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From Mihkel Nõges <mihkel.no...@transferwise.com>
Subject Re: [Artemis] Master fails to start up after failback
Date Tue, 20 Oct 2015 07:12:36 GMT
Yes I saw that issue too and set myself as watcher of this when it was
created. I did not think it could be exactly the same as it is described to
present itself only in narrow timing related conditions. My case seems to
be much more broad and basic. Seems like nobody actually tried to set this
up in realistic situation.

Do you know of any existing production deployments of Artemis (or hornetq)
with failover? I thought Artemis as based on hornetq  should have it's
features as stable as last hornetq version. We have already used embedded
hornetq for some time happily. I think it would make a lot of sense to
grade the Artemis features publicly as what is their maturity and usage
statistics of each feature if known, so it would be easier to compare the
brokers even among the 3 variants of ActiveMQ family.

I think it's more safe for us to start building our first messaging
features on ActiveMQ 5.12.1 with JDBC backed Master-Slave instead of
Artemis and switch to Artemis once it has become more stable and also our
needs for scalability have grown to make it reasonable. Right now it seems
there are still too big blockers which may threaten the stability of our
system in Artemis.

I did not mean this letter to be in no means negative. In the opposite I
really hope Artemis would do well as it comes with such a great technical
foundation and elegant ideas. I think the best for Artemis would be to find
users that can trust it's features and improve it as they grow. This means
the nucleus of Artemis must be really solid and stable.

BR!
Mihkel Nõges



On 19 October 2015 at 22:15, Clebert Suconic <clebert.suconic@gmail.com>
wrote:

> Looks related to me:
>
> https://issues.apache.org/jira/browse/ARTEMIS-256
>
>
>
> On Mon, Oct 19, 2015 at 4:04 AM, Mihkel Nõges
> <mihkel.noges@transferwise.com> wrote:
> > Basic flow of getting unresponsive failback cluster:
> > Have machine with Ubuntu 14.04.3
> >
> >    1. Install libaio1, Java 1.8.0_60, maven 3.3.3, download and extract
> >    apache-artemis-1.1.0-bin
> >    <
> http://www.eu.apache.org/dist/activemq/activemq-artemis/1.1.0/apache-artemis-1.1.0-bin.tar.gz
> >
> > in
> >    /opt
> >    2. run $ mvn -Prelease install and $ mnv verify in
> >       /opt/apache-artemis-1.1.0/examples/features/ha/replicated-failback
> >    SUCCESS
> >    3. Clean data folders and starts both servers manually:
> >    $
> >    cd
> /opt/apache-artemis-1.1.0/examples/features/ha/replicated-failback/target
> >    $ rm -R server0/data/
> >    $ rm -R server1/data/
> >    $ server0/bin/artemis-service start
> >    Starting artemis-service
> >    artemis-service is now running (7154)
> >    $ server1/bin/artemis-service start
> >    Starting artemis-service
> >    artemis-service is now running (7180)
> >    4. Kill master server and wait for slave to take over
> >    $ kill -9 7154
> >
> >    $ tail -f server1/log/artemis.log
> >    08:52:54,798 INFO  [org.apache.activemq.artemis.core.server]
> AMQ221043:
> >    Protocol module found: [artemis-stomp-protocol]. Adding protocol
> support
> >    for: STOMP
> >    08:53:02,145 INFO  [org.apache.activemq.artemis.core.server]
> AMQ221109:
> >    Apache ActiveMQ Artemis Backup Server version 1.1.0 [null] started,
> waiting
> >    live to fail before it gets active
> >    08:53:03,582 INFO  [org.apache.activemq.artemis.core.server]
> AMQ221024:
> >    Backup server
> >    ActiveMQServerImpl::serverUUID=64ddff0f-7636-11e5-bfa8-f5004e6195f0 is
> >    synchronized with live-server.
> >    08:53:03,777 INFO  [org.apache.activemq.artemis.core.server]
> AMQ221031:
> >    backup announced
> >    08:55:59,292 INFO  [org.apache.activemq.artemis.core.server]
> AMQ221037:
> >    ActiveMQServerImpl::serverUUID=64ddff0f-7636-11e5-bfa8-f5004e6195f0 to
> >    become 'live'
> >    08:55:59,302 WARN  [org.apache.activemq.artemis.core.client]
> AMQ212004:
> >    Failed to connect to server.
