# ElasticSearch freezes suddenly and unable to respond

**URL:** <https://discuss.elastic.co/t/elasticsearch-freezes-suddenly-and-unable-to-respond/284256>\
**Category:** Elasticsearch\
**Created:** [September 15, 2021, 7:45am UTC](https://discuss.elastic.co/t/elasticsearch-freezes-suddenly-and-unable-to-respond/284256 "2021-09-15T07:45:57Z")\
**Posts on this page:** 13\
**Page:** 1

<div class="post-metadata">

**Author:** ![Vishal\_Goel](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vishal_goel/32/46581_2.png) [@Vishal\_Goel](https://discuss.elastic.co/u/Vishal_Goel)\
**Post date:** [September 15, 2021, 7:45am UTC](https://discuss.elastic.co/t/elasticsearch-freezes-suddenly-and-unable-to-respond/284256/1 "2021-09-15T07:45:57Z")

</div>

Hi,

We have ES OSS 7.0 running for more than couple of months. In last 15 days, ES froze and became very slow. It is almost unable to process any request.

```auto
Setup:
Single Node, Windows VM, 16 cores, 32GB RAM, ES Xmx 4G, Total ES indices data ~2GB.

```

Symptoms:  
During both of the occurences, we noticed below:

1. ES logs start showing slowness symptom with following lines  
failed to update shard information for clusterinfoupdatejob within 15s timeout  
failed to update node information for clusterinfoupdatejob within 15s timeout

2. After sometime, index requests start getting timed out. We use ES high level rest client which starts getting timed out after 30 seconds.

3. After sometime of this, ES start rejecting request as its request\_queue size becomes full (200).

We did monitor the machine and ES at the time of issue:  
ES -\> All shards are yellow or green. No red shards. Querying /hot\_threads api gets timed out. Even sometime, node statistics are timed out or unresponsive. Checking node statistics data, we did not find anything alarming except rejection count.

Windows -\> We don't see any high pressure on cpu, memory. Disk I/O is also quite OK. Nothing extraordinary here, except some antivirus running.

Logs:

```auto
[WARN][o.e.c.InternalClusterInfoService] Failed to update node information for ClusterInfoUpdateJob within 15s timeout
[ERROR][o.e.a.b.TransportBulkAction] failed to execute pipeline for a bulk request

org.elasticsearch.common.util.concurrent.EsRejectedExecutionException: rejected execution of [org.elasticsearch.ingest.IngestService$4@13da6e35](mailto:org.elasticsearch.ingest.IngestService$4@13da6e35) on EsThreadPoolExecutor[name = redacted/write, queue capacity = 200, [org.elasticsearch.common.util.concurrent.EsThreadPoolExecutor@bed0d28[Running](mailto:org.elasticsearch.common.util.concurrent.EsThreadPoolExecutor@bed0d28[Running), pool size = 16, active threads = 16, queued tasks = 200, completed tasks = 1158236]]

```

We are unable to get around what can cause this issue. It seems that ES is stuck or very slow due to some reason and unable to recover even after 2-3 days.

/\_cluster/stats ouutput at the time of issue: [ES \_/cluster/stats - Pastebin.com](https://pastebin.com/JyBZFM1P)

How can we further debug on this issue?

---

<div class="post-metadata">

**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [September 15, 2021, 9:07am UTC](https://discuss.elastic.co/t/elasticsearch-freezes-suddenly-and-unable-to-respond/284256/2 "2021-09-15T09:07:26Z")

</div>

How much data do you have in the cluster? How many indices and shards do you have in the cluster?

---

<div class="post-metadata">

**Author:** ![Vishal\_Goel](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vishal_goel/32/46581_2.png) [@Vishal\_Goel](https://discuss.elastic.co/u/Vishal_Goel)\
**Post date:** [September 15, 2021, 9:26am UTC](https://discuss.elastic.co/t/elasticsearch-freezes-suddenly-and-unable-to-respond/284256/3 "2021-09-15T09:26:14Z")

</div>

Hi,

Total data \<3GB  
# of Indices -\> 15, one shard per index  
One node in a cluster.

---

<div class="post-metadata">

**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [September 15, 2021, 10:09pm UTC](https://discuss.elastic.co/t/elasticsearch-freezes-suddenly-and-unable-to-respond/284256/4 "2021-09-15T22:09:22Z")

</div>

7.0 is long past [EOL](https://www.elastic.co/support/eol), please upgrade ASAP.

