# \[1\]: max number of threads \[2048\] for user \[elasticsearch\] is too low, increase to at least \[4096\]
**URL:** https://discuss.elastic.co/t/1-max-number-of-threads-2048-for-user-elasticsearch-is-too-low-increase-to-at-least-4096/146809
**Category:** Elasticsearch
**Created:** [August 31, 2018, 6:27am UTC](https://discuss.elastic.co/t/1-max-number-of-threads-2048-for-user-elasticsearch-is-too-low-increase-to-at-least-4096/146809 "2018-08-31T06:27:18Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@yuzhongzhu](https://discuss.elastic.co/u/yuzhongzhu)
#### Post date: [August 31, 2018, 6:27am UTC](https://discuss.elastic.co/t/1-max-number-of-threads-2048-for-user-elasticsearch-is-too-low-increase-to-at-least-4096/146809/1 "2018-08-31T06:27:18Z")
Hi,I install elasticsearch6.4 in **ubuntu** on docker, and I have set nproc to 4096, but I still get the error message "[1]: max number of threads [2048] for user [elasticsearch] is too low, increase to at least [4096]", Can someone help me, Thanks a lot.
The following is my configuration.
root@vc2crtp2160109n:/home/anumber/docker-elk# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
[docker.elastic.co/kibana/kibana](http://docker.elastic.co/kibana/kibana) 6.4.0 a7e4cd1a7b45 13 days ago 666.9 MB
[docker.elastic.co/elasticsearch/elasticsearch](http://docker.elastic.co/elasticsearch/elasticsearch) 6.4.0 1ac676545731 13 days ago 791.3 MB
root@vc2crtp2160109n:/home/anumber/docker-elk# cat /etc/security/limits.conf
elasticsearch soft memlock unlimited
elasticsearch hard memlock unlimited
elasticsearch - nofile 65536
elasticsearch - nproc 4096
root soft memlock unlimited
root hard memlock unlimited
root - nofile 65536
root - nproc 4096
root@vc2crtp2160109n:/home/anumber/docker-elk# ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 63844
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 1024
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) 4096**
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
root@vc2crtp2160109n:/home/a632680/docker-elk# grep nproc /etc/security/\*
/etc/security/limits.conf:# - nproc - max number of processes
/etc/security/limits.conf:#@student hard nproc 20
/etc/security/limits.conf:#@faculty soft nproc 20
/etc/security/limits.conf:#@faculty hard nproc 50
/etc/security/limits.conf:#ftp hard nproc 0
/etc/security/limits.conf: **elasticsearch - nproc 4096**
/etc/security/limits.conf: **root - nproc 4096**
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [September 28, 2018, 6:27am UTC](https://discuss.elastic.co/t/1-max-number-of-threads-2048-for-user-elasticsearch-is-too-low-increase-to-at-least-4096/146809/2 "2018-09-28T06:27:29Z")
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