Github user chtyim commented on a diff in the pull request: https://github.com/apache/incubator-tephra/pull/23#discussion_r91465579 --- Diff: tephra-core/src/main/java/org/apache/tephra/TransactionManager.java --- @@ -348,27 +348,30 @@ private void cleanupTimedOutTransactions() { } long currentTime = System.currentTimeMillis(); - List<Long> timedOut = Lists.newArrayList(); + Map<Long, InProgressType> timedOut = Maps.newHashMap(); --- End diff -- How about the "write lock" comment? Currently we are only holding the read lock and modifying the invalid list.
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