Today I activated Elasticsearch Metrics and Typeahead Search on my demo HCL Connections cluster. To my surprise the indices weren’t created and I got errors on the commands. SearchService.createESQuickResultsIndex() I checked the Elasticsearch pods which showed a running state, but the logs showed following messages: [es-master-c9cc5d877-trwsd es-master] [2020-10-08T12:11:13,708][WARN ][o.e.c.r.a.DiskThresholdMonitor] \ [es-master-c9cc5d877-trwsd] high disk watermark [90%] exceeded on [sqwY58MtRa2MoPkHr1o70Q][es-data-2][/data/data/nodes/0] \ free: 2.7gb[5.4%], shards will be relocated away from this node So even with 2.7GB free space it does not generate the needed shards and indices. This is default behavior of Elasticsearch, but can be changed:

Read more