[HBASE-9266] Javadoc: Document that HBaseAdmin.flush(...) is synchronous

• Type: Bug
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 0.94.12
• Hadoop Flags: Reviewed
• Assignee: Lars Hofhansl
• Reporter: Lars Hofhansl
• Created: 19/Aug/13 22:19
• Updated: 24/Sep/13 21:32
• Resolved: 20/Aug/13 01:04

Description

Currently the Javadoc in HBaseAdmin.flush(...) says that this is an asynchronous operation. Looking at the, however, it is in fact not.

Having this as a synchronous operation open ups some use cases we're interested in. For example doing some ingest via the high level API with WAL disabled and then issue a flush through the HBaseAdmin. When the flush succeeded we know the data is securely in HBase.
(This should work even with intermediary splits, as they also force a flush, but that needs to be verified as well.

So this is just for a trivial Javadoc change.