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A clear and concise description of the problem.
Recently, it was discovered that when using hive, presto regularly creates a large number of hive Delegation tokens, and hive's Delegation tokens are stored in zk. This causes zk to generate a large number of znodes, which puts a lot of pressure on zk. Why is this happening? Can the generation of so many Delegation tokens be controlled?
HMS log:
zk monitor:
Was this working before or is this a first try?
If this worked before, then what has changed that recently?
Provide table DDLs and EXPLAIN ANALYZE for your Presto queries.
Describe the problem you faced
Recently, it was discovered that when using hive, presto regularly creates a large number of hive Delegation tokens, and hive's Delegation tokens are stored in zk. This causes zk to generate a large number of znodes, which puts a lot of pressure on zk. Why is this happening? Can the generation of so many Delegation tokens be controlled?
HMS log:
EXPLAIN ANALYZE
for your Presto queries.Environment Description
0.282
HDFS
hive
On-prem
Steps To Reproduce
Steps to reproduce the behavior:
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Expected behavior
Additional context
Stacktrace
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