### Example: Install v1.11.0 Installer

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/Selecting_MapR_Installer.html

This example demonstrates how to use the MAPR_INSTALLER_REPO_DIR environment variable to instruct mapr-setup.sh to install a specific older version of the Installer, in this case, v1.11.0.

```bash
export MAPR_INSTALLER_REPO_DIR=installer-v1.11.0
```

--------------------------------

### Node Expression Examples for Installer

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/c_installer_faq.html

Illustrates various syntaxes for specifying node ranges and rack assignments when configuring the installer.

```text
host1, host2, host3
```

```text
host[A-Z][0-99]
```

```text
host[000-333]
```

```text
host[0-3],otherhost[00-05]
```

```text
host[0-5]:rack1,host[6-10]:rack2
```

--------------------------------

### Installer Stanza Command Example

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/Env_Variables_Installer_Container.html

This example shows how to use the MAPR_STANZA_FILE variable when issuing the Stanza install command as an argument to the script.

```bash
mapr-docker-installer.sh install -nv
```

--------------------------------

### Installer CLI Probe Command Example

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/Stanzas/SilentInstallerCommands.html

Example of using the probe command with overrides, demonstrating correct syntax for host list specification.

```bash
./mapr-installer-cli probe -o config.hosts='["host1", "host2", "host3"]' .....
```

```bash
./mapr-installer-cli probe -o config.hosts='["host1","host2","host3"]' .....
```

--------------------------------

### Download Installer Logs Example

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/ReferenceGuide/installer-logs.html

Demonstrates downloading installer logs for a specific fabric. The output shows the status and the path where the log archive is saved.

```bash
# maprcli installer logs -c fabric-25 -i true -a true -json
{
"timestamp":1715853237475,
"timeofday":"2024-05-16 02:53:57.475 GMT-0700 AM",
"status":"OK",
"total":0,
"data":[
    ],
    "messages":[
            "{'cluster_name': 'fabric-25', 'installer_logs': 'true', 'log_path': '/var/mapr/fabriclogs/fabric-25_installer/archive.zip'}"
    ]
}
```

--------------------------------

### Start Hive Shell

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/Hive/HiveAndMapR-DBIntegration-GettingStarted.html

Navigate to your Hive installation directory and start the Hive shell. Ensure Hive is installed and configured.

```bash
cd $HIVE_HOME
bin/hive
```

--------------------------------

### Example: Primary-Secondary Replication Setup

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/MapR-DB/SettingUpMultiMasterReplicationAuto.html

This example shows how to set up primary-secondary replication between 'customersA' and 'customersB' tables within the same 'sanfrancisco' cluster.

```bash
maprcli table replica autosetup -path /mapr/sanfrancisco/customersA -replica /mapr/sanfrancisco/customersB
```

--------------------------------

### Example: Multi-Master Replication Setup

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/MapR-DB/SettingUpMultiMasterReplicationAuto.html

This example demonstrates setting up multi-master replication between the 'customers' table in the 'sanfrancisco' cluster and a new 'customers' table in the 'newyork' cluster.

```bash
maprcli table replica autosetup -path /mapr/sanfrancisco/customers -replica /mapr/newyork/customers -multimaster true
```

--------------------------------

### Full Static Provisioning Example (PV, PVC, Pod)

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/CSIdriver/csi_example_static_provisioning.html

