I can not start Elastic although I can do it few days before.
root@vmi503579:~# journalctl -ex
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 884825] 33 884825 59113 6477 241664 686 0 apache2
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 885861] 0 885861 2771 158 57344 11 0 cron
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 885862] 0 885862 652 17 40960 0 0 sh
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 885863] 0 885863 2373 51 57344 0 0 bash
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 885867] 0 885867 2969 70 65536 0 0 systemctl
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 885868] 111 885868 3134350 2181589 17993728 0 0 java
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 886065] 111 886065 27101 148 86016 0 0 controller
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 886080] 0 886080 2771 159 57344 11 0 cron
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 886081] 0 886081 652 16 45056 0 0 sh
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 886082] 0 886082 2373 60 53248 0 0 bash
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 886086] 0 886086 2969 68 69632 0 0 systemctl
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/system.slice/elasticsearch.service,task=java,pid=885868,uid=111
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: Out of memory: Killed process 885868 (java) total-vm:12537400kB, anon-rss:8726356kB, file-rss:0kB, shmem-rss:0kB, UID:111 pgtables:17572kB oom_score_adj:0
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:41:58:b2:28:99:3a:4d:23:91:08:00 SRC=193.27.228.58 DST=173.249.58.30 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=20932 PROTO=TCP SPT=50>
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: oom_reaper: reaped process 885868 (java), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
Jul 13 15:27:55 vmi503579.contaboserver.net systemd[1]: elasticsearch.service: Main process exited, code=killed, status=9/KILL
-- Subject: Unit process exited
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- An ExecStart= process belonging to unit elasticsearch.service has exited.
--
-- The process' exit code is 'killed' and its exit status is 9.
Jul 13 15:27:55 vmi503579.contaboserver.net systemd[1]: elasticsearch.service: Failed with result 'signal'.
-- Subject: Unit failed
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- The unit elasticsearch.service has entered the 'failed' state with result 'signal'.
Jul 13 15:27:55 vmi503579.contaboserver.net systemd[1]: Failed to start Elasticsearch.
-- Subject: A start job for unit elasticsearch.service has failed
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- A start job for unit elasticsearch.service has finished with a failure.
--
-- The job identifier is 419853 and the job result is failed.
Jul 13 15:27:55 vmi503579.contaboserver.net CRON[885861]: (CRON) info (No MTA installed, discarding output)
Jul 13 15:27:55 vmi503579.contaboserver.net CRON[886080]: (CRON) info (No MTA installed, discarding output)
Jul 13 15:27:55 vmi503579.contaboserver.net CRON[885861]: pam_unix(cron:session): session closed for user root
Jul 13 15:27:55 vmi503579.contaboserver.net CRON[886080]: pam_unix(cron:session): session closed for user root
Jul 13 15:28:01 vmi503579.contaboserver.net CRON[886113]: pam_unix(cron:session): session opened for user root by (uid=0)
Jul 13 15:28:01 vmi503579.contaboserver.net CRON[886114]: (root) CMD (bash /root/custom-scripts/elasticsearch/start-elasticsearch.sh)
Jul 13 15:28:01 vmi503579.contaboserver.net systemd[1]: Starting Elasticsearch...
-- Subject: A start job for unit elasticsearch.service has begun execution
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- A start job for unit elasticsearch.service has begun execution.
--
-- The job identifier is 419985.
Jul 13 15:28:08 vmi503579.contaboserver.net kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:41:58:b2:28:99:3a:4d:23:91:08:00 SRC=89.248.165.203 DST=173.249.58.30 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=26420 PROTO=TCP SPT=5>
Jul 13 15:28:30 vmi503579.contaboserver.net kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:41:58:b2:28:99:3a:4d:23:91:08:00 SRC=89.248.165.203 DST=173.249.58.30 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=60186 PROTO=TCP SPT=5>
Jul 13 15:28:53 vmi503579.contaboserver.net kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:41:58:b2:28:99:3a:4d:23:91:08:00 SRC=47.100.237.187 DST=173.249.58.30 LEN=40 TOS=0x14 PREC=0x00 TTL=241 ID=33623 PROTO=TCP SPT=4>
Jul 13 15:29:01 vmi503579.contaboserver.net CRON[886403]: pam_unix(cron:session): session opened for user root by (uid=0)
Jul 13 15:29:01 vmi503579.contaboserver.net CRON[886404]: (root) CMD (bash /root/custom-scripts/elasticsearch/start-elasticsearch.sh)
Jul 13 15:29:21 vmi503579.contaboserver.net kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:41:58:b2:28:99:3a:4d:23:91:08:00 SRC=185.53.90.85 DST=173.249.58.30 LEN=58 TOS=0x08 PREC=0x00 TTL=246 ID=54321 PROTO=UDP SPT=448>
lines 1157-1213/1213 (END)
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 884825] 33 884825 59113 6477 241664 686 0 apache2
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 885861] 0 885861 2771 158 57344 11 0 cron
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 885862] 0 885862 652 17 40960 0 0 sh
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 885863] 0 885863 2373 51 57344 0 0 bash
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 885867] 0 885867 2969 70 65536 0 0 systemctl
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 885868] 111 885868 3134350 2181589 17993728 0 0 java
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 886065] 111 886065 27101 148 86016 0 0 controller
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 886080] 0 886080 2771 159 57344 11 0 cron
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 886081] 0 886081 652 16 45056 0 0 sh
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 886082] 0 886082 2373 60 53248 0 0 bash
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [ 886086] 0 886086 2969 68 69632 0 0 systemctl
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=/,mems_allowed=0,global_oom,task_memcg=/system.slice/elasticsearch.service,task=java,pid=885868,uid=111
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: Out of memory: Killed process 885868 (java) total-vm:12537400kB, anon-rss:8726356kB, file-rss:0kB, shmem-rss:0kB, UID:111 pgtables:17572kB oom_score_adj:0
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:41:58:b2:28:99:3a:4d:23:91:08:00 SRC=193.27.228.58 DST=173.249.58.30 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=20932 PROTO=TCP SPT=50633 DPT=>
Jul 13 15:27:55 vmi503579.contaboserver.net kernel: oom_reaper: reaped process 885868 (java), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
Jul 13 15:27:55 vmi503579.contaboserver.net systemd[1]: elasticsearch.service: Main process exited, code=killed, status=9/KILL
-- Subject: Unit process exited
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- An ExecStart= process belonging to unit elasticsearch.service has exited.
