# Problem with unassigned \_percolator shard **URL:** \ **Category:** Elasticsearch\ **Created:** [December 21, 2012, 4:58pm UTC](https://discuss.elastic.co/t/problem-with-unassigned--percolator-shard/10158 "2012-12-21T16:58:01Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Toni\_Birrer](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/toni_birrer/32/2566_2.png) [@Toni\_Birrer](https://discuss.elastic.co/u/Toni_Birrer)\ **Post date:** [December 21, 2012, 4:58pm UTC](https://discuss.elastic.co/t/problem-with-unassigned--percolator-shard/10158/1 "2012-12-21T16:58:01Z")
Hi, I have a elasticsearch cluster (0.19.11) consisting of 4 nodes on amazon ec2 with replica level set to 3. Now i've added a 5. node, and the cluster went immediately into yellow state. The reason is that cluster has a unassigned \_percolator shard. In the log of the new node i can see: [2012-12-21 16:34:41,065][DEBUG][indices.store] [elastic40] [\_percolator][0] deleting shard that is no longer used but why is that? my understanding is that the \_percolator shard should be on each node? Or am i missing something? another maybe related issue is that had allocation awareness settings for my cluster set and its unclear to me how to remove these settings. e.g. "cluster.routing.allocation.awareness.attributes" : "datacenter", "cluster.routing.allocation.awareness.force.datacenter.values" : "us\_east\_1a\_ec2,us\_east\_1b\_ec2,us\_east\_1c\_ec2,us\_east\_1d\_ec2", The documentation explains how go get und set these settings, but now how to delete. I've set these two values to "" in an attempt to delete them, but shoul the allocation force option still effective, it might maybe explain the unallocated \_percolator shard. What is the right way to delete these \_cluster settings? Regards, Toni -- ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 2:58am UTC](https://discuss.elastic.co/t/problem-with-unassigned--percolator-shard/10158/2 "2017-07-06T02:58:43Z")
Closed on July 6, 2017, 2:58am UTC