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-rw-r--r--cpp/src/qpid/broker/SessionAdapter.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/cpp/src/qpid/broker/SessionAdapter.cpp b/cpp/src/qpid/broker/SessionAdapter.cpp
index 7c689d56fb..69fba58353 100644
--- a/cpp/src/qpid/broker/SessionAdapter.cpp
+++ b/cpp/src/qpid/broker/SessionAdapter.cpp
@@ -410,6 +410,7 @@ SessionAdapter::MessageHandlerImpl::subscribe(const string& queueName,
if(!destination.empty() && state.exists(destination))
throw NotAllowedException(QPID_MSG("Consumer tags must be unique"));
+ // We allow browsing (acquireMode == 1) of exclusive queues, this is required by HA.
if (queue->hasExclusiveOwner() && !queue->isExclusiveOwner(&session) && acquireMode == 0)
throw ResourceLockedException(QPID_MSG("Cannot subscribe to exclusive queue "
<< queue->getName()));