[HDFS-4191] Track new transactions per thread so that unnecessary logSync() calls can be avoided

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 3.0.0-alpha1
• Component/s: namenode
• Labels: BB2015-05-TBR
• Assignee: Kihwal Lee
• Reporter: Kihwal Lee
• Created: 14/Nov/12 23:46
• Updated: 12/May/16 18:12
• Resolved: 08/May/15 13:36

Description

With this fix, logSync() can be called anytime by a thread without affecting the batched syncs metrics. As discussed in HDFS-4186, we will put this feature only to trunk first and let it soak for some time.