InvalidIndexNameException[Invalid index name [2Shard], must be lowercase]

[2016-10-11 14:16:42,191][DEBUG][action.admin.indices.create] [Feron] [2Shard] f
ailed to create
[2Shard] InvalidIndexNameException[Invalid index name [2Shard], must be lowercase]
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validat
eIndexName(MetaDataCreateIndexService.java:151)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validat
e(MetaDataCreateIndexService.java:431)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.access$
100(MetaDataCreateIndexService.java:95)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService$1.execu
te(MetaDataCreateIndexService.java:190)
        at org.elasticsearch.cluster.ClusterStateUpdateTask.execute(ClusterState
UpdateTask.java:45)
        at org.elasticsearch.cluster.service.InternalClusterService.runTasksForE
xecutor(InternalClusterService.java:468)
        at org.elasticsearch.cluster.service.InternalClusterService$UpdateTask.r
un(InternalClusterService.java:772)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecu
tor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.j
ava:231)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecu
tor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:194)

        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:617)
        at java.lang.Thread.run(Thread.java:745)
[2016-10-11 14:16:44,099][DEBUG][action.admin.indices.create] [Feron] [2Shard] f
ailed to create
[2Shard] InvalidIndexNameException[Invalid index name [2Shard], must be lowercas
e]
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validat
eIndexName(MetaDataCreateIndexService.java:151)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validat
e(MetaDataCreateIndexService.java:431)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.access$
100(MetaDataCreateIndexService.java:95)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService$1.execu
te(MetaDataCreateIndexService.java:190)
        at org.elasticsearch.cluster.ClusterStateUpdateTask.execute(ClusterState
UpdateTask.java:45)
        at org.elasticsearch.cluster.service.InternalClusterService.runTasksForE
xecutor(InternalClusterService.java:468)
        at org.elasticsearch.cluster.service.InternalClusterService$UpdateTask.r
un(InternalClusterService.java:772)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecu
tor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.j
ava:231)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecu
tor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:194)

        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:617)
        at java.lang.Thread.run(Thread.java:745)
[2016-10-11 14:16:45,124][DEBUG][action.admin.indices.create] [Feron] [2Shard] f
ailed to create
[2Shard] InvalidIndexNameException[Invalid index name [2Shard], must be lowercas
e]
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validat
eIndexName(MetaDataCreateIndexService.java:151)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validat
e(MetaDataCreateIndexService.java:431)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.access$
100(MetaDataCreateIndexService.java:95)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService$1.execu
te(MetaDataCreateIndexService.java:190)
        at org.elasticsearch.cluster.ClusterStateUpdateTask.execute(ClusterState
UpdateTask.java:45)
        at org.elasticsearch.cluster.service.InternalClusterService.runTasksForE
xecutor(InternalClusterService.java:468)
        at org.elasticsearch.cluster.service.InternalClusterService$UpdateTask.r
un(InternalClusterService.java:772)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecu
tor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.j
ava:231)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecu
tor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:194)

        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:617)
        at java.lang.Thread.run(Thread.java:745)
[2016-10-11 14:16:45,652][DEBUG][action.admin.indices.create] [Feron] [2Shard] f
ailed to create
[2Shard] InvalidIndexNameException[Invalid index name [2Shard], must be lowercas
e]
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validat
eIndexName(MetaDataCreateIndexService.java:151)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validat
e(MetaDataCreateIndexService.java:431)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.access$
100(MetaDataCreateIndexService.java:95)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService$1.execu
te(MetaDataCreateIndexService.java:190)
        at org.elasticsearch.cluster.ClusterStateUpdateTask.execute(ClusterState
UpdateTask.java:45)
        at org.elasticsearch.cluster.service.InternalClusterService.runTasksForE
xecutor(InternalClusterService.java:468)
        at org.elasticsearch.cluster.service.InternalClusterService$UpdateTask.r
un(InternalClusterService.java:772)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecu
tor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.j
ava:231)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecu
tor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:194)

        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:617)
        at java.lang.Thread.run(Thread.java:745)
[2016-10-11 14:16:52,332][DEBUG][action.admin.indices.create] [Feron] [Shard2] f
ailed to create
[Shard2] InvalidIndexNameException[Invalid index name [Shard2], must be lowercas
e]
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validat
eIndexName(MetaDataCreateIndexService.java:151)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validat
e(MetaDataCreateIndexService.java:431)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.access$
100(MetaDataCreateIndexService.java:95)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService$1.execu
te(MetaDataCreateIndexService.java:190)
        at org.elasticsearch.cluster.ClusterStateUpdateTask.execute(ClusterState
UpdateTask.java:45)
        at org.elasticsearch.cluster.service.InternalClusterService.runTasksForE
xecutor(InternalClusterService.java:468)
        at org.elasticsearch.cluster.service.InternalClusterService$UpdateTask.r
un(InternalClusterService.java:772)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecu
tor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.j
ava:231)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecu
tor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:194)

