[CentOS] Web server becoming unresponsive : high load
m.roth at 5-cent.us
m.roth at 5-cent.usFri Mar 11 18:47:50 UTC 2011
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robert mena wrote: > Hi, > > I have a web server which is randomly becoming unresponsive. I've > checked for hardware problems with no luck : > - no ethernet errors > - no disk errors > - no memory errors > > So far I've managed to point the trouble at the web server since if I > restart httpd (apache) it comes back to normal. > > This is not a shared server so I control (or at least like to think of) > what is hosted so I have two suspects: > a) my own code is behaving strangely. For example, a php script that in > a given situation/parameters increases the usage. > b) some sort of attack. Either in conjunction to a or other > vulnerability. You said you've checked for hardware errors, Robert - how 'bout other errors. For example, when it becomes unresponsive, what's top or free tell you? mark
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