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jakubhajek / elasticsearch-docker-swarm

Elasticsearch Cluster on Docker swarm Cluster.
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elasticsearch:2 master1: Name or service not known #5

Closed m1cka closed 5 years ago

m1cka commented 5 years ago

i started cluster but i got 3 fails:

  1. [WARN ][bootstrap ] unable to install syscall filter: seccomp unavailable: your kernel is buggy and you should upgrade vm.max_map_count=262144 and LimitMEMLOCK=infinity (added to /usr/lib/systemd/system/docker.service) but error still available. (if bootstrap.memory_lock: false)

if if bootstrap.memory_lock: true WARN ][bootstrap ] Unable to lock JVM Memory: error=12,reason=Cannot allocate memory [WARN ][bootstrap ] This can result in part of the JVM being swapped out. [WARN ][bootstrap ] Increase RLIMIT_MEMLOCK, soft limit: 65536, hard limit: 65536 WARN ][bootstrap ] These can be adjusted by modifying /etc/security/limits.conf, for example:

allow user 'elasticsearch' mlockall

elasticsearch soft memlock unlimited elasticsearch hard memlock unlimited added to /etc/security/limits.conf

main problem: -> [INFO ][env ] [master3] heap size [989.8mb], compressed ordinary object pointers [true] Exception in thread "main" java.lang.IllegalArgumentException: Failed to resolve address for [master2] Likely root cause: java.net.UnknownHostException: master2: Name or service not known

its same in all nodes

jakubhajek commented 5 years ago

hi @m1cka

What Elasticsearch version do you try to run?

If you are playing with 7.x you can try my GIST which I just published:

https://gist.github.com/jakubhajek/73b36e88a9a85a11b56aa71294e6ef90

There is an example code to run Elasticsearch 7.4.2 on Docker Swarm.

m1cka commented 5 years ago

i'm using elasticsearch 2.4.2, docker image elasticsearch:2.4.2

jakubhajek commented 5 years ago

@m1cka this is a very old version that is no longer supported by the Elastic team. You should consider upgrading to 6.x or 7.x

The code I published here was not tested on such an old version, so I can't help you until you upgrade to the newest version.

However, the error you have posted is related to memory locking, please make sure that Dockerd is started with the parameter--default-ulimit=memlock -1

Please let me know if you need support regarding to that upgrade.