org.elasticsearch.action.search.SearchPhaseExecutionException: all shards failed but cluster Health is yellow

Elastic Stack Elasticsearch
1

Hi

I had my elastic instance all running fine, hosted on OpenStack, but then all of a sudden Kibana doesnt load and on checking the logs I realized there was an issue. I dont know how to fix it.

This is the issue > [2019-12-12T18:41:25,739][DEBUG][o.e.a.s.TransportSearchAction] [node-1] All shards failed for phase: [query]

[2019-12-12T18:41:25,739][WARN ][r.suppressed             ] [node-1] path: /.kibana/_count, params: {index=.kibana}
org.elasticsearch.action.search.SearchPhaseExecutionException: all shards failed
        at org.elasticsearch.action.search.AbstractSearchAsyncAction.onPhaseFailure(AbstractSearchAsyncAction.java:305) [elasticsearch-7.$
        at org.elasticsearch.action.search.AbstractSearchAsyncAction.executeNextPhase(AbstractSearchAsyncAction.java:139) [elasticsearch-$
        at org.elasticsearch.action.search.AbstractSearchAsyncAction.onPhaseDone(AbstractSearchAsyncAction.java:264) [elasticsearch-7.3.2$
        at org.elasticsearch.action.search.InitialSearchPhase.onShardFailure(InitialSearchPhase.java:105) [elasticsearch-7.3.2.jar:7.3.2]
        at org.elasticsearch.action.search.InitialSearchPhase.lambda$performPhaseOnShard$1(InitialSearchPhase.java:251) [elasticsearch-7.$
        at org.elasticsearch.action.search.InitialSearchPhase$1.doRun(InitialSearchPhase.java:172) [elasticsearch-7.3.2.jar:7.3.2]
        at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) [elasticsearch-7.3.2.jar:7.3.2]
        at org.elasticsearch.common.util.concurrent.TimedRunnable.doRun(TimedRunnable.java:44) [elasticsearch-7.3.2.jar:7.3.2]
        at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:758) [elasti$
        at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) [elasticsearch-7.3.2.jar:7.3.2]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
        at java.lang.Thread.run(Thread.java:835) [?:?]

This is my cluster health :

{
"cluster_name" : "ubuntu_elastic",
"status" : "yellow",
"timed_out" : false,
"number_of_nodes" : 1,
"number_of_data_nodes" : 1,
"active_primary_shards" : 57,
"active_shards" : 57,
"relocating_shards" : 0,
"initializing_shards" : 0,
"unassigned_shards" : 38,
"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" : 60.0
}

2

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