This example demonstrates a complete static provisioning setup. It includes the definition of a PersistentVolume, a PersistentVolumeClaim, and a Pod that utilizes the claim.

```yaml
apiVersion: v1
kind: PersistentVolume
metadata:
  name: test-simplepv
  namespace: test-csi
  labels:
    name: pv-simplepv-test
spec:
  accessModes:
  - ReadWriteOnce
  persistentVolumeReclaimPolicy: Delete
  capacity:
    storage: 5Gi
  csi:
    nodePublishSecretRef:
      name: "mapr-ticket-secret"
      namespace: "test-csi"
    driver: com.mapr.csi-kdf
    volumeHandle: test-simplepv
    volumeAttributes:
      volumePath: "/"
      cluster: "clusterA"
      cldbHosts: "10.10.102.96"
      securityType: "secure"
      platinum: "true"
---
apiVersion: v1
kind: Pod
metadata:
  name: test-pv
  namespace: test-csi
spec:
  securityContext:
    runAsUser: 1000
    fsGroup: 2000
  containers:
  - name: busybox
    image: busybox
    args:
    - sleep
    - "1000000"
    resources:
      requests:
        memory: "2Gi"
        cpu: "500m"
    volumeMounts:
    - mountPath: /mapr
      name: maprflex
  volumes:
    - name: maprflex
      persistentVolumeClaim:
        claimName: test-simplepvc
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: test-simplepvc
  namespace: test-csi
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 5G
```

--------------------------------

### Starting the Drill Cluster

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/Drill/drill_on_yarn_command_line_tool.html

This example shows how to start the Drill cluster after setting the DRILL_CONF_DIR environment variable.

```bash
$DRILL_HOME/bin/drill-on-yarn.sh start
```

--------------------------------

### Example User Creation Prompt

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/CreatingPACCImage.html

This is an example of the interactive prompts encountered when creating a new cluster user account within the container setup process.

```bash
Testing for cluster user account...

Enter MapR cluster user name: robertjones

User 'robertjones' does not exist. Creating new cluster user account...

Enter 'robertjones' uid: 502
 Enter 'robertjones' group name: users
 Enter 'robertjones' password: <password>
...Success

Configuring MapR client ( -c -C perfnode134.perf.lab -N my.cluster.com)...

create /opt/mapr/conf/conf.old
Configuring Hadoop-2.7.0 at /opt/mapr/hadoop/hadoop-2.7.0
Done configuring Hadoop
CLDB node list: perfnode134.perf.lab:7222
Zookeeper node list:
Node setup configuration: hbinternal
Log can be found at: /opt/mapr/logs/configure.log

...Success
```

--------------------------------

### Access Installer Web UI

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/pre_built_installer_container_images.html

After starting the installer service, access the web-based Installer through the provided URL in a web browser. Use the external address if the internal one is not accessible.

```text
installer (380) started with log /opt/mapr/installer/logs/installer.log
Started service mapr-installer

...Success

    To continue installing MapR software, open the following URL in a web browser

              If the address '172.17.0.2' is internal and not accessible
           from your browser, use the external address mapped to it instead

                              https://172.17.0.2:9443
 
```

--------------------------------

### Example Host List in Stanza File

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/Stanzas/WorkingWithYAML.html

Demonstrates how to specify a list of hosts for package installation using a range notation.

```yaml
- examplenode[1-3].example.com
```

--------------------------------

### Installer CLI Override Syntax Example

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/Stanzas/SilentInstallerCommands.html

Illustrates how to specify multiple key=value pairs as overrides on the command line.

```bash
-o <key1=value1> <key2=value2> <key3=value3>
```

--------------------------------

### Start POSIX Client Service

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdministratorGuide/MapRfusePOSIXClient-Managing.html

Use this command to start the POSIX client service. Replace '*' with 'basic' or 'platinum' based on your installed package.

```bash
mkdir /mapr
service mapr-posix-client-* start
```

--------------------------------

### CLI Example: Get Table Info

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/ReferenceGuide/table-info.html

Example of how to list information for a specific table using the CLI, including the `-json` option for formatted output. The path should be absolute and include the cluster name.

```bash
maprcli table info -path /mapr/my.cluster.com/volume1/mytable -json
```

--------------------------------

### Install the Installer and Definition Files

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/c_installer_how_it_works.html

Use this option to install the Installer and definition files. This is the default behavior if no other option is specified.

```bash
./mapr-setup.sh install
```

--------------------------------

### Filtering GET Operation Results Example - C

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/MapR-DB/SupportforHBaseJavaFilter-C-get.html

