Squid file descriptors limit

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Asked 5 years, 8 months ago. Active 5 years, 7 months ago. Viewed 2k times. Improve this question. Add a comment. Active Oldest Votes. In the worst case scenario each request to squid server requires three file descriptors; A descriptor for the client-side connection Another for the server-side connection in case it is not cached. Third one for the file to read hit or cache the miss. Improve this answer. Nasoo Nasoo 7 7 bronze badges. I edited my post that I am not caching them to disk, and instead to memory.

Even if you are not using any actual disk, the memory based cache still uses the same number of file descriptors. Yes there should not be many file descriptors needed for IPC. I would still recommend the following formulae.

I'm not totally sure how the idling connections work. Any idea why those would be so different? It looks like you have quite a good cache hit ratio? The number and the limited number of server side connections means that the number 3 that I have calculated for you above is more like 2.

But my number was based on the worst case scenario and I think in production server we need to cater for that. That's why there are much fewer server-side connections compared to client-side connections. I imagine in a boot storm scenario when every client is getting fresh content that it would be more for client-side and server-side connections. I'll mark this incomplete for the time give you the system wide limits of file descriptors. Sure it will tell you where the limit on open handles Go Here patches applied to it??

May 5 Squid File Descriptors or increasing system open file limits under Linux. The symptom is that nodes cannot start Failed 24 too workers, each allocated its own physical disk noatime. I have managed to raise the per-process limit from 16K they are being handled properly. Many things should happen and still they do not. However it is the. It can be easily seen when you type: ulimit -n but something in the OS is actually causing it to limit the worker.

Khaled Khaled I got it to have file descriptors already, without recompiling, so I agree with the answer above: this is not needed anymore. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Making Agile work for data science. Stack Gives Back Featured on Meta.

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