When trying to get the bindings for an address the getBindingsForAddress
method will create a Bindings instance if there are no bindings for the
address. This is unnecessary in most circumstances so use the
lookupBindingsForAddress method instead and check for null.
MULTICAST messages forwarded by a core bridge will not be routed to any
ANYCAST queues and vice-versa. Diverts have the ability to configure how
routing-type is treated. Core bridges now support this same kind of
functionality. By default the bridge does not alter the routing-type of
forwarded messages to maintain compatibility with existing behavior.
Large messages pendingRecordID is not accessed atomically, leading
to races that would lead to records that cannot been found on the
journal for deletion: it would lead to cause NPE that won't clean
the pending tasks on the current OperationContextImpl.
Adding a cleanup on error of those tasks and avoiding the race
to happen by adding proper synchronization will both enforce
correct clean up when something bad happen and avoid NPE.
In PagingManagerImpl#getPageStore() the operations on the map 'stores'
are not synchronzed and it's possible that more than one paging store is
created for one address.
PageSubscriptionImpl::ackTx is already performing a counter update
using the message persistent size: the size can be reused on
PagePosition::setPersistentSize, avoiding to query the page cache just
to compute it.
These improvements were also part of this task:
- Routing is now cached as much as possible.
- A new Runnable is avoided for each individual message,
since we use the Netty executor to perform delivery
https://issues.apache.org/jira/browse/ARTEMIS-2205
TransactionImpl::properties are often not used and could be
avoided to be allocated.
OperationContextImpl.TaskHolders instances are turned into static
classes to avoid refecencing back the context, making the life
easier for the GC.
OperationContexImpl volatile loads can be reduced to make the
code faster on the hot path.
When a receiving transaction is committed in a paging situation,
if a page happens to be completed and it will be deleted in a
transaction operation (PageCursorTx). The other tx operation
RefsOperation needs to access the page (in PageCache) to finish
its job. There is a chance that the PageCursorTx removes the
page before RefsOperation and it will cause the RefsOperation
failed to find a message in a page.
When a node tries to reconnects to another node in a scale down cluster,
the reconnect request gets denied by the other node and keeps retrying,
which causes tasks in the ordered executor accumulate and eventually OOM.
The fix is to change the ActiveMQPacketHandler#handleCheckForFailover
to allow reconnect if the scale down node is the node itself.
Not closing the InputStream makes this test flaky on Windows. The test
breaks because FileMoveManager::delete(java.io.File) Line 221 fails
to delete the file if it's still "owned" by the JVM process on Windows.
With AMQP protocol when some messages are received in a transaction,
calling JMX QueueControl.listDeliveringMessages() returns empty list
before the transaction is committed.
Add test cases
Add GroupSequence to Message Interface
Implement Support closing/reset group in queue impl
Update Documentation (copy from activemq5)
Change/Fix OpenWireMessageConverter to use default of 0 if not set, for OpenWire as per documentation http://activemq.apache.org/activemq-message-properties.html
Implement custom LVQ Key and Non-Destructive in broker - protocol agnostic
Make feature configurable via broker.xml, core apis and activemqservercontrol
Add last-value-key test cases
Add non-destructive with lvq test cases
Add non-destructive with expiry-delay test cases
Update documents
Add new methods to support create, update with new attributes
Refactor to pass through queue-attributes in client side methods to reduce further method changes for adding new attributes in future and avoid methods with endless parameters. (note: in future this should prob be done server side too)
Update existing test cases and fake impls for new methods/attributes
Add Concurrency Test to expose concurrency errors seen in logs.
Add Fix to ensure TypedProperties to ensure threadsafety
Add forEach and forEachKey to allow for provide a thread safe way of iterating through keys and values, without needing to duplicate the collection.
Add getMapNames method to remove code duplication and to ensure thread safe
Further fix around network loss.
If network loss (split) and slave activates, for a period its config used when it initializes in initialisePart2 was stale.
Add/Extend test to ensure address-setting change made on live preserved on slave (after activation)
Add/Extend test to ensure security-setting change made on live preserved on backup (after activation)
Extend test case to reproduce problem of client created queues being incorrectly removed on simple reload of config.
Add a flag/field to the queues created by configuration/broker.xml so we can correctly filter only queues created/managed by config.
Update listConfiguredQueues to use the new queue flag
Add Tests
Add implementation inline with other queue updatable settings.
Enhance tests to ensure queue is not destroyed during config change and messages in queue already are preserved
Revert previous fix
Keep original ConfigChangeTest
Apply new non-destructive fix.
Enhance tests to ensure messages in queues are not lost either on reload when running or when config changed on-restart (e.g. queue i not destroyed)
Any failure to deploy an address or queue will short-circuit the broker
initialization process preventing any other addresses or queues from
being deployed as well as other critical resources like acceptors, etc.
The ServerSessionPacketHandler has a close() callback handler which will
delete any pending large messages. However, there is a race where a
large message can be routed, then the close delete the associated large
message resulting in data loss.
First, QueueQuery should use address name for address settings
The name used for looking up address settings for a queue now uses the
address name if there is a local queue binding
Second, make sure sent credits to the server is the correct value
Fix checkstyle
Avoid duplicated logic
Ability to filter and group
Instantiate SimpleString property key once
Get property value via getObjectProprty to ensure all special mapped properties such as in AMQPMessage would return
Avoid a custom string to represent null, instead rely on Java's representation "null" by using Objects.toString to get the string value of the property value used to group by.
Seperate plugin interface by area, all extending a base interface.
Update code to check and call only plugins implementing specific interfaces.
Existing interface extends all the new interfaces for back compatibility or those who want simplicity and don't care about perf.
Michael André Pearce
yang wei
Justin Bertram
Francesco Nigro
Emmanuel Hugonnet
Howard Gao
Qihong Xu
Clebert Suconic
yb
JiriOndrusek
andytaylor
feuillemorte
Ingo Weiss
Andreas Frohwerk
Roddie Kieley
sebthom
Arthur Fritz Santiago
Ville Skyttä
Martyn Taylor
Christopher L. Shannon (cshannon)
Carsten Lohmann