> >    08:55:59,778 INFO  [org.apache.activemq.artemis.core.server]
> AMQ221003:
> >    trying to deploy queue jms.queue.exampleQueue
> >    08:55:59,829 WARN  [org.apache.activemq.artemis.core.client]
> AMQ212034:
> >    There are more than one servers on the network broadcasting the same
> node
> >    id. You will see this message exactly once (per node) if a node is
> >    restarted, in which case it can be safely ignored. But if it is logged
> >    continuously it means you really do have more than one node on the
> same
> >    network active concurrently with the same node id. This could occur
> if you
> >    have a backup node active at the same time as its live node.
> >    nodeID=64ddff0f-7636-11e5-bfa8-f5004e6195f0
> >    08:55:59,836 INFO  [org.apache.activemq.artemis.core.server]
> AMQ221007:
> >    Server is now live
> >    08:55:59,869 INFO  [org.apache.activemq.artemis.core.server]
> AMQ221020:
> >    Started Acceptor at broker3:61617 for protocols
> >    [CORE,MQTT,AMQP,HORNETQ,STOMP,OPENWIRE]
> >    5.
> >
> >    Start master again and observer the logs:
> >    $ server0/bin/artemis-service start
> >    Starting artemis-service
> >    artemis-service is now running (7388)
> >
> > $ tail -f server0/log/artemis.log
> > 08:57:24,625 INFO  [org.apache.activemq.artemis.core.server] AMQ221012:
> > Using AIO Journal
> > 08:57:24,694 INFO  [org.apache.activemq.artemis.core.server] AMQ221043:
> > Protocol module found: [artemis-server]. Adding protocol support for:
> CORE
> > 08:57:24,702 INFO  [org.apache.activemq.artemis.core.server] AMQ221043:
> > Protocol module found: [artemis-amqp-protocol]. Adding protocol support
> > for: AMQP
> > 08:57:24,731 INFO  [org.apache.activemq.artemis.core.server] AMQ221043:
> > Protocol module found: [artemis-hornetq-protocol]. Adding protocol
> support
> > for: HORNETQ
> > 08:57:24,733 INFO  [org.apache.activemq.artemis.core.server] AMQ221043:
> > Protocol module found: [artemis-mqtt-protocol]. Adding protocol support
> > for: MQTT
> > 08:57:24,743 INFO  [org.apache.activemq.artemis.core.server] AMQ221043:
> > Protocol module found: [artemis-openwire-protocol]. Adding protocol
> support
> > for: OPENWIRE
> > 08:57:24,878 INFO  [org.apache.activemq.artemis.core.server] AMQ221043:
> > Protocol module found: [artemis-stomp-protocol]. Adding protocol support
> > for: STOMP
> > 08:57:25,082 INFO  [org.apache.activemq.artemis.core.server] AMQ221109:
> > Apache ActiveMQ Artemis Backup Server version 1.1.0 [null] started,
> waiting
> > live to fail before it gets active
> > 08:57:27,043 INFO  [org.apache.activemq.artemis.core.server] AMQ221024:
> > Backup server
> > ActiveMQServerImpl::serverUUID=64ddff0f-7636-11e5-bfa8-f5004e6195f0 is
> > synchronized with live-server.
> > 08:57:27,948 INFO  [org.apache.activemq.artemis.core.server] AMQ221031:
> > backup announced
> > 08:57:31,227 WARN  [org.apache.activemq.artemis.core.client] AMQ212037:
> > Connection failure has been detected: AMQ119015: The connection was
> > disconnected because of server shutdown [code=DISCONNECTED]
> > 08:57:31,252 WARN  [org.apache.activemq.artemis.core.client] AMQ212037:
> > Connection failure has been detected: AMQ119015: The connection was
> > disconnected because of server shutdown [code=DISCONNECTED]
> > 08:57:31,307 WARN  [org.apache.activemq.artemis.core.client] AMQ212037:
> > Connection failure has been detected: AMQ119015: The connection was
> > disconnected because of server shutdown [code=DISCONNECTED]
> > 08:57:31,339 INFO  [org.apache.activemq.artemis.core.server] AMQ221037:
> > ActiveMQServerImpl::serverUUID=64ddff0f-7636-11e5-bfa8-f5004e6195f0 to
> > become 'live'
> > 08:57:31,360 WARN  [org.apache.activemq.artemis.core.client] AMQ212004:
> > Failed to connect to server.
