[BIGTOP-552] Enable HDFS durable sync

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.3.0
• Fix Version/s: 0.4.0
• Component/s: deployment
• Assignee: Patrick Taylor Ramsey
• Reporter: Michael Morello
• Created: 20/Apr/12 06:55
• Updated: 26/Sep/14 09:19
• Resolved: 21/Apr/12 00:28

Description

According to the HBase book () :

HBase will lose data unless it is running on an HDFS that has a durable sync implementation. Hadoop 0.20.2, Hadoop 0.20.203.0, and Hadoop 0.20.204.0 DO NOT have this attribute. Currently only Hadoop versions 0.20.205.x or any release in excess of this version – this includes hadoop 1.0.0 – have a working, durable sync [6]. Sync has to be explicitly enabled by setting dfs.support.append equal to true on both the client side – in hbase-site.xml – and on the serverside in hdfs-site.xml (The sync facility HBase needs is a subset of the append code path).

http://hbase.apache.org/book.html#hadoop