java.lang.IllegalStateException: Failed to create merged beam: druid:overlord/metricDSat com.metamx.tranquility.beam.ClusteredBeam$$anonfun$sendAll$2$$anonfun$26.apply(ClusteredBeam.scala:383) ~[tranquility-core_2.11-0.8.1.jar:0.8.1]at com.metamx.tranquility.beam.ClusteredBeam$$anonfun$sendAll$2$$anonfun$26.apply(ClusteredBeam.scala:379) ~[tranquility-core_2.11-0.8.1.jar:0.8.1]at com.twitter.util.Promise$Transformer.liftedTree1$1(Promise.scala:112) ~[util-core_2.11-6.30.0.jar:6.30.0]at com.twitter.util.Promise$Transformer.k(Promise.scala:112) ~[util-core_2.11-6.30.0.jar:6.30.0]at com.twitter.util.Promise$Transformer.apply(Promise.scala:122) ~[util-core_2.11-6.30.0.jar:6.30.0]at com.twitter.util.Promise$Transformer.apply(Promise.scala:103) ~[util-core_2.11-6.30.0.jar:6.30.0]at com.twitter.util.Promise$$anon$1.run(Promise.scala:366) ~[util-core_2.11-6.30.0.jar:6.30.0]at com.twitter.concurrent.LocalScheduler$Activation.run(Scheduler.scala:178) [util-core_2.11-6.30.0.jar:6.30.0]at com.twitter.concurrent.LocalScheduler$Activation.submit(Scheduler.scala:136) [util-core_2.11-6.30.0.jar:6.30.0]at com.twitter.concurrent.LocalScheduler.submit(Scheduler.scala:207) [util-core_2.11-6.30.0.jar:6.30.0]at com.twitter.concurrent.Scheduler$.submit(Scheduler.scala:92) [util-core_2.11-6.30.0.jar:6.30.0]at com.twitter.util.Promise.runq(Promise.scala:350) [util-core_2.11-6.30.0.jar:6.30.0]at com.twitter.util.Promise.updateIfEmpty(Promise.scala:721) [util-core_2.11-6.30.0.jar:6.30.0]at com.twitter.util.ExecutorServiceFuturePool$$anon$2.run(FuturePool.scala:107) [util-core_2.11-6.30.0.jar:6.30.0]at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_25]at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_25]at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_25]at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_25]at java.lang.Thread.run(Thread.java:745) [na:1.8.0_25]Caused by: java.lang.IllegalStateException: Failed to save new beam for identifier[druid:overlord/metricDS] timestamp[2016-08-16T05:00:00.000Z]at com.metamx.tranquility.beam.ClusteredBeam$$anonfun$2.applyOrElse(ClusteredBeam.scala:289) ~[tranquility-core_2.11-0.8.1.jar:0.8.1]at com.metamx.tranquility.beam.ClusteredBeam$$anonfun$2.applyOrElse(ClusteredBeam.scala:286) ~[tranquility-core_2.11-0.8.1.jar:0.8.1]at com.twitter.util.Future$$anonfun$rescue$1.apply(Future.scala:924) ~[util-core_2.11-6.30.0.jar:6.30.0]at com.twitter.util.Future$$anonfun$rescue$1.apply(Future.scala:922) ~[util-core_2.11-6.30.0.jar:6.30.0]... 17 common frames omittedCaused by: com.fasterxml.jackson.databind.JsonMappingException: 128 (through reference chain: com.fasterxml.jackson.module.scala.deser.MapBuilderWrapper["beams"])at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:210) ~[jackson-databind-2.6.1.jar:2.6.1]at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:177) ~[jackson-databind-2.6.1.jar:2.6.1]at com.fasterxml.jackson.databind.deser.std.ContainerDeserializerBase.wrapAndThrow(ContainerDeserializerBase.java:88) ~[jackson-databind-2.6.1.jar:2.6.1]at com.fasterxml.jackson.databind.deser.std.MapDeserializer._readAndBindStringMap(MapDeserializer.java:507) ~[jackson-databind-2.6.1.jar:2.6.1]at com.fasterxml.jackson.databind.deser.std.MapDeserializer.deserialize(MapDeserializer.java:341) ~[jackson-databind-2.6.1.jar:2.6.1]at