> > 08:57:31,413 ERROR [org.apache.activemq.artemis.core.server] AMQ224008:
> > Failed to store id: java.lang.IllegalStateException: Cannot find add
> info 1
> > at
> >
> org.apache.activemq.artemis.core.journal.impl.JournalImpl.appendDeleteRecord(JournalImpl.java:799)
> > [artemis-journal-1.1.0.jar:1.1.0]
> > at
> >
> org.apache.activemq.artemis.core.journal.impl.JournalBase.appendDeleteRecord(JournalBase.java:183)
> > [artemis-journal-1.1.0.jar:1.1.0]
> > at
> >
> org.apache.activemq.artemis.core.journal.impl.JournalImpl.appendDeleteRecord(JournalImpl.java:79)
> > [artemis-journal-1.1.0.jar:1.1.0]
> > at
> >
> org.apache.activemq.artemis.core.persistence.impl.journal.JournalStorageManager.deleteID(JournalStorageManager.java:1194)
> > [artemis-server-1.1.0.jar:1.1.0]
> > at
> >
> org.apache.activemq.artemis.core.persistence.impl.journal.BatchingIDGenerator.deleteID(BatchingIDGenerator.java:152)
> > [artemis-server-1.1.0.jar:1.1.0]
> > at
> >
> org.apache.activemq.artemis.core.persistence.impl.journal.BatchingIDGenerator.cleanup(BatchingIDGenerator.java:75)
> > [artemis-server-1.1.0.jar:1.1.0]
> > at
> >
> org.apache.activemq.artemis.core.persistence.impl.journal.JournalStorageManager.loadBindingJournal(JournalStorageManager.java:1784)
> > [artemis-server-1.1.0.jar:1.1.0]
> > at
> >
> org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.loadJournals(ActiveMQServerImpl.java:1625)
> > [artemis-server-1.1.0.jar:1.1.0]
> > at
> >
> org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.initialisePart2(ActiveMQServerImpl.java:1535)
> > [artemis-server-1.1.0.jar:1.1.0]
> > at
> >
> org.apache.activemq.artemis.core.server.impl.SharedNothingBackupActivation.run(SharedNothingBackupActivation.java:249)
> > [artemis-server-1.1.0.jar:1.1.0]
> > at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_60]
> > 08:57:31,540 WARN  [org.apache.activemq.artemis.core.server] AMQ222173:
> > Queue jms.queue.exampleQueue is duplicated during reload. This queue will
> > be renamed as jms.queue.exampleQueue-0
> > 08:57:31,550 ERROR [org.apache.activemq.artemis.core.server] AMQ224000:
> > Failure in initialisation: java.lang.IllegalStateException: Cursor 2 had
> > already been created
> > at
> >
> org.apache.activemq.artemis.core.paging.cursor.impl.PageCursorProviderImpl.createSubscription(PageCursorProviderImpl.java:97)
> > [artemis-server-1.1.0.jar:1.1.0]
> > at
> >
> org.apache.activemq.artemis.core.server.impl.PostOfficeJournalLoader.initQueues(PostOfficeJournalLoader.java:140)
> > [artemis-server-1.1.0.jar:1.1.0]
> > at
> >
> org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.loadJournals(ActiveMQServerImpl.java:1631)
> > [artemis-server-1.1.0.jar:1.1.0]
> > at
> >
> org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.initialisePart2(ActiveMQServerImpl.java:1535)
> > [artemis-server-1.1.0.jar:1.1.0]
> > at
> >
> org.apache.activemq.artemis.core.server.impl.SharedNothingBackupActivation.run(SharedNothingBackupActivation.java:249)
> > [artemis-server-1.1.0.jar:1.1.0]
> > at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_60]
> >
> >
> > On 19 October 2015 at 10:31, Mihkel Nõges <mihkel.noges@transferwise.com
> >
> > wrote:
> >
> >> Hi Clebert,
> >>
> >> I do not have other code to share with you but the example code in
> Artemis
> >> 1.1.0 binary deployment package. I'm running
> >> org.apache.activemq.artemis.jms.example.ReplicatedFailbackExample
> >>
> >> And only commented out the serverStart and killServer calls which I am
> >> doing manually.
> >>
> >> I do not think I do any of the steps too fast as I tail the server log
> >> files in parallel and see everything is finished when I start the fail
> >> back. I have waited many minutes in between.
> >>
> >> Only changes in configuration to the test is changing localhost
> addresses
> >> with broker3 to make the cluster accessible remotely.