What is the output from the `_cluster/stats?pretty&human` API?

---

<div class="post-metadata">

**Author:** ![Vishal\_Goel](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vishal_goel/32/46581_2.png) [@Vishal\_Goel](https://discuss.elastic.co/u/Vishal_Goel)\
**Post date:** [September 16, 2021, 4:09am UTC](https://discuss.elastic.co/t/elasticsearch-freezes-suddenly-and-unable-to-respond/284256/5 "2021-09-16T04:09:30Z")

</div>

Hi @MarkWalkom, I have updated the question with \_cluster/stats o/p. I don't see anything out of oridnary here except the rejected count for indexing. We are planning to upgrade to ES7.10 but want to make sure that we understand the issue first.

---

<div class="post-metadata">

**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [September 16, 2021, 4:14am UTC](https://discuss.elastic.co/t/elasticsearch-freezes-suddenly-and-unable-to-respond/284256/6 "2021-09-16T04:14:06Z")

</div>

You would be far better off upgrading to 7.14, as it's latest.

---

<div class="post-metadata">

**Author:** ![Vishal\_Goel](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vishal_goel/32/46581_2.png) [@Vishal\_Goel](https://discuss.elastic.co/u/Vishal_Goel)\
**Post date:** [September 16, 2021, 4:28am UTC](https://discuss.elastic.co/t/elasticsearch-freezes-suddenly-and-unable-to-respond/284256/7 "2021-09-16T04:28:34Z")

</div>

Ok, we will check on that.  
Anyway, any insight on this issue?

---

<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [September 16, 2021, 5:03am UTC](https://discuss.elastic.co/t/elasticsearch-freezes-suddenly-and-unable-to-respond/284256/8 "2021-09-16T05:03:59Z")

</div>

So many things have been fixed since 7.0. I'd upgrade and see if this fixes the problem you are seeing.

---

<div class="post-metadata">

**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [September 16, 2021, 5:10am UTC](https://discuss.elastic.co/t/elasticsearch-freezes-suddenly-and-unable-to-respond/284256/9 "2021-09-16T05:10:45Z")

</div>

I would recommend temporarily disabling antivirus to see if that has any impact. Have seen some types of antivirus have huge impact on write performance in the past and indexing is quite I/O intensive.

---

<div class="post-metadata">

**Author:** ![Vishal\_Goel](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vishal_goel/32/46581_2.png) [@Vishal\_Goel](https://discuss.elastic.co/u/Vishal_Goel)\
**Post date:** [September 17, 2021, 7:44am UTC](https://discuss.elastic.co/t/elasticsearch-freezes-suddenly-and-unable-to-respond/284256/10 "2021-09-17T07:44:49Z")

</div>

Ok. We will check after upgrading to latest ES version.  
At the time of issue, I can see from windows event log, antivirus was running. And antivirus run for 3-4 hours and then stopped.  
Is it possible that it permanently slowed down ES and ES could not recover fom it even after 2-3 days?  
We need to restart ES to solve the issue.

---

<div class="post-metadata">

**Author:** ![Vishal\_Goel](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vishal_goel/32/46581_2.png) [@Vishal\_Goel](https://discuss.elastic.co/u/Vishal_Goel)\
**Post date:** [October 8, 2021, 1:52am UTC](https://discuss.elastic.co/t/elasticsearch-freezes-suddenly-and-unable-to-respond/284256/12 "2021-10-08T01:52:10Z")

</div>

Hi All,

We did not yet upgrade ES version (due to some other issues, still 7.0) and the issue popped up again.  
This time, we could capture the hot\_threads output.  
Can we get any idea from it, what went wrong here. From the face of it, seems like threads are stuck at Disk I/O. Just note that this ES server is running on VMWare Windows VM.

