Hello, I am installing datahub and found the below error in gms log. Any idea how to troubleshoot this?

22:35:38.719 [pool-13-thread-1] ERROR o.s.s.s.TaskUtils$LoggingErrorHandler:95 - Unexpected error occurred in scheduled task
java.lang.RuntimeException: Search query failed:
        at com.linkedin.datahub.graphql.analytics.service.AnalyticsService.executeAndExtract(AnalyticsService.java:265)
        at com.linkedin.datahub.graphql.analytics.service.AnalyticsService.getHighlights(AnalyticsService.java:236)
        at com.linkedin.gms.factory.telemetry.DailyReport.dailyReport(DailyReport.java:76)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:84)
        at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
        at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
        at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
        at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: org.elasticsearch.ElasticsearchStatusException: Elasticsearch exception [type=index_not_found_exception, reason=no such index [datahub_usage_event]]
        at org.elasticsearch.rest.BytesRestResponse.errorFromXContent(BytesRestResponse.java:187)
        at org.elasticsearch.client.RestHighLevelClient.parseEntity(RestHighLevelClient.java:1892)
        at org.elasticsearch.client.RestHighLevelClient.parseResponseException(RestHighLevelClient.java:1869)
        at org.elasticsearch.client.RestHighLevelClient.internalPerformRequest(RestHighLevelClient.java:1626)
        at org.elasticsearch.client.RestHighLevelClient.performRequest(RestHighLevelClient.java:1583)
        at org.elasticsearch.client.RestHighLevelClient.performRequestAndParseEntity(RestHighLevelClient.java:1553)
        at org.elasticsearch.client.RestHighLevelClient.search(RestHighLevelClient.java:1069)
        at com.linkedin.datahub.graphql.analytics.service.AnalyticsService.executeAndExtract(AnalyticsService.java:260)
        ... 14 common frames omitted
        Suppressed: org.elasticsearch.client.ResponseException: method [POST], host [<http://elasticsearch:9200>], URI [/datahub_usage_event/_search?typed_keys=true&max_concurrent_shard_requests=5&ignore_unavailable=false&expand_wildcards=open&allow_no_indices=true&ignore_throttled=true&search_type=query_then_fetch&batched_reduce_size=512&ccs_minimize_roundtrips=true], status line [HTTP/1.1 404 Not Found]
{"error":{"root_cause":[{"type":"index_not_found_exception","reason":"no such index [datahub_usage_event]","resource.type":"index_or_alias","resource.id":"datahub_usage_event","index_uuid":"_na_","index":"datahub_usage_event"}],"type":"index_not_found_exception","reason":"no such index [datahub_usage_event]","resource.type":"index_or_alias","resource.id":"datahub_usage_event","index_uuid":"_na_","index":"datahub_usage_event"},"status":404}
                at org.elasticsearch.client.RestClient.convertResponse(RestClient.java:302)
                at org.elasticsearch.client.RestClient.performRequest(RestClient.java:272)
                at org.elasticsearch.client.RestClient.performRequest(RestClient.java:246)
                at org.elasticsearch.client.RestHighLevelClient.internalPerformRequest(RestHighLevelClient.java:1613)

It is not an important error. As you can see in the log, the problem is that an index was not found in ElasticSearch. Usually that error drives Datahub to create the index. If it happens with an important index (which is not the case, as the nonexistence of the index

datahub_usage_event

doesn't stop Datahub from working) and it is not created for some reason, I would recommend to erase all indeces in ElasticSearch so that Datahub would detect that it is starting from scratch and will try to create all indeces back again.