> >>
> >> BR!
> >> MIhkel
> >>
> >> On 18 October 2015 at 17:49, Clebert <clebert.suconic@gmail.com> wrote:
> >>
> >>> Im not on my computer now but it sounds like you are doing a fail back
> >>> immediately after failed over. It takes some time (seconds) to the
> server
> >>> to activate on the backup.
> >>>
> >>> Later the server will need to copy the data back before it can be
> >>> activated in fail back mode.
> >>>
> >>> It sounds the live is not reaching backup for fail back.
> >>>
> >>> I will try looking it at it on Monday. Maybe you could post your
> example
> >>> at your GitHub fork.
> >>>
> >>> -- Clebert Suconic typing on the iPhone.
> >>>
> >>> > On Oct 18, 2015, at 08:15, Mihkel Nõges <
> mihkel.noges@transferwise.com>
> >>> wrote:
> >>> >
> >>> > Hello again!
> >>> >
> >>> > I would be very grateful If someone could answer my questions. We
> need
> >>> the high availability to work to use the broker in production.
> >>> >
> >>> > When I run the replicated-failback example in one machine (broker3)
> it
> >>> succeeds.
> >>> >
> >>> > It fails when I run the same test - exactly the same servers with
> >>> slightly modified client remotely.
> >>> >
> >>> > I run client in debug mode from my IDE with commented out serverStart
> >>> and killServer calls.
> >>> > Deleted data folders and started the servers:
> >>> > artemis@broker3
> :/opt/apache-artemis-1.1.0/examples/features/ha/replicated-failback/target$
> >>> rm -R server0/data/
> >>> >
> >>> > artemis@broker3
> :/opt/apache-artemis-1.1.0/examples/features/ha/replicated-failback/target$
> >>> rm -R server1/data/
> >>> >
> >>> > artemis@broker3
> :/opt/apache-artemis-1.1.0/examples/features/ha/replicated-failback/target$
> >>> server0/bin/artemis-service start
> >>> >
> >>> > Starting artemis-service
> >>> >
> >>> > artemis-service is now running (23357)
> >>> >
> >>> > artemis@broker3
> :/opt/apache-artemis-1.1.0/examples/features/ha/replicated-failback/target$
> >>> server1/bin/artemis-service start
> >>> >
> >>> > Starting artemis-service
> >>> >
> >>> > artemis-service is now running (23383)
> >>> >
> >>> > Starting client and stopping on breakpoint at line 103:
> >>> > //ServerUtil.killServer(server0);
> >>> > // Step 11. Acknowledging the 2nd half of the sent messages will fail
> >>> as failover to the
> >>> > // backup server has occurred
> >>> > try {
> >>> >    message0.acknowledge();  //line 103
> >>> > killing server0
> >>> > artemis@broker3
> :/opt/apache-artemis-1.1.0/examples/features/ha/replicated-failback/target$
> >>> kill -9 23357
> >>> >
> >>> > Proceeding to breakpoint at line 121:
> >>> > //server0 = ServerUtil.startServer(args[0],
> >>> ReplicatedFailbackExample.class.getSimpleName() + "0", 0, 10000);
> >>> >
> >>> > // Step 11. Acknowledging the 2nd half of the sent messages will fail
> >>> as failover to the
> >>> > // backup server has occurred
> >>> > try {
> >>> >    message0.acknowledge(); // line 121
> >>> > Starting server0:
> >>> > artemis@broker3
> :/opt/apache-artemis-1.1.0/examples/features/ha/replicated-failback/target$
> >>> server0/bin/artemis-service start
> >>> >
> >>> > Starting artemis-service
> >>> >
> >>> > artemis-service is now running (24240)
> >>> >
> >>> > Server0 writes ERROR to it's log (see attached server0_artemis.log).
