Bug 672593

Summary: Publishing Agent to the broker is not reliable
Product: Red Hat Enterprise MRG Reporter: Petr Matousek <pematous>
Component: qpid-qmfAssignee: messaging-bugs <messaging-bugs>
Status: NEW --- QA Contact: MRG Quality Engineering <mrgqe-bugs>
Severity: unspecified Docs Contact:
Priority: medium    
Version: 1.3CC: iboverma, jross
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Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
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Fixed In Version: Doc Type: Bug Fix
Doc Text:
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Petr Matousek 2011-01-25 17:05:45 UTC 
Description of problem:

When I was verifying bz640312, I noticed that publishing Agent to the broker is not proper. 
When the agent is running and the schema is displayed using qpid-tool, sometimes the agent (org.apache.qpid.agent.nozzle in this case) is not listed.
I also noticed a case that the agent is listed using qpid-tool, but the agent disappears after invoking some console action. 

Issue reproducer from bz640312 can be used for reproducing the issue.

This issue can't be reproduced 100%. In many cases the interaction between agent, broker and console seems to be correct.

This was seen on RHEL5.6 x86_64, i686 and RHEL4.8 x86_64

Version-Release number of selected component (if applicable):
python-qpid-0.7.946106-15.el5
qpid-cpp-client-0.7.946106-27.el5
qpid-cpp-client-devel-0.7.946106-27.el5
qpid-cpp-client-devel-docs-0.7.946106-27.el5
qpid-cpp-client-ssl-0.7.946106-27.el5
qpid-cpp-server-0.7.946106-27.el5
qpid-cpp-server-cluster-0.7.946106-27.el5
qpid-cpp-server-devel-0.7.946106-27.el5
qpid-cpp-server-ssl-0.7.946106-27.el5
qpid-cpp-server-store-0.7.946106-27.el5
qpid-cpp-server-xml-0.7.946106-27.el5
qpid-java-client-0.7.946106-14.el5
qpid-java-common-0.7.946106-14.el5
qpid-java-example-0.7.946106-14.el5
qpid-tools-0.7.946106-12.el5
python-qmf-0.7.946106-14.el5
qmf-0.7.946106-27.el5
qmf-devel-0.7.946106-27.el5
ruby-qmf-0.7.946106-27.el

How reproducible:
50%

Steps to Reproduce:
1. Run the nozzle agent using following command:
# ./run_nozzle -b localhost:5672 -n 1 -t 10 -q
2. run the console ie:
# ./big-echo.py localhost 20
3. IndexError is displayed

see Additional info
  
Actual results:
Publishing Agent to the broker is not reliable

Expected results:
Agent is correctly published to the broker

Additional info:
# date; ./run_nozzle -b localhost:5672 -n 1 -t 10 -q
Tue Jan 25 16:55:00 CET 2011
b=localhost p=5672 n=1 s=1 e=0 t=10

# date; ./big-echo.py localhost 20
Tue Jan 25 16:55:28 CET 2011
Traceback (most recent call last):
  File "./big-echo.py", line 13, in ?
    d = a.getObjects(_class="data")[0]
IndexError: list index out of range

# qpid-tool 
Management Tool for QPID
qpid: schema
QMF Classes:
    Package                 Name                  Kind
    ======================================================
    com.redhat.rhm.store    journal               object
    com.redhat.rhm.store    store                 object
    org.apache.qpid.broker  vhost                 object
    org.apache.qpid.broker  bridge                object
    org.apache.qpid.broker  binding               object
    org.apache.qpid.broker  connection            object
    org.apache.qpid.broker  subscription          object
    org.apache.qpid.broker  broker                object
    org.apache.qpid.broker  system                object
    org.apache.qpid.broker  queue                 object
    org.apache.qpid.broker  link                  object
    org.apache.qpid.broker  exchange              object
    org.apache.qpid.broker  session               object
    org.apache.qpid.broker  managementsetupstate  object
    org.apache.qpid.broker  agent                 object
    com.redhat.grid.config  Group                 object
    com.redhat.grid.config  Snapshot              object
    com.redhat.grid.config  Configuration         object
    com.redhat.grid.config  Store                 object
    com.redhat.grid.config  Subsystem             object
    com.redhat.grid.config  Node                  object
    com.redhat.grid.config  Feature               object
    com.redhat.grid.config  Parameter             object

(org.apache.qpid.agent.nozzle is not present in the list)