# Unassigned shards delaying allocation

**URL:** <https://discuss.elastic.co/t/unassigned-shards-delaying-allocation/32251>\
**Category:** Elasticsearch\
**Created:** [October 15, 2015, 9:02am UTC](https://discuss.elastic.co/t/unassigned-shards-delaying-allocation/32251 "2015-10-15T09:02:02Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![it2](https://avatars.discourse-cdn.com/v4/letter/i/f14d63/32.png) [@it2](https://discuss.elastic.co/u/it2)\
**Post date:** [October 15, 2015, 9:02am UTC](https://discuss.elastic.co/t/unassigned-shards-delaying-allocation/32251/1 "2015-10-15T09:02:02Z")

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Hi guys!  
I have a ES cluster with 6 nodes,  
today two of these nodes was down, hosts were rebooted  
After that i see a lot of uassigned shards in KOPF.

 ![](https://us1.discourse-cdn.com/elastic/original/2X/8/88a57b627ab1d642da0b72c94a794e1c2c86afaa.png)  
and a lot of messages in logs:

```
> [2015-10-15 11:55:12,765][INFO][cluster.routing] [master] delaying allocation for [0] unassigned shards, next check in [0s]

```

also i want to say that three nodes havenot space on disk, they are in readonly

```
[2015-10-15 11:53:49,270][INFO][cluster.routing.allocation.decider] [master] high disk watermark exceeded on one or more nodes, rerouting shards
[2015-10-15 11:54:49,253][WARN][cluster.routing.allocation.decider] [master] high disk watermark [20gb] exceeded on [N9Z7j6TbQjaSdIkBIHoSgw][data3] free: 18gb[0.8%], shards will be relocated away from this node

```

What can I do to resolve this problem?  
Thanks!

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<div class="post-metadata">

**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\
**Post date:** [October 15, 2015, 9:07am UTC](https://discuss.elastic.co/t/unassigned-shards-delaying-allocation/32251/2 "2015-10-15T09:07:12Z")

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The hosts that were rebooted, are shards not being allocated on them? Is the low disk space condition on the other nodes?

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<div class="post-metadata">

**Author:** ![it2](https://avatars.discourse-cdn.com/v4/letter/i/f14d63/32.png) [@it2](https://discuss.elastic.co/u/it2)\
**Post date:** [October 15, 2015, 9:24am UTC](https://discuss.elastic.co/t/unassigned-shards-delaying-allocation/32251/3 "2015-10-15T09:24:55Z")

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Now all cluster looks green, strange...  
In 4 hours there were unassigned shards...  
Where can I trace what was happened?

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 5, 2017, 11:44pm UTC](https://discuss.elastic.co/t/unassigned-shards-delaying-allocation/32251/4 "2017-07-05T23:44:39Z")

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