com.fasterxml.jackson.module.scala.deser.UnsortedMapDeserializer.deserialize(UnsortedMapDeserializerModule.scala:76) ~[jackson-module-scala_2.11-2.6.0.jar:na]at com.fasterxml.jackson.module.scala.deser.UnsortedMapDeserializer.deserialize(UnsortedMapDeserializerModule.scala:39) ~[jackson-module-scala_2.11-2.6.0.jar:na]at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3702) ~[jackson-databind-2.6.1.jar:2.6.1]at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2807) ~[jackson-databind-2.6.1.jar:2.6.1]at com.metamx.tranquility.beam.ClusteredBeamMeta$.fromBytes(ClusteredBeam.scala:497) ~[tranquility-core_2.11-0.8.1.jar:0.8.1]at com.metamx.tranquility.beam.ClusteredBeam$$anon$1$$anonfun$modify$1.apply(ClusteredBeam.scala:156) ~[tranquility-core_2.11-0.8.1.jar:0.8.1]at com.metamx.tranquility.beam.ClusteredBeam$$anon$1$$anonfun$modify$1.apply(ClusteredBeam.scala:152) ~[tranquility-core_2.11-0.8.1.jar:0.8.1]at com.twitter.util.Try$.apply(Try.scala:13) ~[util-core_2.11-6.30.0.jar:6.30.0]... 6 common frames omittedCaused by: java.lang.ArrayIndexOutOfBoundsException: 128at com.fasterxml.jackson.core.sym.ByteQuadsCanonicalizer.addName(ByteQuadsCanonicalizer.java:853) ~[jackson-core-2.6.1.jar:2.6.1]at com.fasterxml.jackson.core.json.UTF8StreamJsonParser.addName(UTF8StreamJsonParser.java:2340) ~[jackson-core-2.6.1.jar:2.6.1]at com.fasterxml.jackson.core.json.UTF8StreamJsonParser.findName(UTF8StreamJsonParser.java:2224) ~[jackson-core-2.6.1.jar:2.6.1]at com.fasterxml.jackson.core.json.UTF8StreamJsonParser.parseLongName(UTF8StreamJsonParser.java:1831) ~[jackson-core-2.6.1.jar:2.6.1]at com.fasterxml.jackson.core.json.UTF8StreamJsonParser.parseMediumName2(UTF8StreamJsonParser.java:1786) ~[jackson-core-2.6.1.jar:2.6.1]at com.fasterxml.jackson.core.json.UTF8StreamJsonParser.parseMediumName(UTF8StreamJsonParser.java:1743) ~[jackson-core-2.6.1.jar:2.6.1]at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._parseName(UTF8StreamJsonParser.java:1678) ~[jackson-core-2.6.1.jar:2.6.1]at com.fasterxml.jackson.core.json.UTF8StreamJsonParser.nextFieldName(UTF8StreamJsonParser.java:1007) ~[jackson-core-2.6.1.jar:2.6.1]at com.fasterxml.jackson.databind.deser.std.MapDeserializer._readAndBindStringMap(MapDeserializer.java:483) ~[jackson-databind-2.6.1.jar:2.6.1]at com.fasterxml.jackson.databind.deser.std.MapDeserializer.deserialize(MapDeserializer.java:341) ~[jackson-databind-2.6.1.jar:2.6.1]at com.fasterxml.jackson.module.scala.deser.UnsortedMapDeserializer.deserialize(UnsortedMapDeserializerModule.scala:76) ~[jackson-module-scala_2.11-2.6.0.jar:na]at com.fasterxml.jackson.module.scala.deser.UnsortedMapDeserializer.deserialize(UnsortedMapDeserializerModule.scala:39) ~[jackson-module-scala_2.11-2.6.0.jar:na]at com.fasterxml.jackson.module.scala.deser.UntypedObjectDeserializer.mapObject(UntypedObjectDeserializerModule.scala:44) ~[jackson-module-scala_2.11-2.6.0.jar:na]at com.fasterxml.jackson.databind.deser.std.UntypedObjectDeserializer.deserialize(UntypedObjectDeserializer.java:222) ~[jackson-databind-2.6.1.jar:2.6.1]at com.fasterxml.jackson.databind.deser.std.MapDeserializer._readAndBindStringMap(MapDeserializer.java:495) ~[jackson-databind-2.6.1.jar:2.6.1]