Duarte Nunes 4b3562c3f5 db/view: Limit number of pending view updates ...

This patch adds a simple and naive mechanism to ensure a base replica
doesn't overwhelm a potentially overloaded view replica by sending too
many concurrent view updates. We add a semaphore to limit to 100 the
number of outstanding view updates. We limit globally per shard, and
not per destination view replica. We also limit statically.

Refs #2538

Signed-off-by: Duarte Nunes <duarte@scylladb.com>
Message-Id: <20180426134457.21290-2-duarte@scylladb.com>

2018-05-07 11:25:27 +03:00

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