Thread: pgsql: pgbench: Increase RLIMIT_NOFILE if necessary
pgbench: Increase RLIMIT_NOFILE if necessary pgbench already had code to check if the soft rlimit is too low for the specified number of connections. If too low, it errored out, telling the user to increase the limit. However, we can do better: If the hard limit allows, increase the soft limit to be sufficiently for the number of connections. It is common for the soft limit to be considerably lower than the hard limit, due to the danger of soft limits > 1024 breaking programs that use the select(2), as explained in [1]. [1]: https://0pointer.net/blog/file-descriptor-limits.html Author: Jelte Fennema-Nio <postgres@jeltef.nl> Reviewed-by: Andres Freund <andres@anarazel.de> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Discussion: https://postgr.es/m/CAGECzQQh6VSy3KG4pN1d%3Dh9J%3DD1rStFCMR%2Bt7yh_Kwj-g87aLQ%40mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/d38bab5edd60dbe6309512b6c8daea37ce579b70 Modified Files -------------- src/bin/pgbench/pgbench.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-)