[KAFKA-6162] Stream Store tries to create directory with invalid name on Windows

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 1.0.0
• Component/s: streams
• Environment: Windows
• Assignee: Unassigned
• Reporter: Nitzan Niv
• Created: 02/Nov/17 20:04
• Updated: 14/Nov/17 05:23
• Resolved: 14/Nov/17 05:23

Description

Stream store attempts to create a file with name generated from segment ID:
Segments.java, line 72: name + ":" + segmentId * segmentInterval

":" is invalid in directory name on Windows, so directory creation fails in RocksDB, with following exception:

org.apache.kafka.streams.errors.ProcessorStateException: task [1_0] Failed to flush state store XXX
at org.apache.kafka.streams.processor.internals.ProcessorStateManager.flush(ProcessorStateManager.java:248)
at org.apache.kafka.streams.processor.internals.AbstractTask.flushState(AbstractTask.java:196)
at org.apache.kafka.streams.processor.internals.StreamTask.flushState(StreamTask.java:324)
at org.apache.kafka.streams.processor.internals.StreamTask$1.run(StreamTask.java:304)
at org.apache.kafka.streams.processor.internals.StreamsMetricsImpl.measureLatencyNs(StreamsMetricsImpl.java:208)
at org.apache.kafka.streams.processor.internals.StreamTask.commit(StreamTask.java:299)
at org.apache.kafka.streams.processor.internals.StreamTask.commit(StreamTask.java:289)
at org.apache.kafka.streams.processor.internals.AssignedTasks$2.apply(AssignedTasks.java:87)
at org.apache.kafka.streams.processor.internals.AssignedTasks.applyToRunningTasks(AssignedTasks.java:451)
at org.apache.kafka.streams.processor.internals.AssignedTasks.commit(AssignedTasks.java:380)
at org.apache.kafka.streams.processor.internals.TaskManager.commitAll(TaskManager.java:309)
at org.apache.kafka.streams.processor.internals.StreamThread.maybeCommit(StreamThread.java:1018)
at org.apache.kafka.streams.processor.internals.StreamThread.runOnce(StreamThread.java:835)
at org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:774)
at org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:744)
Caused by: org.apache.kafka.streams.errors.ProcessorStateException: Error opening store XXX:1509624000000 at location C:\Users\User\AppData\Local\Temp\embedded-kafka4250738387316061569\kafka-streams\Host-1509650758702-6227-aggregator\1_0\XXX\XXX:1509624000000
at org.apache.kafka.streams.state.internals.RocksDBStore.openDB(RocksDBStore.java:204)
at org.apache.kafka.streams.state.internals.RocksDBStore.openDB(RocksDBStore.java:174)
at org.apache.kafka.streams.state.internals.Segment.openDB(Segment.java:40)
at org.apache.kafka.streams.state.internals.Segments.getOrCreateSegment(Segments.java:89)
at org.apache.kafka.streams.state.internals.RocksDBSegmentedBytesStore.put(RocksDBSegmentedBytesStore.java:81)
at org.apache.kafka.streams.state.internals.RocksDBWindowStore$RocksDBWindowBytesStore.put(RocksDBWindowStore.java:43)
at org.apache.kafka.streams.state.internals.RocksDBWindowStore$RocksDBWindowBytesStore.put(RocksDBWindowStore.java:34)
at org.apache.kafka.streams.state.internals.ChangeLoggingWindowBytesStore.put(ChangeLoggingWindowBytesStore.java:67)
at org.apache.kafka.streams.state.internals.ChangeLoggingWindowBytesStore.put(ChangeLoggingWindowBytesStore.java:33)
at org.apache.kafka.streams.state.internals.CachingWindowStore$1.apply(CachingWindowStore.java:100)
at org.apache.kafka.streams.state.internals.NamedCache.flush(NamedCache.java:141)
at org.apache.kafka.streams.state.internals.NamedCache.flush(NamedCache.java:99)
at org.apache.kafka.streams.state.internals.ThreadCache.flush(ThreadCache.java:127)
at org.apache.kafka.streams.state.internals.CachingWindowStore.flush(CachingWindowStore.java:132)
at org.apache.kafka.streams.state.internals.MeteredWindowStore.flush(MeteredWindowStore.java:128)
at org.apache.kafka.streams.processor.internals.ProcessorStateManager.flush(ProcessorStateManager.java:245)
... 14 common frames omitted
Caused by: org.rocksdb.RocksDBException: Failed to create dir: C:\Users\User\AppData\Local\Temp\embedded-kafka4250738387316061569\kafka-streams\Host-1509650758702-6227-aggregator\1_0\XXX\XXX:1509624000000: Invalid argument
at org.rocksdb.RocksDB.open(Native Method)
at org.rocksdb.RocksDB.open(RocksDB.java:231)
at org.apache.kafka.streams.state.internals.RocksDBStore.openDB(RocksDBStore.java:197)
... 29 common frames omitted

Issue Links

• is duplicated by: KAFKA-6167 Timestamp on streams directory contains a colon, which is an illegal character