Files
scylladb/tests
Tomasz Grabiec 9975135110 row_cache: Make sure reader makes forward progress after each fill_buffer()
If reader's buffer is small enough, or preemption happens often
enough, fill_buffer() may not make enough progress to advance
_lower_bound. If also iteartors are constantly invalidated across
fill_buffer() calls, the reader will not be able to make progress.

See row_cache_test.cc::test_reading_progress_with_small_buffer_and_invalidation()
for an examplary scenario.

Also reproduced in debug-mode row_cache_test.cc::test_concurrent_reads_and_eviction

Message-Id: <1528283957-16696-1-git-send-email-tgrabiec@scylladb.com>
2018-06-06 16:01:52 +03:00
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2018-04-29 11:03:21 +03:00
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2018-04-29 11:03:21 +03:00
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