> >>> > Now when trying to proceed with the client it writes the following
in
> >>> the log and does not exit, but remains hanging forever:
> >>> >
> >>> > Oct 18, 2015 2:55:34 PM
> >>>
> org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >>> fail
> >>> >
> >>> > WARN: AMQ212037: Connection failure has been detected: AMQ119015: The
> >>> connection was disconnected because of server shutdown
> [code=DISCONNECTED]
> >>> >
> >>> > Got message: This is text message 20 (redelivered?: false)
> >>> >
> >>> > Got exception while acknowledging message: AMQ119014: Timed out after
> >>> waiting 30,000 ms for response when sending packet 43
> >>> >
> >>> > Got message: This is text message 21 (redelivered?: false)
> >>> >
> >>> > Got message: This is text message 22 (redelivered?: false)
> >>> >
> >>> > Got message: This is text message 23 (redelivered?: false)
> >>> >
> >>> > Got message: This is text message 24 (redelivered?: false)
> >>> >
> >>> > Got message: This is text message 25 (redelivered?: false)
> >>> >
> >>> > Got message: This is text message 26 (redelivered?: false)
> >>> >
> >>> > Got message: This is text message 27 (redelivered?: false)
> >>> >
> >>> > Got message: This is text message 28 (redelivered?: false)
> >>> >
> >>> > Got message: This is text message 29 (redelivered?: false)
> >>> >
> >>> > As a result the slave (server1) remains stopped, not restarted as
> >>> expected and the master (server0) process appears to be running but
> does
> >>> not accept any connections.
> >>> >
> >>> > Exactly the same behavior is observable every time I try this.
> >>> >
> >>> > BR!
> >>> > Mihkel
> >>> >
> >>> >> On 13 October 2015 at 20:17, Mihkel Nõges <
> >>> mihkel.noges@transferwise.com> wrote:
> >>> >> Hi Clebert,
> >>> >>
> >>> >> No test, just doing it on command line with standalone servers.
I'm
> >>> using 1.1.0 installed with wget, not the snapshot.
> >>> >>
> >>> >> I'm wondering what should be the suggested procedure for admins
to
> do
> >>> changes to HA cluster of 2 or 3 nodes of Artemis. If one of the nodes
> is
> >>> master by configuration, do they need to change it's config before
> >>> restarting it to become slave to have seamless change process and make
> some
> >>> instance master by configuration only if all the instances need to be
> >>> restarted?
> >>> >>
> >>> >> I tried also a cluster with 2 masters and 2 slaves with 2 separate
> >>> group-name values, but for some reason the second master I started
> became
> >>> slave for the first immediately. I expected it to become a clustered
> >>> load-balancing parallel master. Our loads are not yet that high to
> require
> >>> more than one master, so it's just a theoretical question.
> >>> >>
> >>> >> BR!
> >>> >> Mihkel
> >>> >>
> >>> >>> On 13 October 2015 at 20:03, Clebert Suconic <
> >>> clebert.suconic@gmail.com> wrote:
> >>> >>> The master needs to copy its data from the backup back to live
> before
> >>> >>> it's activated.
> >>> >>>
> >>> >>> Do you have a test replicating this?
> >>> >>>
> >>> >>> Did you try the snapshot build?
> >>> >>>
> >>> >>> On Tue, Oct 13, 2015 at 11:58 AM, Mihkel Nõges
> >>> >>> <mihkel.noges@transferwise.com> wrote:
> >>> >>> > Hi,
> >>> >>> >
> >>> >>> > I configured replicating HA master-slave of Artemis 1.1.0
> instances
> >>> on
> >>> >>> > Ubuntu 14.04.3.
> >>> >>> >
> >>> >>> > When I kill master the slave takes over as expected and
starts
> >>> serving as
> >>> >>> > new master. When I then start the old master, it fails
with the
> >>> following
> >>> >>> > errors in the log:
> >>> >>> >
> >>> >>> > 16:35:46,476 ERROR [org.apache.activemq.artemis.core.server]
> >>> AMQ224008:
> >>> >>> > Failed to store id: java.lang.IllegalStateException: Cannot
find
> >>> add info 1
> >>> >>> > at
> >>> >>> >
> >>>
> org.apache.activemq.artemis.core.journal.impl.JournalImpl.appendDeleteRecord(JournalImpl.java:799)
