Community Articles

Find and share helpful community-sourced technical articles.
Announcements
Celebrating as our community reaches 100,000 members! Thank you!
avatar
Expert Contributor

This is a basic Ambari blueprint for clusters that implement high availability for HDFS, Yarn and Hive for HDP 2.6. This includes Namenode HA, Resourcemanager HA, Hive Metastore server HA and Hive Server HA. It does not implement a high-availability database for the Hive metastore, though, as that is done within the relational database backed itself. It has been developed and tested using Cloudbreak, but should work with Ambari as well.

Hostgroup Layout

62485-hostgroup-layout.png

Raw Blueprint JSON

{
  "Blueprints": {
    "blueprint_name": "cb24-hdp26-ha",
    "stack_name": "HDP",
    "stack_version": "2.6"
  },
  "settings": [
    {
      "recovery_settings": []
    },
    {
      "service_settings": [
        {
          "name": "HIVE",
          "credential_store_enabled": "false"
        }
      ]
    },
    {
      "component_settings": []
    }
  ],
  "host_groups": [
    {
      "name": "master_mgmt",
      "components": [
        {
          "name": "METRICS_COLLECTOR"
        },
        {
          "name": "METRICS_GRAFANA"
        },
        {
          "name": "ZOOKEEPER_SERVER"
        },
        {
          "name": "JOURNALNODE"
        },
        {
          "name": "INFRA_SOLR"
        },
        {
          "name": "INFRA_SOLR_CLIENT"
        },
        {
          "name": "METRICS_MONITOR"
        },
        {
          "name": "ZOOKEEPER_CLIENT"
        },
        {
          "name": "HDFS_CLIENT"
        },
        {
          "name": "YARN_CLIENT"
        },
        {
          "name": "OOZIE_CLIENT"
        },
        {
          "name": "MAPREDUCE2_CLIENT"
        },
        {
          "name": "HIVE_CLIENT"
        },
        {
          "name": "TEZ_CLIENT"
        }
      ],
      "cardinality": "1"
    },
    {
      "name": "master_nn1",
      "components": [
        {
          "name": "NAMENODE"
        },
        {
          "name": "ZKFC"
        },
        {
          "name": "RESOURCEMANAGER"
        },
        {
          "name": "METRICS_MONITOR"
        },
        {
          "name": "APP_TIMELINE_SERVER"
        },
        {
          "name": "HIVE_METASTORE"
        },
        {
          "name": "HIVE_SERVER"
        },
        {
          "name": "HCAT"
        },
        {
          "name": "WEBHCAT_SERVER"
        },
        {
          "name": "ZOOKEEPER_SERVER"
        },
        {
          "name": "JOURNALNODE"
        },
        {
          "name": "HIVE_CLIENT"
        },
        {
          "name": "HDFS_CLIENT"
        },
        {
          "name": "YARN_CLIENT"
        },
        {
          "name": "OOZIE_CLIENT"
        },
        {
          "name": "ZOOKEEPER_CLIENT"
        },
        {
          "name": "LIVY2_SERVER"
        },
        {
          "name": "SPARK2_CLIENT"
        },
        {
          "name": "MAPREDUCE2_CLIENT"
        },
        {
          "name": "TEZ_CLIENT"
        }
      ],
      "cardinality": "1"
    },
    {
      "name": "master_nn2",
      "components": [
        {
          "name": "NAMENODE"
        },
        {
          "name": "ZKFC"
        },
        {
          "name": "RESOURCEMANAGER"
        },
        {
          "name": "METRICS_MONITOR"
        },
        {
          "name": "HISTORYSERVER"
        },
        {
          "name": "HIVE_METASTORE"
        },
        {
          "name": "HIVE_SERVER"
        },
        {
          "name": "SLIDER"
        },
        {
          "name": "PIG"
        },
        {
          "name": "OOZIE_SERVER"
        },
        {
          "name": "ZOOKEEPER_SERVER"
        },
        {
          "name": "JOURNALNODE"
        },
        {
          "name": "HIVE_CLIENT"
        },
        {
          "name": "HDFS_CLIENT"
        },
        {
          "name": "YARN_CLIENT"
        },
        {
          "name": "OOZIE_CLIENT"
        },
        {
          "name": "ZOOKEEPER_CLIENT"
        },
        {
          "name": "SPARK2_JOBHISTORYSERVER"
        },
        {
          "name": "SPARK2_CLIENT"
        },
        {
          "name": "MAPREDUCE2_CLIENT"
        },
        {
          "name": "TEZ_CLIENT"
        }
      ],
      "cardinality": "1"
    },
    {
      "name": "datanode",
      "components": [
        {
          "name": "HIVE_CLIENT"
        },
        {
          "name": "TEZ_CLIENT"
        },
        {
          "name": "SPARK2_CLIENT"
        },
        {
          "name": "YARN_CLIENT"
        },
        {
          "name": "OOZIE_CLIENT"
        },
        {
          "name": "DATANODE"
        },
        {
          "name": "METRICS_MONITOR"
        },
        {
          "name": "NODEMANAGER"
        }
      ],
      "cardinality": "3+"
    }
  ],
  "configurations": [
    {
      "core-site": {
        "properties": {
          "fs.trash.interval": "4320",
          "fs.defaultFS": "hdfs://mycluster",
          "hadoop.proxyuser.yarn.hosts": "%HOSTGROUP::master_nn1%,%HOSTGROUP::master_nn2%",