Shows how to filter results from a GET operation using the libMapRClient C API. The mapr-client package must be installed.

```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <signal.h>
#include <sys/types.h>
#include <unistd.h>

#include <mapr/MapRClient.h>

#define HBASE_CONF_FILE "core-site.xml"

// Example: Filter on the results of a GET operation
// This example is a placeholder and requires actual implementation details
// for setting up the MapRClient, table, row key, filter, and processing results.
int main(int argc, char **argv) {
    // Placeholder for actual C code implementation
    printf("This is a placeholder for the GET operation filtering example.\n");
    printf("Actual implementation would involve MapRClient initialization, fetching a specific row, applying a filter, and processing the result.\n");
    return 0;
}
```

--------------------------------

### MapRFileSystem ACE Management Example

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/DevelopmentGuide/SampleApplications-Java-API.html

A comprehensive example demonstrating setting, getting, modifying, and deleting Access Control Entries (ACEs) for directories and files using the MapRFileSystem API. It includes setup, operations, and verification steps.

```Java
String rootDir = "maprfs:///";

    Configuration conf = new Configuration();
    FileSystem fs = FileSystem.get(conf);

    Path testDir = new Path(rootDir + "FileAceTest");
    mkDir(fs, testDir);

    Path testFile = new Path(testDir + "/testFile");
    createFile(fs, testFile);

    ArrayList<MapRFileAce> aces = new ArrayList<MapRFileAce>();

    // Set
    System.out.println("SETTING ACES");
    MapRFileAce ace = new MapRFileAce(MapRFileAce.AccessType.READFILE);
    ace.setBooleanExpression("u:m7user1");
    aces.add(ace);
    ace = new MapRFileAce(MapRFileAce.AccessType.READDIR);
    ace.setBooleanExpression("u:m7user1|u:root");
    aces.add(ace);
    ((MapRFileSystem)fs).setAces(testDir, aces);
    ((MapRFileSystem)fs).setAces(testFile, aces);

    // Get
    System.out.println("GETTING ACES");
    List<MapRFileAce> newDirAces = ((MapRFileSystem)fs).getAces(testDir);
    System.out.println("Path: " + testDir);
    for (int i = 0; i < newDirAces.size(); ++i) {
      System.out.println(newDirAces.get(i).getAccessType() + ": " +
                         newDirAces.get(i).getBooleanExpression());
    }
    System.out.println("");
    List<MapRFileAce> newFileAces = ((MapRFileSystem)fs).getAces(testFile);
    System.out.println("Path: " + testFile);
    for (int i = 0; i < newFileAces.size(); ++i) {
      System.out.println(newFileAces.get(i).getAccessType() + ": " +
                         newFileAces.get(i).getBooleanExpression());
    }

    // Modify
    System.out.println("MODIFYING ACES");
    aces = new ArrayList<MapRFileAce>();
    ace = new MapRFileAce(MapRFileAce.AccessType.READDIR);
    ace.setBooleanExpression("u:m7user1|u:root|u:m7user2");
    aces.add(ace);
    ace = new MapRFileAce(MapRFileAce.AccessType.WRITEFILE);
    ace.setBooleanExpression("u:m7user2");
    aces.add(ace);
    ((MapRFileSystem)fs).modifyAces(testDir, aces);
    ((MapRFileSystem)fs).modifyAces(testFile, aces);

    // Get
    System.out.println("GETTING ACES");
    newDirAces = ((MapRFileSystem)fs).getAces(testDir);
    System.out.println("Path: " + testDir);
    for (int i = 0; i < newDirAces.size(); ++i) {
      System.out.println(newDirAces.get(i).getAccessType() + ": " +
                         newDirAces.get(i).getBooleanExpression());
    }
    System.out.println("");
    newFileAces = ((MapRFileSystem)fs).getAces(testFile);
    System.out.println("Path: " + testFile);
    for (int i = 0; i < newFileAces.size(); ++i) {
      System.out.println(newFileAces.get(i).getAccessType() + ": " +
                         newFileAces.get(i).getBooleanExpression());
    }

    // Delete
    System.out.println("DELETING ACES");
    ((MapRFileSystem)fs).deleteAces(testDir);
    ((MapRFileSystem)fs).deleteAces(testFile);

    // Get
    System.out.println("GETTING ACES");
    newDirAces = ((MapRFileSystem)fs).getAces(testDir);
    System.out.println("Path: " + testDir);
    if (newDirAces == null || newDirAces.size() == 0)
      System.out.println("AceCount: 0");
    else
      System.out.println("AceCount: " + newDirAces.size());
    System.out.println("");
    newFileAces = ((MapRFileSystem)fs).getAces(testFile);
    System.out.println("Path: " + testFile);
    if (newFileAces == null || newFileAces.size() == 0)
      System.out.println("AceCount: 0");
    else
      System.out.println("AceCount: " + newFileAces.size());

    // Get
    System.out.println("GETTING ACES");
    newDirAces = ((MapRFileSystem)fs).getAces(testDir);
    System.out.println("Path: " + testDir);
    for (int i = 0; i < newDirAces.size(); ++i) {
      System.out.println(newDirAces.get(i).getAccessType() + ": " +
                         newDirAces.get(i).getBooleanExpression());
    }
    System.out.println("");

