# Speed up shard rebalance

**URL:** <https://discuss.elastic.co/t/speed-up-shard-rebalance/144803>\
**Category:** Elasticsearch\
**Created:** [August 17, 2018, 2:19am UTC](https://discuss.elastic.co/t/speed-up-shard-rebalance/144803 "2018-08-17T02:19:18Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![stimur](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/stimur/32/34524_2.png) [@stimur](https://discuss.elastic.co/u/stimur)\
**Post date:** [August 17, 2018, 2:19am UTC](https://discuss.elastic.co/t/speed-up-shard-rebalance/144803/1 "2018-08-17T02:19:18Z")

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I couldn't find anything recent on this topic.

I have 4 data nodes, excluded one from routing

```
PUT _cluster/settings
{
  "transient" :{
      "cluster.routing.allocation.exclude._ip" : "10.32.130.87"
   }
}

```

and added 5th one to compensate for missing storage, while I replacing excluded node.

Now I have 5 servers, 8CPU each, 64 GB of RAM and 10GBps network interfaces (seating in AWS) barely loaded:  
I/O wait is about 2-5 % per core  
CPU is only 100% (out of 800)  
Network and disks are doing nothing

200+ shards are relocating, but I don't see much of a progress there. Any thoughts?

Thank you

---

<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:** [September 14, 2018, 2:19am UTC](https://discuss.elastic.co/t/speed-up-shard-rebalance/144803/2 "2018-09-14T02:19:29Z")

</div>

Closed on September 14, 2018, 2:19am UTC

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