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Wei-Chiu Chuang commented on HDFS-14703: ---------------------------------------- Added a version "Fine-Grained Locking". Please use it for target and fix versions for anything that lands in the fgl branch. [~shv], i noticed the file LatchLock.java was added by the commit "INodeMap with PartitionedGSet and per-partition locking." https://github.com/apache/hadoop/commit/1f1a0c45fe44c3da0db96999978417c4ff397a93 The commit message does not have a jira id and I couldn't find a jira with the same summary. A little hard to keep track of the current progress. > NameNode Fine-Grained Locking via Metadata Partitioning > ------------------------------------------------------- > > Key: HDFS-14703 > URL: https://issues.apache.org/jira/browse/HDFS-14703 > Project: Hadoop HDFS > Issue Type: Improvement > Components: hdfs, namenode > Reporter: Konstantin Shvachko > Priority: Major > Attachments: 001-partitioned-inodeMap-POC.tar.gz, > 002-partitioned-inodeMap-POC.tar.gz, 003-partitioned-inodeMap-POC.tar.gz, > NameNode Fine-Grained Locking.pdf, NameNode Fine-Grained Locking.pdf > > > We target to enable fine-grained locking by splitting the in-memory namespace > into multiple partitions each having a separate lock. Intended to improve > performance of NameNode write operations. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org