Any help would be very much appreciated.

```auto
Hot threads at 2021-10-06T16:01:16.482Z, interval=500ms, busiestThreads=3, ignoreIdleThreads=true:
   
    9.4% (46.8ms out of 500ms) cpu usage by thread 'elasticsearch[hostxxx][snapshot][T#16]'
     10/10 snapshots sharing following 19 elements
       sun.nio.fs.WindowsNativeDispatcher.CreateFile0(Native Method)
       sun.nio.fs.WindowsNativeDispatcher.CreateFile(WindowsNativeDispatcher.java:71)
       sun.nio.fs.WindowsChannelFactory.open(WindowsChannelFactory.java:302)
       sun.nio.fs.WindowsChannelFactory.newFileChannel(WindowsChannelFactory.java:162)
       sun.nio.fs.WindowsFileSystemProvider.newByteChannel(WindowsFileSystemProvider.java:225)
       java.nio.file.spi.FileSystemProvider.newOutputStream(FileSystemProvider.java:434)
       java.nio.file.Files.newOutputStream(Files.java:216)
       org.elasticsearch.common.blobstore.fs.FsBlobContainer.writeBlob(FsBlobContainer.java:132)
       org.elasticsearch.repositories.blobstore.BlobStoreRepository$SnapshotContext.snapshotFile(BlobStoreRepository.java:1335)
       org.elasticsearch.repositories.blobstore.BlobStoreRepository$SnapshotContext.snapshot(BlobStoreRepository.java:1274)
       org.elasticsearch.repositories.blobstore.BlobStoreRepository.snapshotShard(BlobStoreRepository.java:846)
       org.elasticsearch.snapshots.SnapshotShardsService.snapshot(SnapshotShardsService.java:368)
       org.elasticsearch.snapshots.SnapshotShardsService.access$200(SnapshotShardsService.java:93)
       org.elasticsearch.snapshots.SnapshotShardsService$1.doRun(SnapshotShardsService.java:314)
       org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:751)
       org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)
       java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
       java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
       java.lang.Thread.run(Thread.java:748)
   
    6.3% (31.2ms out of 500ms) cpu usage by thread 'elasticsearch[hostxxx][snapshot][T#15]'
     10/10 snapshots sharing following 19 elements
       sun.nio.fs.WindowsNativeDispatcher.CreateFile0(Native Method)
       sun.nio.fs.WindowsNativeDispatcher.CreateFile(WindowsNativeDispatcher.java:71)
       sun.nio.fs.WindowsChannelFactory.open(WindowsChannelFactory.java:302)
       sun.nio.fs.WindowsChannelFactory.newFileChannel(WindowsChannelFactory.java:162)
       sun.nio.fs.WindowsFileSystemProvider.newByteChannel(WindowsFileSystemProvider.java:225)
       java.nio.file.spi.FileSystemProvider.newOutputStream(FileSystemProvider.java:434)
       java.nio.file.Files.newOutputStream(Files.java:216)
       org.elasticsearch.common.blobstore.fs.FsBlobContainer.writeBlob(FsBlobContainer.java:132)
       org.elasticsearch.repositories.blobstore.BlobStoreRepository$SnapshotContext.snapshotFile(BlobStoreRepository.java:1335)
       org.elasticsearch.repositories.blobstore.BlobStoreRepository$SnapshotContext.snapshot(BlobStoreRepository.java:1274)
       org.elasticsearch.repositories.blobstore.BlobStoreRepository.snapshotShard(BlobStoreRepository.java:846)
       org.elasticsearch.snapshots.SnapshotShardsService.snapshot(SnapshotShardsService.java:368)
       org.elasticsearch.snapshots.SnapshotShardsService.access$200(SnapshotShardsService.java:93)
       org.elasticsearch.snapshots.SnapshotShardsService$1.doRun(SnapshotShardsService.java:314)
       org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:751)
       org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)
       java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
       java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
       java.lang.Thread.run(Thread.java:748)
   
    6.3% (31.2ms out of 500ms) cpu usage by thread 'elasticsearch[hostxxx][write][T#4]'
     4/10 snapshots sharing following 63 elements
       sun.nio.fs.WindowsNativeDispatcher.CreateFile0(Native Method)
       sun.nio.fs.WindowsNativeDispatcher.CreateFile(WindowsNativeDispatcher.java:71)
       sun.nio.fs.WindowsChannelFactory.open(WindowsChannelFactory.java:302)
       sun.nio.fs.WindowsChannelFactory.newFileChannel(WindowsChannelFactory.java:162)
       sun.nio.fs.WindowsFileSystemProvider.newByteChannel(WindowsFileSystemProvider.java:225)