        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:617)
        at java.lang.Thread.run(Thread.java:745)
[2016-10-11 14:16:53,294][DEBUG][action.admin.indices.create] [Feron] [Shard2] f
ailed to create
[Shard2] InvalidIndexNameException[Invalid index name [Shard2], must be lowercas
e]
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validat
eIndexName(MetaDataCreateIndexService.java:151)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validat
e(MetaDataCreateIndexService.java:431)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.access$
100(MetaDataCreateIndexService.java:95)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService$1.execu
te(MetaDataCreateIndexService.java:190)
        at org.elasticsearch.cluster.ClusterStateUpdateTask.execute(ClusterState
UpdateTask.java:45)
        at org.elasticsearch.cluster.service.InternalClusterService.runTasksForE
xecutor(InternalClusterService.java:468)
        at org.elasticsearch.cluster.service.InternalClusterService$UpdateTask.r
un(InternalClusterService.java:772)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecu
tor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.j
ava:231)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecu
tor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:194)

        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:617)
        at java.lang.Thread.run(Thread.java:745)
[2016-10-11 14:16:53,501][DEBUG][action.admin.indices.create] [Feron] [Shard2] f
ailed to create
[Shard2] InvalidIndexNameException[Invalid index name [Shard2], must be lowercas
e]
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validat
eIndexName(MetaDataCreateIndexService.java:151)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validat
e(MetaDataCreateIndexService.java:431)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.access$
100(MetaDataCreateIndexService.java:95)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService$1.execu
te(MetaDataCreateIndexService.java:190)
        at org.elasticsearch.cluster.ClusterStateUpdateTask.execute(ClusterState
UpdateTask.java:45)
        at org.elasticsearch.cluster.service.InternalClusterService.runTasksForE
xecutor(InternalClusterService.java:468)
        at org.elasticsearch.cluster.service.InternalClusterService$UpdateTask.r
un(InternalClusterService.java:772)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecu
tor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.j
ava:231)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecu
tor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:194)

        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:617)
        at java.lang.Thread.run(Thread.java:745)
[2016-10-11 14:16:57,181][DEBUG][action.admin.indices.create] [Feron] [Shard2] f
ailed to create
[Shard2] InvalidIndexNameException[Invalid index name [Shard2], must be lowercas
e]
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validat
eIndexName(MetaDataCreateIndexService.java:151)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validat
e(MetaDataCreateIndexService.java:431)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.access$
100(MetaDataCreateIndexService.java:95)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService$1.execu
te(MetaDataCreateIndexService.java:190)
        at org.elasticsearch.cluster.ClusterStateUpdateTask.execute(ClusterState
UpdateTask.java:45)
        at org.elasticsearch.cluster.service.InternalClusterService.runTasksForE
xecutor(InternalClusterService.java:468)
        at org.elasticsearch.cluster.service.InternalClusterService$UpdateTask.r
un(InternalClusterService.java:772)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecu
tor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.j
ava:231)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecu
tor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:194)

        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:617)
        at java.lang.Thread.run(Thread.java:745)
[2016-10-11 14:17:00,204][DEBUG][action.admin.indices.create] [Feron] [Shard2] f
ailed to create
[Shard2] InvalidIndexNameException[Invalid index name [Shard2], must be lowercas
e]
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validat
eIndexName(MetaDataCreateIndexService.java:151)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.validat
e(MetaDataCreateIndexService.java:431)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.access$
100(MetaDataCreateIndexService.java:95)
        at org.elasticsearch.cluster.metadata.MetaDataCreateIndexService$1.execu
te(MetaDataCreateIndexService.java:190)
        at org.elasticsearch.cluster.ClusterStateUpdateTask.execute(ClusterState
UpdateTask.java:45)
        at org.elasticsearch.cluster.service.InternalClusterService.runTasksForE
xecutor(InternalClusterService.java:468)
        at org.elasticsearch.cluster.service.InternalClusterService$UpdateTask.r
un(InternalClusterService.java:772)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecu
tor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.j
ava:231)
        at org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecu
tor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:194)

        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.
java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:617)
        at java.lang.Thread.run(Thread.java:745)
[2016-10-11 14:17:24,010][INFO ][cluster.metadata         ] [Feron] [shard2] cre
ating index, cause [api], templates [], shards [2]/[1], mappings []
[2016-10-11 14:17:24,187][INFO ][cluster.routing.allocation] [Feron] Cluster hea
lth status changed from [RED] to [YELLOW] (reason: [shards started [[shard2][0]]
 ...]).