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Added support for multiple connections to each broker - #336
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BewareMyPower
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Oct 31, 2023
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Co-authored-by: Zike Yang <zike@apache.org>
RobertIndie
approved these changes
Nov 1, 2023
BewareMyPower
approved these changes
Nov 1, 2023
BewareMyPower added a commit
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Nov 16, 2023
Fixesapache#346 ### Motivation apache#336 changes the key of the `ClientConnection` in `ConnectionPool`, while in `ClientConnection::close`, it still passes the old key (logical address) to `ConnectionPool::remove`, which results in the connection could never be removed and destroyed until being deleted as a stale connection. What's worse, if the key does not exist, the iterator returned by `std::map::find` will still be dereferenced, which might cause crash in some platforms. See https://github.com/apache/pulsar-client-cpp/blob/8d32fd254e294d1fabba73aed70115a434b341ef/lib/ConnectionPool.cc#L122-L123 ### Modifications - Avoid dereferencing the iterator if it's invalid in `ConnectionPool::remove`. - Store the key suffix in `ClientConnection` and pass the correct key to `ConnectionPool::remove` in `ClientConnection::close` - Add `ClientTest.testConnectionClose` to verify `ClientConnection::close` can remove itself from the pool and the connection will be destroyed eventually.
BewareMyPower added a commit
to BewareMyPower/pulsar-client-cpp
that referenced
this pull request
Nov 16, 2023
Fixesapache#346 ### Motivation apache#336 changes the key of the `ClientConnection` in `ConnectionPool`, while in `ClientConnection::close`, it still passes the old key (logical address) to `ConnectionPool::remove`, which results in the connection could never be removed and destroyed until being deleted as a stale connection. What's worse, if the key does not exist, the iterator returned by `std::map::find` will still be dereferenced, which might cause crash in some platforms. See https://github.com/apache/pulsar-client-cpp/blob/8d32fd254e294d1fabba73aed70115a434b341ef/lib/ConnectionPool.cc#L122-L123 ### Modifications - Avoid dereferencing the iterator if it's invalid in `ConnectionPool::remove`. - Store the key suffix in `ClientConnection` and pass the correct key to `ConnectionPool::remove` in `ClientConnection::close` - Add `ClientTest.testConnectionClose` to verify `ClientConnection::close` can remove itself from the pool and the connection will be destroyed eventually.
BewareMyPower added a commit
that referenced
this pull request
Nov 17, 2023
Fixes#346 ### Motivation #336 changes the key of the `ClientConnection` in `ConnectionPool`, while in `ClientConnection::close`, it still passes the old key (logical address) to `ConnectionPool::remove`, which results in the connection could never be removed and destroyed until being deleted as a stale connection. What's worse, if the key does not exist, the iterator returned by `std::map::find` will still be dereferenced, which might cause crash in some platforms. See https://github.com/apache/pulsar-client-cpp/blob/8d32fd254e294d1fabba73aed70115a434b341ef/lib/ConnectionPool.cc#L122-L123 ### Modifications - Avoid dereferencing the iterator if it's invalid in `ConnectionPool::remove`. - Store the key suffix in `ClientConnection` and pass the correct key to `ConnectionPool::remove` in `ClientConnection::close` - Add `ClientTest.testConnectionClose` to verify `ClientConnection::close` can remove itself from the pool and the connection will be destroyed eventually.
BewareMyPower added a commit
that referenced
this pull request
Nov 17, 2023
Fixes#346 ### Motivation #336 changes the key of the `ClientConnection` in `ConnectionPool`, while in `ClientConnection::close`, it still passes the old key (logical address) to `ConnectionPool::remove`, which results in the connection could never be removed and destroyed until being deleted as a stale connection. What's worse, if the key does not exist, the iterator returned by `std::map::find` will still be dereferenced, which might cause crash in some platforms. See https://github.com/apache/pulsar-client-cpp/blob/8d32fd254e294d1fabba73aed70115a434b341ef/lib/ConnectionPool.cc#L122-L123 ### Modifications - Avoid dereferencing the iterator if it's invalid in `ConnectionPool::remove`. - Store the key suffix in `ClientConnection` and pass the correct key to `ConnectionPool::remove` in `ClientConnection::close` - Add `ClientTest.testConnectionClose` to verify `ClientConnection::close` can remove itself from the pool and the connection will be destroyed eventually. (cherry picked from commit 6d47e94)
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Fixes#221
Motivation
Support having more than 1 connection to each broker.