```

--------------------------------

### Getting Started with cURL Commands for MapR-DB JSON REST API

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/MapR-DB/JSON_DB/UsingMapRDBJSONRESTAPI.html

Use cURL commands to invoke the MapR-DB JSON REST API for basic operations. These examples demonstrate the core functionality.

```bash
curl -X POST -d '{"name":"John Doe", "age":30}' http://<host>:<port>/<table_name>
```

```bash
curl http://<host>:<port>/<table_name>/<document_id>
```

```bash
curl -X PUT -d '{"name":"Jane Doe", "age":31}' http://<host>:<port>/<table_name>/<document_id>
```

```bash
curl -X DELETE http://<host>:<port>/<table_name>/<document_id>
```

```bash
curl -X POST -d '{"name":"John Doe", "age":30}' http://<host>:<port>/<table_name>?_id=<document_id>
```

```bash
curl http://<host>:<port>/<table_name>?query={"age":{"$gt":25}}
```

```bash
curl http://<host>:<port>/<table_name>?query={"name":"John Doe"}&fields=name,age
```

```bash
curl http://<host>:<port>/<table_name>?query={"age":{"$gt":25}}&sort={"age":-1}
```

--------------------------------

### Start Hue Webserver on Edge Node

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/Hue/StartingHueWebserver.html

Use this command to start the Hue webserver when it's installed on an edge node. This is not the recommended installation method.

```bash
/opt/mapr/hue/hue-<version>/bin/hue-server start
```

--------------------------------

### Start ZooKeeper Service

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/UpgradeGuide/RestartingClusterServices.html

Start the ZooKeeper service if it is installed on the node.

```bash
# service mapr-zookeeper start
```

--------------------------------

### Kafka Connect REST API: Get Connector Tasks Request Example

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/Kafka/Connect-rest-get-connectors-tasks.html

An example HTTP request to the Kafka Connect REST API to get tasks for the 'hdfs-sink-connector'.

```http
GET /connectors/hdfs-sink-connector/tasks HTTP/1.1
Host: connect.example.com
```

--------------------------------

### Set Up CDC with Default Topic Partitions

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/MapR-DB/DB-ChangeData/setting-up-cdc-example1.html

This example demonstrates creating a volume, a JSON table, a Streams changelog stream with default partitions, and establishing a changelog relationship. It then views the changelog information.

```bash
maprcli volume create -name cdcvol
maprcli table create -path /user/mapr/cdcvol/tab1 -tabletype JSON
maprcli stream create -path /user/mapr/cdcvol/stream1 -source /user/mapr/cdcvol/tab1 -source_type TABLE -source_topic default
maprcli stream topic add -path /user/mapr/cdcvol/stream1 -topic default -source /user/mapr/cdcvol/tab1 -source_type TABLE
maprcli stream changelog list -path /user/mapr/cdcvol/stream1
```

