Github user pnowojski commented on a diff in the pull request:
https://github.com/apache/flink/pull/5400#discussion_r165930338
--- Diff:
flink-core/src/main/java/org/apache/flink/configuration/TaskManagerOptions.java
---
@@ -184,6 +184,18 @@
key("taskmanager.network.detailed-metrics")
.defaultValue(false);
+ /**
+ * Config parameter defining whether to spill data for channels with
barrier or not in exactly-once
+ * mode based on credit-based flow control.
+ *
+ * @deprecated Will be removed for Flink 1.6 when the old code will be
dropped in favour of
+ * credit-based flow control.
+ */
+ @Deprecated
+ public static final ConfigOption<Boolean>
EXACTLY_ONCE_BLOCKING_DATA_ENABLED =
+ key("taskmanager.exactly-once.blocking.data.enabled")
+ .defaultValue(false);
--- End diff --
I think we would like to enable it by default and leave this config option
just as a safety net in case of bugs/problems.
btw, shouldn't this be tightly coupled with a credit based flow switch?
---
