nsivabalan commented on a change in pull request #3820:
URL: https://github.com/apache/hudi/pull/3820#discussion_r733013939
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File path:
hudi-client/hudi-client-common/src/main/java/org/apache/hudi/config/HoodieWriteConfig.java
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@@ -368,11 +372,13 @@
+ "OPTIMISTIC_CONCURRENCY_CONTROL: Multiple writers can operate on
the table and exactly one of them succeed "
+ "if a conflict (writes affect the same file group) is detected.");
- public static final ConfigProperty<String> WRITE_META_KEY_PREFIXES =
ConfigProperty
- .key("hoodie.write.meta.key.prefixes")
- .defaultValue("")
- .withDocumentation("Comma separated metadata key prefixes to override
from latest commit "
- + "during overlapping commits via multi writing");
+ public static final ConfigProperty<Boolean>
WRITE_CONCURRENCY_MERGE_DELTASTREAMER_STATE = ConfigProperty
+ .key("hoodie.write.concurrency.merge.deltastreamer.state")
+ .defaultValue(false)
+ .withDocumentation("If enabled, this writer will merge Deltastreamer
state "
+ + "from the previous checkpoint in order to allow both
realtime "
+ + "and batch writers to ingest into a single table. "
+ + "This should not be enabled on Deltastreamer writers.");
Review comment:
do you think we can add in a validation withiin Deltastreamer code base
that this config is not enabled. would be good to tighten it and not leave it
to end user.
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