Lei Yang created HDFS-17341:
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Summary: Support dedicated user queues in Namenode FairCallQueue
Key: HDFS-17341
URL: https://issues.apache.org/jira/browse/HDFS-17341
Project: Hadoop HDFS
Issue Type: Improvement
Components: namenode
Reporter: Lei Yang
Some service users today in namenode like ETL, metrics collection accounts for
many traffic and shouldn't be throttled the same way as other individual users
in FCQ.
The idea is to allocate dedicated rpc queues for those service users and
allocate processing weight for those users.
New configs:
{code:java}
"faircallqueue.reserved.users"; // list of service users that are assigned to
dedicated queue
"faircallqueue.reserved.users.max"; // max number of service users allowed
"faircallqueue.reserved.users.capacities"; // custom queue capacities for each
service user
"faircallqueue.multiplexer.reserved.weights"; // processing weights for each
dedicated queue{code}
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