After updating our single node environment to 6.7.0 we've been unable to get it started. I'm seeing this error below. I've been googling but I have no idea what it means or what has gone wrong with the update.
This isn't the end of the world. I am only bringing this out of Dev but as nothing has changed (other than the upgrade) I'm really puzzled about what caused this.
Here's the error message.
org.elasticsearch.cluster.block.ClusterBlockException: blocked by: [SERVICE_UNAVAILABLE/1/state not recovered / initialized];
at org.elasticsearch.cluster.block.ClusterBlocks.globalBlockedException(ClusterBlocks.java:191) ~[elasticsearch-6.7.0.jar:6.7.0]
at org.elasticsearch.action.support.single.shard.TransportSingleShardAction.checkGlobalBlock(TransportSingleShardAction.java:125) ~[elasticsearch-6.7.0.jar:6.7.0]
at org.elasticsearch.action.support.single.shard.TransportSingleShardAction$AsyncSingleAction.<init>(TransportSingleShardAction.java:159) ~[elasticsearch-6.7.0.jar:6.7.0]
at org.elasticsearch.action.support.single.shard.TransportSingleShardAction$AsyncSingleAction.<init>(TransportSingleShardAction.java:143) ~[elasticsearch-6.7.0.jar:6.7.0]
at org.elasticsearch.action.support.single.shard.TransportSingleShardAction.doExecute(TransportSingleShardAction.java:100) ~[elasticsearch-6.7.0.jar:6.7.0]
at org.elasticsearch.action.support.single.shard.TransportSingleShardAction.doExecute(TransportSingleShardAction.java:62) ~[elasticsearch-6.7.0.jar:6.7.0]
at org.elasticsearch.action.support.TransportAction.doExecute(TransportAction.java:143) ~[elasticsearch-6.7.0.jar:6.7.0]
at org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:167) ~[elasticsearch-6.7.0.jar:6.7.0]
at org.elasticsearch.action.support.TransportAction.execute(TransportAction.java:139) ~[elasticsearch-6.7.0.jar:6.7.0]
at org.elasticsearch.action.support.TransportAction.execute(TransportAction.java:81) ~[elasticsearch-6.7.0.jar:6.7.0]
at org.elasticsearch.client.node.NodeClient.executeLocally(NodeClient.java:87) ~[elasticsearch-6.7.0.jar:6.7.0]
at org.elasticsearch.client.node.NodeClient.doExecute(NodeClient.java:76) ~[elasticsearch-6.7.0.jar:6.7.0]
at org.elasticsearch.client.support.AbstractClient.execute(AbstractClient.java:403) ~[elasticsearch-6.7.0.jar:6.7.0]
at org.elasticsearch.client.support.AbstractClient.get(AbstractClient.java:502) ~[elasticsearch-6.7.0.jar:6.7.0]
at org.elasticsearch.rest.action.document.RestGetAction.lambda$prepareRequest$0(RestGetAction.java:81) ~[elasticsearch-6.7.0.jar:6.7.0]
at org.elasticsearch.rest.BaseRestHandler.handleRequest(BaseRestHandler.java:115) [elasticsearch-6.7.0.jar:6.7.0]
at org.elasticsearch.rest.RestController.dispatchRequest(RestController.java:240) [elasticsearch-6.7.0.jar:6.7.0]
at org.elasticsearch.rest.RestController.tryAllHandlers(RestController.java:336) [elasticsearch-6.7.0.jar:6.7.0]
at org.elasticsearch.rest.RestController.dispatchRequest(RestController.java:174) [elasticsearch-6.7.0.jar:6.7.0]
at org.elasticsearch.http.netty4.Netty4HttpServerTransport.dispatchRequest(Netty4HttpServerTransport.java:551) [transport-netty4-client-6.7.0.jar:6.7.0]
at org.elasticsearch.http.netty4.Netty4HttpRequestHandler.channelRead0(Netty4HttpRequestHandler.java:137) [transport-netty4-client-6.7.0.jar:6.7.0]
at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
at org.elasticsearch.http.netty4.pipelining.HttpPipeliningHandler.channelRead(HttpPipeliningHandler.java:68) [transport-netty4-client-6.7.0.jar:6.7.0]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) [netty-codec-4.1.32.Final.jar:4.1.32.Final]
at io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111) [netty-codec-4.1.32.Final.jar:4.1.32.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) [netty-codec-4.1.32.Final.jar:4.1.32.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102) [netty-codec-4.1.32.Final.jar:4.1.32.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:362) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:340) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
atgoogling suggests that it's something to do with zen discovery and/or gateway recovery.
Here's the relevant parts.
discovery.zen.minimum_master_nodes: 1
gateway.recover_after_nodes: 1
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