[ https://issues.apache.org/jira/browse/CASSANDRA-13862?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jaydeepkumar Chovatia updated CASSANDRA-13862: ---------------------------------------------- Description: Currently Paxos prepare and propose messages always go through entire MessagingService stack in Cassandra even if request is to be served locally, we can enhance and make local requests severed w/o involving MessagingService. Similar things are done at may [other places | https://github.com/apache/cassandra/blob/cassandra-3.0/src/java/org/apache/cassandra/service/StorageProxy.java#L1244] in Cassandra which skips MessagingService stage for local requests. This is what it looks like currently if we have tracing on and run Cassandra light weight transaction. {noformat} Sending PAXOS_PREPARE message to /A.B.C.D [MessagingService-Outgoing-/A.B.C.D] | 2017-09-11 21:55:18.971000 | A.B.C.D | 15045 … REQUEST_RESPONSE message received from /A.B.C.D [MessagingService-Incoming-/A.B.C.D] | 2017-09-11 21:55:18.976000 | A.B.C.D | 20270 … Processing response from /A.B.C.D [SharedPool-Worker-4] | 2017-09-11 21:55:18.976000 | A.B.C.D | 20372 {noformat} Same thing applies for Propose stage as well. was: Currently Paxos prepare and propose messages always go through entire MessagingService stack in Cassandra even if request is to be served locally, we can enhance and make local requests severed w/o involving MessagingService. Similar things are done at may [other places | https://github.com/apache/cassandra/blob/cassandra-3.0/src/java/org/apache/cassandra/service/StorageProxy.java#L1244] in Cassandra which skips MessagingService stage for local requests. This is what it looks like currently if we have tracing on and run Cassandra light weight transaction. {noformat} {{Sending PAXOS_PREPARE message to /A.B.C.D [MessagingService-Outgoing-/A.B.C.D] | 2017-09-11 21:55:18.971000 | A.B.C.D | 15045 … REQUEST_RESPONSE message received from /A.B.C.D [MessagingService-Incoming-/A.B.C.D] | 2017-09-11 21:55:18.976000 | A.B.C.D | 20270 … Processing response from /A.B.C.D [SharedPool-Worker-4] | 2017-09-11 21:55:18.976000 | A.B.C.D | 20372}} {noformat} Same thing applies for Propose stage as well. > Optimize Paxos prepare and propose stage for local requests > ------------------------------------------------------------ > > Key: CASSANDRA-13862 > URL: https://issues.apache.org/jira/browse/CASSANDRA-13862 > Project: Cassandra > Issue Type: Improvement > Components: Streaming and Messaging > Reporter: Jaydeepkumar Chovatia > Priority: Minor > Fix For: 3.0.15 > > > Currently Paxos prepare and propose messages always go through entire > MessagingService stack in Cassandra even if request is to be served locally, > we can enhance and make local requests severed w/o involving > MessagingService. Similar things are done at may [other places | > https://github.com/apache/cassandra/blob/cassandra-3.0/src/java/org/apache/cassandra/service/StorageProxy.java#L1244] > in Cassandra which skips MessagingService stage for local requests. > This is what it looks like currently if we have tracing on and run Cassandra > light weight transaction. > {noformat} > Sending PAXOS_PREPARE message to /A.B.C.D > [MessagingService-Outgoing-/A.B.C.D] | 2017-09-11 21:55:18.971000 | A.B.C.D > | 15045 > … > > REQUEST_RESPONSE message received from /A.B.C.D > [MessagingService-Incoming-/A.B.C.D] | 2017-09-11 21:55:18.976000 | A.B.C.D > | 20270 > … > > Processing response from /A.B.C.D [SharedPool-Worker-4] > | 2017-09-11 21:55:18.976000 | A.B.C.D | 20372 > {noformat} > Same thing applies for Propose stage as well. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org