--------------------------------

### Start or Restart Installer

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/StartingandStoppingInstaller.html

Execute this command to initiate the `mapr-installer` service or to restart it if it is already running. Requires root privileges.

```bash
systemctl start mapr-installer
```

--------------------------------

### Remove Installer Data with Installer 1.10+

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/troubleshoot_repo_url_errors.html

Use the 'remove' command to delete properties.json, the installer database, and installer packages for Installer 1.10 and later. The setup script itself is not removed.

```bash
bash /tmp/mapr-setup.sh remove
```

--------------------------------

### Example Output of Get Controller Command

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/ReferenceGuide/kafkatopic_getcontroller.html

This JSON output displays details of the Apache Kafka Wire Protocol broker, including its ID, host, port, security protocol, and start time. This is the result of running the `maprcli kafkatopic getcontroller -json` command.

```json
{
        "timestamp":1687176345951,
        "timeofday":"2023-06-19 05:05:45.951 GMT-0700 AM",
        "status":"OK",
        "total":1,
        "data":[
                {
                        "id":0,
                        "host":"m2-sm2027-14-n2.mip.storage.hpecorp.net",
                        "port":"9092",
                        "security.protocol":"SASL_PLAINTEXT",
                        "sasl.mechanism":"PLAIN",
                        "starttime":"1687008489078"
                }
        ]
}
```

--------------------------------

### Example gateway.conf File

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/ReferenceGuide/gateway.conf.html

This is an example of a gateway.conf file, showing commented-out properties that can be configured. Properties are loaded at startup and are specific to the Gateway instance that loads them.

```properties
#
# Gateway Config file.
# Properties defined in this file are loaded during startup
# and are valid for only Gateway which loaded the config.
# These parameters are not persisted anywhere else.
#
# Gateway listening port
#gateway.port=7660
# Number of worker threads to receive replication stream requests
#gateway.receive.numthreads=128
# Number of flush threads to send put requests to replicas
#gateway.flush.numthreads=128
#
# Max limit on putbuffer memory in MB
#gateway.put.mem.mb=128
#
# Max limit on log file size
#gateway.logfile.size.mb=1024
#
#
# Gateway ES properties
#gateway.es.request.maxsize.kb=128
#gateway.es.cluster.maxClients=1

```

--------------------------------

### Get Consumer Instance Subscription Request Example

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/Kafka/REST-get-consumers-instances-subscription.html

Example of an HTTP GET request to retrieve the subscription list for a Kafka consumer instance. Ensure the Content-Type header is set to application/vnd.kafka.v2+json.

```curl
curl -X GET -H "Content-Type: application/vnd.kafka.v2+json" 
https://localhost:8082/consumers/grouptest/instances/user/subscription
```

--------------------------------

### Install Go OJAI Client

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/MapR-DB/JSON_DB/GettingStartedGoOJAI.html

Install the Go OJAI client using the go get command. Ensure Golang 1.10 or later is installed.

```bash
go get github.com/mapr/maprdb-go-client
```

--------------------------------

### Install with Local Repository using Archive Files

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/c_local_repo_install.html

Run the `mapr-setup.sh` script with the `-a` flag followed by the full path to the archive files. This bypasses the internet connectivity check and automatically creates a local repository.

```bash
./mapr-setup.sh -a <full path to the archive files>
```

--------------------------------

### CLI Example: Setting Up CDC

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/MapR-DB/DB-ChangeData/setting-up-cdc-example1.html

Use these CLI commands to set up CDC by creating volumes, a JSON table, a changelog stream, and a changelog relationship. View changelog information using the info command.

```bash
// Creating and mounting a volume for the source table
   maprcli volume create -name tableVolume -path /tableVolume
          
// Creating and mounting a volume for the destination stream
   maprcli volume create -name streamVolume -path /streamVolume
          
// Creating a new JSON table
   maprcli table create -path /tableVolume/cdcTable -tabletype json
          
// Creating a stream for CDC data
   maprcli stream create -path /streamVolume/changelogStream -ischangelog true
          
// Creating a changelog relationship between the source table and the stream
   maprcli table changelog add -path /tableVolume/cdcTable -changelog /streamVolume/changelogStream:cdcTopic1

// Viewing the changelog information
   maprcli table changelog info -changelog  /streamVolume/changelogStream:cdcTopic1 -json
```

