Hey zookeeper gurus -

We recently had a zookeeper outage when one ZK server was started with
a low limit after upgrading to 3.3.0. Several days later the outage
occurred when that node reached its file descriptor limit and clients
started having major issues.

Are there any circumstances when a ZK server will get blacklisted from
the ensemble? Something similar to how tasktrackers are blacklisted
when too many tasks fail.


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