Elasticsearch status is in red

Elastic Stack Elasticsearch
1

elasticsearch is in red status and found this log in master node.
[2020-01-14T14:25:39,232][INFO ][o.e.c.r.a.DiskThresholdMonitor] [elastic02] low disk watermark [85%] exceeded on [h_w0x3riSpS1Dh-WQANUhQ][elastic02][/var/lib/elasticsearch/nodes/0] free: 9.2gb[10.8%], replicas will not be assigned to this node
space in /var is 90%

Thanks,

2

I think the error message is quite clear: you are running out of disk space and can therefore not allocate new shards. You need to either add resources to the cluster or delete data to free up space.

3

How can i delete old data?

4

Is it possible to delete data in /var/lib/elasticsearch/node/0/indices?

5

No, delete indices using Delete index API. You should NEVER directly delete anything at the file system level directly.

6

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