[jira] [Commented] (DISPATCH-1254) qdstat sometimes raises "TypeError: 'NoneType' object is not iterable"

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DISPATCH-1254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16750290#comment-16750290 ] 

ASF GitHub Bot commented on DISPATCH-1254:
------------------------------------------

ganeshmurthy commented on pull request #444: DISPATCH-1254 - Fix a corner cases, usually when a router is just sta…
URL: https://github.com/apache/qpid-dispatch/pull/444
 
 
   …rting up, where the validOrigins list can come across as None
 
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


> qdstat sometimes raises "TypeError: 'NoneType' object is not iterable"
> ----------------------------------------------------------------------
>
>                 Key: DISPATCH-1254
>                 URL: https://issues.apache.org/jira/browse/DISPATCH-1254
>             Project: Qpid Dispatch
>          Issue Type: Bug
>          Components: Routing Engine
>    Affects Versions: 1.2.0
>            Reporter: Alan Conway
>            Assignee: Ganesh Murthy
>            Priority: Major
>         Attachments: qdr-chain.sh
>
>
> Calling qdstat -nv repeatedly to check the status of a router network sometimes raises a "nonetype not iterable error.
> Reproducer: 
> make install this version of quiver (extented to allow separate send/receive URLS). If you have maven installed you should edit the makefile to disable the Java arrow as the build is very slow and fragile:
>     [https://github.com/alanconway/quiver]
> run the attached script like this:
>     qdr-chain.sh quiver --arrow c  --count 1000 --send-url //:10001/x //:10001/x     
> The script generates config files, starts four routers, waits for qdstat -nv to show the full topology and then runs quiver as directed. Edit the script to change logging or other config settings. Log and config files are created in the current directory.
> WARNING the script will kill any running qdrouterd.
> While waiting for the router network to stabilize I see output like the following. The initial connection error is expected as the router has not yet started, but the TypeError in the middle is unexpected.
>  
> {{ConnectionException: Connection amqp://localhost:10001/$management disconnected: Condition('proton:io', 'recv: errno: 111') }}
> {{waiting... }}
> {{Routers in the Network }}
> {{ router-id next-hop link ver cost neighbors valid-origins }}
> {{ ================================================================ }}
> {{ 1 (self) - 1 [] [] }}
> {{waiting... }}
> {{Routers in the Network }}
> {{ router-id next-hop link ver cost neighbors valid-origins }}
> {{ ================================================================ }}
> {{ 1 (self) - 1 [] [] }}
> {{waiting... }}
> {{Routers in the Network }}
> {{ router-id next-hop link ver cost neighbors valid-origins }}
> {{ ================================================================ }}
> {{ 1 (self) - 1 [] [] }}
> {{waiting... }}
> {{TypeError: 'NoneType' object is not iterable }}
> {{waiting... }}
> {{Routers in the Network }}
> {{Last Topology Change: Wednesday Jan 23 15:40:34 2019 GMT }}
> {{ router-id next-hop link ver cost neighbors valid-origins }}
> {{ ================================================================= }}
> {{ 1 (self) - 1 ['2'] [] }}
> {{ 2 - 0 1 1 ['1', '3'] [] }}
> {{ 3 2 - 2 [] [] }}
> {{waiting... }}
> {{Routers in the Network }}
> {{Last Topology Change: Wednesday Jan 23 15:40:39 2019 GMT }}
> {{ router-id next-hop link ver cost neighbors valid-origins }}
> {{ ================================================================= }}
> {{ 1 (self) - 1 ['2'] [] }}
> {{ 2 - 0 1 1 ['1', '3'] [] }}
> {{ 3 2 - 1 2 ['2', '4'] [] }}
> {{ 4 2 - 1 3 ['3'] [] }}



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@qpid.apache.org
For additional commands, e-mail: dev-help@qpid.apache.org