![]() ![]() ![]() ![]() StalledDueToTarget_MdbReplication: the move monitors the copy queue of transactions logs to other DAG member servers.Migration stalls when the queue gets too big and will last until it drains. StalledDueToTarget_MdbAvailability: the move monitors replay queue of transactions logs into remote copies of databases.Here are some most frequent stalls is Office 365 with their explanations the examples are for an onboarding move, where target is Exchange Online environment. Offboarding: migrate from Exchange Online (source) to Exchange on-premises (target).Onboarding: migrate from Exchange on-premises (source) to Exchange Online (target).The migration side that stalls could be called ‘stall side’ and it can be different for onboarding vs. Knowing all that, it is perfectly normal to sometimes see stalls on the Office 365 side during migrations. Please go through this article for more info. