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BUG/MINOR: init: never lower rlim_fd_max

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If a ulimit-n value is set, we must not lower the rlim_max value if the
new value is lower, we must only adjust the rlim_cur one. The effect is
that on very low values, this could prevent a master-worker reload, or
make an external check fail by lack of FDs.

This may be backported to 1.9 and earlier, but it depends on this patch
"MINOR: global: keep a copy of the initial rlim_fd_cur and rlim_fd_max
values".
This commit is contained in:
Willy Tarreau 2019-03-01 10:32:05 +01:00
parent bf6964007a
commit e5cfdacb83
1 changed files with 3 additions and 1 deletions
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src/haproxy.c
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@ -2780,7 +2780,9 @@ int main(int argc, char **argv)
global.rlimit_nofile = global.maxsock;
if (global.rlimit_nofile) {
limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
limit.rlim_cur = global.rlimit_nofile;
limit.rlim_max = MAX(rlim_fd_max_at_boot, limit.rlim_cur);
if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
/* try to set it to the max possible at least */
getrlimit(RLIMIT_NOFILE, &limit);