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From "Anuja Pundlik (apundlik)" <apund...@cisco.com>
Subject High CPU usage for idle kafka server
Date Thu, 04 Jun 2015 04:43:23 GMT
Hi,

I am using Kafka 0.8.2.1.
We have 1 zookeeper, 3 kafka brokers.
We have 9 topics, out of which 1 topic has 18 partitions, while another has 12 partitions.
All other topics have 1 partition each.

We see that idle kafka brokers (not carrying any message) are using more than 50% of CPU.
See top output below.

Is this a known issue?


Thanks



top - 04:42:30 up  2:07,  1 user,  load average: 1.50, 1.31, 0.92
Tasks: 177 total,   1 running, 176 sleeping,   0 stopped,   0 zombie
Cpu(s): 13.5%us,  4.5%sy,  0.0%ni, 81.3%id,  0.2%wa,  0.0%hi,  0.1%si,  0.4%st
Mem:  65974296k total, 22310524k used, 43663772k free,   112688k buffers
Swap:        0k total,        0k used,        0k free, 13382460k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+ COMMAND
 9295 wae       20   0 5212m 894m  12m S   62  1.4  22:50.99 java
 9323 wae       20   0 5502m 894m  12m S   56  1.4  24:28.69 java
 9353 wae       20   0 5072m 896m  12m S   54  1.4  17:04.31 java

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