Swap space (almost) full

 
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Old 02-28-2015
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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