[KAFKA-419] Updated PHP client library to support kafka 0.7+

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 0.7, 0.8.0
• Component/s: clients
• Labels: php phpunit
• Environment: N/A
• Assignee: Unassigned
• Reporter: Lorenzo Alberton
• Created: 26/Jul/12 16:20
• Updated: 04/Apr/13 20:42
• Resolved: 04/Apr/13 20:42

Description

I updated the PHP client library to fully work with the kafka code in trunk, with the following improvements:

• added support for GZIP compression (both in the producer and the consumer);
• implemented stream-based iteration of messages (rather than loading the entire response in memory);
• added base Kafka_Exception class (extending RuntimeException) and some child classes to catch specific errors;
• added validation and error checking in several parts of the code (like CRC validation of messages, stream connection/EOF checks, response code verification);
• added example producer for compressed messages.

The code is fully tested (vast improvements to the existing test suite are provided with the patch), and already incorporates a proper fix for KAFKA-319 (which can be rejected).
The API hasn't changed and is 100% backwards compatible.

Issue Links

• supercedes: KAFKA-319 compression support added to php client does not pass unit tests