Hi I read this post https://discuss.elastic.co/t/docs-nofile-or-nproc/142049/2 regarding construct for nofile vs nproc.
Let me describe my case
I've provisioned by docker compose service for elasticsearch:
ulimits:
memlock:
soft: -1
hard: -1
nofile:
soft: 65535
hard: 65535
deploy:
at least I saw in docker container that I have
open files (-n) 1048576
elasticsearch@441ecdf403aa:~$ ulimit -a
core file size (blocks, -c) unlimited
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 1029415
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 1048576
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) unlimited
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
from elaticsearch point of view it's also doesn't look as expected:
"wOMZvpx7QkW1IoDB9-hv5A" : {
"timestamp" : 1647361899514,
"name" : "es_coordination_1",
"transport_address" : "10.0.9.187:9300",
"host" : "10.0.9.187",
"ip" : "10.0.9.187:9300",
"roles" : [
"data",
"data_cold",
"data_content",
"data_frozen",
"data_hot",
"data_warm",
"ingest",
"master",
"remote_cluster_client",
"transform"
],
"attributes" : {
"xpack.installed" : "true",
"transform.node" : "true"
},
"process" : {
"timestamp" : 1647361899516,
"open_file_descriptors" : 1771,
"max_file_descriptors" : 1048576,
on the system I've also:
config in /etc/security/limits.conf
elasticsearch soft nofile 65535
elasticsearch hard nofile 65535
elasticsearch soft memlock unlimited
elasticsearch hard memlock unlimited
Have You ever met such kind of case?