Swap space (almost) full Post: 302936812

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Homework and Emergencies Emergency UNIX and Linux Support Swap space (almost) full Post 302936812 by solaris_1977 on Saturday 28th of February 2015 03:27:35 AM

02-28-2015

Registered User

Swap space (almost) full

Hello,
This is RHEL 5.7. swap is almost full, but I am not sure, what to release and how to release space. This is production server so I would like to try all possible options before reboot.

Code:

[root@tudcol10 ~]# top
top - 00:18:26 up 327 days,  7:01,  3 users,  load average: 0.16, 0.21, 0.18
Tasks: 782 total,   1 running, 781 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.1%us,  0.1%sy,  0.0%ni, 99.8%id,  0.1%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:  49322952k total, 35302516k used, 14020436k free,  1986316k buffers
Swap: 52428116k total, 52424792k used,     3324k free,  3224040k cached

[root@tudcol10 ~]# free -m
             total       used       free     shared    buffers     cached
Mem:         48166      34480      13686          0       1941       3148
-/+ buffers/cache:      29390      18776
Swap:        51199      51196          3
[root@tudcol10 ~]# pidof memcached

[root@tudcol10 ~]# cat /proc/meminfo
MemTotal:     49322952 kB
MemFree:      14006976 kB
Buffers:       1988464 kB
Cached:        3224596 kB
SwapCached:     524352 kB
Active:       29330340 kB
Inactive:      4358960 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     49322952 kB
LowFree:      14006976 kB
SwapTotal:    52428116 kB
SwapFree:         3324 kB
Dirty:            6848 kB
Writeback:           0 kB
AnonPages:    27986200 kB
Mapped:         280616 kB
Slab:          1237248 kB
PageTables:     251032 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  77089592 kB
Committed_AS: 113543976 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    301576 kB
VmallocChunk: 34359435251 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB
[root@tudcol10 ~]#

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LEARN ABOUT LINUX

free

FREE(1) 							Linux User's Manual							   FREE(1)

NAME

       free - Display amount of free and used memory in the system

SYNOPSIS

       free [-b|-k|-m|-g] [-c count] [-l] [-o] [-t] [-s delay] [-V]

DESCRIPTION

       free  displays  the  total  amount of free and used physical and swap memory in the system, as well as the buffers used by the kernel.  The
       shared memory column should be ignored; it is obsolete.

   OPTIONS
       -b     Display the amount of memory in bytes.

       -c count
	      Display the result count times.  Requires the -s option.

       -g     Display the amount of memory in gigabytes.

       -k     Display the amount of memory in kilobytes. This is the default.

       -l     Show detailed low and high memory statistics.

       -m     Display the amount of memory in megabytes.

       -o     Display the output in old format, the only difference being this option will disable the display of the "buffer adjusted" line.

       -s     Continuously display the result delay seconds apart. You may actually specify any floating point number for delay, usleep(3) is used
	      for microsecond resolution delay times.

       -t     Display a line showing the column totals.

       -V     Display version information.

FILES

       /proc/meminfo memory information

AUTHORS

       Written by Brian Edmonds.

       Send bug reports to <albert@users.sf.net>

SEE ALSO

       ps(1), slabtop(1), top(1), vmstat(8).

Cohesive Systems						    5 Oct 2009								   FREE(1)

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