nehsyc commented on a change in pull request #14164:
URL: https://github.com/apache/beam/pull/14164#discussion_r593525983
##########
File path: sdks/java/core/src/main/java/org/apache/beam/sdk/io/WriteFiles.java
##########
@@ -314,12 +349,16 @@ public void validate(PipelineOptions options) {
"Must use windowed writes when applying %s to an unbounded
PCollection",
WriteFiles.class.getSimpleName());
// The reason for this is https://issues.apache.org/jira/browse/BEAM-1438
- // and similar behavior in other runners.
- checkArgument(
- getComputeNumShards() != null || getNumShardsProvider() != null,
- "When applying %s to an unbounded PCollection, "
- + "must specify number of output shards explicitly",
- WriteFiles.class.getSimpleName());
+ // and similar behavior in other runners. Runners can choose to ignore
this check and perform
+ // runner determined sharding for unbounded data by overriding the option
Review comment:
Resolved.
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