Thanks a lot for your reply!
Sorry for "guys", didn't want to hurt somebody
Yea, here are some errors in the elastic logs:
{"type": "server", "timestamp": "2022-01-10T07:03:53,413Z", "level": "ERROR", "component": "o.e.x.i.IndexLifecycleRunner", "cluster.name": "es-docker-cluster", "node.name": "es01", "message": "policy [filebeat] for index [filebeat-7.15.2-2022.01.10] failed on step [{\"phase\":\"hot\",\"action\":\"rollover\",\"name\":\"check-rollover-ready\"}]. Moving to ERROR step", "cluster.uuid": "Bej_vV1xSHaIbsoUYLrKcQ", "node.id": "HykhdOWRT1ipHsdhTDGP6Q" ,
"stacktrace": ["java.lang.IllegalArgumentException: index.lifecycle.rollover_alias [filebeat-7.15.2] does not point to index [filebeat-7.15.2-2022.01.10]",
"at org.elasticsearch.xpack.core.ilm.WaitForRolloverReadyStep.evaluateCondition(WaitForRolloverReadyStep.java:126) [x-pack-core-7.15.2.jar:7.15.2]",
"at org.elasticsearch.xpack.ilm.IndexLifecycleRunner.runPeriodicStep(IndexLifecycleRunner.java:176) [x-pack-ilm-7.15.2.jar:7.15.2]",
"at org.elasticsearch.xpack.ilm.IndexLifecycleService.triggerPolicies(IndexLifecycleService.java:365) [x-pack-ilm-7.15.2.jar:7.15.2]",
"at org.elasticsearch.xpack.ilm.IndexLifecycleService.triggered(IndexLifecycleService.java:303) [x-pack-ilm-7.15.2.jar:7.15.2]",
"at org.elasticsearch.xpack.core.scheduler.SchedulerEngine.notifyListeners(SchedulerEngine.java:184) [x-pack-core-7.15.2.jar:7.15.2]",
"at org.elasticsearch.xpack.core.scheduler.SchedulerEngine$ActiveSchedule.run(SchedulerEngine.java:217) [x-pack-core-7.15.2.jar:7.15.2]",
"at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) [?:?]",
"at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]",
"at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304) [?:?]",
"at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136) [?:?]",
"at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635) [?:?]",
"at java.lang.Thread.run(Thread.java:833) [?:?]"] }
But it seems to me that this error has been occurred some time after the shard has broken.
This is my another problem because I wrote in all filebeat.yml:
setup.ilm.enabled: false
ilm.enabled: false
But ilm is still running and I can't disable it throught GUI.
I didn't think that these two problems are connected to each other. So, no more errors do exist in Elasticsearch logs.