnss_files-2.5.so
>>> 2aaaab157000 (4 KB)    r--p (09:02 1194229787)
>>> /lib64/libnss_files-2.5.so
>>> 2aaaab158000 (4 KB)    rw-p (09:02 1194229787)
>>> /lib64/libnss_files-2.5.so
>>> 2aaaac000000 (169120 KB)   rw-p (00:00 0)
>>> 2aaab6528000 (27488 KB)  ---p (00:00 0)
>>> 2b4ac185b000 (8 KB)    rw-p (00:00 0)
>>> 2b4ac1866000 (404 KB)  rw-p (00:00 0)
>>> 2b4ac18cb000 (104 KB)  r-xp (09:02 443252818)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/protocol/client.so.0.0.0
>>> 2b4ac18e5000 (2048 KB) ---p (09:02 443252818)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/protocol/client.so.0.0.0
>>> 2b4ac1ae5000 (8 KB)    rw-p (09:02 443252818)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/protocol/client.so.0.0.0
>>> 2b4ac1ae7000 (64 KB)   r-xp (09:02 443252834)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/storage/posix.so.0.0.0
>>> 2b4ac1af7000 (2044 KB) ---p (09:02 443252834)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/storage/posix.so.0.0.0
>>> 2b4ac1cf6000 (8 KB)    rw-p (09:02 443252834)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/storage/posix.so.0.0.0
>>> 2b4ac1cf8000 (28 KB)   r-xp (09:02 443252764)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/features/locks.so.0.0.0
>>> 2b4ac1cff000 (2048 KB) ---p (09:02 443252764)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/features/locks.so.0.0.0
>>> 2b4ac1eff000 (4 KB)    rw-p (09:02 443252764)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/features/locks.so.0.0.0
>>> 2b4ac1f00000 (108 KB)  r-xp (09:02 443252823)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/protocol/server.so.0.0.0
>>> 2b4ac1f1b000 (2044 KB) ---p (09:02 443252823)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/protocol/server.so.0.0.0
>>> 2b4ac211a000 (8 KB)    rw-p (09:02 443252823)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/protocol/server.so.0.0.0
>>> 2b4ac211c000 (176 KB)  r-xp (09:02 443222352)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/cluster/afr.so.0.0.0
>>> 2b4ac2148000 (2048 KB) ---p (09:02 443222352)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/cluster/afr.so.0.0.0
>>> 2b4ac2348000 (12 KB)   rw-p (09:02 443222352)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/cluster/afr.so.0.0.0
>>> 2b4ac234b000 (56 KB)   r-xp (09:02 443252786)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/mount/fuse.so.0.0.0
>>> 2b4ac2359000 (2044 KB) ---p (09:02 443252786)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/mount/fuse.so.0.0.0
>>> 2b4ac2558000 (8 KB)    rw-p (09:02 443252786)
>>> /usr/lib64/glusterfs/2.0.0rc1/xlator/mount/fuse.so.0.0.0
>>> 2b4ac255a000 (116 KB)  r-xp (09:02 442904974)
>>>  /usr/lib64/libfuse.so.2.7.4
>>> 2b4ac2577000 (2048 KB) ---p (09:02 442904974)
>>>  /usr/lib64/libfuse.so.2.7.4
>>> 2b4ac2777000 (8 KB)    rw-p (09:02 442904974)
>>>  /usr/lib64/libfuse.so.2.7.4
>>> 7fffe923a000 (84 KB)   rw-p (00:00 0)        [stack]
>>> 7fffe93fe000 (8 KB)    r-xp (00:00 0)        [vdso]
>>> ffffffffff600000 (4 KB)  r-xp (00:00 0)      [vsyscall]
>>> mapped:   273296 KB writable/private: 212588 KB shared: 0 KB
>>>
>>> I hope this is useful.
