yaooqinn commented on a change in pull request #1101: URL: https://github.com/apache/incubator-kyuubi/pull/1101#discussion_r708046219
########## File path: docs/security/proxyuser.md ########## @@ -0,0 +1,69 @@ +<!-- + - Licensed to the Apache Software Foundation (ASF) under one or more + - contributor license agreements. See the NOTICE file distributed with + - this work for additional information regarding copyright ownership. + - The ASF licenses this file to You under the Apache License, Version 2.0 + - (the "License"); you may not use this file except in compliance with + - the License. You may obtain a copy of the License at + - + - http://www.apache.org/licenses/LICENSE-2.0 + - + - Unless required by applicable law or agreed to in writing, software + - distributed under the License is distributed on an "AS IS" BASIS, + - WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + - See the License for the specific language governing permissions and + - limitations under the License. + --> + +<div align=center> + + + +</div> + +# Hadoop Credentials Manager + +Kyuubi engine is submitted with SparkSubmit argument `--proxy-user`. Its delegation tokens of hadoop +cluster services are obtained by the submitting user and can not be renewed by Kyuubi engine itself. +Thus, Kyuubi engine's lifetime is limited by the lifetime of delegation tokens. +To remove this limitation, Kyuubi renews delegation tokens at server side in Hadoop Credentials Manager. + +## Configurations + +### Cluster Services +Kyuubi currently supports renew delegation tokens of Hadoop filesystems and Hive metastore servers. + +#### Hadoop client configurations +Set `HADOOP_CONF_DIR` in `$KYUUBI_HOME/conf/kyuubi-env.sh` if it hasn't been set yet, e.g. + +```bash +$ echo "export HADOOP_CONF_DIR=/path/to/hadoop/conf" >> $KYUUBI_HOME/conf/kyuubi-env.sh +``` +Extra Hadoop filesystems can be specified in `$KYUUBI_HOME/conf/kyuubi-defaults.conf` +by `kyuubi.credentials.hadoopfs.uris` in comma separated list. + +#### Hive metastore configurations + +##### Via kyuubi-defaults.conf +Specify Hive metastore configurations In `$KYUUBI_HOME/conf/kyuubi-defaults.conf`. Hadoop Credentials +Manager will load the configurations when initialized. + +##### Via hive-site.xml +Place your copy of `hive-site.xml` into `$KYUUBI_HOME/conf`, Kyuubi will load this config file to +its classpath. + +This version of configuration has lower priority than those in `$KYUUBI_HOME/conf/kyuubi-defaults.conf`. + +##### Via JDBC Connection URL +Hive configurations specified in JDBC connection URL are ignored by Hadoop Credentials Manager as +Hadoop Credentials Manager is initialized when Kyuubi server starts. + +### Credentials Renewal + +Key | Default | Meaning | Type | Since +--- | --- | --- | --- | --- +kyuubi\.credentials<br>\.hadoopfs\.enabled|<div style='width: 65pt;word-wrap: break-word;white-space: normal'>true</div>|<div style='width: 170pt;word-wrap: break-word;white-space: normal'>Whether to renew Hadoop filesystem delegation tokens</div>|<div style='width: 30pt'>boolean</div>|<div style='width: 20pt'>1.4.0</div> +kyuubi\.credentials<br>\.hadoopfs\.uris|<div style='width: 65pt;word-wrap: break-word;white-space: normal'></div>|<div style='width: 170pt;word-wrap: break-word;white-space: normal'>Extra Hadoop filesystem URIs for which to request delegation tokens. The filesystem that hosts fs.defaultFS does not need to be listed here.</div>|<div style='width: 30pt'>seq</div>|<div style='width: 20pt'>1.4.0</div> +kyuubi\.credentials<br>\.hive\.enabled|<div style='width: 65pt;word-wrap: break-word;white-space: normal'>true</div>|<div style='width: 170pt;word-wrap: break-word;white-space: normal'>Whether to renew Hive metastore delegation token</div>|<div style='width: 30pt'>boolean</div>|<div style='width: 20pt'>1.4.0</div> +kyuubi\.credentials<br>\.renewal\.interval|<div style='width: 65pt;word-wrap: break-word;white-space: normal'>PT1H</div>|<div style='width: 170pt;word-wrap: break-word;white-space: normal'>How often Kyuubi renews one user's delegation tokens</div>|<div style='width: 30pt'>duration</div>|<div style='width: 20pt'>1.4.0</div> +kyuubi\.credentials<br>\.renewal\.retryWait|<div style='width: 65pt;word-wrap: break-word;white-space: normal'>PT1M</div>|<div style='width: 170pt;word-wrap: break-word;white-space: normal'>How long to wait before retrying to fetch new credentials after a failure.</div>|<div style='width: 30pt'>duration</div>|<div style='width: 20pt'>1.4.0</div> Review comment: can we rename retryWait to retry.wait? then users do not need to worry about case sensitivities -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
