189 8069 5689

OSW的一些改良-创新互联

1. 增加进程运行状态检测,异常时自动重启

成都创新互联,为您提供成都网站建设公司成都网站制作、网站营销推广、网站开发设计,对服务成都宴会酒店设计等多个行业拥有丰富的网站建设及推广经验。成都创新互联网站建设公司成立于2013年,提供专业网站制作报价服务,我们深知市场的竞争激烈,认真对待每位客户,为客户提供赏心悦目的作品。 与客户共同发展进步,是我们永远的责任!

由于osw不是守护进程,因此在停机维护以后,很有可能忘记启动,后续在进行问题分析的时候,缺少了有效的数据,因此可以将osw配置成crontab,这样就避免了主机重启以后采集数据丢失的情况。

[oracle@rac11g1 oswbb]$ cat oswcheck.sh 

#!/bin/sh

######################################################################

# Copyright (c)  2016 by Ducw

# oswcheck.sh

# This program check OSWatcher run status, if not run, start OSWatcher

# oswcheck crontab config

# 1 * * * * /oracle/oswbb/oswcheck.sh > /oracle/oswbb/oswcheck.log 2>/oracle/oswbb/oswcheck.err

######################################################################

OSWRUNFLAG=`ps -ef | grep OSWatcher.sh | grep -v grep | wc -l`

CHECKDATA=`date "+%Y-%m-%d %H:%M:%S"`

if [[ ${OSWRUNFLAG} -eq 1 ]]; then

echo "================================================================================="

echo "OSWatcher is running at "${CHECKDATA}

echo "================================================================================="

echo ""

else

echo "================================================================================="

echo "OSWatcher is not running at "${CHECKDATA}

echo "================================================================================="

echo ""

echo "Begin to start startOSWbb.sh"

cd /oracle/oswbb

nohup ./startOSWbb.sh 10 72 &

fi

配置crontab

[oracle@rac11g1 oswbb]$ crontab -l

1* * * * /oracle/oswbb/oswcheck.sh > /oracle/oswbb/oswcheck.log 2>/oracle/oswbb/oswcheck.err

2. 调整 ps 输出进程信息

  默认情况下,会输出所有的进程信息,针对数据库主机,信息会比较多,每次开sr,巨大的文件上传也是一个问题。因此只输出CPU使用率较高的前100的进程信息或内存使用前100的进程,这样速度就会快很多。当然这也存在某些情况下,丢失部分有用信息。

[oracle@rac11g1 oswbb]$ cat psmemsub.sh

    HP-UX|HI-UX)

UNIX95=1 ps -e -o user,pid,ppid,pri,pcpu,cpu,vsz,sz,wchan,state,etime,args | head -1 >> $1

UNIX95=1 ps -e -o user,pid,pcpu,ppid,pri,cpu,vsz,sz,wchan,state,etime,args | sort -nr -k 3 | head -100 >> $1

3. 新增心跳网卡监控

这段信息来至MOS,心跳网卡的监控在RAC环境中尤为重要。

  设置私网间通讯检查: 

a) 拷贝Exampleprivate.net 为 private.net 到同一个目录下。 

b).在private.net中找到您对应的系统平台,替换下面的private_nodename1 , private_nodename2 为具体的私网IP或者主机名 

traceroute -r -F private_nodename1 

traceroute -r -F private_nodename2 

c). 将private.net中其它的平台部分删除。 

d). 千万不要删除下面的内容: 

rm locks/lock.file 

4. 快速分析某段时间的CPU/内存的使用率

  Linux中的paste命令,可以将多个文件的记录进行拼接,同时显示出来。oswtop的数据形式如下,包含时间信息,以及cpu使用率信息。因此我们可以截取这两部的内容,拼接到一个文件,然后对特定字段进行排序操作。这样就可以帮助我们快速定位负载高的时间点。当然也可以使用java图形工具的形式。只是感觉脚本定制的方式更便捷,也不受环境的约束。

当然这种方法也可以适用于内存等信息的分析。

zzz ***Wed Jan 27 08:53:08 CST 2016

top - 08:53:10 up 9 min,  3 users,  load average: 1.22, 2.01, 1.27

Tasks: 259 total,   2 running, 257 sleeping,   0 stopped,   0 zombie

Cpu(s):  1.0%us,  0.0%sy,  0.0%ni, 99.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

Mem:   4050948k total,  3643476k used,   407472k free,   217272k buffers

Swap:  4095992k total,        0k used,  4095992k free,  1929572k cached

[root@rac11g1 oswtop]# cat rac11g1_top_16.01.27.0800.dat | grep ^zzz > top_time.txt

[root@rac11g1 oswtop]# cat rac11g1_top_16.01.27.0800.dat | grep ^Cpu > top_cpu.txt

