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Stu Hood edited comment on CASSANDRA-2858 at 7/28/11 6:32 PM: -------------------------------------------------------------- There are a few issues here: * The originally mentioned issue of not having an accurate timeout on the server side ** Add a creation time on the client side? Set the remaining time immediately before serialization? * The ExpiringMap of callbacks on the client side always waits until the RPC timeout to expire messages ** The Callback could eagerly expire itself from the map when it is is satisfied * A client thread calling get() on a callback has a timeout independent from the timeout for the Callback in the ExpiringMap: they can become disconnected ** One way to solve that would be to change the IAsyncCallback interface to be more like a Future, such that it is notified when it expires, and could kill anyone blocking on get() with a TimeoutException was (Author: stuhood): There are a few issues here: * The originally mentioned issue of not having an accurate timeout on the server side * Add a creation time on the client side? Set the remaining time immediately before serialization? * The ExpiringMap of callbacks on the client side always waits until the RPC timeout to expire messages * The Callback could eagerly expire itself from the map when it is is satisfied * A client thread calling get() on a callback has a timeout independent from the timeout for the Callback in the ExpiringMap: they can become disconnected * One way to solve that would be to change the IAsyncCallback interface to be more like a Future, such that it is notified when it expires, and could kill anyone blocking on get() with a TimeoutException > make request dropping more accurate > ----------------------------------- > > Key: CASSANDRA-2858 > URL: https://issues.apache.org/jira/browse/CASSANDRA-2858 > Project: Cassandra > Issue Type: Improvement > Reporter: Ryan King > Assignee: Melvin Wang > Priority: Minor > > Based on the discussion in > https://issues.apache.org/jira/browse/CASSANDRA-2819, we can make the > bookkeeping for request times more accurate. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira