[QFJ-555] Problems with heartbeating in one session can obstruct heartbeating on other sessions Created: 01/Sep/10  Updated: 07/Jan/20

Status: Open
Project: QuickFIX/J
Component/s: Engine
Affects Version/s: 1.4.0
Fix Version/s: None

Type: Bug Priority: Default
Reporter: Rhys Yarranton Assignee: Unassigned
Resolution: Unresolved Votes: 0
Labels: None

Issue Links:
Relates
relates to QFJ-291 Problems with initiator reconnect wil... Closed

 Description   

SessionConnector.scheduledExecutorService is a single-threaded executor, and is used by all sessions for heartbeating. If there is a problem in one session, it can impact other sessions.

This is really QFJ-291 again. QFJ-291 was stated in terms of initiator reconnects, and the fix to it targeted that specific scenario. However, we have just encountered this problem in production involving only heartbeats. Heartbeating seems innocuous, but in fact has most of the same vulnerabilities as sending any other message (logging, toAdmin etc.).

 Comments   
Comment by Christoph John [ 07/Jan/20 ]

This will be improved with https://github.com/quickfix-j/quickfixj/issues/254.

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