Details
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Bug
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Status: Open
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Major
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Resolution: Unresolved
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None
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None
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Description
We've experienced a number of issues lately where "ruok" requests would take upwards of 10 seconds to return, and ZooKeeper instances were extremely sluggish. The sluggish instance requires a restart to make it responsive again.
I believe the issue is connections are very imbalanced, leading to certain instances having many thousands of connections, while other instances are largely idle.
A potential solution is periodically disconnecting/reconnecting to balance connections over time; this seems fine because sessions should not be affected, and therefore ephemaral nodes and watches should not be affected.
