High disk watermark exceeded even when there is not much data in my index

Question

I\'m using elasticsearch on my local machine. The data directory is only 37MB in size but when I check logs, I can see:

[2015-05-17 21:31:12,905][WARN

Answer 1

To resolve the issue in which, the log is recorded as:

high disk watermark [90%] exceeded on [ytI5oTyYSsCVfrB6CWFL1g][ytI5oTy][/var/lib/elasticsearch/nodes/0] free: 552.2mb[4.3%], shards will be relocated away from this node

You can update the threshold limit by executing following curl request:

curl -XPUT "http://localhost:9200/_cluster/settings" \
 -H 'Content-Type: application/json' -d'
{
  "persistent": {
    "cluster": {
      "routing": {
        "allocation.disk.threshold_enabled": false
      }
    }
  }
}'