[ https://issues.apache.org/jira/browse/HDFS-13150?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Erik Krogen resolved HDFS-13150. -------------------------------- Resolution: Fixed Fix Version/s: HDFS-12943 Closing this as all sub-issues (HDFS-13607, HDFS-13608, HDFS-13609, HDFS-13610) have been completed. Thanks to all who helped with this new feature! > [Edit Tail Fast Path] Allow SbNN to tail in-progress edits from JN via RPC > -------------------------------------------------------------------------- > > Key: HDFS-13150 > URL: https://issues.apache.org/jira/browse/HDFS-13150 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: ha, hdfs, journal-node, namenode > Reporter: Erik Krogen > Assignee: Erik Krogen > Priority: Major > Fix For: HDFS-12943 > > Attachments: edit-tailing-fast-path-design-v0.pdf, > edit-tailing-fast-path-design-v1.pdf, edit-tailing-fast-path-design-v2.pdf > > > In the interest of making coordinated/consistent reads easier to complete > with low latency, it is advantageous to reduce the time between when a > transaction is applied on the ANN and when it is applied on the SbNN. We > propose adding a new "fast path" which can be used to tail edits when low > latency is desired. We leave the existing tailing logic in place, and fall > back to this path on startup, recovery, and when the fast path encounters > unrecoverable errors. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org