       java.nio.file.spi.FileSystemProvider.newOutputStream(FileSystemProvider.java:434)
       java.nio.file.Files.newOutputStream(Files.java:216)
       org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:411)
       org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:407)
       org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:255)
       org.apache.lucene.store.FilterDirectory.createOutput(FilterDirectory.java:74)
       org.elasticsearch.index.store.ByteSizeCachingDirectory.createOutput(ByteSizeCachingDirectory.java:130)
       org.apache.lucene.store.FilterDirectory.createOutput(FilterDirectory.java:74)
       org.apache.lucene.store.LockValidatingDirectoryWrapper.createOutput(LockValidatingDirectoryWrapper.java:44)
       org.apache.lucene.store.TrackingDirectoryWrapper.createOutput(TrackingDirectoryWrapper.java:43)
       org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.<init>(CompressingStoredFieldsWriter.java:112)
       org.apache.lucene.codecs.compressing.CompressingStoredFieldsFormat.fieldsWriter(CompressingStoredFieldsFormat.java:128)
       org.apache.lucene.codecs.lucene50.Lucene50StoredFieldsFormat.fieldsWriter(Lucene50StoredFieldsFormat.java:183)
       org.apache.lucene.index.StoredFieldsConsumer.initStoredFieldsWriter(StoredFieldsConsumer.java:39)
       org.apache.lucene.index.StoredFieldsConsumer.startDocument(StoredFieldsConsumer.java:46)
       org.apache.lucene.index.DefaultIndexingChain.startStoredFields(DefaultIndexingChain.java:366)
       org.apache.lucene.index.DefaultIndexingChain.processDocument(DefaultIndexingChain.java:402)
       org.apache.lucene.index.DocumentsWriterPerThread.updateDocument(DocumentsWriterPerThread.java:251)
       org.apache.lucene.index.DocumentsWriter.updateDocument(DocumentsWriter.java:494)
       org.apache.lucene.index.IndexWriter.updateDocument(IndexWriter.java:1594)
       org.apache.lucene.index.IndexWriter.softUpdateDocument(IndexWriter.java:1654)
       org.elasticsearch.index.engine.InternalEngine.updateDocs(InternalEngine.java:1204)
       org.elasticsearch.index.engine.InternalEngine.indexIntoLucene(InternalEngine.java:1033)
       org.elasticsearch.index.engine.InternalEngine.index(InternalEngine.java:864)
       org.elasticsearch.index.shard.IndexShard.index(IndexShard.java:789)
       org.elasticsearch.index.shard.IndexShard.applyIndexOperation(IndexShard.java:762)
       org.elasticsearch.index.shard.IndexShard.applyIndexOperationOnPrimary(IndexShard.java:719)
       org.elasticsearch.action.bulk.TransportShardBulkAction.lambda$executeIndexRequestOnPrimary$3(TransportShardBulkAction.java:452)
       org.elasticsearch.action.bulk.TransportShardBulkAction$$Lambda$2452/1179146316.get(Unknown Source)
       org.elasticsearch.action.bulk.TransportShardBulkAction.executeOnPrimaryWhileHandlingMappingUpdates(TransportShardBulkAction.java:475)
       org.elasticsearch.action.bulk.TransportShardBulkAction.executeIndexRequestOnPrimary(TransportShardBulkAction.java:450)
       org.elasticsearch.action.bulk.TransportShardBulkAction.executeBulkItemRequest(TransportShardBulkAction.java:218)
       org.elasticsearch.action.bulk.TransportShardBulkAction.performOnPrimary(TransportShardBulkAction.java:161)
       org.elasticsearch.action.bulk.TransportShardBulkAction.performOnPrimary(TransportShardBulkAction.java:153)
       org.elasticsearch.action.bulk.TransportShardBulkAction.shardOperationOnPrimary(TransportShardBulkAction.java:141)
       org.elasticsearch.action.bulk.TransportShardBulkAction.shardOperationOnPrimary(TransportShardBulkAction.java:79)
       org.elasticsearch.action.support.replication.TransportReplicationAction$PrimaryShardReference.perform(TransportReplicationAction.java:1033)
       org.elasticsearch.action.support.replication.TransportReplicationAction$PrimaryShardReference.perform(TransportReplicationAction.java:1011)
       org.elasticsearch.action.support.replication.ReplicationOperation.execute(ReplicationOperation.java:105)
       org.elasticsearch.action.support.replication.TransportReplicationAction$AsyncPrimaryAction.runWithPrimaryShardReference(TransportReplicationAction.java:413)
       org.elasticsearch.action.support.replication.TransportReplicationAction$AsyncPrimaryAction.lambda$doRun$0(TransportReplicationAction.java:359)
