[
https://issues.apache.org/jira/browse/BEAM-12931?focusedWorklogId=658638&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-658638
]
ASF GitHub Bot logged work on BEAM-12931:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 30/Sep/21 22:32
Start Date: 30/Sep/21 22:32
Worklog Time Spent: 10m
Work Description: laraschmidt commented on a change in pull request
#15540:
URL: https://github.com/apache/beam/pull/15540#discussion_r719810671
##########
File path:
runners/core-java/src/main/java/org/apache/beam/runners/core/SimpleDoFnRunner.java
##########
@@ -1190,13 +1190,20 @@ public Timer withOutputTimestamp(Instant
outputTimestamp) {
* </ul>
*/
private void setAndVerifyOutputTimestamp() {
-
if (outputTimestamp != null) {
- checkArgument(
- !outputTimestamp.isBefore(elementInputTimestamp),
- "output timestamp %s should be after input message timestamp or
output timestamp of firing timers %s",
- outputTimestamp,
- elementInputTimestamp);
+ // The documentation of getAllowedTimestampSkew explicitly permits
Long.MAX_VALUE to be used
+ // for infinite skew. Defend against underflow in that case for
timestamps before the epoch.
+ if (fn.getAllowedTimestampSkew().getMillis() != Long.MAX_VALUE
Review comment:
Sounds good.
##########
File path:
runners/core-java/src/main/java/org/apache/beam/runners/core/SimpleDoFnRunner.java
##########
@@ -1190,13 +1190,20 @@ public Timer withOutputTimestamp(Instant
outputTimestamp) {
* </ul>
*/
private void setAndVerifyOutputTimestamp() {
-
if (outputTimestamp != null) {
- checkArgument(
- !outputTimestamp.isBefore(elementInputTimestamp),
- "output timestamp %s should be after input message timestamp or
output timestamp of firing timers %s",
- outputTimestamp,
- elementInputTimestamp);
+ // The documentation of getAllowedTimestampSkew explicitly permits
Long.MAX_VALUE to be used
+ // for infinite skew. Defend against underflow in that case for
timestamps before the epoch.
+ if (fn.getAllowedTimestampSkew().getMillis() != Long.MAX_VALUE
Review comment:
Sounds good. Done.
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Issue Time Tracking
-------------------
Worklog Id: (was: 658638)
Time Spent: 1h 10m (was: 1h)
> Timer.setOutputTimestamp doesn't take into account for
> DoFn#getAllowedTimestampSkew()
> -------------------------------------------------------------------------------------
>
> Key: BEAM-12931
> URL: https://issues.apache.org/jira/browse/BEAM-12931
> Project: Beam
> Issue Type: Bug
> Components: beam-model
> Reporter: Lara Schmidt
> Assignee: Lara Schmidt
> Priority: P2
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> A DoFn may emit elements with a timestamp up to
> DoFn#getAllowedTimestampSkew() before the current element's timestamp.
> However getAllowedTimestampSkew is not properly accounted for in looking at
> the output timestamp of a timer.
> Context:
> [https://lists.apache.org/thread.html/r7554658114ddde86c5d82e1c39fe7e1ef587fe926b8e406d1130d501%40%3Cdev.beam.apache.org%3E]
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