On 27.09.21 16:13, Andrew Cooper wrote:
On 27/09/2021 11:48, Juergen Gross wrote:Add a configuration item for the maximum number of open file descriptors xenstored should be allowed to have.The default should be "unlimited" in order not to restrict xenstored in the number of domains it can support, but unfortunately the prlimit command requires specification of a real value for the number of files, so use 262144 as the default value.Citation needed. prlimit -nunlimited prlimit --nofile=unlimited both work fine, and strace confirms they issue correct system calls.
Not on my test system: # prlimit --pid 734 --nofile=unlimited prlimit: failed to set the NOFILE resource limit: Operation not permitted # prlimit --pid 734 --nofile=262144 #
Support for "unlimited" as a parameter has existed for the entire lifetime of the utility, https://github.com/karelzak/util-linux/commit/6bac2825af7216c5471148e219dbcf62ec5ede84
Yes, but not all systems seem to support raising the limit to "unlimited". Juergen
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