--------------------------------

### Drill JDBC URL for Single-Node Installation

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/Drill/Downloading-Configuring-Driver.html

Example connection URLs for a Drill installation on a single node.

```text
jdbc:drill:zk=10.10.100.56:5181/drill/demo_mapr_com-drillbits
jdbc:drill:zk=10.10.100.24:2181/drill/drillbits1
```

--------------------------------

### Start ZooKeeper Service

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/patch_datanodes.html

Use this command to start the ZooKeeper service on a data node after patching, if it was installed.

```bash
sudo service mapr-zookeeper start
```

--------------------------------

### Run MapR Installer Container

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/pre_built_installer_container_images.html

Execute the sample-run script to start the MapR Installer services within a Docker container. Ensure Docker is installed and running.

```bash
$ ./docker_images/installer/mapr-docker-installer.sh
```

--------------------------------

### Example Configuration for configure.sh

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdministratorGuide/t_CLDBFailover_restart_nodes.html

An example of how to use the `configure.sh` script with specific CLDB and ZooKeeper hostnames and ports, along with a cluster name.

```bash
/opt/mapr/server/configure.sh -C r1n1.sj.us:7222 -Z r1n1.sj.us:5181,r2n1.sj.us:5181,r3n1.sj.us:5181,r4n1.sj.us:5181,r5n1.sj.us:5181 -N MyCluster
```

--------------------------------

### Example db.conf File Configuration

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/ReferenceGuide/db.conf.html

This example shows a typical configuration for the db.conf file, illustrating various parameters for database connection and data retention.

```properties
db.url=localhost:3306
db.user=root
db.passwd=mapr
db.schema=metrics
db.mode=mysql
db.driverclass=com.mysql.jdbc.Driver
db.joblastacessed.limit.hours=48
db.partition.finest.count.days=3
db.partition.fine.count.days=15
db.partition.coarse.count.years=100
### How many files with raw node metrics data to keep
metric.file.rotate=365
```

--------------------------------

### Drill JDBC URL for Distributed Installation

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/Drill/Downloading-Configuring-Driver.html

Example connection URL for a distributed Drill installation connecting to a ZooKeeper quorum.

```text
jdbc:drill:zk=10.10.100.30:5181,10.10.100.31:5181,10.10.100.32:5181/drill/drillbits1
```

--------------------------------

### Create Storage Pool Example

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/ReferenceGuide/mrconfig-sp-make.html

Demonstrates how to create a storage pool on a disk group with the device path `/dev/sdc` on the local node. Ensure data on `/dev/sdc` is backed up before execution.

```bash
/opt/mapr/server/mrconfig sp make /dev/sdc

```

--------------------------------

### Get Connector Status Request Example

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/Kafka/Connect-rest-put-connectors-status.html

This example shows how to make a GET request to the Kafka Connect REST API to retrieve the status of a connector named 'hdfs-sink-connector'. Ensure the Host header is set to your Connect cluster's address.

```http
GET /connectors/hdfs-sink-connector/status HTTP/1.1 
Host: connect.example.com
```

--------------------------------

### Example: Enable Access Key

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/ReferenceGuide/mc-admin-creds-enable-access-key.html

Example of enabling a specific access key for the 'salesobject' deployment. Ensure you replace 'XyAbZpo123tuY' with the actual access key.

```cli
/opt/mapr/bin/mc admin creds enable-access-key salesobject XyAbZpo123tuY
```

--------------------------------

### Run the Installer Container

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/CreatingInstallerContainer.html

Execute the generated mapr-docker-installer.sh script to start the MapR installer services within the container. This command launches the installer, making it accessible via a web browser.

```bash
./docker_images/installer/mapr-docker-installer.sh
```