          "hadoop.proxyuser.hive.hosts": "%HOSTGROUP::master_nn1%,%HOSTGROUP::master_nn2%",
          "ha.zookeeper.quorum": "%HOSTGROUP::master_nn1%:2181,%HOSTGROUP::master_nn2%:2181,%HOSTGROUP::master_mgmt%:2181"
        }
      }
    },
    {
      "hdfs-site": {
        "properties": {
          "dfs.namenode.safemode.threshold-pct": "0.99",
          "dfs.client.failover.proxy.provider.mycluster": "org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider",
          "dfs.ha.automatic-failover.enabled": "true",
          "dfs.ha.fencing.methods": "shell(/bin/true)",
          "dfs.ha.namenodes.mycluster": "nn1,nn2",
          "dfs.namenode.http-address": "%HOSTGROUP::master_nn1%:50070",
          "dfs.namenode.http-address.mycluster.nn1": "%HOSTGROUP::master_nn1%:50070",
          "dfs.namenode.http-address.mycluster.nn2": "%HOSTGROUP::master_nn2%:50070",
          "dfs.namenode.https-address": "%HOSTGROUP::master_nn1%:50470",
          "dfs.namenode.https-address.mycluster.nn1": "%HOSTGROUP::master_nn1%:50470",
          "dfs.namenode.https-address.mycluster.nn2": "%HOSTGROUP::master_nn2%:50470",
          "dfs.namenode.rpc-address.mycluster.nn1": "%HOSTGROUP::master_nn1%:8020",
          "dfs.namenode.rpc-address.mycluster.nn2": "%HOSTGROUP::master_nn2%:8020",
          "dfs.namenode.shared.edits.dir": "qjournal://%HOSTGROUP::master_nn1%:8485;%HOSTGROUP::master_nn2%:8485;%HOSTGROUP::master_mgmt%:8485/mycluster",
          "dfs.nameservices": "mycluster"
        }
      }
    },
    {
      "hive-site": {
        "properties": {
          "hive.metastore.uris": "thrift://%HOSTGROUP::master_nn1%:9083,thrift://%HOSTGROUP::master_nn2%:9083",
          "hive.exec.compress.output": "true",
          "hive.merge.mapfiles": "true",
          "hive.server2.tez.initialize.default.sessions": "true",
          "hive.server2.transport.mode": "http"
        }
      }
    },
    {
      "webhcat-site": {
        "properties_attributes": {},
        "properties": {
          "templeton.hive.properties": "hive.metastore.local=false,hive.metastore.uris=thrift://%HOSTGROUP::master_nn1%:9083\,thrift://%HOSTGROUP::master_nn2%:9083,hive.metastore.sasl.enabled=false"
        }
      }
    },
    {
      "mapred-site": {
        "properties": {
          "mapreduce.job.reduce.slowstart.completedmaps": "0.7",
          "mapreduce.map.output.compress": "true",
          "mapreduce.output.fileoutputformat.compress": "true"
        }
      }
    },
    {
      "yarn-site": {
        "properties": {
          "hadoop.registry.rm.enabled": "true",
          "hadoop.registry.zk.quorum": "%HOSTGROUP::master_nn1%:2181,%HOSTGROUP::master_nn2%:2181,%HOSTGROUP::master_mgmt%:2181",
          "yarn.log.server.url": "http://%HOSTGROUP::master_nn2%:19888/jobhistory/logs",
          "yarn.resourcemanager.address": "%HOSTGROUP::master_nn1%:8050",
          "yarn.resourcemanager.admin.address": "%HOSTGROUP::master_nn1%:8141",
          "yarn.resourcemanager.cluster-id": "yarn-cluster",
          "yarn.resourcemanager.ha.automatic-failover.zk-base-path": "/yarn-leader-election",
          "yarn.resourcemanager.ha.enabled": "true",
          "yarn.resourcemanager.ha.rm-ids": "rm1,rm2",
          "yarn.resourcemanager.hostname": "%HOSTGROUP::master_nn1%",
          "yarn.resourcemanager.hostname.rm1": "%HOSTGROUP::master_nn1%",
          "yarn.resourcemanager.hostname.rm2": "%HOSTGROUP::master_nn2%",
          "yarn.resourcemanager.recovery.enabled": "true",
          "yarn.resourcemanager.resource-tracker.address": "%HOSTGROUP::master_nn1%:8025",
          "yarn.resourcemanager.scheduler.address": "%HOSTGROUP::master_nn1%:8030",
          "yarn.resourcemanager.store.class": "org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore",
          "yarn.resourcemanager.webapp.address": "%HOSTGROUP::master_nn1%:8088",
          "yarn.resourcemanager.webapp.address.rm1": "%HOSTGROUP::master_nn1%:8088",
          "yarn.resourcemanager.webapp.address.rm2": "%HOSTGROUP::master_nn2%:8088",
          "yarn.resourcemanager.webapp.https.address": "%HOSTGROUP::master_nn1%:8090",
          "yarn.resourcemanager.webapp.https.address.rm1": "%HOSTGROUP::master_nn1%:8090",
          "yarn.resourcemanager.webapp.https.address.rm2": "%HOSTGROUP::master_nn2%:8090",
          "yarn.timeline-service.address": "%HOSTGROUP::master_nn1%:10200",
          "yarn.timeline-service.webapp.address": "%HOSTGROUP::master_nn1%:8188",
          "yarn.timeline-service.webapp.https.address": "%HOSTGROUP::master_nn1%:8190"
        }
      }
    }
  ]
}

The blueprint file is also attached: cb24-hdp26-ha.txt

3,250 Views
Comments

Please share hostgroup template as well.

Thanks,

Ramu

avatar
Expert Contributor

Hi @Ramu Valleti, I have been using Cloudbreak, which takes care of creating the hosts in the cloud and them mapping them to the hostgroups in the blueprint. I may try this blueprint with Ambari sometime next week. I will comment with my results.

Thanks,

John

avatar
New Contributor

Can you provide a sample blueprint which has the following

1. HBase

2. Kafka

3. Solr

Thanks

K