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ambari-agent/src/main/python/ambari_agent/Controller.py (line 102) <https://reviews.apache.org/r/38788/#comment158038> Lets add a try: ... except: to ignore any failures during agent start. - Sumit Mohanty On Sept. 28, 2015, 5:29 a.m., Alejandro Fernandez wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/38788/ > ----------------------------------------------------------- > > (Updated Sept. 28, 2015, 5:29 a.m.) > > > Review request for Ambari, Dmytro Sen, Jayush Luniya, Mahadev Konar, and > Sumit Mohanty. > > > Bugs: AMBARI-13251 > https://issues.apache.org/jira/browse/AMBARI-13251 > > > Repository: ambari > > > Description > ------- > > During the Clients group of RU, restarting hdfs_client changes changes the > symlink /usr/hdp/current/hadoop-client/ from the old version to the new > version. > > Because the Data Dir Mount History file is stored at > /etc/hadoop/conf/dfs_data_dir_mount.hist and > /etc/hadoop/conf symlinks to /usr/hdp/current/hadoop-client/conf > it means that the file must be copied to the new location. > > Multiple clients (HDFS, HBase, Hive, YARN, MapReduce, Pig, Slider, Tez) > actually end up calling > {code} > hdp_select.select("hadoop-client", params.version) > {code} > that changes the symlink, so the first one to be ran during RU must copy the > file. If DataNode is present, it means that HDFS Client is guaranteed to be > there, and from all of those clients it is the first one in the Upgrade Pack. > > During a Rolling Downgrade, the file should already exist in the previous > version, and the file is only written to when DataNode is restarted, so we > are ok. > > > Diffs > ----- > > ambari-agent/src/main/python/ambari_agent/Controller.py 8746172 > ambari-agent/src/test/python/resource_management/TestDatanodeHelper.py > 70539ac > > ambari-server/src/main/java/org/apache/ambari/server/upgrade/UpgradeCatalog212.java > 37a87ab > > ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/configuration/hadoop-env.xml > 4cb2274 > > ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/package/alerts/alert_datanode_unmounted_data_dir.py > 2912406 > > ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/package/scripts/hdfs_datanode.py > 34ec8cd > > ambari-server/src/main/resources/common-services/HDFS/2.1.0.2.0/package/scripts/params_linux.py > 3160af2 > > ambari-server/src/main/resources/stacks/BIGTOP/0.8/services/HDFS/configuration/hadoop-env.xml > c6dd202 > > ambari-server/src/main/resources/stacks/BIGTOP/0.8/services/HDFS/package/scripts/params.py > fb0a4db > > ambari-server/src/main/resources/stacks/HDPWIN/2.1/services/HDFS/configuration/hadoop-env.xml > b5451d8 > > ambari-server/src/test/python/stacks/2.0.6/HDFS/test_alert_datanode_unmounted_data_dir.py > 4406231 > ambari-server/src/test/python/stacks/2.0.6/HDFS/test_datanode.py d5a42f0 > ambari-server/src/test/python/stacks/2.0.6/configs/altfs_plus_hdfs.json > f6c9bb4 > ambari-server/src/test/python/stacks/2.0.6/configs/client-upgrade.json > c13e5c9 > ambari-server/src/test/python/stacks/2.0.6/configs/default.json a0da7f0 > ambari-server/src/test/python/stacks/2.0.6/configs/default_hive_nn_ha.json > b644411 > > ambari-server/src/test/python/stacks/2.0.6/configs/default_hive_nn_ha_2.json > 770e085 > > ambari-server/src/test/python/stacks/2.0.6/configs/default_hive_non_hdfs.json > 988f38e > ambari-server/src/test/python/stacks/2.0.6/configs/default_no_install.json > 4cf647b > ambari-server/src/test/python/stacks/2.0.6/configs/default_oozie_mysql.json > 286a728 > > ambari-server/src/test/python/stacks/2.0.6/configs/default_update_exclude_file_only.json > b2fd6e8 > ambari-server/src/test/python/stacks/2.0.6/configs/flume_22.json 4f30caa > ambari-server/src/test/python/stacks/2.0.6/configs/hbase-2.2.json e7a516f > ambari-server/src/test/python/stacks/2.0.6/configs/hbase-check-2.2.json > 83120eb > ambari-server/src/test/python/stacks/2.0.6/configs/hbase-rs-2.2.json > 349a1cf > ambari-server/src/test/python/stacks/2.0.6/configs/hbase_no_phx.json > b71c4c8 > ambari-server/src/test/python/stacks/2.0.6/configs/hbase_with_phx.json > a7187f9 > ambari-server/src/test/python/stacks/2.0.6/configs/nn_ru_lzo.json a026259 > ambari-server/src/test/python/stacks/2.0.6/configs/oozie_existing_sqla.json > 01856df > > ambari-server/src/test/python/stacks/2.0.6/configs/ranger-namenode-start.json > 84c798b > ambari-server/src/test/python/stacks/2.0.6/configs/secured.json c9e20e2 > ambari-server/src/test/python/stacks/2.1/configs/client-upgrade.json > ca0b1a6 > ambari-server/src/test/python/stacks/2.2/configs/default.json dcd38d6 > > ambari-server/src/test/python/stacks/2.2/configs/default_custom_path_config.json > 2c9c918 > ambari-server/src/test/python/stacks/2.2/configs/falcon-upgrade.json > a4f9dc9 > ambari-server/src/test/python/stacks/2.2/configs/hive-upgrade.json 95456f9 > > ambari-server/src/test/python/stacks/2.2/configs/journalnode-upgrade-hdfs-secure.json > e06882a > ambari-server/src/test/python/stacks/2.2/configs/journalnode-upgrade.json > 1f23f11 > ambari-server/src/test/python/stacks/2.2/configs/knox_upgrade.json c77b3ec > ambari-server/src/test/python/stacks/2.2/configs/oozie-downgrade.json > e9018d8 > ambari-server/src/test/python/stacks/2.2/configs/oozie-upgrade.json fc4df58 > > ambari-server/src/test/python/stacks/2.2/configs/pig-service-check-secure.json > ad7a75a > ambari-server/src/test/python/stacks/2.2/configs/ranger-admin-default.json > f012a17 > ambari-server/src/test/python/stacks/2.2/configs/ranger-admin-upgrade.json > f47a247 > > ambari-server/src/test/python/stacks/2.2/configs/ranger-usersync-upgrade.json > fa4d614 > > ambari-server/src/test/python/stacks/2.2/configs/spark-job-history-server.json > 185d4d5 > ambari-server/src/test/python/stacks/2.3/configs/hbase_default.json f5a4487 > ambari-server/src/test/python/stacks/2.3/configs/hbase_secure.json d31c621 > ambari-server/src/test/python/stacks/2.3/configs/spark_default.json 730a81b > > ambari-server/src/test/resources/custom_actions/ru_execute_tasks_namenode_prepare.json > d42d01c > ambari-web/app/assets/data/configurations/config_versions.json 603d33e > ambari-web/app/assets/data/configurations/service_versions.json c5eb46c > ambari-web/app/assets/data/stacks/HDP-2.2/configurations.json 0399656 > ambari-web/app/data/BIGTOP/site_properties.js e71cab4 > ambari-web/app/data/HDP2/site_properties.js 03ffd31 > > Diff: https://reviews.apache.org/r/38788/diff/ > > > Testing > ------- > > Tested the alert during RU, and the mount history file was copied to the new > location, so no warnings were generated. > > Python unit tests passed, > ---------------------------------------------------------------------- > Total run:805 > Total errors:0 > Total failures:0 > OK > > > Thanks, > > Alejandro Fernandez > >
