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https://issues.apache.org/jira/browse/BEAM-10249?focusedWorklogId=444794&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-444794
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ASF GitHub Bot logged work on BEAM-10249:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 12/Jun/20 10:06
Start Date: 12/Jun/20 10:06
Worklog Time Spent: 10m
Work Description: mxm opened a new pull request #11997:
URL: https://github.com/apache/beam/pull/11997
When new values are added to a bag state, the cache handler in the Python SDK
does not check whether the underlying state already has values present.
Although
the append operation will be sent to the backend, the cache itself will be
corrupted because it returns only the newly appended values for get
operations,
not the values present before the append operation.
This is a concern when restoring from a checkpoint but also when items are
evicted from the cache.
Post-Commit Tests Status (on master branch)
------------------------------------------------------------------------------------------------
Lang | SDK | Apex | Dataflow | Flink | Samza | Spark
--- | --- | --- | --- | --- | --- | ---
Go | [](https://builds.apache.org/job/beam_PostCommit_Go/lastCompletedBuild/)
| --- | --- | [](https://builds.apache.org/job/beam_PostCommit_Go_VR_Flink/lastCompletedBuild/)
| --- | [](https://builds.apache.org/job/beam_PostCommit_Go_VR_Spark/lastCompletedBuild/)
Java | [](https://builds.apache.org/job/beam_PostCommit_Java/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Apex/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Dataflow/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Dataflow_Java11/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Flink/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Flink_Java11/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Java_PVR_Flink_Batch/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Java_PVR_Flink_Streaming/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Samza/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Spark/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Java_PVR_Spark_Batch/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Java_ValidatesRunner_SparkStructuredStreaming/lastCompletedBuild/)
Python | [](https://builds.apache.org/job/beam_PostCommit_Python2/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Python35/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Python36/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Python37/lastCompletedBuild/)
| --- | [](https://builds.apache.org/job/beam_PostCommit_Py_VR_Dataflow/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Py_VR_Dataflow_V2/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Py_ValCont/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PreCommit_Python2_PVR_Flink_Cron/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PostCommit_Python35_VR_Flink/lastCompletedBuild/)
| --- | [](https://builds.apache.org/job/beam_PostCommit_Python_VR_Spark/lastCompletedBuild/)
XLang | --- | --- | --- | [](https://builds.apache.org/job/beam_PostCommit_XVR_Flink/lastCompletedBuild/)
| --- | --- | [](https://builds.apache.org/job/beam_PostCommit_XVR_Spark/lastCompletedBuild/)
Pre-Commit Tests Status (on master branch)
------------------------------------------------------------------------------------------------
--- |Java | Python | Go | Website
--- | --- | --- | --- | ---
Non-portable | [](https://builds.apache.org/job/beam_PreCommit_Java_Cron/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PreCommit_Python_Cron/lastCompletedBuild/)<br>[](https://builds.apache.org/job/beam_PreCommit_PythonLint_Cron/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PreCommit_Go_Cron/lastCompletedBuild/)
| [](https://builds.apache.org/job/beam_PreCommit_Website_Cron/lastCompletedBuild/)
Portable | --- | [](https://builds.apache.org/job/beam_PreCommit_Portable_Python_Cron/lastCompletedBuild/)
| --- | ---
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Issue Time Tracking
-------------------
Worklog Id: (was: 444794)
Remaining Estimate: 0h
Time Spent: 10m
> State handler does not retrieve initial values when appending
> -------------------------------------------------------------
>
> Key: BEAM-10249
> URL: https://issues.apache.org/jira/browse/BEAM-10249
> Project: Beam
> Issue Type: Bug
> Components: sdk-py-harness
> Reporter: Maximilian Michels
> Assignee: Maximilian Michels
> Priority: P2
> Time Spent: 10m
> Remaining Estimate: 0h
>
> When new values are added to a bag state, the cache handler in the Python SDK
> does not check whether the underlying state already has values present.
> Although the append operation will be sent to the backend, the cache itself
> will be corrupted because it returns only the newly appended values for get
> operations, not the values present before the append operation.
> This is a concern when restoring from a checkpoint but also when items are
> evicted from the cache.
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