Unable to install elasticsearch

LXD
1

I am trying to setup a elasticsearch cluster. I choose Rocky Linux 8 image. When I try to install elasticsearch (7.6.0) using rpm -ivh elasticsearch-7.6.0-x86_64.rpm, I am receiving following error -

Verifying...                          ################################# [100%]
Preparing...                          ################################# [100%]
Creating elasticsearch group... OK
Creating elasticsearch user... OK
Updating / installing...
   1:elasticsearch-0:7.6.0-1          ################################# [100%]
### NOT starting on installation, please execute the following statements to configure elasticsearch service to start automatically using systemd
 sudo systemctl daemon-reload
 sudo systemctl enable elasticsearch.service
### You can start elasticsearch service by executing
 sudo systemctl start elasticsearch.service
Created elasticsearch keystore in /etc/elasticsearch
Couldn't write '0' to 'kernel/yama/ptrace_scope', ignoring: Permission denied
Couldn't write '|/usr/lib/systemd/systemd-coredump %P %u %g %s %t %c %h %e' to 'kernel/core_pattern', ignoring: Permission denied
Couldn't write '16' to 'kernel/core_pipe_limit', ignoring: Permission denied
Couldn't write '16' to 'kernel/sysrq', ignoring: Permission denied
Couldn't write '1' to 'kernel/core_uses_pid', ignoring: Permission denied
Couldn't write '1' to 'kernel/kptr_restrict', ignoring: Permission denied
Couldn't write '0 2147483647' to 'net/ipv4/ping_group_range', ignoring: Invalid argument
Couldn't write 'fq_codel' to 'net/core/default_qdisc', ignoring: No such file or directory
Couldn't write '1' to 'fs/protected_hardlinks', ignoring: Permission denied
Couldn't write '1' to 'fs/protected_symlinks', ignoring: Permission denied
Couldn't write '81920' to 'net/core/optmem_max', ignoring: No such file or directory
Couldn't write '4194304' to 'kernel/pid_max', ignoring: Permission denied
Couldn't write '262144' to 'vm/max_map_count', ignoring: Permission denied
[/usr/lib/tmpfiles.d/elasticsearch.conf:1] Line references path below legacy directory /var/run/, updating /var/run/elasticsearch → /run/elasticsearch; please update the tmpfiles.d/ drop-in file accordingly.

I appreciate any assistance on this!

2

Hi @mrrabinhalder,
Have a look at that post, https://github.com/lxc/lxd/issues/2544
Instead of those warnings, you can start the elasticsearch service without any hitch.
Regards.

3

I sometimes manually apply those failed settings to host if I want to have them applied (e.g. if they’re related to networking, for example).

4

Definitely @sean, it should prevent those messages.
Regards.

5

It probably won’t prevent them per se (unless the installer attempts to set those settings only if they’re not already set), but at least you’ll have them present on the host.
I think some of those host settings will reflect in the guest as well.

6

Unprivileged containers cant change kernel settings but privileged or vm can solve the related warnings.
Regards.