Hi,
How does KahaDB work with OS-level backups? Would a DB restored from
tape be recoverable?
On a related note, is it possible to snapshot a KahaDB?
Cheers,
Steve
That seems like a bug. Can you open an issue with your test case. The
advisory should be conditional on success of the transaction.
On 31 May 2011 19:22, "karen" wrote:
> Hi Brendan,
>
> I have set the listener container to session transacted. When an exception
> is thrown in the listener, then sp
I'm not having any luck even with Auto Ack. I'm using Apache.NMS framework
though.
Messages do get to ProcessMessage method but when the exception is thrown,
they don't get to DLQ.
Do you know what I'm doing wrong here?
class DeadLetterQueueTest
{
static void Main(string[] arg
Sorry - I didn't mean to introduce yet more confusion, I was just wanting to
encourage good practice/caution. There's no need for this to open any holes,
there are ways of securing a SVRCONN channel via e.g. SSL - this is fine in
native WMQ but I don't know whether the ActiveMQ bridging piece can d
The client most definitely doesn't want a security hole opened up with a
SVRCONN (the channel type you get by default when you don't specify the
channel property at all on the MQ connection factory).
Is there a secure bi-directional communication alternative between ActiveMQ
and WMQ, or is the onl
Hi Brendan,
I have set the listener container to session transacted. When an exception
is thrown in the listener, then spring rolls back the transaction.
But the problem is that an advisory message is still sent to the consumed
advisory topic( before the rollback). Thus giving an incorrect indica
BTW WMQ client connections (via SVRCONN) are bi-directional. Sender/Receiver
channels are unidirectional and set up in pairs between Queue Managers. HTH.
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Ah I see, so this remote jmsBridgeConnector that Edan refers to would equate
to what I described as "bridge code" - essentially using the WMQ JMS classes
(you'll need the JAR containing com.ibm.mq.jms.MQQueueConnectionFactory of
course) to make a separate connection over the network using the WMQ c
Hi Aneesh
There are many kinds of advisory messages that u can set up. Check this site
out:-
http://activemq.apache.org/advisory-message.html
These are messages that activeMQ sends to specific topics about information
on the producer/consumer etc. All you need to do is update the activemq conf
f
Hi Edan,
I'm using ActiveMQ 5.5 and get WMQ complaints about remote channel not being
of the correct type when I have the connection factory specify a channel
property that corresponds to a receiver channel on WMQ. I posted on the
Camel users group wondering if there was an abstraction available o
Hi Andy,
Thanks for your response. We're waiting to see if the client and/or their
IBM support specialist can come up with a solution. Our application will
both send (for a synchronous request/response -- yuck) and receive messages
from them. The main problem is that their system is a mish mash o
ActiveMQ can talk to IBM's MQ via the "jmsBridgeConnectors"
http://activemq.apache.org/jms-to-jms-bridge.html . There was a bug after AMQ
5.2.0 until 5.5 that prevented it, but I've tested it in 5.5 successfully. I
defined a remote ConnectionFactory like so:
for clientAck, that is needed, have a look at:
org.apache.activemq.ActiveMQMessageConsumer#dispatch
The automatic dlq processing occurs if onMessage throws an exception,
but it is bypassed for transactions and clientack mode as the acking
is out of control of the consumer in that case.
If you use
You can check the open ports in the machine and see if the port used by your
second instance is used by another process. If you are in windows netstat -a
-b will show you the port and the listening app.
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Hi,
Can you please expand a bit on this?
"Typically you NAK a message by sending it to some bad message
destination; i.e. you still consume it."
I'm looking to use "individualDeadLetterStrategy" to separate failed
messages into separate DLQs. But my client code (when using
ClientAcknowledge mo
Hi:
Thanks for the response. We don't use AMQ console and didn't config
conf/jetty.xml entry in AMQ config xml file.
We embedded AMQ into our application and we do want to run more than 1
separate instance without any sharing. This is for some automated testing on
the same machine so that the te
yep, that is a known issue that is resolved on trunk.
http://svn.apache.org/viewvc?view=revision&revision=1088989
The ACTIVEMQ_OPTS var was evaluated before sourcing the user env.
The current trunk version of the script will work as expected:
http://svn.apache.org/viewvc/activemq/trunk/assembly/
I'm using activemq 5.5 and the .activemqrc file is not being used.
In the .activemqrc, I change the default MEMORY+OPTS env variables.
# Set jvm memory configuration
ACTIVEMQ_OPTS_MEMORY="-Xms512M -Xmx1024M"
if [ -z "$ACTIVEMQ_OPTS" ] ; then
ACTIVEMQ_OPTS="$ACTIVEMQ_OPTS_MEMORY
-Dorg.apache.acti
Indeed not - WebSphere MQ predates many of the other MOM technologies around
and the sender/receiver channel can talk to other WMQ implementations at
different versions, but not to ActiveMQ.
On your comment about standards, bear in mind that JMS is an API spec and
not a protocol / implementation t
@Gary Tully and Marcelo Jabali : thanks a lot for your answers.
Indeed durable topics handle the reliability issue caused by subscribers
shutting down.
I have another requirement : I'd like that any new subscriber receives all
the messages of a queue/topic posted during the whole day.
Here is a s
that has to be done at the application level. The serialized jms
message is stored as a blob of bytes.
have a peek at: addMessage/getMessage of the persistence adapter impl
to see the serialization etc:
http://svn.apache.org/viewvc/activemq/trunk/activemq-core/src/main/java/org/apache/activemq/st
I have setup JDBC Persistence Adapter in MSSQL2008. And topic and queue
information were successfully log into database.
But i cant find a way to convert "ACTIVEMQ_MSGS.MSG" (image data type) value
to plain text value.
Is there a way to do on database level, or we have to retrieve those data
and
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