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https://issues.apache.org/jira/browse/BEAM-9856?focusedWorklogId=430441&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-430441
]
ASF GitHub Bot logged work on BEAM-9856:
----------------------------------------
Author: ASF GitHub Bot
Created on: 04/May/20 22:19
Start Date: 04/May/20 22:19
Worklog Time Spent: 10m
Work Description: jaketf commented on pull request #11596:
URL: https://github.com/apache/beam/pull/11596#issuecomment-623737955
> The NPE is caused by `OffsetRangeTracker.lastAttemptedOffset` being
unboxed in `OffsetRangeTracker::checkDone`
[here](https://github.com/apache/beam/blob/0291976d6029b4cf4d72caa03bd3836900fb6328/sdks/java/core/src/main/java/org/apache/beam/sdk/transforms/splittabledofn/OffsetRangeTracker.java#L98).
>
>
[all](https://github.com/apache/beam/blob/0291976d6029b4cf4d72caa03bd3836900fb6328/sdks/java/core/src/main/java/org/apache/beam/sdk/transforms/splittabledofn/OffsetRangeTracker.java#L53)
[other](https://github.com/apache/beam/blob/0291976d6029b4cf4d72caa03bd3836900fb6328/sdks/java/core/src/main/java/org/apache/beam/sdk/transforms/splittabledofn/OffsetRangeTracker.java#L77)
[uses](https://github.com/apache/beam/blob/0291976d6029b4cf4d72caa03bd3836900fb6328/sdks/java/core/src/main/java/org/apache/beam/sdk/transforms/splittabledofn/OffsetRangeTracker.java#L119)
check that `lastAttemptedOffset` is not null.
>
> I'm not sure if this was intentional in the implementation of
OffsetRangeTracker.
@chamikaramj pablo said you might know about this.
should check done have some conditional on `lastAttemptedOffset != null`
e.g.
```java
@Override
public void checkDone() throws IllegalStateException {
if (range.getFrom() == range.getTo()) {
return;
}
if (lastAttemptedOffset != null) {
checkState(
lastAttemptedOffset >= range.getTo() - 1,
"Last attempted offset was %s in range %s, claiming work in [%s,
%s) was not attempted",
lastAttemptedOffset,
range,
lastAttemptedOffset + 1,
range.getTo());
}
}
```
I'm not really familiar with what checkDone should do in the case that
lastAttemptedOffset was null.
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Issue Time Tracking
-------------------
Worklog Id: (was: 430441)
Time Spent: 1h (was: 50m)
> HL7v2IO.ListHL7v2Messages should be refactored to support more parallelization
> ------------------------------------------------------------------------------
>
> Key: BEAM-9856
> URL: https://issues.apache.org/jira/browse/BEAM-9856
> Project: Beam
> Issue Type: Improvement
> Components: io-java-gcp
> Reporter: Jacob Ferriero
> Assignee: Jacob Ferriero
> Priority: Minor
> Time Spent: 1h
> Remaining Estimate: 0h
>
> Currently the List Messages API paginates through in a single ProcessElement
> Call.
> However we could get a restriction based on createTime using Messages.List
> filter and orderby.
>
> This is inline with the future roadmap of HL7v2 bulk export API becomes
> available that should allow splitting on (e.g. create time dimension).
> Leveraging this bulk export might be a future optimization to explore.
>
> This could take one of two forms:
> 1. dyanmically splitable via splitable DoFn (sexy, beam idiomatic: make
> optimization the runner's problem, potentially unnecessarily complex for this
> use case )
> 2. static splitting on some time partition e.g. finding the earliest
> createTime and emitting a PCollection of 1 hour partitions and paginating
> through each hour of data w/ in the time frame that the store spans, in a
> separate ProcessElement. (easy to implement but will likely have hot keys /
> stragglers based on "busy hours")
>
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