Robinhood-kafka-python

Patch Improvements
* Fix gc error log: avoid AttributeError in _unregister_cleanup (dpkp PR 747)
* Wakeup socket optimizations (dpkp PR 740)
* Assert will be disabled by "python -O" (tyronecai PR 736)
* Randomize order of topics/partitions processed by fetcher to improve balance (dpkp PR 732)
* Allow client.check_version timeout to be set in Producer and Consumer constructors (eastlondoner PR 647)

Bugfixes
* Clarify timeout unit in KafkaProducer close and flush (ms7s PR 734)
* Avoid busy poll during metadata refresh failure with retry_backoff_ms (dpkp PR 733)
* Check_version should scan nodes until version found or timeout (dpkp PR 731)
* Fix bug which could cause least_loaded_node to always return the same unavailable node (dpkp PR 730)
* Fix producer garbage collection with weakref in atexit handler (dpkp PR 728)
* Close client selector to fix fd leak (msmith PR 729)
* Tweak spelling mistake in error const (steve8918 PR 719)
* Rearrange connection tests to separate legacy KafkaConnection

Bugfixes
* Fix regression in MessageSet decoding wrt PartialMessages (716)
* Catch response decode errors and log details (715)
* Fix Legacy support url (712 - JonasGroeger)
* Update sphinx docs re 0.10 broker support

This release officially adds support for Kafka 0.10
* Add protocol support for ApiVersionRequest (dpkp PR 678)
* KAFKA-3025: Message v1 -- add timetamp and relative offsets (dpkp PR 693)
* Use Fetch/Produce API v2 for brokers >= 0.10 (uses message format v1) (dpkp PR 694)
* Use standard LZ4 framing for v1 messages / kafka 0.10 (dpkp PR 695)

Consumers
* Update SimpleConsumer / legacy protocol to handle compressed messages (paulcavallaro PR 684)

Producers
* KAFKA-3388: Fix expiration of batches sitting in the accumulator (dpkp PR 699)
* KAFKA-3197: when max.in.flight.request.per.connection = 1, attempt to guarantee ordering (dpkp PR 698)
* Don't use soon-to-be-reserved keyword await as function name (FutureProduceResult) (dpkp PR 697)

Clients
* Fix socket leaks in KafkaClient (dpkp PR 696)

Documentation
<none>

Internals
* Support SSL CRL [requires python 2.7.9+ / 3.4+] (vincentbernat PR 683)
* Use original hostname for SSL checks (vincentbernat PR 682)
* Always pass encoded message bytes to MessageSet.encode()
* Raise ValueError on protocol encode/decode errors
* Supplement socket.gaierror exception in BrokerConnection.connect() (erikbeebe PR 687)
* BrokerConnection check_version: expect 0.9 to fail with CorrelationIdError
* Fix small bug in Sensor (zackdever PR 679)

quick bugfixes
* fix throttle_time_ms sensor handling (zackdever pr 667)
* improve handling of disconnected sockets (easypost pr 666 / dpkp)
* disable standard metadata refresh triggers during bootstrap (dpkp)
* more predictable future callback/errback exceptions (zackdever pr 670)
* avoid some exceptions in coordinator.__del__ (dpkp pr 668)

Consumers
* Avoid resending FetchRequests that are pending on internal queue
* Log debug messages when skipping fetched messages due to offset checks
* KAFKA-3013: Include topic-partition in exception for expired batches
* KAFKA-3318: clean up consumer logging and error messages
* Improve unknown coordinator error handling
* Improve auto-commit error handling when group_id is None
* Add paused() API (zackdever PR 602)
* Add default_offset_commit_callback to KafkaConsumer DEFAULT_CONFIGS

Producers
<none>

Clients
* Support SSL connections
* Use selectors module for non-blocking IO
* Refactor KafkaClient connection management
* Fix AttributeError in __del__
* SimpleClient: catch errors thrown by _get_leader_for_partition (zackdever PR 606)

Documentation
* Fix serializer/deserializer examples in README
* Update max.block.ms docstring
* Remove errant next(consumer) from consumer documentation
* Add producer.flush() to usage docs

Internals
* Add initial metrics implementation (zackdever PR 637)
* KAFKA-2136: support Fetch and Produce v1 (throttle_time_ms)
* Use version-indexed lists for request/response protocol structs (dpkp PR 630)
* Split kafka.common into kafka.structs and kafka.errors
* Handle partial socket send() (dpkp PR 611)
* Fix windows support (dpkp PR 603)
* IPv6 support (TimEvens PR 615; Roguelazer PR 642)