[
https://issues.apache.org/jira/browse/BEAM-8137?focusedWorklogId=608754&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-608754
]
ASF GitHub Bot logged work on BEAM-8137:
----------------------------------------
Author: ASF GitHub Bot
Created on: 08/Jun/21 21:13
Start Date: 08/Jun/21 21:13
Worklog Time Spent: 10m
Work Description: kw2542 commented on a change in pull request #14942:
URL: https://github.com/apache/beam/pull/14942#discussion_r647797149
##########
File path:
runners/portability/java/src/main/java/org/apache/beam/runners/portability/ExternalWorkerService.java
##########
@@ -90,10 +97,59 @@ public void stopWorker(
public void close() {}
public GrpcFnServer<ExternalWorkerService> start() throws Exception {
- GrpcFnServer<ExternalWorkerService> server =
- GrpcFnServer.allocatePortAndCreateFor(this, serverFactory);
+ final String externalServiceAddress =
+
Environments.getExternalServiceAddress(options.as(PortablePipelineOptions.class));
+ GrpcFnServer<ExternalWorkerService> server;
+ if (externalServiceAddress.isEmpty()) {
+ server = GrpcFnServer.allocatePortAndCreateFor(this, serverFactory);
+ } else {
+ server =
+ GrpcFnServer.create(
+ this,
+
Endpoints.ApiServiceDescriptor.newBuilder().setUrl(externalServiceAddress).build(),
+ serverFactory);
+ }
LOG.debug(
"Listening for worker start requests at {}.",
server.getApiServiceDescriptor().getUrl());
return server;
}
+
+ /**
+ * Worker pool entry point.
+ *
+ * <p>The worker pool exposes an RPC service that is used with EXTERNAL
environment to start and
+ * stop the SDK workers.
+ *
+ * <p>The worker pool uses threads for parallelism;
+ *
+ * <p>This entry point is used by the Java SDK container in worker pool mode
and expects the
+ * following environment variables:
+ *
+ * <ul>
+ * <li>PIPELINE_OPTIONS: A serialized form of {@link PipelineOptions}. It
needs to be known
+ * up-front and matches the running job. See {@link PipelineOptions}
for further details.
+ * </ul>
+ */
+ public static void main(String[] args) throws Exception {
+ main(System::getenv);
+ }
+
+ public static void main(Function<String, String> environmentVarGetter)
throws Exception {
+ LOG.info("Starting external worker service");
+ LOG.info("Pipeline options {}",
environmentVarGetter.apply(PIPELINE_OPTIONS_ENV_VAR));
+ PipelineOptions options =
+
PipelineOptionsTranslation.fromJson(environmentVarGetter.apply(PIPELINE_OPTIONS_ENV_VAR));
+
+ try (GrpcFnServer<ExternalWorkerService> server = new
ExternalWorkerService(options).start()) {
+ LOG.info(
+ "External worker service started at address: {}",
+ server.getApiServiceDescriptor().getUrl());
+ // Wait to keep ExternalWorkerService running
+ Sleeper.DEFAULT.sleep(Long.MAX_VALUE);
+ } catch (Exception e) {
+ LOG.error("Error running worker service:" + e);
Review comment:
Updated
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Issue Time Tracking
-------------------
Worklog Id: (was: 608754)
Time Spent: 4h 20m (was: 4h 10m)
> Worker pool option for Java SDK container
> -----------------------------------------
>
> Key: BEAM-8137
> URL: https://issues.apache.org/jira/browse/BEAM-8137
> Project: Beam
> Issue Type: Improvement
> Components: sdk-java-harness
> Reporter: Thomas Weise
> Priority: P3
> Labels: Clarified
> Time Spent: 4h 20m
> Remaining Estimate: 0h
>
> The worker pool option was added to the Python SDK container in BEAM-7980.
> Support in the Java SDK container is simpler since it can rely on threading
> and it should be added for feature parity.
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