blerer commented on a change in pull request #835:
URL: https://github.com/apache/cassandra/pull/835#discussion_r530997483
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File path: src/java/org/apache/cassandra/db/transform/BaseIterator.java
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@@ -83,14 +87,31 @@
public final void close()
{
+ // If close has already been called we want to ignore other calls
+ if (closed)
Review comment:
If the iterator has been registered in multiples `try-with-resources`
(the root of the problem we are trying to solve) and a bad implementation of
`runOnClose` fire an Exception, the next `try-with-resources` will hit the same
problem and will hide the original one. No matter how the execution of `close`
end up, I do not think that there are any scenarios in which you want to retry
closing the iterator. Which is why the patch toggle `closed` as early as
possible.
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