--------------------------------

### Example Queue Configuration with Label

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdministratorGuide/LabelBasedScheduling-YARN-QueueLabels-FairScheduler.html

An example demonstrating how to define a queue named 'Customer Data Analysis' with a weight of 2.0 and assign it the 'Fast' label.

```xml
<queue name="Customer Data Analysis">
   <weight>2.0</weight>
   <label>Fast</label>
</queue>
```

--------------------------------

### Start Ecosystem Component Service

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/applying_patch_ecosystem_component.html

On all nodes where the service is installed, start the ecosystem component service. Replace `<ip_address>` with the actual IP.

```bash
maprcli node services -name livy -action start -nodes <ip_address>
```

--------------------------------

### Configure and Start ATS 1.0

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/MapROverview/c_configuring_ATS_for_yarn.html

Run this script to configure and automatically start ATS 1.0. Replace `<hostname>` with your actual hostname.

```bash
configure.sh -R -TL <hostname>
```

--------------------------------

### MapR CLI Volume Mount Example

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/ReferenceGuide/CLI-Syntax.html

Provides a practical example of the 'volume mount' command with specific parameters. This demonstrates how to type the command and its options on a single line for actual usage.

```bash
maprcli volume mount -name test-volume -path /test
```

--------------------------------

### Display Command-Line Help

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/c_installer_how_it_works.html

Use this option to display the command-line help for the Installer. If used with other options, only -h is considered.

```bash
./mapr-setup.sh -h
```

--------------------------------

### List All Installed Services, Groups, and Hosts

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/Stanzas/GettingInfoServices.html

Use this command to get a comprehensive overview of all installed services, groups, and hosts in the cluster.

```bash
./bin/mapr-installer-cli list installed -n
```

--------------------------------

### KSQL Demo Example

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/Kafka/KSQL/ksql-reference.html

Demonstrates creating a stream, performing a non-persistent query, and a persistent query in KSQL.

```ksql
CREATE STREAM clicks (clicktime BIGINT, url VARCHAR,){
  kafka_topic = 'kafka-topic-clicks',
  value_format = 'JSON'
};

SELECT url FROM clicks WHERE clicktime > 1000000000000;

CREATE TABLE redirects AS
SELECT url, COUNT(*) as count
FROM clicks
GROUP BY url;

```

--------------------------------

### Install POSIX Client on Ubuntu

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/t_MapRPOSIXfuseClient_install.html

Use apt-get to install the POSIX client package. Replace '*' with 'basic' or 'platinum' as needed.

```bash
# sudo apt-get install mapr-posix-client-*, where * is either the basic or the platinum package
For example: apt-get install mapr-posix-client-basic
```

--------------------------------

### Start ZooKeeper Service

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdministratorGuide/StartCluster.html

Use this command to start the ZooKeeper service on nodes where it is installed. Ensure you are running as the root user or using sudo.

```bash
service mapr-zookeeper start
```

--------------------------------

### Make Setup Script Executable

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/MapRContainerDevelopers/RunMapRContainerDevelopers.html

Before running the setup script, ensure it has execute permissions.

```bash
chmod +x mapr_devsandbox_container_setup.sh
```

--------------------------------

### Start FUSE-based POSIX Client

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdministratorGuide/Multitenancy-SampleWorkflow.html

Start the FUSE-based POSIX client service after configuring fuse.conf. Ensure the service name matches your installation.

```bash
$ service mapr-posix-client-* start
```

--------------------------------

### Installer CLI Top-Level Help

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/Stanzas/SilentInstallerCommands.html

Command to display top-level help information for the installer CLI.

```bash
./bin/mapr-installer-cli -h
```

--------------------------------

### Example GET Request for Connector Configuration

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/Kafka/Connect-rest-get-connector-config.html

An example HTTP request to retrieve the configuration of the 'hdfs-sink-connector' using the Kafka Connect REST API.

```http
GET /connectors/hdfs-sink-connector/config HTTP/1.1
Host: connect.example.com
Accept: application/json
```

