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Justin Ross updated PROTON-905: ------------------------------- Priority: Major (was: Minor) > Long-lived connections leak sessions and links > ---------------------------------------------- > > Key: PROTON-905 > URL: https://issues.apache.org/jira/browse/PROTON-905 > Project: Qpid Proton > Issue Type: Bug > Components: proton-c > Affects Versions: 0.9.1, 0.10 > Reporter: Ken Giusti > Assignee: Alan Conway > Priority: Major > Labels: leak > Fix For: proton-c-future > > Attachments: link-leak.c, test-send.py > > > I found this issue while debugging a crash dump of qpidd. > Long lived connections do not free its sessions/link. > This only applies when NOT using the event model. The version of qpidd I > tested against (0.30) still uses the iterative model. Point to consider, I > don't know why this is the case. > Details: I have a test script that opens a single connection, then > continually creates sessions/links over that connection, sending one message > before closing and freeing the sessions/links. See attached. > Over time the qpidd run time consumes all memory on the system and is killed > by OOM. To be clear, I'm using drain to remove all sent messages - there is > no message build up. > On debugging this, I'm finding thousands of session objects on the > connections free sessions weakref list. Every one of those sessions has a > refcount of one. > Once the connection is finalized, all session objects are freed. But until > then, freed sessions continue to accumulate indefinitely. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@qpid.apache.org For additional commands, e-mail: dev-h...@qpid.apache.org