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Posted to dev@pulsar.apache.org by GitBox <gi...@apache.org> on 2021/02/22 17:24:08 UTC
[GitHub] [pulsar-client-node] iamrmin opened a new issue #141: Event listener if client disconnect or connection interruption
iamrmin opened a new issue #141:
URL: https://github.com/apache/pulsar-client-node/issues/141
It would be great to have a callback at Client level that trigger if connection break in-between.
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[GitHub] [pulsar-client-node] massakam edited a comment on issue #141: Event listener if client disconnect or connection interruption
Posted by GitBox <gi...@apache.org>.
massakam edited a comment on issue #141:
URL: https://github.com/apache/pulsar-client-node/issues/141#issuecomment-786417959
@iamrmin On the producer side, we should be able to notice that the connection has been lost because message sending times out (the duration can be changed with the `sendTimeoutMs` property) and an exception is thrown. On the consumer side, there is currently no way to notice that the connection has been lost except by looking at the error log.
The Node.js client is a wrapper of Pulsar C++ client and the C++ client doesn't have such feature. So it is currently difficult to implement such a callback...
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[GitHub] [pulsar-client-node] massakam commented on issue #141: Event listener if client disconnect or connection interruption
Posted by GitBox <gi...@apache.org>.
massakam commented on issue #141:
URL: https://github.com/apache/pulsar-client-node/issues/141#issuecomment-785540884
@iamrmin If the connection is disconnected from the server side, the client will automatically reconnect and the application should not need to detect it. Could you tell me why you need such a callback?
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[GitHub] [pulsar-client-node] iamrmin commented on issue #141: Event listener if client disconnect or connection interruption
Posted by GitBox <gi...@apache.org>.
iamrmin commented on issue #141:
URL: https://github.com/apache/pulsar-client-node/issues/141#issuecomment-785629877
@massakam ok but what if it takes hours and days to reconnect. Though I am not sure what is a timeout my concern here is healthcheck. It somehow should be know that pulsar is down and i am looking for any kind of callback.
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[GitHub] [pulsar-client-node] iamrmin commented on issue #141: Event listener if client disconnect or connection interruption
Posted by GitBox <gi...@apache.org>.
iamrmin commented on issue #141:
URL: https://github.com/apache/pulsar-client-node/issues/141#issuecomment-786419050
@massakam I see. Thank you :)
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[GitHub] [pulsar-client-node] massakam commented on issue #141: Event listener if client disconnect or connection interruption
Posted by GitBox <gi...@apache.org>.
massakam commented on issue #141:
URL: https://github.com/apache/pulsar-client-node/issues/141#issuecomment-786417959
@iamrmin On the producer side, we can notice that the connection has been lost because message sending times out (the duration can be changed with the `sendTimeoutMs` property) and an exception is thrown. On the consumer side, there is currently no way to notice that the connection has been lost except by looking at the error log.
The Node.js client is a wrapper of Pulsar C++ client and the C++ client doesn't have such feature. So it is currently difficult to implement such a callback...
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