[
https://issues.apache.org/jira/browse/BEAM-3327?focusedWorklogId=93372&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-93372
]
ASF GitHub Bot logged work on BEAM-3327:
----------------------------------------
Author: ASF GitHub Bot
Created on: 20/Apr/18 18:56
Start Date: 20/Apr/18 18:56
Worklog Time Spent: 10m
Work Description: jkff commented on a change in pull request #5189:
[BEAM-3327] Basic Docker environment factory
URL: https://github.com/apache/beam/pull/5189#discussion_r183141382
##########
File path:
runners/java-fn-execution/src/main/java/org/apache/beam/runners/fnexecution/control/ControlClientPool.java
##########
@@ -17,16 +17,31 @@
*/
package org.apache.beam.runners.fnexecution.control;
-import org.apache.beam.sdk.fn.function.ThrowingConsumer;
-import org.apache.beam.sdk.util.ThrowingSupplier;
+/**
+ * A pool of control clients that brokers incoming SDK harness connections (in
the form of {@link
+ * InstructionRequestHandler InstructionRequestHandlers}.
+ *
+ * <p>Incoming instruction handlers usually come from the control plane gRPC
service. Typical use:
+ *
+ * <pre>
+ * // Within owner of the pool, who may or may not own the control plane
server as well
+ * ControlClientPool pool = ...
+ * FnApiControlClientPoolService service =
+ * FnApiControlClientPoolService.offeringClientsToSink(pool.getSink(),
headerAccessor)
+ * // Incoming gRPC control connections will now be added to the client pool.
+ *
+ * // Within code that interacts with the instruction handler. The get call
blocks until an
+ * // incoming client is available:
+ * ControlClientSource clientSource = ... InstructionRequestHandler
+ * instructionHandler = clientSource.get("worker-id");
+ * </pre>
+ */
+public interface ControlClientPool {
-/** Control client pool that exposes a source and sink of control clients. */
-public interface ControlClientPool<T extends InstructionRequestHandler> {
+ /** Sink for control clients. */
+ ControlClientSink getSink();
Review comment:
I think it used to be this way (Function) before, but I like the concrete
interfaces more.
Also, I think terminology "sink pool" and "source pool" would not reflect
what this does - this is not a pool of sources/sinks, it rather is a sink into
the pool (a handle for adding to the pool) or a source from the pool (a handle
for retrieving from the pool). I'd be in favor of keeping this part as-is.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
Issue Time Tracking
-------------------
Worklog Id: (was: 93372)
Time Spent: 13h (was: 12h 50m)
> Add abstractions to manage Environment Instance lifecycles.
> -----------------------------------------------------------
>
> Key: BEAM-3327
> URL: https://issues.apache.org/jira/browse/BEAM-3327
> Project: Beam
> Issue Type: New Feature
> Components: runner-core
> Reporter: Thomas Groh
> Assignee: Ben Sidhom
> Priority: Major
> Labels: portability
> Time Spent: 13h
> Remaining Estimate: 0h
>
> This permits remote stage execution for arbitrary environments
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
