Fix log prefix for RemoteBackup and PrimaryTxObserver objects.
Use short UUIDs for showing UUID sets in logs.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1619581 13f79535-47bb-0310-9956-ffa450edef68

Include broker status and ID in (almost) all logging messages.
Makes it much easier to track broker state and interactions.

Sundry other logging improvements including:
- Demote noisy messages to trace - connections from rgmanager status checks, searching for primary.
- Rationalise start-up messages.
- Improved queue state detail replicating subscription and queue guard initialization.
- Fail to prepare TX is error.
- Collect all primary TX errors into one.
- Fix status of catchup brokers in primary membership for logging.
- Add process name/PID info to client connection messages.
- Various minor message tweaks.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1619003 13f79535-47bb-0310-9956-ffa450edef68

Removed: std::ostream& operator<<(std::ostream& o, const QueueSetPrinter& qp)
Already gone: void collectQueueReplicators(const boost::shared_ptr<Exchange>& ex, set<boost::shared_ptr<QueueReplicator> >& collect)

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1589431 13f79535-47bb-0310-9956-ffa450edef68

This is regression introduced in r1561206: CommitDate: Fri Jan 24 21:54:59 2014 +0000
  QPID-5513: HA backup fails if number of replicated queues exceeds number of channels.

Fixed by the current commit. PrimaryQueueLimits was not taking account of queues already
on the broker prior to promotion.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1585507 13f79535-47bb-0310-9956-ffa450edef68

Backups send prepare messages to primary, primary delays completion of prepare
till all are prepared (or there is a failure).

This is NOT the production solution - blocking could cause a deadlock. We need
to introduce asynchronous completion of prepare without blocking. This
interim solution allows testing on other aspects of TX support.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1509424 13f79535-47bb-0310-9956-ffa450edef68

On primary a PrimaryTxObserver observes a transaction's TxBuffer and generates
transaction events on a tx-replication-queue. On the backup a TxReplicator
receives the events and constructs a TxBuffer equivalent to the one in the
primary.

Unfinished:
- Primary does not wait for backups to prepare() before committing.
- All connected backups are assumed to be in the transaction, there are race
  conditions around brokers joining/leavinv where this assumption is invalid.
- Need more tests.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1509423 13f79535-47bb-0310-9956-ffa450edef68

This class really was intended as a observer for broker-level events which
includes configuration but may in future include other non-configuration events
such as transactions.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1509420 13f79535-47bb-0310-9956-ffa450edef68

Previously HA code used queue sequence numbers to identify messasges.
This assumes that message sequence is identical on primary and backup.

Implementing new features (for example transactions) requires that we tolerate
ordering differences between primary and backups.

This patch introduces a new, queue-scoped HA sequence number managed by the HA
plugin.  The HA ID is set *before* the message is enqueued and assigned a queue
sequence number. This means it is possible to identify messages before they are
enqueued, e.g. messages in an open transaction.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1493771 13f79535-47bb-0310-9956-ffa450edef68

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1449831 13f79535-47bb-0310-9956-ffa450edef68

Previously both Primary and Backup would calculate the qpid.replicate value
independently, assuming the result would be the same. In the case of exclusive
queues, the exclusivity can change over time so its possible that primary and
backup won't agree.

Now only Primary does the calculation with exclusive, auto-delete etc. and puts
an explicity qpid.replicate in the queue or event arguments. Backup uses the
value set by primary.

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@1443678 13f79535-47bb-0310-9956-ffa450edef68