[ https://issues.apache.org/jira/browse/HDFS-12978?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Erik Krogen reassigned HDFS-12978: ---------------------------------- Assignee: Erik Krogen > Fine-grained locking while consuming journal stream. > ---------------------------------------------------- > > Key: HDFS-12978 > URL: https://issues.apache.org/jira/browse/HDFS-12978 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: namenode > Reporter: Konstantin Shvachko > Assignee: Erik Krogen > > In current implementation SBN consumes the entire segment of transactions > under a single namesystem lock, which does not allow reads over a long period > of time until the segment is processed. We should break the lock into fine > grained chunks. In extreme case each transaction should release the lock once > it is applied. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org