Cannot force vault mailbox

As per the dtrace lines, I could imagine the issue is similar as per TN https://www.veritas.com/support/en_US/article.000083503

EV:L       :AgentMessageDispenser::ActivateObject() |Exiting routine at point A |

EV:M     :AgentMessageDispenser::ProcessNextMessage() |ActivateObject has returned failure |

EV:M     AgentMessageDispenser::ProcessNextMessage - AGENTS_E_DISPABORTITEM, agent will sleep and abort the the current MSMQ Transation

EV:M     :AgentMessageDispenser::ProcessNextMessage() |Retrieved a message successfully from the queue |

EV:M     :AgentMessageDispenser::ProcessNextMessage() |Read new message or a message that is within its retry limit (). |About to process the message body |

EV:L       :AgentMessageDispenser::ActivateObject() |Entering routine |

EV:L       :AgentMessageDispenser::ActivateObject() |Called server side object, with arguments: |m_pIArchiveAction->ArchiveMarkedItems(ExchangeServer = "outlook.chs.net",| MailboxDn = "/o=CHS Exchange/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=gnieszcz",| FolderPath = " ",| PathSeparator = "AAAAAAAAKNCAFOPLINMNLCEOLCKIMIDCMKNAONLDABAADLNAOIPIGHLLEOEKLMHIMCCBEMBFCICDAAAAAAFPKHOCAAAA",| TimeStamp = "2017-07-25T18:52:37",| RetentionCategoryId = "",| AuthToken = "S-1-1-0 S-1-*****",| RetryCount = "0") |

EV:L       {CArchivingAgent::ArchiveMarkedItems()} (Entry)

EV:M     CAA::AMI() - Another thread is currently processing mailbox /o=CHS Exchange/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=gnieszcz, this request will be put to the back of the queue

EV:L       {CArchivingAgent::ArchiveMarkedItems()} (Exit) Status: [Success]

Regards

Pradeep Papnai

Hi dorlow,

   I'd absolutely agree with Pradeep here.  Just this line alone says enough:

88605813 14:23:28.959  [3236] (ArchiveTask) <10436> EV:H :CArchivingAgent::ProcessUser() |Archive/Journal Task ignored a Process Mailbox Message because the Process Mailbox mutex was locked and the mailbox is being processed by another thread |

  I'd have been surprised if adding the DS Server reg key fixed it (what the article lists as the solution).  However, you're working on an EV version that's so far out of support I barely remember what worked and what didn't with it, and it's easy enough to try.  Plus that article was designed for 9 and 10, so that's right in your range.  Give that a shot, and upgrade when you can!