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Elastic Stack Kibana
1

Hi Everyone, I'm install elastic and kibana on Centos 7.

They was working but when I restart the server, the services now print "We couldn't log you in. Please try again." in Kibana's login.

I look the service status and both are running, but cluster health is red:

{
  "cluster_name" : "elasticsearch",
  "status" : "red",
  "timed_out" : false,
  "number_of_nodes" : 1,
  "number_of_data_nodes" : 1,
  "active_primary_shards" : 23,
  "active_shards" : 23,
  "relocating_shards" : 0,
  "initializing_shards" : 0,
  "unassigned_shards" : 3,
  "delayed_unassigned_shards" : 0,
  "number_of_pending_tasks" : 0,
  "number_of_in_flight_fetch" : 0,
  "task_max_waiting_in_queue_millis" : 0,
  "active_shards_percent_as_number" : 88.46153846153845
}
2

Go to /var/log/elasticsearch and check the cluster log.

1 Like
3

Hi,
The last print on logs is

 [2023-08-16T15:18:04,453][WARN ][o.e.c.r.a.DiskThresholdMonitor] [apmlab] high disk watermark [90%] exceeded on [rzsMYzKgQICCjscEqbR8AQ][apmlab][/var/lib/elasticsearch] free: 3.6gb[5.6%], shards will be relocated away from this node; currently relocating away shards totalling [0] bytes; the node is expected to continue to exceed the high disk watermark when these relocations are complete
[2023-08-16T15:19:04,457][WARN ][o.e.c.r.a.DiskThresholdMonitor] [apmlab] high disk watermark [90%] exceeded on [rzsMYzKgQICCjscEqbR8AQ][apmlab][/var/lib/elasticsearch] free: 3.6gb[5.6%], shards will be relocated away from this node; currently relocating away shards totalling [0] bytes; the node is expected to continue to exceed the high disk watermark when these relocations are complete
[2023-08-16T15:20:04,462][WARN ][o.e.c.r.a.DiskThresholdMonitor] [apmlab] high disk watermark [90%] exceeded on [rzsMYzKgQICCjscEqbR8AQ][apmlab][/var/lib/elasticsearch] free: 3.6gb[5.6%], shards will be relocated away from this node; currently relocating away shards totalling [0] bytes; the node is expected to continue to exceed the high disk watermark when these relocations are complete
[2023-08-16T15:21:34,468][WARN ][o.e.c.r.a.DiskThresholdMonitor] [apmlab] high disk watermark [90%] exceeded on [rzsMYzKgQICCjscEqbR8AQ][apmlab][/var/lib/elasticsearch] free: 3.6gb[5.6%], shards will be relocated away from this node; currently relocating away shards totalling [0] bytes; the node is expected to continue to exceed the high disk watermark when these relocations are complete
[2023-08-16T15:22:34,473][WARN ][o.e.c.r.a.DiskThresholdMonitor] [apmlab] high disk watermark [90%] exceeded on [rzsMYzKgQICCjscEqbR8AQ][apmlab][/var/lib/elasticsearch] free: 3.6gb[5.6%], shards will be relocated away from this node; currently relocating away shards totalling [0] bytes; the node is expected to continue to exceed the high disk watermark when these relocations are complete
[2023-08-16T15:24:04,478][WARN ][o.e.c.r.a.DiskThresholdMonitor] [apmlab] high disk watermark [90%] exceeded on [rzsMYzKgQICCjscEqbR8AQ][apmlab][/var/lib/elasticsearch] free: 3.6gb[5.6%], shards will be relocated away from this node; currently relocating away shards totalling [0] bytes; the node is expected to continue to exceed the high disk watermark when these relocations are complete
[2023-08-16T15:25:04,481][WARN ][o.e.c.r.a.DiskThresholdMonitor] [apmlab] high disk watermark [90%] exceeded on [rzsMYzKgQICCjscEqbR8AQ][apmlab][/var/lib/elasticsearch] free: 3.6gb[5.6%], shards will be relocated away from this node; currently relocating away shards totalling [0] bytes; the node is expected to continue to exceed the high disk watermark when these relocations are complete
4

You need to free up some space in your server, are you able to remove other files in your server from mount of the /var path?

5

As Leandro said, minimum is 15% free space. Read here.

1 Like
6

Thanks, i will to remove files and restart the server.

7

assign more memory to the server and to the directory and it worked, thank you very much.

1 Like
8

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