Ilya Pronin created MESOS-7973: ---------------------------------- Summary: Non-leading VOTING replica catch-up Key: MESOS-7973 URL: https://issues.apache.org/jira/browse/MESOS-7973 Project: Mesos Issue Type: Improvement Components: replicated log Reporter: Ilya Pronin Assignee: Ilya Pronin
Currently it is not possible to perform consistent reads from non-leading replicas due to the fact that if a non-leading replica is partitioned it may miss some log positions and will not make any attempt to “fill” those holes. If a non-leading replica could catch-up missing log positions it would be able to serve eventually consistent reads to the framework. This would make it possible to do additional work on non-leading framework replicas (e.g. offload some reading from a leader to standbys or reduce failover time by keeping in-memory storage represented by the log “hot”). Design doc: https://docs.google.com/document/d/1dERXJeAsi3Lnq9Akt82JGWK4pKNeJ6k7PTVCpM9ic_8/edit?usp=sharing -- This message was sent by Atlassian JIRA (v6.4.14#64029)