# Restart Elasticsearch cluster **URL:** \ **Category:** Elasticsearch\ **Created:** [November 2, 2020, 1:42pm UTC](https://discuss.elastic.co/t/restart-elasticsearch-cluster/254026 "2020-11-02T13:42:04Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![WLM](https://avatars.discourse-cdn.com/v4/letter/w/e274bd/32.png) [@WLM](https://discuss.elastic.co/u/WLM)\ **Post date:** [November 2, 2020, 1:42pm UTC](https://discuss.elastic.co/t/restart-elasticsearch-cluster/254026/1 "2020-11-02T13:42:04Z")
Hello I have 6 elasticsearch instanse are runnig in docker containers on 3 physical node. When one of the elasticsearch instanse is restrating, all of indexs become inaccessible. How i can fix it? Config of elasticsearch such: ```auto cluster.name: my-cluster node.attr.rack: r1 cluster.routing.allocation.awareness.attributes: rack_id bootstrap.memory_lock: true network.host: 192.168.1.2 discovery.zen.ping.unicast.hosts: - 192.168.1.2 - 192.168.1.3 - 192.168.1.4 - 192.168.1.5 - 192.168.1.6 - 192.168.1.7 discovery.zen.minimum_master_nodes: 4 cluster.initial_master_nodes: - node01 - node02 - node03 - node04 - node05 - node06 xpack.security.enabled: true xpack.security.transport.ssl.enabled: true xpack.security.transport.ssl.keystore.type: PKCS12 xpack.security.transport.ssl.verification_mode: certificate xpack.security.transport.ssl.keystore.path: cert.p12 xpack.security.transport.ssl.truststore.path: cert.p12 xpack.security.transport.ssl.truststore.type: PKCS12 # Auth method xpack: security: authc: realms: native: native1: order: 0 ``` ---
**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:** [November 2, 2020, 11:20pm UTC](https://discuss.elastic.co/t/restart-elasticsearch-cluster/254026/2 "2020-11-02T23:20:35Z")
What do the logs on the master show when you restart the node? ---
**Author:** ![WLM](https://avatars.discourse-cdn.com/v4/letter/w/e274bd/32.png) [@WLM](https://discuss.elastic.co/u/WLM)\ **Post date:** [November 3, 2020, 6:19am UTC](https://discuss.elastic.co/t/restart-elasticsearch-cluster/254026/3 "2020-11-03T06:19:16Z")
Elastic logging is not enabled, to enable it , need to restart the nodes. Rebooting each node makes the indexes unavailable for 30 minutes, which is critical for business ---
**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:** [November 3, 2020, 6:35am UTC](https://discuss.elastic.co/t/restart-elasticsearch-cluster/254026/4 "2020-11-03T06:35:09Z")
Are your indices configured to have a replica? ---
**Author:** ![WLM](https://avatars.discourse-cdn.com/v4/letter/w/e274bd/32.png) [@WLM](https://discuss.elastic.co/u/WLM)\ **Post date:** [November 3, 2020, 7:31am UTC](https://discuss.elastic.co/t/restart-elasticsearch-cluster/254026/5 "2020-11-03T07:31:27Z")
Yes, all indexes have a replica, but when one of the nodes is reloaded, all indexes go into UNASSIGNED status. Could it be due to the settings rack? ---
**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:** [November 3, 2020, 7:33am UTC](https://discuss.elastic.co/t/restart-elasticsearch-cluster/254026/6 "2020-11-03T07:33:34Z")
Yes, that could be the case. How is rack\_id set on the different nodes? How many replicas do you have configured? It also looks like you are setting the attribute `rack` but have instead specified `rack_id` to be used. Is this a copy-paste problem or actually in the config? ---
**Author:** ![WLM](https://avatars.discourse-cdn.com/v4/letter/w/e274bd/32.png) [@WLM](https://discuss.elastic.co/u/WLM)\ **Post date:** [November 3, 2020, 8:31am UTC](https://discuss.elastic.co/t/restart-elasticsearch-cluster/254026/7 "2020-11-03T08:31:22Z")
Yes, this is the actual config. I also noticed that this attribute differs from the one described here: > **[Cluster-level shard allocation and routing settings | Elasticsearch Reference...](https://www.elastic.co/guide/en/elasticsearch/reference/7.x/modules-cluster.html#shard-allocation-awareness)** One index has one replica. The settings on the other nodes are as follows: node01: node.attr.rack: r1 cluster.routing.allocation.awareness.attributes: rack\_id node02: node.attr.rack: r1 cluster.routing.allocation.awareness.attributes: rack\_id node03: node.attr.rack: r2 cluster.routing.allocation.awareness.attributes: rack\_id node04: node.attr.rack: r2 cluster.routing.allocation.awareness.attributes: rack\_id node05: node.attr.rack: r3 cluster.routing.allocation.awareness.attributes: rack\_id node06: node.attr.rack: r3 cluster.routing.allocation.awareness.attributes: rack\_id Nodes node01 and node02 are the first physical server, node03 and node04 are the second, node05 and node06 are the third ---
**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:** [November 3, 2020, 8:42am UTC](https://discuss.elastic.co/t/restart-elasticsearch-cluster/254026/8 "2020-11-03T08:42:47Z")
You need to correct that so it is consistent. ---
**Author:** ![WLM](https://avatars.discourse-cdn.com/v4/letter/w/e274bd/32.png) [@WLM](https://discuss.elastic.co/u/WLM)\ **Post date:** [November 9, 2020, 9:54am UTC](https://discuss.elastic.co/t/restart-elasticsearch-cluster/254026/9 "2020-11-09T09:54:24Z")
after I fixed parameter _node.attr.rack_ to _node.attr.rack\_id_, the replica indexes were at UNASSIGNED until I returned the parameter _node.attr.rack_ back. There was such an error in the log: _node does not contain the awareness attribute [rack]; required attributes cluster setting [cluster.routing.allocation.awareness.attributes=rack_ ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [December 7, 2020, 9:54am UTC](https://discuss.elastic.co/t/restart-elasticsearch-cluster/254026/10 "2020-12-07T09:54:28Z")
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