[
https://issues.apache.org/jira/browse/QPID-7618?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15885433#comment-15885433
]
Keith Wall commented on QPID-7618:
----------------------------------
A couple of comments:
# Upgrading from 6.1 with a queue with a producer flow control defined causes a
stack trace. Upgrade assumes camel cased names.
# The UI uses the screen label "Maximum Queue Depth including headers" but this
disagrees with the {ProducerFlowControlOverflowPolicyHandler} imply which uses
{{queueDepthBytes}} rather than {{queueDepthBytesIncludingHeader}}. I think
PFC should consider the header even though this will be a change in behaviour
from previous versions.
# After upgrade, for queue with no policy, on edit the dialogue makes the
policy attribute field in error and forces me to change it back to None.
# The -1s in the queue show tab are confusing. How is a user supposed to know
what this means?
# The method name Queue#getLesserOldestEntry communicates nothing to me.
Furthermore, I don't think the Queue API in general should have this concern.
This is something particular to ring queue policy so the responsibility for
implementing the delete should reside with it. Personally, I find the current
behaviour of ring policy with sorted queues surprising. If sorted queue types
are to support the ring policy, I'd prefer if they just purged the eldest entry.
{noformat}
java.lang.NullPointerException: null
at
org.apache.qpid.server.queue.AbstractQueue.getOldestMessageArrivalTime(AbstractQueue.java:1406)
~[classes/:na]
at
org.apache.qpid.server.queue.AbstractQueue.getOldestMessageAge(AbstractQueue.java:1444)
~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_111]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
~[na:1.8.0_111]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[na:1.8.0_111]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_111]
at
org.apache.qpid.server.model.ConfiguredObjectMethodAttributeOrStatistic.getValue(ConfiguredObjectMethodAttributeOrStatistic.java:68)
~[classes/:na]
at
org.apache.qpid.server.model.ConfiguredObjectMethodStatistic.getValue(ConfiguredObjectMethodStatistic.java:26)
~[classes/:na]
at
org.apache.qpid.server.model.AbstractConfiguredObject.getStatistics(AbstractConfiguredObject.java:3159)
~[classes/:na]
at
org.apache.qpid.server.queue.StandardQueueImplWithAccessChecking.getStatistics(StandardQueueImplWithAccessChecking.java:46)
~[classes/:na]
at
org.apache.qpid.server.model.AbstractConfiguredObject.getStatistics(AbstractConfiguredObject.java:3146)
~[classes/:na]
at
org.apache.qpid.server.management.plugin.servlet.rest.ConfiguredObjectToMapConverter.incorporateStatisticsIntoMap(ConfiguredObjectToMapConverter.java:218)
~[classes/:na]
at
org.apache.qpid.server.management.plugin.servlet.rest.ConfiguredObjectToMapConverter.convertObjectToMap(ConfiguredObjectToMapConverter.java:65)
~[classes/:na]
at
org.apache.qpid.server.management.plugin.servlet.rest.ConfiguredObjectToMapConverter.incorporateChildrenIntoMap(ConfiguredObjectToMapConverter.java:271)
~[classes/:na]
at
org.apache.qpid.server.management.plugin.servlet.rest.ConfiguredObjectToMapConverter.convertObjectToMap(ConfiguredObjectToMapConverter.java:69)
~[classes/:na]
at
org.apache.qpid.server.management.plugin.servlet.rest.RestServlet.doGet(RestServlet.java:301)
~[classes/:na]
at
org.apache.qpid.server.management.plugin.servlet.rest.AbstractServlet.doGet(AbstractServlet.java:123)
~[classes/:na]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:575)
~[geronimo-servlet_3.0_spec-1.0.jar:1.0]
{noformat}
> Ring policy type
> ----------------
>
> Key: QPID-7618
> URL: https://issues.apache.org/jira/browse/QPID-7618
> Project: Qpid
> Issue Type: New Feature
> Components: Java Broker
> Affects Versions: qpid-java-6.1.1, qpid-java-7.0
> Reporter: Tomas Vavricka
> Assignee: Alex Rudyy
> Labels: policy-type, queue, ring
> Fix For: qpid-java-7.0
>
> Attachments: 0001-QPID-7569-Ring-policy-type.patch
>
>
> It would be good if Java Broker will support ring policy.
> Ring policy - delete oldest message(s) when queue capacity is reached
> Queue capacity can be defined by maximum count of message and maximum size of
> messages (including header).
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
