Re: Too many open files : FIFO This may be a normal error message that occurs when a program needs an unusually high number of files opened at the same time. The kernel parameter: maxfiles controls this limit and is usually 60.
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Too many open files : FIFO
We are running Tomcat which after running for few days start generating 'Too Many open files exceptions'.. We ran lsof when this problem occurs and found a huge number (about 1000) of FIFO files.
Re: Too many open files : FIFO
for interprocess communication. They can be created by mkfifo (3C) library call.
Re: Too many open files : FIFO
This may be a normal error message that occurs when a program needs an unusually high number of files opened at the same time. The kernel parameter: maxfiles controls this limit and is usually 60. However, this can be increased with ulimit or inside the program with setrlimit up to maxfiles_lim which defaults to 1024 in the kernel.
Re: Too many open files : FIFO
we have tune the file limit to 4096, still happen the same problem. And we only have 10-20 connection at one time. It looks the FIFO can't release correctly, how to solve it ?
Re: Too many open files : FIFO
Call your programmers. Tomcat is probably dong what it was told to do which may the result of Java code or just application bugs. Nothing you can do as a sysadmin except to shutdown and restart the web server.
Re: Too many open files : FIFO
Same application in other Platform (Solaris , RH Linux) don't have this problem. So we don't know how to find the root cause and solve it.
Re: Too many open files : FIFO
Are the corresponding parameters on the other platforms set higher? If you run lsof on the other platforms, how many files do they have open? If it is significantly less then you probably have a bug in the HP-UX version. Start with patches, especially threads and networking, Apache/Tomcat and Java.
