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Remove-AzDataLakeGen2AclRecursive

  • Reference
Module:
Az.Storage

Remove ACL recursively on the specified path.

Syntax

Remove-AzDataLakeGen2AclRecursive
      [-FileSystem] <String>
      [[-Path] <String>]
      [-ContinuationToken <String>]
      -Acl <PSPathAccessControlEntry[]>
      [-ContinueOnFailure]
      [-BatchSize <Int32>]
      [-MaxBatchCount <Int32>]
      [-AsJob]
      [-Context <IStorageContext>]
      [-DefaultProfile <IAzureContextContainer>]
      [-WhatIf]
      [-Confirm]
      [<CommonParameters>]

Description

The Remove-AzDataLakeGen2AclRecursive cmdlet removes ACL recursively on the specified path. The ACL entries in original ACL, which has same AccessControlType, DefaultScope and EntityId with input ACL entries (even with different permission) wil lbe removed.

Examples

Example 1: Remove ACL recursively on a root directiry of filesystem

$acl = Set-AzDataLakeGen2ItemAclObject -AccessControlType user -EntityId $id -Permission r-x -DefaultScope
$acl = Set-AzDataLakeGen2ItemAclObject -AccessControlType user -EntityId $id -Permission r-x -InputObject $acl
Remove-AzDataLakeGen2AclRecursive -FileSystem "filesystem1" -Acl $acl -Context $ctx
WARNING: To find the ACL Entry to remove, will only compare AccessControlType, DefaultScope and EntityId, will omit Permission.

FailedEntries                   : 
TotalDirectoriesSuccessfulCount : 7
TotalFilesSuccessfulCount       : 5
TotalFailureCount               : 0
ContinuationToken               :

This command first creates an ACL object with 2 acl entries, then removes ACL recursively on a root directory of a file system.

Example 2: Remove ACL recursively on a directory

$result = Remove-AzDataLakeGen2AclRecursive -FileSystem "filesystem1" -Path "dir1" -Acl $acl  -Context $ctx
WARNING: To find the ACL Entry to remove, will only compare AccessControlType, DefaultScope and EntityId, will omit Permission.

$result

FailedEntries                   : {dir1/dir2/file4}
TotalDirectoriesSuccessfulCount : 500
TotalFilesSuccessfulCount       : 2500
TotalFailureCount               : 1
ContinuationToken               : VBaHi5TfyO2ai1wYTRhIL2FjbGNibjA2c3RmATAxRDVEN0UzRENFQzZCRTAvYWRsc3Rlc3QyATAxRDY2M0ZCQTZBN0JGQTkvZGlyMC9kaXIxL2ZpbGUzFgAAAA==

$result.FailedEntries

Name            IsDirectory ErrorMessage                                                                   
----            ----------- ------------                                                                   
dir0/dir2/file4       False This request is not authorized to perform this operation using this permission.

# user need fix the failed item , then can resume with ContinuationToken

$result = Remove-AzDataLakeGen2AclRecursive -FileSystem "filesystem1" -Path "dir1" -Acl $acl -ContinuationToken $result.ContinuationToken -Context $ctx
WARNING: To find the ACL Entry to remove, will only compare AccessControlType, DefaultScope and EntityId, will omit Permission.

$result

FailedEntries                   : 
TotalDirectoriesSuccessfulCount : 100
TotalFilesSuccessfulCount       : 1000
TotalFailureCount               : 0
ContinuationToken               :

This command first removes ACL recursively on a directory and failed, then resume with ContinuationToken after user fix the failed file.

Example 3: Remove ACL recursively chunk by chunk

$token = $null
$TotalDirectoriesSuccess = 0
$TotalFilesSuccess = 0
$totalFailure = 0
$FailedEntries = New-Object System.Collections.Generic.List[System.Object]
do
{
    $result = Remove-AzDataLakeGen2AclRecursive -FileSystem "filesystem1" -Path "dir1" -Acl $acl  -BatchSize 1000 -MaxBatchCount 50 -ContinuationToken $token -Context $ctx

    # echo $result
    $TotalFilesSuccess += $result.TotalFilesSuccessfulCount
    $TotalDirectoriesSuccess += $result.TotalDirectoriesSuccessfulCount
    $totalFailure += $result.TotalFailureCount
    $FailedEntries += $result.FailedEntries
    $token = $result.ContinuationToken
}while (($token -ne $null) -and ($result.TotalFailureCount -eq 0))
echo ""
echo "[Result Summary]"
echo "TotalDirectoriesSuccessfulCount: `t$($TotalDirectoriesSuccess)"
echo "TotalFilesSuccessfulCount: `t`t`t$($TotalFilesSuccess)"
echo "TotalFailureCount: `t`t`t`t`t$($totalFailure)"
echo "ContinuationToken: `t`t`t`t`t$($token)"
echo "FailedEntries:"$($FailedEntries | ft)

This script will remove ACL rescursively on directory chunk by chunk, with chunk size as BatchSize * MaxBatchCount. Chunk size is 50000 in this script.

Example 4: Remove ACL recursively on a directory and ContinueOnFailure, then resume from failures one by one

$result = Remove-AzDataLakeGen2AclRecursive -FileSystem "filesystem1" -Path "dir1" -Acl $acl -ContinueOnFailure -Context $ctx

$result

FailedEntries                   : {dir0/dir1/file1, dir0/dir2/file4}
TotalDirectoriesSuccessfulCount : 100
TotalFilesSuccessfulCount       : 500
TotalFailureCount               : 2
ContinuationToken               : VBaHi5TfyO2ai1wYTRhIL2FjbGNibjA2c3RmATAxRDVEN0UzRENFQzZCRTAvYWRsc3Rlc3QyATAxRDY2M0ZCQTZBN0JGQTkvZGlyMC9kaXIxL2ZpbGUzFgAAAA==

$result.FailedEntries

Name            IsDirectory ErrorMessage                                                                   
----            ----------- ------------                                                                   
dir0/dir1/file1       False This request is not authorized to perform this operation using this permission.
dir0/dir2/file4       False This request is not authorized to perform this operation using this permission.

# user need fix the failed item , then can resume with ContinuationToken

foreach ($path in $result.FailedEntries.Name)
        {
            # user code to fix failed entry in $path
            
            #set ACL again
            Remove-AzDataLakeGen2AclRecursive -FileSystem "filesystem1" -Path $path -Acl $acl -Context $ctx
        }

This command first removes ACL recursively to a directory with ContinueOnFailure, and some items failed, then resume the failed items one by one.

Parameters

-Acl

The POSIX access control list to set recursively for the file or directory.

Type:PSPathAccessControlEntry[]
Position:Named
Default value:None
Required:True
Accept pipeline input:False
Accept wildcard characters:False

-AsJob

Run cmdlet in the background

Type:SwitchParameter
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-BatchSize

If data set size exceeds batch size then operation will be split into multiple requests so that progress can be tracked. Batch size should be between 1 and 2000. Default is 2000.

Type:Int32
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-Confirm

Prompts you for confirmation before running the cmdlet.

Type:SwitchParameter
Aliases:cf
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-Context

Azure Storage Context Object

Type:IStorageContext
Position:Named
Default value:None
Required:False
Accept pipeline input:True
Accept wildcard characters:False

-ContinuationToken

Continuation Token.

Type:String
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-ContinueOnFailure

Set this parameter to ignore failures and continue proceeing with the operation on other sub-entities of the directory. Default the operation will terminate quickly on encountering failures.

Type:SwitchParameter
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-DefaultProfile

The credentials, account, tenant, and subscription used for communication with Azure.

Type:IAzureContextContainer
Aliases:AzureRmContext, AzureCredential
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-FileSystem

FileSystem name

Type:String
Position:0
Default value:None
Required:True
Accept pipeline input:True
Accept wildcard characters:False

-MaxBatchCount

Maximum number of batches that single change Access Control operation can execute. If data set size exceeds MaxBatchCount multiply BatchSize, continuation token will be return.

Type:Int32
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

-Path

The path in the specified FileSystem that to change Acl recursively. Can be a file or directory. In the format 'directory/file.txt' or 'directory1/directory2/'. Skip set this parameter to change Acl recursively from root directory of the Filesystem.

Type:String
Position:1
Default value:None
Required:False
Accept pipeline input:True
Accept wildcard characters:False

-WhatIf

Shows what would happen if the cmdlet runs. The cmdlet is not run.

Type:SwitchParameter
Aliases:wi
Position:Named
Default value:None
Required:False
Accept pipeline input:False
Accept wildcard characters:False

Inputs

String

IStorageContext

Outputs

String