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go1.19: adjust systemd unit to allow setrlimit

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Go 1.19 uses it during startup.

From the Go changelog:

> On Unix operating systems, Go programs that import package os now
> automatically increase the open file limit (RLIMIT_NOFILE) to the
> maximum allowed value; that is, they change the soft limit to match the
> hard limit. This corrects artificially low limits set on some systems
> for compatibility with very old C programs using the select system call.
> Go programs are not helped by that limit, and instead even simple
> programs like gofmt often ran out of file descriptors on such systems
> when processing many files in parallel. One impact of this change is
> that Go programs that in turn execute very old C programs in child
> processes may run those programs with too high a limit. This can be
> corrected by setting the hard limit before invoking the Go program.
This commit is contained in:
Christian Schwarz 2022-10-24 23:23:09 +02:00
parent a91fb873e4
commit 12018b3685
1 changed files with 2 additions and 1 deletions
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3
dist/systemd/zrepl.service vendored
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@ -27,7 +27,8 @@ ProtectHome=read-only
# SystemCallFilter # SystemCallFilter
# ~@privileged doesn't work with Ubuntu 18.04 ssh # ~@privileged doesn't work with Ubuntu 18.04 ssh
SystemCallFilter=~ @mount @cpu-emulation @keyring @module @obsolete @raw-io @debug @clock @resources SystemCallFilter=~ @mount @cpu-emulation @keyring @module @obsolete @raw-io @debug @clock @resources
# Go1.19 added automatic RLIMIT_NOFILE changes, so, we need to allow that
SystemCallFilter= setrlimit
[Install] [Install]
WantedBy=multi-user.target WantedBy=multi-user.target