Article ID: 2246, created on Oct 10, 2007, last review on Apr 11, 2016

  • Applies to:
  • Operations Automation 5.5
  • Operations Automation 6.0
  • Operations Automation 5.4
  • Operations Automation 5.3
  • Operations Automation 5.0
  • Virtuozzo containers for Windows 4.6


There are some failed tasks in the background task queue; some POA provisioning operations are stuck indefinitely, and related objects are out of sync (updating, creating, deleting, etc.).


PSA manages its hosts and services asynchronously using the Task Manager. Almost any operation, such as provisioning, updating the configuration, or removing provisioned services, triggers task scheduling in the Task Manager. Scheduled tasks are grouped by queues and can have dependencies that need to be executed in a certain order.

Sometimes, tasks can fail due to network, hardware, or software issues. In such cases, failed tasks usually need to be rescheduled manually to finish pending operations.

If a task has failed, it blocks dependent tasks. To process all of them, the first blocker tasks must be finished successfully. We do not recommend canceling background tasks, as this can produce various inconsistencies.

It is important to check if there are any failed tasks and then process them in order to avoid stalled operations and out-of-sync statuses.


The list of all scheduled tasks can be checked here (this path is available under the provider's control panel only):

Top > System Director > Task Manager > Background Tasks.

The general way to fix a failed task is as follows:

  1. Check why the task has failed.
  2. Fix the issues found in step 1.
  3. Re-run the task.
  4. Return to the first step if needed.

How to see why a task has failed:

Open Background tasks and click on a failed task name. Check the Last execution output field for an error (the most common errors are described below). If the reason for failure is unclear, it is a good idea to re-run the task to see if it is a permanent error.

How to re-run a task:

Open Background tasks and select failed task(s) by marking the corresponding check-box(es). Click the Run tasks button (only selected tasks will be run).

How to check task dependencies:

Open Background tasks and click on a task name. On the task details screen, two extra tabs are shown: Tasks this task blocks and Tasks this task depends on. Check the corresponding tab to see blocker or dependent tasks.

Common error messages:

Task name:


Error message:

PEM node is unmanageable, host_id=_<host_id>_.

Related article: #2258

Task name:

Delete webspace's AD users and groups

Error message:

Exception during execution of MPF request: "The file exists. [<response><errorContext description="The file exists. Object: Removing disk quota for user WEBHOSTING\i00133342" code="0x80070050" executeSeqNo="2"><errorSource namespace="NTFSManager" procedure="clearUserQuota" /></errorContext></response>]"

Related article: #1914

Task name:

any virtuozzo related

Error message:

ExSystem: ERRCODE 5000 ERRCODE_MINOR -4 VZALib error, code: -4, msg: Connection to vzagent was closed

Related article: #3012

Task name:

task for some VPS

Error Message:

ExSystem: ERRCODE 5000 ERRCODE_MINOR 1902 VZALib error, code: 1902, msg: Error parsing processes info for VE $VEID..

Related article: #3022

Task name:

Initialize mailbox "_<Username>_" (id=_<id>_)

Error message:

Cannot fetch URL: "", HTTP error: "Unauthorized" (HTTP error code: 401)

Related article: #3073

Task name:

Wait for objects to be replicated to all domain controllers (domain=hosting.local)

Error message:

Some of objects are still not replicated to all active domain controllers. AD replication may take up to several minutes. You have to troubleshoot AD replication only if this task has finally failed (all attempts have failed).

Related article: #3086

Task name:

Operation with FrontPage Server Extentions on host with subds_id=_<id>

Error message:_

FrontPage Server Extentions are not installed on host.

Related article: #3096

Task name:

Create Windows SiteBuilder site "<sitename>"

Error message:

Axis call has failed, message is Server was unable to process request. 
---> Exception of type "SWsoft.SiteBuilder.BO.Facade.PlanLimitException" was thrown., code is 71

Related article: #3090

Task name:

Update Apache domain service <ds_id> at <webserver>

Error message:

ExSystem: ERRCODE 0 ERRCODE_MINOR 0 OpMkDir: /usr/local/pem/vhosts/<hd_id>/webspace/httpdocs/<DocumentRoot>: Not a directory

Related article: #3091

Task name:

_Create virtual web server <srv_id> on host "<hostname>" (host_id=<host_id>)

Error message:

Exception during execution of MPF request: "The system cannot find the path specified. [<response><errorContext description="The system cannot find the path specified." code="0x80070003" executeSeqNo="24"><errorSource namespace="File System Provider Ex" procedure="createBinaryFile" /></errorContext></response>]"

