Hello. There was a problem on the server, for unknown reasons, apache began to fall, and it just hangs in the processes, you have to kill and start again, but it helps for a maximum of an hour. How to find out what is the reason?

UPD 09/17/2015: Now the server just began to hang wildly, the sites, respectively, too. In the Apache logs last 50 lines:

(32)Broken pipe: core_output_filter: writing data to the network

In order for this line to go away, find that it is necessary to write EnableSendfile off. I will continue to monitor whether it helped or not.

  • Let's start with the logs ... Give the last lines 100 (access and error) - GrayHoax
  • author! Is the problem relevant? my 5 kopecks - is the free memory on the server exhausted at the time of the crashes? - AntonioK
  • Let's just say, the problem now almost does not arise, + there are more urgent tasks, so I haven’t dealt with this issue yet, but the topic is still relevant for me, since I haven’t figure out the reasons for this behavior. - Michael
  • This error means that someone or something lays down the service, it would be necessary to have a larger piece of log - santer
  • Exit - put nginx) maybe slowloris - jashka

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