The linux system reports an error: Resource temporarily unavailable
Cause: Too many processes or open files, exceeding the default value
Maximum number of open processes:
$ 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) 1032042 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) 10240 cpu time (seconds, -t) unlimited max user processes (-u) 1024 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited
max user processes (-u) 1024 maximum number of processes
Use ulimit -u number to set.
Or use ROOT user to modify:
/etc/security/limits.d/90-nproc.conf
* soft nproc 1024 root soft nproc unlimited
Add a line: such as:
username soft nproc 4096