2015.12.19 server. 17 High Load

Reference documents

HDD Monitoring and Analysis tool: Smartctl

Http://linux.cn/article-4682-1.html

1. Receive feedback from colleagues. 17 Connection is very slow

2. View load top find load and CPU utilization too high

3. Restore operations

To close unnecessary Java processes

5. Cause of failure

Java process consumes a lot of resources

6. Late avoidance

To turn off unnecessary services

Other similar failures: top

Load: CPU Utilization: 0.1%

Suspect is a hard drive failure

Check the hard drive health status

1. View hard drive front panel led green Normal
2. Smartctl with Commands
Yum Install Smartmontools
Smartctl-h/DEV/SDA (corresponding disk)

[Email protected] php-5.4.36]# smartctl-h/DEV/SDA
Smartctl 5.43 2012-06-30 r3573 [x86_64-linux-2.6.32-358.el6.x86_64] (local build)
Copyright (C) 2002-12 by Bruce Allen, http://smartmontools.sourceforge.net
SMART Health Status:ok
[Email protected] php-5.4.36]#

2015.12.19 server. 17 High Load