+1
Gordon Sim wrote
> On 06/21/2013 01:32 PM, Christian Fromme wrote:
>> Hi,
>>
>> playing around with Qpid this got my attention:
>>
>> When the qpidd vanishes during a client calling this:
>>
>> Connection connection(url, connection_options);
>
> You need a connection.open() here.
>
>> Session session = connection.createSession();
>> Sender sender = session.createSender(foo);
>>
>> I get this in the client:
>>
>> #0 0xffffe424 in __kernel_vsyscall ()
>> #1 0xb4c089d6 in nanosleep () from /lib/libc.so.6
>> #2 0xb4c3a8ac in usleep () from /lib/libc.so.6
>> #3 0xb5968e72 in qpid::sys::usleep(unsigned long long) () from
>> /opt/qpid/qpid-0.20-1dfs/lib/libqpidcommon.so.2
>> #4 0xb785c34f in
>> qpid::client::amqp0_10::ConnectionImpl::connect(qpid::sys::AbsTime
>> const&) () from /opt/qpid/qpid-0.20-1dfs/lib/libqpidmessaging.so.2
>> #5 0xb785c636 in qpid::client::amqp0_10::ConnectionImpl::open() ()
>> from /opt/qpid/qpid-0.20-1dfs/lib/libqpidmessaging.so.2
>> #6 0xb78589e4 in qpid::client::amqp0_10::ConnectionImpl::reopen() ()
>> from /opt/qpid/qpid-0.20-1dfs/lib/libqpidmessaging.so.2
>> #7 0xb7858fa9 in
>> qpid::client::amqp0_10::ConnectionImpl::newSession(bool, std::string
>> const&) () from /opt/qpid/qpid-0.20-1dfs/lib/libqpidmessaging.so.2
>> #8 0xb782866e in
>> qpid::messaging::Connection::createSession(std::string const&) () from
>> /opt/qpid/qpid-0.20-1dfs/lib/libqpidmessaging.so.2
>>
>> And it seems to never return. No exception. Nothing. Is this a known
>> issue? Can I tweak around the connection options to change this
>> (currently got: "{reconnect:true,heartbeat:5}")?
>
> The stack trace shows it is trying to 'reconnect'. This may be because
> the connection was not actually opened in the first place(?). In any
> case this would happen if the connection was established and was then
> lost. If the broker(s) specified never become available then the
> reconnect will never succeed. You can limit the time or number of
> retries with some combination of the following:
>
> - reconnect_timeout: seconds (give up and report failure after specified
> time)
> - reconnect_limit: n (give up and report failure after specified number
> of attempts)
> - reconnect_interval_min: seconds (initial delay between failed
> reconnection attempts)
> - reconnect_interval_max: seconds (maximum delay between failed
> reconnection attempts)
> - reconnect_interval: shorthand for setting the same
> reconnect_interval_min/max
>
>
>
>
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