--
-- The process' exit code is 'killed' and its exit status is 9.
Jul 13 15:27:55 vmi503579.contaboserver.net systemd[1]: elasticsearch.service: Failed with result 'signal'.
-- Subject: Unit failed
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- The unit elasticsearch.service has entered the 'failed' state with result 'signal'.
Jul 13 15:27:55 vmi503579.contaboserver.net systemd[1]: Failed to start Elasticsearch.
-- Subject: A start job for unit elasticsearch.service has failed
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- A start job for unit elasticsearch.service has finished with a failure.
--
-- The job identifier is 419853 and the job result is failed.
Jul 13 15:27:55 vmi503579.contaboserver.net CRON[885861]: (CRON) info (No MTA installed, discarding output)
Jul 13 15:27:55 vmi503579.contaboserver.net CRON[886080]: (CRON) info (No MTA installed, discarding output)
Jul 13 15:27:55 vmi503579.contaboserver.net CRON[885861]: pam_unix(cron:session): session closed for user root
Jul 13 15:27:55 vmi503579.contaboserver.net CRON[886080]: pam_unix(cron:session): session closed for user root
Jul 13 15:28:01 vmi503579.contaboserver.net CRON[886113]: pam_unix(cron:session): session opened for user root by (uid=0)
Jul 13 15:28:01 vmi503579.contaboserver.net CRON[886114]: (root) CMD (bash /root/custom-scripts/elasticsearch/start-elasticsearch.sh)
Jul 13 15:28:01 vmi503579.contaboserver.net systemd[1]: Starting Elasticsearch...
-- Subject: A start job for unit elasticsearch.service has begun execution
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
--
-- A start job for unit elasticsearch.service has begun execution.
--
-- The job identifier is 419985.
Jul 13 15:28:08 vmi503579.contaboserver.net kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:41:58:b2:28:99:3a:4d:23:91:08:00 SRC=89.248.165.203 DST=173.249.58.30 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=26420 PROTO=TCP SPT=59598 DPT>
Jul 13 15:28:30 vmi503579.contaboserver.net kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:41:58:b2:28:99:3a:4d:23:91:08:00 SRC=89.248.165.203 DST=173.249.58.30 LEN=40 TOS=0x00 PREC=0x00 TTL=247 ID=60186 PROTO=TCP SPT=59598 DPT>
Jul 13 15:28:53 vmi503579.contaboserver.net kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:41:58:b2:28:99:3a:4d:23:91:08:00 SRC=47.100.237.187 DST=173.249.58.30 LEN=40 TOS=0x14 PREC=0x00 TTL=241 ID=33623 PROTO=TCP SPT=42745 DPT>
Jul 13 15:29:01 vmi503579.contaboserver.net CRON[886403]: pam_unix(cron:session): session opened for user root by (uid=0)
Jul 13 15:29:01 vmi503579.contaboserver.net CRON[886404]: (root) CMD (bash /root/custom-scripts/elasticsearch/start-elasticsearch.sh)
Jul 13 15:29:21 vmi503579.contaboserver.net kernel: [UFW BLOCK] IN=eth0 OUT= MAC=00:50:56:41:58:b2:28:99:3a:4d:23:91:08:00 SRC=185.53.90.85 DST=173.249.58.30 LEN=58 TOS=0x08 PREC=0x00 TTL=246 ID=54321 PROTO=UDP SPT=44853 DPT=5>
lines 1157-1213/1213 (END)
The log say out of memory but I dont know which memory.
command df returns this
root@vmi503579:~# df
Filesystem 1K-blocks Used Available Use% Mounted on
udev 8170104 0 8170104 0% /dev
tmpfs 1639756 952 1638804 1% /run
/dev/sda2 410835424 160177256 229719160 42% /
tmpfs 8198768 0 8198768 0% /dev/shm
tmpfs 5120 0 5120 0% /run/lock
tmpfs 8198768 0 8198768 0% /sys/fs/cgroup
/dev/loop2 56832 56832 0 100% /snap/core18/2074
/dev/loop4 56832 56832 0 100% /snap/core18/2066
/dev/loop5 63232 63232 0 100% /snap/core20/1026
/dev/loop0 43264 43264 0 100% /snap/certbot/1201
/dev/loop6 224256 224256 0 100% /snap/gnome-3-34-1804/66
/dev/loop7 66688 66688 0 100% /snap/gtk-common-themes/1515
/dev/loop3 63232 63232 0 100% /snap/core20/975
/dev/loop8 33152 33152 0 100% /snap/snapd/12398
/dev/loop9 33152 33152 0 100% /snap/snapd/12159
/dev/loop10 224256 224256 0 100% /snap/gnome-3-34-1804/72
/dev/sda1 944120 75396 803548 9% /boot
tmpfs 1639752 0 1639752 0% /run/user/110
/dev/loop11 43392 43392 0 100% /snap/certbot/1280
tmpfs 1639752 0 1639752 0% /run/user/0
Is there somebody who understand it? Thanks for any help.