I am establishing a cluster: 1 master node + 1 backup node. The cluster health status is red.
curl -X GET "localhost:9200/_cluster/health?pretty"
{
"cluster_name" : "Elasticsearch",
"status" : "red",
"timed_out" : false,
"number_of_nodes" : 2,
"number_of_data_nodes" : 2,
"active_primary_shards" : 22,
"active_shards" : 44,
"relocating_shards" : 0,
"initializing_shards" : 0,
"unassigned_shards" : 4,
"delayed_unassigned_shards" : 0,
"number_of_pending_tasks" : 0,
"number_of_in_flight_fetch" : 0,
"task_max_waiting_in_queue_millis" : 0,
"active_shards_percent_as_number" : 91.66666666666666
}
I have one index which is red.
curl -XGET localhost:9200/_cat/indices | grep -i red
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 2438 100 2438 0 0 238k 0 --:--:-- --:--:-- --:--:-- 238k
red open .geoip_databases zMiIvdOiSk-ffIbsN1aTew 1 1
But this index is system purpose. I cannot delete it.
curl -X DELETE "localhost:9200/.geoip_databases/"
{"error":{"root_cause":[{"type":"illegal_argument_exception","reason":"Indices [.geoip_databases] use and access is reserved for system operations"}],"type":"illegal_argument_exception","reason":"Indices [.geoip_databases] use and access is reserved for system operations"},"status":400}
How can I fix the red status issue? Thanks.
Welcome to our community! 
What version are you on?
What do your Elasticsearch logs show?
My Elasticsearch version is 7.14.1.
This is the health check result:
curl -X GET "localhost:9200/_cluster/health?pretty"
{
"cluster_name" : "Elasticsearch",
"status" : "red",
"timed_out" : false,
"number_of_nodes" : 2,
"number_of_data_nodes" : 2,
"active_primary_shards" : 30,
"active_shards" : 60,
"relocating_shards" : 0,
"initializing_shards" : 0,
"unassigned_shards" : 4,
"delayed_unassigned_shards" : 0,
"number_of_pending_tasks" : 0,
"number_of_in_flight_fetch" : 0,
"task_max_waiting_in_queue_millis" : 0,
"active_shards_percent_as_number" : 93.75
}
This is my unassigned shards info:
curl -X GET localhost:9200/_cat/shards?h=index,shard,prirep,state,unassigned.reason | grep UNASSIGNED
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 3580 100 3580 0 0 124k 0 --:--:-- --:--:-- --:--:-- 124k
.ds-ilm-history-5-2021.08.26-000002 0 p UNASSIGNED CLUSTER_RECOVERED
.ds-ilm-history-5-2021.08.26-000002 0 r UNASSIGNED REPLICA_ADDED
.geoip_databases 0 r UNASSIGNED REPLICA_ADDED
.geoip_databases 0 p UNASSIGNED CLUSTER_RECOVERED
I cannot do anything on these shards.
I have a warning a an error in the Elasticsearch.log file.
