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JiangHua Zhu commented on HDFS-14703: ------------------------------------- I noticed that the file PartitionedGSet.java has some modifications, which were added by submitting "Add namespace key for INode. (shv)". https://github.com/apache/hadoop/commit/455e8c019184d5d3ae7bcff4d29d9baa7aff3663 The submission message does not have a jira id, and I cannot find a jira with the same abstract. It's a bit difficult to track current progress. I am here only as a reminder, if what I say here is wrong, I will correct it. > 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