--------------------------------

### Installer Service Status and Access URL

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/CreatingInstallerContainer.html

This output indicates that the MapR installer service has started successfully within the container. It provides the log file location and the URL to access the web-based installer interface.

```text
installer (380) started with log /opt/mapr/installer/logs/installer.log
Started service mapr-installer

...Success

    To continue installing MapR software, open the following URL in a web browser

              If the address '172.17.0.2' is internal and not accessible
           from your browser, use the external address mapped to it instead

                              https://172.17.0.2:9443
 

```

--------------------------------

### Install Hive, HiveServer2, and HiveMetastore on Ubuntu

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/InstallingHive.html

Install Hive, HiveServer2, and HiveMetastore packages using apt-get on Ubuntu.

```bash
apt-get install mapr-hive mapr-hiveserver2 mapr-hivemetastore
```

--------------------------------

### Remove Installer Files with mapr-setup.sh

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/c_installer_faq.html

Use this command to remove installer files, including properties.json and the installer database, when you need to rerun mapr-setup.sh with a new repository URL. This action does not remove the setup script itself.

```bash
mapr-setup.sh remove
```

--------------------------------

### Copy MapReduce Example Job to MapRFS

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/Hive/t_run_jobs_webhcat_server.html

Copies the MapReduce example JAR file to the MapRFS layer. Ensure the Hadoop version matches your installation.

```bash
hadoop fs -put /opt/mapr/hadoop/hadoop-<version>/hadoop-<version>-dev-examples.jar /user/mapr/webhcat/examples.jar
```

--------------------------------

### Start MySQL Command

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/UpgradeGuide/TroubleshootingHiveUpgradeIssues.html

Use this command to start the MySQL client. Replace <user> and <password> with your actual credentials.

```bash
mysql -u <user> -p <password>
```

--------------------------------

### Install or Upgrade Core with Stanza

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/Stanzas/SilentInstallerCommands.html

Use the `install` command for fresh installs, incremental installs, or upgrades. It requires a template file and supports optional overrides, certificate checking, URL, force, and verbose flags.

```bash
install [-h]
     [--overrides [OVERRIDES [OVERRIDES …]]]
     [--no_check_certificate][--url URL]
     [--force][--verbose] --template TEMPLATE
```

--------------------------------

### Example Installed Packages Output

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/Checking_MEP_version.html

Examine the output of 'yum list installed' to find package versions, such as mapr-hadoop-util, which can be used to infer the EEP version.

```text
Installed Packages
...
mapr-cldb.x86_64                      6.2.0.0.20200618050710.GA-1     @MapR_Core
mapr-client.x86_64                    6.2.0.0.20200618050710.GA-1     @MapR_Core
mapr-core.x86_64                      6.2.0.0.20200618050710.GA-1     @MapR_Core
mapr-core-internal.x86_64             6.2.0.0.20200618050710.GA-1     @MapR_Core
mapr-fileserver.x86_64                6.2.0.0.20200618050710.GA-1     @MapR_Core
mapr-hadoop-util.x86_64               2.7.4.0.202006180214-1          @MapR_Ecosystem
mapr-librdkafka.x86_64                0.11.3.202006031114-1           @MapR_Core
mapr-zk-internal.x86_64             6.2.0.0.20200618050710.GA-1     @MapR_Core
mapr-zookeeper.x86_64                 6.2.0.0.20200618050710.GA-1     @MapR_Core
...
```

--------------------------------

### Download mapr-setup.sh using wget

Source: https://docs.ezmeral.hpe.com/datafabric-customer-managed/79/AdvancedInstallation/CreatingInstallerContainer.html

Download the mapr-setup.sh script directly from the HPE Ezmeral package repository using wget. Ensure you have the correct user credentials and URL. This script is required to build the installer container image.

```bash
wget --user=<email> --password=<token> https://package.ezmeral.hpe.com/releases/installer/mapr-setup.sh -P /tmp
```