Ali Anwar created TEPHRA-263:
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Summary: TTL is not strictly enforced, if there are long
transactions running
Key: TEPHRA-263
URL: https://issues.apache.org/jira/browse/TEPHRA-263
Project: Tephra
Issue Type: Bug
Reporter: Ali Anwar
Assignee: Poorna Chandra
The logic for filtering for TTL:
https://github.com/apache/incubator-tephra/blob/release/0.12.0-incubating/tephra-core/src/main/java/org/apache/tephra/util/TxUtils.java#L66
It is subtracting the TTL duration from the visibility upper bound, but it
should be subtracting from the current time or the current write pointer
instead. Otherwise, if the TTL is 1 hour, but the visibility upper bound is 22
hours ago (due to some MR that has been in progress for 22 hours), then the TTL
that is actually enforced will be 23 hours and older data will be filtered.
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