[root@rac11g1 oswtop]#  paste -d ' ' top_time.txt top_cpu.txt > result.txt

[root@rac11g1 oswtop]# cat result.txt 

zzz ***Wed Jan 27 08:49:08 CST 2016 Cpu(s):  3.0%us,  1.0%sy,  0.0%ni, 94.1%id,  2.0%wa,  0.0%hi,  0.0%si,  0.0%st

zzz ***Wed Jan 27 08:49:38 CST 2016 Cpu(s):  1.0%us,  1.0%sy,  0.0%ni, 98.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

zzz ***Wed Jan 27 08:50:08 CST 2016 Cpu(s):  2.0%us,  0.0%sy,  0.0%ni, 96.1%id,  0.0%wa,  1.0%hi,  1.0%si,  0.0%st

zzz ***Wed Jan 27 08:50:38 CST 2016 Cpu(s):  0.0%us,  0.0%sy,  0.0%ni,100.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

zzz ***Wed Jan 27 08:51:08 CST 2016 Cpu(s):  1.0%us,  0.0%sy,  0.0%ni, 99.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

zzz ***Wed Jan 27 08:51:38 CST 2016 Cpu(s): 14.0%us,  1.0%sy,  0.0%ni, 85.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

zzz ***Wed Jan 27 08:52:08 CST 2016 Cpu(s):  1.0%us,  0.0%sy,  0.0%ni, 99.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

zzz ***Wed Jan 27 08:52:38 CST 2016 Cpu(s):  1.0%us,  1.9%sy,  0.0%ni, 78.6%id, 17.5%wa,  1.0%hi,  0.0%si,  0.0%st

zzz ***Wed Jan 27 08:53:08 CST 2016 Cpu(s):  1.0%us,  0.0%sy,  0.0%ni, 99.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

zzz ***Wed Jan 27 08:53:38 CST 2016 Cpu(s):  2.0%us,  2.0%sy,  0.0%ni, 95.1%id,  0.0%wa,  1.0%hi,  0.0%si,  0.0%st

zzz ***Wed Jan 27 08:54:09 CST 2016 Cpu(s):  1.0%us,  0.0%sy,  0.0%ni, 98.0%id,  0.0%wa,  0.0%hi,  1.0%si,  0.0%st

zzz ***Wed Jan 27 08:54:39 CST 2016 Cpu(s):  1.0%us,  1.0%sy,  0.0%ni, 98.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

zzz ***Wed Jan 27 08:55:09 CST 2016 Cpu(s):  2.0%us,  2.0%sy,  0.0%ni, 96.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

zzz ***Wed Jan 27 08:55:39 CST 2016 Cpu(s):  1.0%us,  2.0%sy,  0.0%ni, 96.1%id,  0.0%wa,  1.0%hi,  0.0%si,  0.0%st

zzz ***Wed Jan 27 08:56:09 CST 2016 Cpu(s):  5.9%us,  2.0%sy,  0.0%ni, 87.3%id,  4.9%wa,  0.0%hi,  0.0%si,  0.0%st

[root@rac11g1 oswtop]# sort -n -k 9 result.txt  经过排序后的内容

......

zzz ***Wed Jan 27 08:55:39 CST 2016 Cpu(s):  1.0%us,  2.0%sy,  0.0%ni, 96.1%id,  0.0%wa,  1.0%hi,  0.0%si,  0.0%st

zzz ***Wed Jan 27 08:50:08 CST 2016 Cpu(s):  2.0%us,  0.0%sy,  0.0%ni, 96.1%id,  0.0%wa,  1.0%hi,  1.0%si,  0.0%st

zzz ***Wed Jan 27 08:53:38 CST 2016 Cpu(s):  2.0%us,  2.0%sy,  0.0%ni, 95.1%id,  0.0%wa,  1.0%hi,  0.0%si,  0.0%st

zzz ***Wed Jan 27 08:55:09 CST 2016 Cpu(s):  2.0%us,  2.0%sy,  0.0%ni, 96.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

zzz ***Wed Jan 27 08:49:08 CST 2016 Cpu(s):  3.0%us,  1.0%sy,  0.0%ni, 94.1%id,  2.0%wa,  0.0%hi,  0.0%si,  0.0%st

zzz ***Wed Jan 27 08:56:09 CST 2016 Cpu(s):  5.9%us,  2.0%sy,  0.0%ni, 87.3%id,  4.9%wa,  0.0%hi,  0.0%si,  0.0%st

zzz ***Wed Jan 27 08:51:38 CST 2016 Cpu(s): 14.0%us,  1.0%sy,  0.0%ni, 85.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st

由于文件是时间顺序生成的,因此时间和对应的资源使用率可以一致对应。剩下的工作就是自由发挥了。当然你也可以写出更优雅的shell脚本。

另外有需要云服务器可以了解下创新互联cdcxhl.cn,海内外云服务器15元起步,三天无理由+7*72小时售后在线,公司持有idc许可证,提供“云服务器、裸金属服务器、高防服务器、香港服务器、美国服务器、虚拟主机、免备案服务器”等云主机租用服务以及企业上云的综合解决方案,具有“安全稳定、简单易用、服务可用性高、性价比高”等特点与优势,专为企业上云打造定制,能够满足用户丰富、多元化的应用场景需求。


网站题目:OSW的一些改良-创新互联
文章URL:http://jkwzsj.com/article/eeche.html

其他资讯