index 'index_prefix' can only be lowercase

[jalogisch]

Expected Behavior

What you can insert into the GUI as index_prefix can be used and will be valid. For all non valid options you should get an error.

Current Behavior

You are able to use UPPERCASE in this field, but that will not work in the end. If a User did not check the Logfile he only notice that something might be wrong, because ES Offloading is disabled (but no error is shown)

Logfile

2017-02-09T15:35:34.805+01:00 INFO  [MongoIndexSet] Did not find an deflector alias. Setting one up now.
2017-02-09T15:35:34.806+01:00 INFO  [MongoIndexSet] There is no index target to point to. Creating one now.
2017-02-09T15:35:34.809+01:00 INFO  [MongoIndexSet] Cycling from <none> to <HAM_0>.
2017-02-09T15:35:34.809+01:00 INFO  [MongoIndexSet] Creating target index <HAM_0>.
2017-02-09T15:35:34.827+01:00 ERROR [Indices] Unable to create the Graylog index template: HAM-template
org.elasticsearch.indices.InvalidIndexTemplateException: index_template [HAM-template] invalid, cause [Validation Failed: 1: name must be lower cased;]
	at org.elasticsearch.cluster.metadata.MetaDataIndexTemplateService.validate(MetaDataIndexTemplateService.java:260) ~[graylog.jar:?]
	at org.elasticsearch.cluster.metadata.MetaDataIndexTemplateService.putTemplate(MetaDataIndexTemplateService.java:131) ~[graylog.jar:?]
	at org.elasticsearch.action.admin.indices.template.put.TransportPutIndexTemplateAction.masterOperation(TransportPutIndexTemplateAction.java:73) ~[graylog.jar:?]
	at org.elasticsearch.action.admin.indices.template.put.TransportPutIndexTemplateAction.masterOperation(TransportPutIndexTemplateAction.java:38) ~[graylog.jar:?]
	at org.elasticsearch.action.support.master.TransportMasterNodeAction.masterOperation(TransportMasterNodeAction.java:98) ~[graylog.jar:?]
	at org.elasticsearch.action.support.master.TransportMasterNodeAction$AsyncSingleAction$3.doRun(TransportMasterNodeAction.java:185) ~[graylog.jar:?]
	at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37) ~[graylog.jar:?]
	at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:457) ~[graylog.jar:?]
	at org.elasticsearch.action.support.master.TransportMasterNodeAction$AsyncSingleAction.doStart(TransportMasterNodeAction.java:182) ~[graylog.jar:?]
	at org.elasticsearch.action.support.master.TransportMasterNodeAction$AsyncSingleAction.start(TransportMasterNodeAction.java:148) ~[graylog.jar:?]
	at org.elasticsearch.action.support.master.TransportMasterNodeAction.doExecute(TransportMasterNodeAction.java:115) ~[graylog.jar:?]
	at org.elasticsearch.action.support.master.TransportMasterNodeAction.doExecute(TransportMasterNodeAction.java:50) ~[graylog.jar:?]
	at org.elasticsearch.action.support.TransportAction.execute(TransportAction.java:137) ~[graylog.jar:?]
	at org.elasticsearch.action.support.HandledTransportAction$TransportHandler.messageReceived(HandledTransportAction.java:69) ~[graylog.jar:?]
	at org.elasticsearch.action.support.HandledTransportAction$TransportHandler.messageReceived(HandledTransportAction.java:59) ~[graylog.jar:?]
	at org.elasticsearch.transport.RequestHandlerRegistry.processMessageReceived(RequestHandlerRegistry.java:77) ~[graylog.jar:?]
	at org.elasticsearch.transport.netty.MessageChannelHandler.handleRequest(MessageChannelHandler.java:227) ~[graylog.jar:?]
	at org.elasticsearch.transport.netty.MessageChannelHandler.messageReceived(MessageChannelHandler.java:116) ~[graylog.jar:?]
	at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70) ~[graylog.jar:?]
	at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) ~[graylog.jar:?]
	at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791) ~[graylog.jar:?]
	at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:296) ~[graylog.jar:?]
	at org.jboss.netty.handler.codec.frame.FrameDecoder.unfoldAndFireMessageReceived(FrameDecoder.java:462) ~[graylog.jar:?]
	at org.jboss.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:443) ~[graylog.jar:?]
	at org.jboss.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303) ~[graylog.jar:?]
	at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70) ~[graylog.jar:?]
	at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) ~[graylog.jar:?]
	at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791) ~[graylog.jar:?]
	at org.elasticsearch.common.netty.OpenChannelsHandler.handleUpstream(OpenChannelsHandler.java:75) ~[graylog.jar:?]
	at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) ~[graylog.jar:?]
	at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559) ~[graylog.jar:?]
	at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268) ~[graylog.jar:?]
	at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255) ~[graylog.jar:?]
	at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88) ~[graylog.jar:?]
	at org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108) ~[graylog.jar:?]
	at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:337) ~[graylog.jar:?]
	at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89) ~[graylog.jar:?]
	at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) ~[graylog.jar:?]
	at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) ~[graylog.jar:?]
	at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) ~[graylog.jar:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_121]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_121]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121]
2017-02-09T15:35:34.859+01:00 ERROR [IndexRotationThread] Couldn't point deflector to a new index
org.elasticsearch.indices.InvalidIndexNameException: Invalid index name [HAM_0], must be lowercase
	at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validateIndexName(MetaDataCreateIndexService.java:151) ~[graylog.jar:?]
	at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validate(MetaDataCreateIndexService.java:431) ~[graylog.jar:?]
	at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.access$100(MetaDataCreateIndexService.java:95) ~[graylog.jar:?]
	at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService$1.execute(MetaDataCreateIndexService.java:190) ~[graylog.jar:?]
	at org.elasticsearch.cluster.ClusterStateUpdateTask.execute(ClusterStateUpdateTask.java:45) ~[graylog.jar:?]
	at org.elasticsearch.cluster.service.InternalClusterService.runTasksForExecutor(InternalClusterService.java:480) ~[graylog.jar:?]
	at org.elasticsearch.cluster.service.InternalClusterService$UpdateTask.run(InternalClusterService.java:784) ~[graylog.jar:?]
	at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.java:231) ~[graylog.jar:?]
	at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:194) ~[graylog.jar:?]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_121]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_121]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121]

Possible Solution

Check the input of the fields, and write it additional to the information text.

Steps to Reproduce (for bugs)

1. Create Index
2. use UPPERCASE (first paragraph) as index_prefix
3. Watch the Graylog Server Logfile

Context

Not every User will spot this issue in the first run and only see that the Journal get filled or no messages are present for search and did not identify the issue.

Your Environment

• Graylog Version: 2.2.rc1