Nagios Creating lots of zombie process
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pradeepchhetri
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Published on 2012-08-29T13:34:45Z
Indexed on
2012/09/07
3:39 UTC
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In my monitoring box, I have lots of zombie process created by nagios and they gets remove quickly also. I am using active checks to perform monitoring of my servers. I accumulated the defunct processes created using the following command:
$ top -d 0.25 -b -n 20 > topout.txt
This collected the output of top with 0.25s delay 20 times.
I did grep on the topout.txt for the defunct process.
$ cat topout.txt | grep defunct
I get the following output.
8957 nagios 20 0 0 0 0 Z 6.0 0.0 0:00.02 nagios <defunct>
8951 nagios 20 0 0 0 0 Z 3.0 0.0 0:00.01 nagios <defunct>
8954 nagios 20 0 0 0 0 Z 3.0 0.0 0:00.01 nagios <defunct>
8945 nagios 20 0 0 0 0 Z 0.0 0.0 0:00.01 nagios <defunct>
8946 nagios 20 0 0 0 0 Z 0.0 0.0 0:00.01 nagios <defunct>
8980 nagios 20 0 0 0 0 Z 0.0 0.0 0:00.01 nagios <defunct>
9000 nagios 20 0 0 0 0 Z 0.0 0.0 0:00.00 nagios <defunct>
9024 nagios 20 0 0 0 0 Z 7.0 0.0 0:00.02 nagios <defunct>
9025 nagios 20 0 0 0 0 Z 3.5 0.0 0:00.01 nagios <defunct>
9040 nagios 20 0 0 0 0 Z 3.1 0.0 0:00.01 nagios <defunct>
9086 nagios 20 0 0 0 0 Z 0.0 0.0 0:00.01 nagios <defunct>
9087 nagios 20 0 0 0 0 Z 0.0 0.0 0:00.01 nagios <defunct>
9123 nagios 20 0 0 0 0 Z 6.1 0.0 0:00.02 nagios <defunct>
9126 nagios 20 0 0 0 0 Z 3.0 0.0 0:00.01 nagios <defunct>
9131 nagios 20 0 0 0 0 Z 3.0 0.0 0:00.01 nagios <defunct>
9091 nagios 20 0 0 0 0 Z 0.0 0.0 0:00.05 nagios <defunct>
9111 nagios 20 0 0 0 0 Z 0.0 0.0 0:00.01 nagios <defunct>
9119 nagios 20 0 0 0 0 Z 0.0 0.0 0:00.01 nagios <defunct>
9118 nagios 20 0 0 0 0 Z 0.0 0.0 0:00.01 nagios <defunct>
9151 nagios 20 0 0 0 0 Z 2.9 0.0 0:00.02 nagios <defunct>
9153 nagios 20 0 0 0 0 Z 2.9 0.0 0:00.02 nagios <defunct>
9150 nagios 20 0 0 0 0 Z 0.0 0.0 0:00.01 nagios <defunct>
9164 nagios 20 0 0 0 0 Z 3.5 0.0 0:00.02 nagios <defunct>
9171 nagios 20 0 0 0 0 Z 3.5 0.0 0:00.02 nagios <defunct>
9154 nagios 20 0 0 0 0 Z 0.0 0.0 0:00.01 nagios <defunct>
9156 nagios 20 0 0 0 0 Z 0.0 0.0 0:00.01 nagios <defunct>
9163 nagios 20 0 0 0 0 Z 0.0 0.0 0:00.01 nagios <defunct>
9167 nagios 20 0 0 0 0 Z 0.0 0.0 0:00.01 nagios <defunct>
9178 nagios 20 0 0 0 0 Z 3.8 0.0 0:00.02 nagios <defunct>
9174 nagios 20 0 0 0 0 Z 0.0 0.0 0:00.01 nagios <defunct>
9179 nagios 20 0 0 0 0 Z 0.0 0.0 0:00.01 nagios <defunct>
9182 nagios 20 0 0 0 0 Z 0.0 0.0 0:00.01 nagios <defunct>
Can somebody help me in finding out the reason of these zombie processes and how i can prevent these zombie processes ?
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