[WARN ][r.suppressed ] [node1] path: /.kibana_7.14.1/_doc/space%3Adefault, params: {index=.kibana_7.14.1, id=space:default}
org.elasticsearch.action.NoShardAvailableActionException: No shard available for [get [.kibana_7.14.1][_doc][space:default]: routing [null]]
at org.elasticsearch.action.support.single.shard.TransportSingleShardAction$AsyncSingleAction.perform(TransportSingleShardAction.java:208) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.action.support.single.shard.TransportSingleShardAction$AsyncSingleAction.start(TransportSingleShardAction.java:185) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.action.support.single.shard.TransportSingleShardAction.doExecute(TransportSingleShardAction.java:92) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.action.support.single.shard.TransportSingleShardAction.doExecute(TransportSingleShardAction.java:51) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:173) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.action.support.ActionFilter$Simple.apply(ActionFilter.java:42) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:171) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.xpack.security.action.filter.SecurityActionFilter.apply(SecurityActionFilter.java:122) [x-pack-security-7.14.1.jar:7.14.1]
at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:171) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.action.support.TransportAction.execute(TransportAction.java:149) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.action.support.TransportAction.execute(TransportAction.java:77) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.client.node.NodeClient.executeLocally(NodeClient.java:86) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.client.node.NodeClient.doExecute(NodeClient.java:66) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.client.support.AbstractClient.execute(AbstractClient.java:402) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.client.support.AbstractClient.get(AbstractClient.java:504) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.rest.action.document.RestGetAction.lambda$prepareRequest$0(RestGetAction.java:86) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.rest.BaseRestHandler.handleRequest(BaseRestHandler.java:106) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.xpack.security.rest.SecurityRestFilter.handleRequest(SecurityRestFilter.java:98) [x-pack-security-7.14.1.jar:7.14.1]
at org.elasticsearch.rest.RestController.dispatchRequest(RestController.java:274) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.rest.RestController.tryAllHandlers(RestController.java:356) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.rest.RestController.dispatchRequest(RestController.java:195) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.http.AbstractHttpServerTransport.dispatchRequest(AbstractHttpServerTransport.java:471) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.http.AbstractHttpServerTransport.handleIncomingRequest(AbstractHttpServerTransport.java:536) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.http.AbstractHttpServerTransport.incomingRequest(AbstractHttpServerTransport.java:398) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.http.netty4.Netty4HttpRequestHandler.channelRead0(Netty4HttpRequestHandler.java:31) [transport-netty4-client-7.14.1.jar:7.14.1]
at org.elasticsearch.http.netty4.Netty4HttpRequestHandler.channelRead0(Netty4HttpRequestHandler.java:17) [transport-netty4-client-7.14.1.jar:7.14.1]
at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at org.elasticsearch.http.netty4.Netty4HttpPipeliningHandler.channelRead(Netty4HttpPipeliningHandler.java:47) [transport-netty4-client-7.14.1.jar:7.14.1]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) [netty-codec-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) [netty-codec-4.1.49.Final.jar:4.1.49.Final]
at io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111) [netty-codec-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) [netty-codec-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) [netty-codec-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:324) [netty-codec-4.1.49.Final.jar:4.1.49.Final]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:296) [netty-codec-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:286) [netty-handler-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) [netty-codec-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:714) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:615) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:578) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) [netty-transport-4.1.49.Final.jar:4.1.49.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) [netty-common-4.1.49.Final.jar:4.1.49.Final]
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) [netty-common-4.1.49.Final.jar:4.1.49.Final]
at java.lang.Thread.run(Thread.java:831) [?:?]
[ERROR][o.e.i.g.GeoIpDownloader ] [node1] error updating geoip database [GeoLite2-ASN.mmdb]
org.elasticsearch.action.UnavailableShardsException: [.geoip_databases][0] primary shard is not active Timeout: [1m], request: [BulkShardRequest [[.geoip_databases][0]] containing [index {[.geoip_databases][_doc][GeoLite2-ASN.mmdb_20_1631797749539], source[n/a, actual length: [1mb], max length: 2kb]}]]
at org.elasticsearch.action.support.replication.TransportReplicationAction$ReroutePhase.retryBecauseUnavailable(TransportReplicationAction.java:885) ~[elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.action.support.replication.TransportReplicationAction$ReroutePhase.doRun(TransportReplicationAction.java:735) ~[elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:26) [elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.action.support.replication.TransportReplicationAction$ReroutePhase$2.onTimeout(TransportReplicationAction.java:845) ~[elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.cluster.ClusterStateObserver$ContextPreservingListener.onTimeout(ClusterStateObserver.java:324) ~[elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.cluster.ClusterStateObserver$ObserverClusterStateListener.onTimeout(ClusterStateObserver.java:241) ~[elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.cluster.service.ClusterApplierService$NotifyTimeout.run(ClusterApplierService.java:590) ~[elasticsearch-7.14.1.jar:7.14.1]
at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:673) ~[elasticsearch-7.14.1.jar:7.14.1]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) [?:?]
at java.lang.Thread.run(Thread.java:831) [?:?]
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