Transient failure on io.druid.indexing.overlord.TaskLifecycleTest testRealtimeIndexTaskFailure

[fjy]

Build: https://travis-ci.org/druid-io/druid/jobs/98347527

io.druid.indexing.overlord.TaskLifecycleTest
testRealtimeIndexTaskFailure[taskStorageType=MetadataTaskStorage](io.druid.indexing.overlord.TaskLifecycleTest)  Time elapsed: 4.878 sec  <<< ERROR!
java.lang.Exception: test timed out after 4000 milliseconds
    at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._parseNegNumber(UTF8StreamJsonParser.java:1259)
    at com.fasterxml.jackson.core.json.UTF8StreamJsonParser.nextToken(UTF8StreamJsonParser.java:709)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeUsingPropertyBased(BeanDeserializer.java:337)
    at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1064)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:264)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:124)
    at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:3066)
    at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:2247)
    at io.druid.metadata.SQLMetadataStorageActionHandler$4.withHandle(SQLMetadataStorageActionHandler.java:195)
    at io.druid.metadata.SQLMetadataStorageActionHandler$4.withHandle(SQLMetadataStorageActionHandler.java:184)
    at org.skife.jdbi.v2.DBI.withHandle(DBI.java:281)
    at io.druid.metadata.SQLMetadataConnector$2.call(SQLMetadataConnector.java:110)
    at com.metamx.common.RetryUtils.retry(RetryUtils.java:38)
    at io.druid.metadata.SQLMetadataConnector.retryWithHandle(SQLMetadataConnector.java:115)
    at io.druid.metadata.SQLMetadataStorageActionHandler.getStatus(SQLMetadataStorageActionHandler.java:182)
    at io.druid.indexing.overlord.MetadataTaskStorage.getStatus(MetadataTaskStorage.java:178)
    at io.druid.indexing.overlord.TaskStorageQueryAdapter.getStatus(TaskStorageQueryAdapter.java:64)
    at io.druid.indexing.overlord.TaskLifecycleTest.testRealtimeIndexTaskFailure(TaskLifecycleTest.java:940)