[HADOOP-7844] Flush/sync do not work on Hadoop LocalFileSystem

• Type: Bug
• Status: Reopened
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.20.1
• Assignee: Unassigned
• Reporter: Nathan Marz
• Created: 19/Feb/10 04:07
• Updated: 09/Jan/19 21:57

Description

They seem to be no-ops. This is really easy to reproduce, just open a file using FileSystem/getLocal(new Configuration()), write data to the output stream, and then try to flush/sync. I also tried creating the output stream with a buffer size of 1, but that had no effect.

Issue Links

• is duplicated by: HADOOP-7063 ChecksumFileSystem should implement flush()
• is related to: FLUME-1844 HDFSEventSink should have option to use RawLocalFileSystem
• is related to: HBASE-3696 No durability when running with LocalFileSystem
• relates to: HADOOP-8861 FSDataOutputStream.sync should call flush() if the underlying wrapped stream is not Syncable
• relates to: HADOOP-15051 FSDataOutputStream returned by LocalFileSystem#createNonRecursive doesn't have hflush capability