       org.elasticsearch.action.support.replication.TransportReplicationAction$AsyncPrimaryAction$$Lambda$2340/749012392.accept(Unknown Source)
       org.elasticsearch.action.ActionListener$1.onResponse(ActionListener.java:61)
       org.elasticsearch.index.shard.IndexShardOperationPermits.acquire(IndexShardOperationPermits.java:269)
       org.elasticsearch.index.shard.IndexShardOperationPermits.acquire(IndexShardOperationPermits.java:236)
       org.elasticsearch.index.shard.IndexShard.acquirePrimaryOperationPermit(IndexShard.java:2512)
       org.elasticsearch.action.support.replication.TransportReplicationAction.acquirePrimaryOperationPermit(TransportReplicationAction.java:970)
       org.elasticsearch.action.support.replication.TransportReplicationAction$AsyncPrimaryAction.doRun(TransportReplicationAction.java:358)
       org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)
       org.elasticsearch.action.support.replication.TransportReplicationAction$PrimaryOperationTransportHandler.messageReceived(TransportReplicationAction.java:313)
       org.elasticsearch.action.support.replication.TransportReplicationAction$PrimaryOperationTransportHandler.messageReceived(TransportReplicationAction.java:305)
       org.elasticsearch.transport.RequestHandlerRegistry.processMessageReceived(RequestHandlerRegistry.java:63)
       org.elasticsearch.transport.TransportService$7.doRun(TransportService.java:687)
       org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:751)
       org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)
       java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
       java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
       java.lang.Thread.run(Thread.java:748)
     6/10 snapshots sharing following 63 elements
       sun.nio.fs.WindowsNativeDispatcher.CreateFile0(Native Method)
       sun.nio.fs.WindowsNativeDispatcher.CreateFile(WindowsNativeDispatcher.java:71)
       sun.nio.fs.WindowsChannelFactory.open(WindowsChannelFactory.java:302)
       sun.nio.fs.WindowsChannelFactory.newFileChannel(WindowsChannelFactory.java:162)
       sun.nio.fs.WindowsFileSystemProvider.newByteChannel(WindowsFileSystemProvider.java:225)
       java.nio.file.spi.FileSystemProvider.newOutputStream(FileSystemProvider.java:434)
       java.nio.file.Files.newOutputStream(Files.java:216)
       org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:411)
       org.apache.lucene.store.FSDirectory$FSIndexOutput.<init>(FSDirectory.java:407)
       org.apache.lucene.store.FSDirectory.createOutput(FSDirectory.java:255)
       org.apache.lucene.store.FilterDirectory.createOutput(FilterDirectory.java:74)
       org.elasticsearch.index.store.ByteSizeCachingDirectory.createOutput(ByteSizeCachingDirectory.java:130)
       org.apache.lucene.store.FilterDirectory.createOutput(FilterDirectory.java:74)
       org.apache.lucene.store.LockValidatingDirectoryWrapper.createOutput(LockValidatingDirectoryWrapper.java:44)
       org.apache.lucene.store.TrackingDirectoryWrapper.createOutput(TrackingDirectoryWrapper.java:43)
       org.apache.lucene.codecs.compressing.CompressingStoredFieldsWriter.<init>(CompressingStoredFieldsWriter.java:115)
       org.apache.lucene.codecs.compressing.CompressingStoredFieldsFormat.fieldsWriter(CompressingStoredFieldsFormat.java:128)
       org.apache.lucene.codecs.lucene50.Lucene50StoredFieldsFormat.fieldsWriter(Lucene50StoredFieldsFormat.java:183)

       
       }]

```

---

<div class="post-metadata">

**Author:** ![Vishal\_Goel](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/vishal_goel/32/46581_2.png) [@Vishal\_Goel](https://discuss.elastic.co/u/Vishal_Goel)\
**Post date:** [October 8, 2021, 3:52am UTC](https://discuss.elastic.co/t/elasticsearch-freezes-suddenly-and-unable-to-respond/284256/13 "2021-10-08T03:52:12Z")

</div>

Hi @dadoonet ,  
Please moderate the post. I have already flagged it with the reason.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [November 5, 2021, 3:52am UTC](https://discuss.elastic.co/t/elasticsearch-freezes-suddenly-and-unable-to-respond/284256/14 "2021-11-05T03:52:19Z")

</div>

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