> >>> >>> > [artemis-journal-1.1.0.jar:1.1.0]
> >>> >>> > at
> >>> >>> >
> >>>
> org.apache.activemq.artemis.core.journal.impl.JournalBase.appendDeleteRecord(JournalBase.java:183)
> >>> >>> > [artemis-journal-1.1.0.jar:1.1.0]
> >>> >>> > at
> >>> >>> >
> >>>
> org.apache.activemq.artemis.core.journal.impl.JournalImpl.appendDeleteRecord(JournalImpl.java:79)
> >>> >>> > [artemis-journal-1.1.0.jar:1.1.0]
> >>> >>> > at
> >>> >>> >
> >>>
> org.apache.activemq.artemis.core.persistence.impl.journal.JournalStorageManager.deleteID(JournalStorageManager.java:1194)
> >>> >>> > [artemis-server-1.1.0.jar:1.1.0]
> >>> >>> > at
> >>> >>> >
> >>>
> org.apache.activemq.artemis.core.persistence.impl.journal.BatchingIDGenerator.deleteID(BatchingIDGenerator.java:152)
> >>> >>> > [artemis-server-1.1.0.jar:1.1.0]
> >>> >>> > at
> >>> >>> >
> >>>
> org.apache.activemq.artemis.core.persistence.impl.journal.BatchingIDGenerator.cleanup(BatchingIDGenerator.java:75)
> >>> >>> > [artemis-server-1.1.0.jar:1.1.0]
> >>> >>> > at
> >>> >>> >
> >>>
> org.apache.activemq.artemis.core.persistence.impl.journal.JournalStorageManager.loadBindingJournal(JournalStorageManager.java:
> >>> 1784)
> >>> >>> > [artemis-server-1.1.0.jar:1.1.0]
> >>> >>> > at
> >>> >>> >
> >>>
> org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.loadJournals(ActiveMQServerImpl.java:
> >>> 1625)
> >>> >>> > [artemis-server-1.1.0.jar:1.1.0]
> >>> >>> > at
> >>> >>> >
> >>>
> org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.initialisePart2(ActiveMQServerImpl.java:
> >>> 1535)
> >>> >>> > [artemis-server-1.1.0.jar:1.1.0]
> >>> >>> > at
> >>> >>> >
> >>>
> org.apache.activemq.artemis.core.server.impl.SharedNothingBackupActivation.run(SharedNothingBackupActivation.java:249)
> >>> >>> > [artemis-server-1.1.0.jar:1.1.0]
> >>> >>> > at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_60]
> >>> >>> >
> >>> >>> > 16:35:46,572 WARN  [org.apache.activemq.artemis.core.server]
> >>> AMQ222173:
> >>> >>> > Queue jms.queue.DLQ is duplicated during reload. This
queue will
> be
> >>> renamed
> >>> >>> > as jms.queue.DLQ-0
> >>> >>> > 16:35:46,572 ERROR [org.apache.activemq.artemis.core.server]
> >>> AMQ224000:
> >>> >>> > Failure in initialisation: java.lang.IllegalStateException:
> Cursor
> >>> 2 had
> >>> >>> > already been created
> >>> >>> > at
> >>> >>> >
> >>>
> org.apache.activemq.artemis.core.paging.cursor.impl.PageCursorProviderImpl.createSubscription(PageCursorProviderImpl.java:97)
> >>> >>> > [artemis-server-1.1.0.jar:1.1.0]
> >>> >>> > at
> >>> >>> >
> >>>
> org.apache.activemq.artemis.core.server.impl.PostOfficeJournalLoader.initQueues(PostOfficeJournalLoader.java:140)
> >>> >>> > [artemis-server-1.1.0.jar:1.1.0]
> >>> >>> > at
> >>> >>> >
> >>>
> org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.loadJournals(ActiveMQServerImpl.java:
> >>> 1631)
> >>> >>> > [artemis-server-1.1.0.jar:1.1.0]
> >>> >>> > at
> >>> >>> >
> >>>
> org.apache.activemq.artemis.core.server.impl.ActiveMQServerImpl.initialisePart2(ActiveMQServerImpl.java:
> >>> 1535)
> >>> >>> > [artemis-server-1.1.0.jar:1.1.0]
> >>> >>> > at
> >>> >>> >
> >>>
> org.apache.activemq.artemis.core.server.impl.SharedNothingBackupActivation.run(SharedNothingBackupActivation.java:249)
> >>> >>> > [artemis-server-1.1.0.jar:1.1.0]
> >>> >>> > at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_60]
> >>> >>> >
> >>> >>> > As a result both master and the slave remain unaccessible
and no
> >>> further
> >>> >>> > restarts solve the situation.
> >>> >>> >
> >>> >>> > Attached also master and slave broker.xml files.
> >>> >>> >
> >>> >>> > BR!
> >>> >>> >
> >>> >>> > Mihkel Nõges
> >>> >>>
> >>> >>>
> >>> >>>
> >>> >>> --
> >>> >>> Clebert Suconic
> >>> >
> >>>
> >>
> >>
>
>
>
> --
> Clebert Suconic
>

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