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ASF GitHub Bot updated HDFS-17341: ---------------------------------- Labels: pull-request-available (was: ) > 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 > Affects Versions: 2.10.0, 3.4.0 > Reporter: Lei Yang > Priority: Major > Labels: pull-request-available > > Some service users today in namenode like ETL, metrics collection, ad-hoc > users that are critical to run business critical job accounts for many > traffic in namenode and shouldn't be throttled the same way as other > individual users in FCQ. > There is feature in namenode to always prioritize some service users to not > subject to FCQ scheduling. (Those users are always p0) but it is not perfect > and it doesn't account for traffic surge from those users. > The idea is to allocate dedicated rpc queues for those service users with > bounded queue capacity and allocate processing weight for those users. If > queue is full, those users are expected to backoff and retry. > > 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} > -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org