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Zheng, Xiu 5b5876528a CSS UMN 22.5.1 Version 
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Co-authored-by: Zheng, Xiu <zhengxiu@huawei.com>
Co-committed-by: Zheng, Xiu <zhengxiu@huawei.com>
2023-03-29 17:17:49 +00:00

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What Are the Impacts If an Elasticsearch Cluster Has Too Many Shards?

  1. A large number of shards in a cluster slows down shard creation.
  2. If automatic index creation is enabled, slow index creation may cause a large number of write requests to be stacked in the memory or result in a cluster break down.
  3. If there are too many shards and you cannot properly monitor workloads, the number of records in a single shard may exceed the threshold, and write requests may be denied.