Zabbix Lack of free swap alarm Linux online add swap partition

Received Zabbix alarm Lack of free swap space on Zabbix_server

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1. View memory Status

[Email protected] ~]# free-m

Total used free shared buffers Cached

mem:488 450 37 6 6 46

-/+ buffers/cache:397 91

swap:0 0 0

The output of free has a total of four lines, the fourth behavior Swap area information: Total amount of exchange, usage (used) and swap area (free)

2. View disk partition status

[Email protected] ~]# df-h

Filesystem Size used Avail use% mounted on

/DEV/XVDA1 20G 3.8G 15G 21%/

Devtmpfs 237M 0 237M 0%/dev

Tmpfs 245M 0 245M 0%/dev/shm

Tmpfs 245M 4.3M 241M 2%/run

Tmpfs 245M 0 245M 0%/sys/fs/cgroup

3. Create swap Files

[[email protected] ~]# dd If=/dev/zero of=/home/swap bs=1024 count=512000

512000+0 Records in

512000+0 Records out

524288000 bytes (524 MB) copied, 10.8309 s, 48.4 MB/s

4. Create a Swap partition

[Email protected] ~]# Mkswap/home/swap

Setting up Swapspace version 1, size = 511996 KiB

No label, uuid=6ff030ce-898d-4245-b6d5-ee1580c26929

[Email protected] fonts]#/sbin/swapon/home/swap

Swapon:/home/swap:insecure permissions 0644, 0600 suggested.

5. View Free

[Email protected] ~]# free-m

Total used free shared buffers Cached

mem:488 478 10 6 1 78

-/+ buffers/cache:398 90

swap:499 0 499

6. Mounting

[Email protected] ~]# Vi/etc/fstab

#

#/etc/fstab

# Created by Anaconda on Fri Nov 21 18:16:53 2014

#

# Accessible filesystems, by reference, is maintained under '/dev/disk '

# See mans Pages Fstab (5), Findfs (8), mount (8) and/or Blkid (8) for more info

#

UUID=6634633E-001D-43BA-8FAB-202F1DF93339/EXT4 defaults,barrier=0 1 1

uuid=6ff030ce-898d-4245-b6d5-ee1580c26929 swap swap defaults 0 0

~

"/etc/fstab" 10L, 356C written

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Zabbix Lack of free swap alarm Linux online add swap partition