Error occurred while performing the seed operation



Error occurred while performing the seed operation

Вопрос

i’ve got a database copy showing as «failed and suspended» and when trying to update the database copy is get the below error:

A source-side operation failed. Error An error occurred while performing the seed operation. Error: An error occurred while communicating with server ‘EX-MBX-02’. Error: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.. [Database: MDB02, Server: EX-MBX-01.icasinternal]

An error occurred while communicating with server ‘EX-MBX-02’. Error: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.

Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.

An existing connection was forcibly closed by the remote host

We have six other database copies that we are «heathly», before updating the failed database copy both nodes in the cluster are online but when the update command starts the node that hosts the failed copy of the database goes offline. At this time the mailbox server becomes unresponsive until the seed operation fails then the server returns to normal and the node is again active in the cluster.

I have attempted to remove the failed database copy which fails with the error: «The search catalog could not be dismounted for the database» I have stopped the search service and deleted the catalog folder and tried to remove again but it fails with the same error.

How can I get rid of the failed database copy?

Источник

Exchange 2013 DAG: Can’t add a database copy

IT Support

We had an issue when attempting to add a database copy for any mailbox databases in a new DAG. We received one of the following errors every time, regardless of the source or destination server.

The seeding operation failed. Error: An error occurred while running prerequisite checks. Error: The specified database isn’t configured for replication and therefore cannot be used to perform seed operations.

The seeding operation failed. Error: An error occurred while performing the seed operation. Error: An error occurred while processing a request on server ‘MailboxServerName’. Error: Database ‘6060c9ac-363a-4e52-a02e-ba749625e8ea’ was not active on source server ‘MailboxServerName’. [Database: Test3, Server: MailboxServerName.domain.com]

After closing out the dialog box we found that the database showed multiple copies, but that the copy was in a failed and/or suspended state.

We troubleshot this and found that the client’s several domain controllers were not replicating information as quickly as we were used to. To help with this, we set the preferred domain controller to a global catalog DC residing in the same network using the following command:

Set-ADServerSettings -PreferredServer server.domain.com

This seemed to help some other minor ECP errors where we felt like IIS was thinking faster than AD could keep up, but this did not remove the errors we saw when creating a database copy.

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The solution was to walk away and wait for about 30 minutes and on return we found that some of the mailboxes cleaned up on their own and went to a healthy state. For the majority that didn’t resolve themselves we fixed them in ECP by selecting the database and on the right pane click “Update” under the database copy that failed.


In the dialog box that followed we did not specify a source server, continued, and the mailbox replicated successfully.

If we failed to wait, and clicked “Update” right after one of the errors, the re-seeding would fail, so be patient!

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Error occurred while performing the seed operation

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Question

Good day.
Infrastructure

V12RUCTDMSC2002.CTDRUS.loc — Server with active database
V12RUCTDMSC2005.CTDRUS.loc — Server with copy base

I can not create a passive copy on the server.
When adding a copy to the server we need and pressing the save button, I am notified with an error.

An error occurred while performing the seed operation. Error: Failed to open a log truncation context to source server ‘V12RUCTDMSC2002.CTDRUS.loc’. Hresult: 0xc7ff1004. Error: Error returned from an ESE function call (-1305). [ Database : DB25, Server : V12RUCTDMSC2005.CTDRUS.loc]

If you click the update button and select the server, the copy will start to be created.
The base weighs about 400 GB, when there is a replication of about two or three hours, the interfaces fall asleep, the interfaces of the replication network, checked already 3 times.

The way out of this situation is to completely disconnect the interface and reverse the inclusion

1) If the replication interfaces fall, should not they be immediately supported by the MAPI network if the copy is being updated. (I mean that when the copy is updated, the connection is broken and an error occurs)

2) If the replication network is down why does not it update the copy over the MAPI network?

3) For what reason can the interfaces of the replication network fall?

4) Where do I start to get a copy on the next server?

When the replication network has fallen, we use MAPI, through the update button

DB25

An error occurred while running prerequisite checks. Error: Replication for database ‘DB25’ is not suspended. You must suspend replication before seeding. Use the Suspend-MailboxDatabaseCopy cmdlet to suspend replication for the database. [База данных: DB25, Сервер: V12RUCTDMSC2005.CTDRUS.loc]

I am doing

Suspend-MailboxDatabaseCopy –id db25\v12ructdmsc2005

and update again a copy An error occurred while performing the seed operation. Error: A timeout occurred while communicating with server ‘V12RUCTDMSC2002’. Error: «A connection could not be completed within 15 seconds.» [Database: DB25, Server: V12RUCTDMSC2005.CTDRUS.loc

as I understood it already on Mapi since the interfaces of the network replication do not work.

output

Get-DatabaseAvailabilityGroupNetwork | fl

RunspaceId : dd835137-6f53-4628-a2ac-3a8d9034cc02
Server : V12RUCTDMSC2005
Check : ClusterNetwork
CheckDescription : Checks that the networks are healthy.
Result : *FAILED*
Error : Subnet ‘10.77.89.0/24’ on network ‘ReplicationDagNetwork01’ is not Up. Current state is ‘Partitione d’.
Subnet ‘10.77.89.0/24’ on network ‘ReplicationDagNetwork01’ is not Up. Current state is ‘Partitione d’.
Node ‘V12RUCTDMSC2002’ has a network interface that is down. The IP address is ‘10.77.89.242’. Curre nt state is ‘Unreachable’.
Node ‘V12RUCTDMSC2005’ has a network interface that is down. The IP address is ‘10.77.89.247’. Curre nt state is ‘Unreachable’.

