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azdata bdc hdfs mount

  • Artikkeli

Applies to: Azure Data CLI (azdata)

The following article provides reference for the sql commands in the azdata tool. For more information about other azdata commands, see azdata reference

Commands

Command Description
azdata bdc hdfs mount create Create mounts of remote stores in HDFS.
azdata bdc hdfs mount delete Delete mounts of remote stores in HDFS.
azdata bdc hdfs mount status Status of mount(s).
azdata bdc hdfs mount refresh Refresh the contents of a mount in HDFS.

azdata bdc hdfs mount create

Create mounts of remote stores in HDFS. The credentials for accessing the remote store, if any, should be specified using the environment variable MOUNT_CREDENTIALS as a comma-separated list of key=value pairs. Any commas in the keys or values must be escaped.

azdata bdc hdfs mount create --remote-uri -r 
                             --mount-path -m

Examples

To mount container "data" in ADLS Gen 2 account "adlsv2example" on HDFS path /mounts/adlsv2/data using the shared key

Set the MOUNT_CREDENTIALS environment variable as "fs.azure.abfs.account.name=<your-storage-account-name>.dfs.core.windows.net,fs.azure.account.key.<your-storage-account-name>.dfs.core.windows.net=<storage-account-access-key>".
azdata bdc hdfs mount create --remote-uri abfs://data@adlsv2example.dfs.core.windows.net/
    --mount-path /mounts/adlsv2/data

To mount a remote HDFS BDC (hdfs://namenode1:8080/) on local HDFS path /mounts/hdfs/

azdata bdc hdfs mount create --remote-uri hdfs://namenode1:8080/ --mount-path /mounts/hdfs/

Required Parameters

--remote-uri -r

URI of the remote store that is to be mounted (source of mount).

--mount-path -m

HDFS path where mount has to be created (destination of mount).

Global Arguments

--debug

Increase logging verbosity to show all debug logs.

--help -h

Show this help message and exit.

--output -o

Output format. Allowed values: json, jsonc, table, tsv. Default: json.

--query -q

JMESPath query string. See http://jmespath.org/ for more information and examples.

--verbose

Increase logging verbosity. Use --debug for full debug logs.

azdata bdc hdfs mount delete

Delete mounts of remote stores in HDFS.

azdata bdc hdfs mount delete --mount-path -m

Examples

Delete mount created at /mounts/adlsv2/data for an ADLS Gen 2 storage account.

azdata bdc hdfs mount delete --mount-path /mounts/adlsv2/data

Required Parameters

--mount-path -m

the HDFS path corresponding to the mount that has to be deleted.

Global Arguments

--debug

Increase logging verbosity to show all debug logs.

--help -h

Show this help message and exit.

--output -o

Output format. Allowed values: json, jsonc, table, tsv. Default: json.

--query -q

JMESPath query string. See http://jmespath.org/ for more information and examples.

--verbose

Increase logging verbosity. Use --debug for full debug logs.

azdata bdc hdfs mount status

Status of mount(s).

azdata bdc hdfs mount status [--mount-path -m]

Examples

Get mount status by path

azdata bdc hdfs mount status --mount-path /mounts/hdfs

Get status of all mounts.

azdata bdc hdfs mount status

Optional Parameters

--mount-path -m

Mount path.

Global Arguments

--debug

Increase logging verbosity to show all debug logs.

--help -h

Show this help message and exit.

--output -o

Output format. Allowed values: json, jsonc, table, tsv. Default: json.

--query -q

JMESPath query string. See http://jmespath.org/ for more information and examples.

--verbose

Increase logging verbosity. Use --debug for full debug logs.

azdata bdc hdfs mount refresh

Refresh the contents of a mount in HDFS.

azdata bdc hdfs mount refresh --mount-path -m

Examples

Refresh mount created at /mounts/adlsv2/data.

azdata bdc hdfs mount refresh --mount-path /mounts/adlsv2/data

Required Parameters

--mount-path -m

HDFS path corresponding to the mount that has to be refreshed.

Global Arguments

--debug

Increase logging verbosity to show all debug logs.

--help -h

Show this help message and exit.

--output -o

Output format. Allowed values: json, jsonc, table, tsv. Default: json.

--query -q

JMESPath query string. See http://jmespath.org/ for more information and examples.

--verbose

Increase logging verbosity. Use --debug for full debug logs.

Next steps

For more information about other azdata commands, see azdata reference.

For more information about how to install the azdata tool, see Install azdata.