>>>
>>> Gordan
>>>
>>> Amar Tumballi (bulde) wrote:
>>>
>>>> Hi Gordan and Dan,
>>>>
>>>> It would help me a lot if its possible for you to get the info as
>>>> described below,
>>>>
>>>> compile glusterfs like
>>>>
>>>> bash# make clean > /dev/null
>>>> bash# make CFLAGS="-g -O0 -DDEBUG" > /dev/null
>>>> bash# make install
>>>>
>>>> run the process which consumes memory (mostly client process) like
>>>> below:
>>>>
>>>> bash# glusterfs <any argument you give generally> -N
>>>> <this process will run in foreground now>
>>>>
>>>> Open another terminal
>>>>
>>>> bash# ps aux | grep glusterfs
>>>> bash# kill -s SIGUSR1 <pid of glusterfs -N process>
>>>> <Check in other terminal for memory usage stats>
>>>>
>>>> bash# <run your application over glusterfs as you do till you get high
>>>> memory usage of glusterfs.. >
>>>> bash# kill -s SIGUSR1 <pid of glusterfs -N process>
>>>> <Check the stat in another terminal>
>>>>
>>>> bash# echo 3 > /proc/sys/vm/drop_caches
>>>> bash# kill -s SIGUSR1 <pid of glusterfs -N process>
>>>> <Check the stat in another terminal>
>>>>
>>>> Even after dropping caches, if 'in use bytes =' in malloc stats shows
a
>>>> high value, then it is a leak. If its showing less, but just 'system
>>>> bytes =
>>>> ' is a high value, this means glusterfs is not really consuming high
>>>> memory,
>>>> but the problem is really in the memory allocation segments.
>>>>
>>>> Regards,
>>>> Amar
>>>>
>>>> NOTE: 'malloc_stats' will be printed to 'stdout' if we enable -DDEBUG
>>>> while compiling glusterfs, as it hits performance badly otherwise.
>>>>
>>>>
>>>> 2009/2/23 Gordan Bobic <gordan at bobich.net <mailto:gordan at bobich.net>>
>>>>
>>>>    Dan Parsons wrote:
>>>>
>>>>        I'm having an issue with glusterfs exceeding its cache-size
>>>>        value. Right now I have it set to 4000MB and I've seen it climb
>>>>        as high as 4800MB. If I set it to 5000, I've seen it go as high
>>>>        as 6000MB. This is a problem because it causes me to set the
>>>>        value very low so that my apps don't get pushed into swap. Is
>>>>        there any way to fix this? To get it to stick to the limit I
set
>>>>        and not exceed?
>>>>
>>>>
>>>>    It's possible you are running into the same memory leak that I'm
>>>>    seeing, and I'm not using io-cache or any other performance
>>>>    translators at all. With rootfs on Gluster, doing a kernel compile
>>>>    (kernel source tree being on NFS, so this won't be contributing to
>>>>    the bloat, hopefully) makes the glusterfsd bloat by about 80MB per
>>>>    pass, and never frees it.
>>>>
>>>>    Gordan
>>>>
>>>>
>>>>    _______________________________________________
>>>>    Gluster-devel mailing list
>>>>    Gluster-devel at nongnu.org <mailto:Gluster-devel at nongnu.org>
>>>>    http://lists.nongnu.org/mailman/listinfo/gluster-devel
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Amar Tumballi
>>>> Gluster/GlusterFS Hacker
>>>> [bulde on #gluster/irc.gnu.org <http://irc.gnu.org>]
>>>> http://www.zresearch.com - Commoditizing Super Storage!
>>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> Gluster-devel mailing list
>>> Gluster-devel at nongnu.org
>>> http://lists.nongnu.org/mailman/listinfo/gluster-devel
>>>
>>
>>
>>
>> --
>> Amar Tumballi
>> Gluster/GlusterFS Hacker
>> [bulde on #gluster/irc.gnu.org]
>> http://www.zresearch.com - Commoditizing Super Storage!
>>
>> _______________________________________________
>> Gluster-devel mailing list
>> Gluster-devel at nongnu.org
>> http://lists.nongnu.org/mailman/listinfo/gluster-devel
>>
>>





More information about the Gluster-devel mailing list