io.druid.segment.loading.SegmentLoadingException: Exception loading segment[watchcloud-mixer-report_2016-12-01T00:00:00.000Z_2017-01-01T00:00:00.000Z_2017-03-18T07:35:40.616Z]
at io.druid.server.coordination.ZkCoordinator.loadSegment(ZkCoordinator.java:310) ~[druid-server-0.9.2.jar:0.9.2]
at io.druid.server.coordination.ZkCoordinator.addSegment(ZkCoordinator.java:351) [druid-server-0.9.2.jar:0.9.2]
at io.druid.server.coordination.SegmentChangeRequestLoad.go(SegmentChangeRequestLoad.java:44) [druid-server-0.9.2.jar:0.9.2]
at io.druid.server.coordination.ZkCoordinator$1.childEvent(ZkCoordinator.java:153) [druid-server-0.9.2.jar:0.9.2]
at org.apache.curator.framework.recipes.cache.PathChildrenCache$5.apply(PathChildrenCache.java:522) [curator-recipes-2.11.0.jar:?]
at org.apache.curator.framework.recipes.cache.PathChildrenCache$5.apply(PathChildrenCache.java:516) [curator-recipes-2.11.0.jar:?]
at org.apache.curator.framework.listen.ListenerContainer$1.run(ListenerContainer.java:93) [curator-framework-2.11.0.jar:?]
at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:297) [guava-16.0.1.jar:?]
at org.apache.curator.framework.listen.ListenerContainer.forEach(ListenerContainer.java:84) [curator-framework-2.11.0.jar:?]
at org.apache.curator.framework.recipes.cache.PathChildrenCache.callListeners(PathChildrenCache.java:513) [curator-recipes-2.11.0.jar:?]
at org.apache.curator.framework.recipes.cache.EventOperation.invoke(EventOperation.java:35) [curator-recipes-2.11.0.jar:?]
at org.apache.curator.framework.recipes.cache.PathChildrenCache$9.run(PathChildrenCache.java:773) [curator-recipes-2.11.0.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_111]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_111]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_111]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_111]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_111]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_111]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_111]
Caused by: java.lang.NullPointerException
at io.druid.common.utils.SerializerUtils.readString(SerializerUtils.java:72) ~[druid-common-0.9.2.jar:0.9.2]
at io.druid.segment.IndexIO$V9IndexLoader.deserializeColumn(IndexIO.java:1043) ~[druid-processing-0.9.2.jar:0.9.2]
at io.druid.segment.IndexIO$V9IndexLoader.load(IndexIO.java:1026) ~[druid-processing-0.9.2.jar:0.9.2]
at io.druid.segment.IndexIO.loadIndex(IndexIO.java:222) ~[druid-processing-0.9.2.jar:0.9.2]
at io.druid.segment.loading.MMappedQueryableIndexFactory.factorize(MMappedQueryableIndexFactory.java:49) ~[druid-server-0.9.2.jar:0.9.2]
at io.druid.segment.loading.SegmentLoaderLocalCacheManager.getSegment(SegmentLoaderLocalCacheManager.java:96) ~[druid-server-0.9.2.jar:0.9.2]
at io.druid.server.coordination.ServerManager.loadSegment(ServerManager.java:152) ~[druid-server-0.9.2.jar:0.9.2]
at io.druid.server.coordination.ZkCoordinator.loadSegment(ZkCoordinator.java:306) ~[druid-server-0.9.2.jar:0.9.2]