Erik Krogen created HDFS-13150: ---------------------------------- Summary: Create fast path for SbNN tailing edits from JNs Key: HDFS-13150 URL: https://issues.apache.org/jira/browse/HDFS-13150 Project: Hadoop HDFS Issue Type: Sub-task Components: hdfs, journal-node, namenode Reporter: Erik Krogen Assignee: Erik Krogen
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