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https://issues.apache.org/jira/browse/BEAM-7495?focusedWorklogId=262824&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-262824
]
ASF GitHub Bot logged work on BEAM-7495:
----------------------------------------
Author: ASF GitHub Bot
Created on: 19/Jun/19 07:11
Start Date: 19/Jun/19 07:11
Worklog Time Spent: 10m
Work Description: chamikaramj commented on pull request #8832:
[BEAM-7495] Add dynamic worker rebalancing to BigQuery Storage
URL: https://github.com/apache/beam/pull/8832#discussion_r295112893
##########
File path:
sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/bigquery/BigQueryStorageStreamSource.java
##########
@@ -215,23 +223,106 @@ public T getCurrent() throws NoSuchElementException {
}
@Override
- protected long getCurrentOffset() throws NoSuchElementException {
- return currentOffset;
- }
-
- @Override
- public void close() {
+ public synchronized void close() {
storageClient.close();
}
@Override
public synchronized BigQueryStorageStreamSource<T> getCurrentSource() {
- return (BigQueryStorageStreamSource<T>) super.getCurrentSource();
+ return source;
}
@Override
- public boolean allowsDynamicSplitting() {
- return false;
+ public BoundedSource<T> splitAtFraction(double fraction) {
+ Metrics.counter(BigQueryStorageStreamReader.class,
"split-at-fraction-calls").inc();
+ LOGGER.info(
Review comment:
Prob. should be a debug log.
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Issue Time Tracking
-------------------
Worklog Id: (was: 262824)
Time Spent: 2h 20m (was: 2h 10m)
Remaining Estimate: 501h 40m (was: 501h 50m)
> Add support for dynamic worker re-balancing when reading BigQuery data using
> Cloud Dataflow
> -------------------------------------------------------------------------------------------
>
> Key: BEAM-7495
> URL: https://issues.apache.org/jira/browse/BEAM-7495
> Project: Beam
> Issue Type: New Feature
> Components: io-java-gcp
> Reporter: Aryan Naraghi
> Assignee: Aryan Naraghi
> Priority: Major
> Original Estimate: 504h
> Time Spent: 2h 20m
> Remaining Estimate: 501h 40m
>
> Currently, the BigQuery connector for reading data using the BigQuery Storage
> API does not support any of the facilities on the source for Dataflow to
> split streams.
>
> On the server side, the BigQuery Storage API supports splitting streams at a
> fraction. By adding support to the connector, we enable Dataflow to split
> streams, which unlocks dynamic worker re-balancing.
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