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RunspaceId : dd835137-6f53-4628-a2ac-3a8d9034cc02
Server : V12RUCTDMSC2005
Check : DatabaseRedundancy
CheckDescription : Verifies that databases have sufficient redundancy. If this check fails, it means that some database s are at risk of losing data.
Result : *FAILED*
There were database redundancy check failures for database ‘DB_25_Default5’ that may be lowering its redundancy and putting the database at risk of data loss. Redundancy Count: 1. Expected Redunda ncy Count: 2. Detailed error(s):
v12ructdmsc2005: Database ‘DB_25_Default5’ does not have enough copies configured to meet the validation crit eria.
There were database redundancy check failures for database ‘DB25’ that may be lowering its redun dancy and putting the database at risk of data loss. Redundancy Count: 1. Expected Redundancy Count:
2. Detailed error(s): v12ructdmsc2005:
passive database copy ‘DB25\v12ructdmsc2005’ has an unhealthy status: FailedAndSuspended. [S uspendComment: None specified.] [ErrorMessage: The seeding operation failed. Error: An error occurre d while performing the seed operation. Error: A timeout occurred while communicating with server ‘V1 2RUCTDMSC2002′. Error: «A connection could not be completed within 15 seconds.»].

RunspaceId : dd835137-6f53-4628-a2ac-3a8d9034cc02
Server : V12RUCTDMSC2005
Check : DatabaseAvailability
CheckDescription : Verifies that databases have sufficient availability. If this check fails, it means that some databa ses are at risk of losing service.
Result : *FAILED*
Error : Failures:
There were database availability check failures for database ‘DB_25_Default5’ that may be loweri ng its availability. Availability Count: 1. Expected Availability Count: 2. Detailed error(s): v12ructdmsc2005 Database ‘DB_25_Default5’ does not have enough copies configured to meet the validation crit eria. There were database availability check failures for database ‘DB25’ that may be lowering its ava ilability. Availability Count: 1. Expected Availability Count: 2. Detailed error(s):

v12ructdmsc2005: Database copy ‘DB25’ is in a Failed state on server ‘v12ructdmsc2005’. Reason: The seeding o peration failed. Error: An error occurred while performing the seed operation. Error: A timeout occu rred while communicating with server ‘V12RUCTDMSC2002’. Error: «A connection could not be completed
within 15 seconds.». If you need to activate this database copy, you can use the Move-ActiveMailboxD atabase cmdlet with the -SkipHealthChecks parameter to forcibly activate the database copy.

RunspaceId : dd835137-6f53-4628-a2ac-3a8d9034cc02
Server : V12RUCTDMSC2005
Check : DBCopySuspended
CheckDescription : Checks if any database copies are in the ‘Suspended’ state.
Result : *FAILED*
Error : Continuous Replication for Database ‘DB25\V12RUCTDMSC2005’ is in a ‘FailedAndSuspended’ state on mac hine ‘V12RUCTDMSC2005’. The reason it is suspended is: The seeding operation failed. Error: An error occurred while performing the seed operation. Error: A timeout occurred while communicating with se rver ‘V12RUCTDMSC2002’. Error: «A connection could not be completed within 15 seconds.»

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Источник

Exchange 2016 — DAG copy/seed keeps failing

Trying to figure out why I can’t get an Exchange database to copy. Keep getting the following error when doing the following command:

update-mailboxdatabasecopy ILM-DB01\EXC-001 -DeleteExistingFiles

The seeding operation failed. Error: An error occurred while performing the seed operation. Error: Communication was terminated by server ‘EXC-002’: Data could not be read because the communication channel was closed. [Database: DB01, Server: EXC-001.domain.com]

+ CategoryInfo : InvalidOperation: (:) [Update-MailboxDatabaseCopy], SeedInProgressException
+ FullyQualifiedErrorId : [Server=EXC-002,RequestId=bc6494a3-dfa0-4b41-83dd-0d360cf7a1af,TimeStamp=6/17/2019 1
1:29:09 PM] [FailureCategory=Cmdlet-SeedInProgressException] 31B98326,Microsoft.Exchange.Management.SystemConfigurationTasks.UpdateDatabaseCopy
+ PSComputerName : exc-002.domain.com

The source server is EXC-002 and the destination is EXC-001.

DB01\EXC-001
Passive Failed and Suspended
Copy queue length: 110346
Content index state: Suspended

There are 2 other databases and they are healthy on both servers. I do not have circular logging turned on, and have dismounted/mounted this database to verify. Trying to figure out how I can get a seed going and not move the users to another database.

Reduce Complexity & Optimize IT Capabilities

2 Replies

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  • thumb_up 81 Helpful Votes

Check the results of running the following scripts:

Besides, have you tried suspending the database copy and reseed it again?

Brand Representative for Microsoft

Joyceshen is on point with the last command, suspend-mailboxdatabasecopy first then try the update command

Report back findings

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