qpid-stat doesn't show all queues

Solution In Progress - Updated -

Environment

  • Red Hat Enterprise MRG Messaging (any version)
    • qpid-tools (any version)

Issue

  • running qpid-stat with option -S to sort rows per some column
  • the output does not show all expected queues/exchanges/connections/subscriptions
  • when using a different tool or qpid-stat without -S, all objects are showed as expected

Resolution

Add option -L <N> to limit the sorted output to N lines. The default value of this parameter is 50.

Root Cause

When -S parameter in qpid-stat is used (to sort output per given column), the sort / the output is limited to the first 50 records only. This number is configurable via -L parameter.

When -S parameter is not used, all records (queues/exchanges/..) are printed every time.

Diagnostic Steps

While qpid-stat without -S option reports e.g. 69 queues (plus 3 lines in the output for headers), qpid-stat -S reports just 50 queues. Increasing the sort limit by adding -L 100 again reports all queues:

$ qpid-stat -q | wc
     72     647    9168
$ qpid-stat -q -S msg | wc
     53     472    6249
$ qpid-stat -q -S msg -L 100 | wc
     72     647    9168
$

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