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Status
Current state: discussing
Discussion thread: thread
JIRA: TBD
Please keep the discussion on the mailing list rather than commenting on the wiki (wiki discussions get unwieldy fast).
Motivation
KIP-266 have replaced the (long, TimeUnit) by Duration for KafkaConsumer. For consistency, we should do the same APIs migration for KafkaProducer.
Public Interfaces
KafkaProducer
+ * + * @deprecated Since 2.1. Use {@link #close(Duration)} or {@link #close()}. */ + @Deprecated @Override public void close(long timeout, TimeUnit timeUnit) { close(timeout, timeUnit, false); } + /** + * This method waits up to <code>timeout</code> for the producer to complete the sending of all incomplete requests. + * <p> + * If the producer is unable to complete all requests before the timeout expires, this method will fail + * any unsent and unacknowledged records immediately. + * <p> + * If invoked from within a {@link Callback} this method will not block and will be equivalent to + * <code>close(Duration.ofMillis(0))</code>. This is done since no further sending will happen while + * blocking the I/O thread of the producer. + * + * @param timeout The maximum time to wait for producer to complete any pending requests. The value should be + * non-negative. Specifying a timeout of zero means do not wait for pending send requests to complete. + * @throws InterruptException If the thread is interrupted while blocked + * @throws IllegalArgumentException If the <code>timeout</code> is negative. + */ + @Override + public void close(Duration timeout) { + close(timeout.toMillis(), TimeUnit.MILLISECONDS, false); + }
Producer
+ @Deprecated void close(long timeout, TimeUnit unit); + /** + * @see KafkaProducer#close(Duration) + */ + void close(Duration timeout);
KafkaAdminClient
@Override - public void close(long duration, TimeUnit unit) { - long waitTimeMs = unit.toMillis(duration); + public void close(Duration timeout) { + long waitTimeMs = timeout.toMillis();
AdminClient
+ * @deprecated Since 2.1. Use {@link #close(Duration)} or {@link #close()}. */ - public abstract void close(long duration, TimeUnit unit); + @Deprecated + public void close(long duration, TimeUnit unit) { + close(Duration.ofMillis(unit.toMillis(duration))); + } + + /** + * Close the AdminClient and release all associated resources. + * + * The close operation has a grace period during which current operations will be allowed to + * complete, specified by the given duration and time unit. + * New operations will not be accepted during the grace period. Once the grace period is over, + * all operations that have not yet been completed will be aborted with a TimeoutException. + * + * @param timeout The time to use for the wait time. + */ + public abstract void close(Duration timeout);
Proposed Changes
New Public methods are proposed. see Public Interfaces
Compatibility, Deprecation, and Migration Plan
No compatibility issues foreseen.
Rejected Alternatives
If there are alternative ways of accomplishing the same thing, what were they? The purpose of this section is to motivate why the design is the way it is and not some other way.