rdhabalia opened a new pull request, #23068:
URL: https://github.com/apache/pulsar/pull/23068
### Motivation
Currently if Pulsar-client fails to decrypt batch-message and if
CrypotFailureAction is configured as `Discard` then after a while consumer at
client side runs out of permit even though internal queue has space so,
consumer gets stuck and broker is not dispatching messages to consumer though
consumer is suppose to receive more messages. It happens because Client lib
doesn't increase permits while discarding batch messages accordingly number of
messages in the batch-message but instead it only increrements permit by one
which causes consumer to go out of available permit and stops consuming more
messages.
```
[pulsar-client-io-1-1] WARN org.apache.pulsar.client.impl.ConsumerImpl -
[persistent://t1/c1/n1/t1][test][746e5][1001074382-11645--1] Discarding message
since decryption failed and config is set to discard
:
"consumers" : [ {
"msgRateOut" : 0,
"msgThroughputOut" : 0,
"availablePermits" : -50,
```
### Modifications
Fix client consumer to handle batch message when client fails to decrypt
message and send new available permits according to number of messages in that
batch to avoid stuck consumer for the user.
### Verifying this change
- [ ] Make sure that the change passes the CI checks.
*(Please pick either of the following options)*
This change is a trivial rework / code cleanup without any test coverage.
*(or)*
This change is already covered by existing tests, such as *(please describe
tests)*.
*(or)*
This change added tests and can be verified as follows:
*(example:)*
- *Added integration tests for end-to-end deployment with large payloads
(10MB)*
- *Extended integration test for recovery after broker failure*
### Does this pull request potentially affect one of the following parts:
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*If the box was checked, please highlight the changes*
- [ ] Dependencies (add or upgrade a dependency)
- [ ] The public API
- [ ] The schema
- [ ] The default values of configurations
- [ ] The threading model
- [ ] The binary protocol
- [ ] The REST endpoints
- [ ] The admin CLI options
- [ ] The metrics
- [ ] Anything that affects deployment
### Documentation
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- [ ] `doc-required` <!-- Your PR changes impact docs and you will update
later -->
- [ ] `doc-not-needed` <!-- Your PR changes do not impact docs -->
- [ ] `doc-complete` <!-- Docs have been already added -->
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