[ https://issues.apache.org/jira/browse/ZOOKEEPER-901?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12921997#action_12921997 ]
Flavio Junqueira commented on ZOOKEEPER-901: -------------------------------------------- It is a good point, Pat. It crossed my mind, but I thought it would be overkill to use netty. However, if it is simpler to have it for compatibility and uniformity purposes, then we should consider it. > Redesign of QuorumCnxManager > ---------------------------- > > Key: ZOOKEEPER-901 > URL: https://issues.apache.org/jira/browse/ZOOKEEPER-901 > Project: Zookeeper > Issue Type: Improvement > Components: leaderElection > Affects Versions: 3.3.1 > Reporter: Flavio Junqueira > Assignee: Flavio Junqueira > Fix For: 3.4.0 > > > QuorumCnxManager manages TCP connections between ZooKeeper servers for leader > election in replicated mode. We have identified over time a couple of > deficiencies that we would like to fix. Unfortunately, fixing these issues > requires a little more than just generating a couple of small patches. More > specifically, I propose, based on previous discussions with the community, > that we reimplement QuorumCnxManager so that we achieve the following: > # Establishing connections should not be a blocking operation, and perhaps > even more important, it shouldn't prevent the establishment of connections > with other servers; > # Using a pair of threads per connection is a little messy, and we have seen > issues over time due to the creation and destruction of such threads. A more > reasonable approach is to have a single thread and a selector. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.