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Update-AzDataLakeGen2AclRecursive

  • Reference
Module:
Az.Storage

Update ACL recursively on the specified path.

Syntax

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

Description

The Update-AzDataLakeGen2AclRecursive cmdlet updates ACL recursively on the specified path. The input ACL will merge the the original ACL: If ACL entry with same AccessControlType/EntityId/DefaultScope exist, update permission; else add a new ACL entry.

Examples

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

$acl = New-AzDataLakeGen2ItemAclObject -AccessControlType user -Permission rwx 
$acl = New-AzDataLakeGen2ItemAclObject -AccessControlType group -Permission rw- -InputObject $acl 
$acl = New-AzDataLakeGen2ItemAclObject -AccessControlType other -Permission "rw-" -InputObject $acl
Update-AzDataLakeGen2AclRecursive -FileSystem "filesystem1" -Acl $acl -Context $ctx

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

This command first creates an ACL object with 3 acl entries, then updates ACL recursively on a root directory of a file system.

Example 2: Update ACL recursively on a directory, and resume from failure with ContinuationToken

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

$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 = Update-AzDataLakeGen2AclRecursive -FileSystem "filesystem1" -Path "dir1" -Acl $acl -ContinuationToken $result.ContinuationToken -Context $ctx

$result

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

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

Example 3: Update ACL recursively chunk by chunk

$ContinueOnFailure = $true # Set it to $false if want to terminate the operation quickly on encountering failures
$token = $null
$TotalDirectoriesSuccess = 0
$TotalFilesSuccess = 0
$totalFailure = 0
$FailedEntries = New-Object System.Collections.Generic.List[System.Object]
do
{
    
    if ($ContinueOnFailure)
    {
        $result = Update-AzDataLakeGen2AclRecursive -FileSystem "filesystem1" -Path "dir1" -Acl $acl  -BatchSize 100 -MaxBatchCount 50 -ContinuationToken $token -Context $ctx -ContinueOnFailure
    }
    else
    {
        $result = Update-AzDataLakeGen2AclRecursive -FileSystem "filesystem1" -Path "dir1" -Acl $acl  -BatchSize 100 -MaxBatchCount 50 -ContinuationToken $token -Context $ctx
    }

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

This script will update ACL rescursively on directory chunk by chunk, with chunk size as BatchSize * MaxBatchCount. Chunk size is 5000 in this script.

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

$result = Update-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
            Set-AzDataLakeGen2AclRecursive -FileSystem "filesystem1" -Path $path -Acl $acl -Context $ctx
        }

This command first updateds 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