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https://issues.apache.org/jira/browse/HUDI-2818?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Raymond Xu closed HUDI-2818.
----------------------------
> 2to3 upgrade only checks hoodie.table.keygenerator.class
> --------------------------------------------------------
>
> Key: HUDI-2818
> URL: https://issues.apache.org/jira/browse/HUDI-2818
> Project: Apache Hudi
> Issue Type: Bug
> Reporter: Raymond Xu
> Assignee: Raymond Xu
> Priority: Blocker
> Labels: pull-request-available
> Fix For: 0.10.0
>
>
> {noformat}
> 21/11/22 05:26:10 INFO UpgradeDowngrade: Attempting to move table from
> version ONE to THREE
> 21/11/22 05:26:10 ERROR HoodieDeltaStreamer: Shutting down delta-sync due to
> exception
> java.lang.NullPointerException
> at java.util.Hashtable.put(Hashtable.java:460)
> at java.util.Properties.setProperty(Properties.java:166)
> at org.apache.hudi.common.config.HoodieConfig.setValue(HoodieConfig.java:58)
> at
> org.apache.hudi.table.upgrade.UpgradeDowngrade.run(UpgradeDowngrade.java:132){noformat}
>
> 2to3 looks for config
> {noformat}
> hoodie.table.keygenerator.class{noformat}
> and will result in putting null value to hashtable if user only sets
> {noformat}
> hoodie.datasource.write.keygenerator.class{noformat}
>
> solution:
> 2to3 should check both props to set. And use {{hashtable}} in
> upgrade/downgrade handlers instead of hashmap. in case of getting null value,
> hashtable will error out earlier.
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