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Posted to dev@qpid.apache.org by "Ken Giusti (Jira)" <ji...@apache.org> on 2020/10/08 15:10:00 UTC

[jira] [Created] (DISPATCH-1795) Avoid clutter in debug output by not printing traceback of suppressed leaks

Ken Giusti created DISPATCH-1795:
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             Summary: Avoid clutter in debug output by not printing traceback of suppressed leaks
                 Key: DISPATCH-1795
                 URL: https://issues.apache.org/jira/browse/DISPATCH-1795
             Project: Qpid Dispatch
          Issue Type: Improvement
          Components: Routing Engine
    Affects Versions: 1.14.0
            Reporter: Ken Giusti
             Fix For: Backlog


When a router that has been built for Debug exits the pool allocator will dump stack tracebacks for all leaked pool objects.

This results in a lot of extra information appearing in the output.

To lessen the noise somewhat I propose avoiding printing the traceback for those alloc pooled items that are suppressed.  Keep printing the leak of the suppressed item, just avoid the extra stack dump.   For example:

 
{quote}alloc.c: Items of type 'qd_buffer_t' remain allocated at shutdown: 16 
Leak: 2020-10-08 10:33:29.819821 -0400 type: qd_buffer_t address: 0x239ea10 (suppressed) 
/home/kgiusti/work/dispatch/qpid-dispatch/BUILD/src/libqpid-dispatch.so(qd_alloc+0x20c) [0x7f2b9e0742b6] 
/home/kgiusti/work/dispatch/qpid-dispatch/BUILD/src/libqpid-dispatch.so(new_qd_buffer_t+0x26) [0x7f2b9e075fb2] 
/home/kgiusti/work/dispatch/qpid-dispatch/BUILD/src/libqpid-dispatch.so(qd_buffer+0x17) [0x7f2b9e0760d0] 
/home/kgiusti/work/dispatch/qpid-dispatch/BUILD/src/libqpid-dispatch.so(qda_raw_conn_grant_read_buffers+0x67) [0x7f2b9e056e83] 
/home/kgiusti/work/dispatch/qpid-dispatch/BUILD/src/libqpid-dispatch.so(qdr_http1_server_core_link_flow+0x12a) [0x7f2b9e06df02] 
/home/kgiusti/work/dispatch/qpid-dispatch/BUILD/src/libqpid-dispatch.so(+0x461d6) [0x7f2b9e0661d6] 
/home/kgiusti/work/dispatch/qpid-dispatch/BUILD/src/libqpid-dispatch.so(qdr_connection_process+0x817) [0x7f2b9e0ab853] 
/home/kgiusti/work/dispatch/qpid-dispatch/BUILD/src/libqpid-dispatch.so(+0x4c337) [0x7f2b9e06c337] 
/home/kgiusti/work/dispatch/qpid-dispatch/BUILD/src/libqpid-dispatch.so(+0xc649e) [0x7f2b9e0e649e] 
/home/kgiusti/work/dispatch/qpid-dispatch/BUILD/src/libqpid-dispatch.so(+0xc64db) [0x7f2b9e0e64db]
{quote}
 

Would now just print:
{quote}alloc.c: Items of type 'qd_buffer_t' remain allocated at shutdown: 16 
Leak: 2020-10-08 10:33:29.819821 -0400 type: qd_buffer_t address: 0x239ea10 (suppressed)
{quote}
 

Non-suppressed items would include the backtrace of course.



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