[jira] [Created] (KYLIN-2509) Unsafe iteration over booking in MemoryBudgetController#tryFreeUp

["Ted Yu (JIRA)" <ji...@apache.org>]

Ted Yu created KYLIN-2509:
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             Summary: Unsafe iteration over booking in MemoryBudgetController#tryFreeUp
                 Key: KYLIN-2509
                 URL: https://issues.apache.org/jira/browse/KYLIN-2509
             Project: Kylin
          Issue Type: Bug
            Reporter: Ted Yu
            Priority: Minor


{code}
        for (ConsumerEntry entry : booking.values()) {
            int mb = entry.consumer.freeUp(gap);
            if (mb > 0) {
                lock.lock();
                try {
                    updateBookingWithDelta(entry.consumer, -mb);
{code}
In updateBookingWithDelta, booking may be modified, leading to concurrent modification.



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