Related article: #3088

Task name:

Disable domain service (ds_id=<ds_id>, hd_id=<hd_id>) on host "<hostname>" (host_id=<host_id>)

Error message:

DS not found (id = 1234)

Related article: #3466

Task name:

Create contact "<contact_name>" (id=<contact_id>)

Error Message:

Exception during execution of MPF request: "Unknown error 0x80131600 [<response><errorContext description="This task does not support recipients of this type. The specified recipient hosting.local/Hosting/Provider/S000<sub_id>/<contact_name> is of type MailContact. Please make sure that this recipient matches the required recipient type for this task. Cmdlet="Enable-MailContact"

Identity="LDAP://CN=<contact_name>,OU=S000<sub_id>,OU=Provider,OU=Hosting,DC=hosting,DC=local" code="0x80131600" executeSeqNo="2"><errorSource namespace="Exchange 2007 Provider" procedure="MailEnableContact" /><errorSource namespace="SW Managed Exchange" procedure="MailEnableContact" /></errorContext></response>]"

Related article_: #3498

Task name:

any BlackBerry related task

Error message:

Exception during execution of MPF request: "Unknown error 0x80131500 [<response><errorContext description="BESUserAdmin Error: "Service busy.", Error Code = -27" code="0x80131500" executeSeqNo="1"><errorSource namespace="BESProvider" procedure="someProcedure" /></errorContext></response>]"

Related article: #1850

Additional Information

Please see #2247 for more information regarding out-of-sync issues.

Search Words

Provisioning request failed.

mailbox in removing status

failing task enable virtual web server

Destination host '' (#23), IP '' : Provisioning request failed. Unspecified error [<response><errorContext description="Der Vorgang kann nicht erfolgreich beendet werden.

please investigate failed task

Cannot migrate containers to new host node


PBA tasks failed

Destroying service of Subscription failed

black berry server


No such file or directory (errno 2)

failed taks in task manager

failed task

Remove access host from database

rushfiles APS

There is no contact with id = 5321180.

Container Has Disappeared

service user task stuck

Destination host '' (#2857), IP '' : Node #2857 is unmanageable.

Service #441 does not exist.

report raw

The system cannot open the file


Sitebiulder stuck on configuring

Ошибка добавления : The requested URL returned error: 503

remove application

object is not found in the Active Directory

There is no such object on the server

Change LFA for webspace

rovisioning request failed. The system cannot find the path specified. [<response><errorContext description="Application '/wordpress' was not found in site

failed task for user modification: user not found

Destroy Customer Subscription

Application script structured output is not valid. Reason: 'Document not well-formed.'. Details: 'WEB__config_DIR'

failed tasks

Task 'Uninstall FPSE support for virtual web server 4848 on host ''

removeHandler on OBJREF:Exchange:0:getMailGroup:425518

create sharepoint site

Installation of application template fails

hyper-v: не ставятся ВМ

taskStopVPS on SCREF:VPSTasks:0

DS not found

fail task

Object is read only because it was created by a future version of Exchange

Exception during execution of MPF request: 'The filename, directory name, or volume label syntax is incorrect. [<response><errorContext description="The filename, directory name, or volume label syntax is incorrect." code="0x8007007b" executeSeqNo="3"><errorSource namespace="NTFSManager" procedure="changeFileOwner"/></errorContext></response>]'.

Delete Sharepoint website

There is no such database, db_id=31620.

Failed task Enable virtual web server



The organization 'OU=S001011438, OU=R0000423493, OU=Hosting, DC=win-sv, DC=com' contains AD objects.

apache settings

Disable email forwarding for mailbox

duplicate tasks

5356b422f65bdad1c3e9edca5d74a1ae caea8340e2d186a540518d08602aa065 c27596ac4fff6cb4c8ec8891dae57001 2554725ed606193dd9bbce21365bed4e ac82ce33439a9c1feec4ff4f2f638899 5b048d9bddf8048a00aba7e0bdadef37 614fd0b754f34d5efe9627f2057b8642 a8cdca46e4357a6e38fded820770e272 6c20476fe6c3408461ce38cbcab6d03b 2897d76d56d2010f4e3a28f864d69223 d02f9caf3e11b191a38179103495106f 965b49118115a610e93635d21c5694a8 956c448bddc7e1f3585373687602379f 6f1456866eed87488c0f02b298a741c0

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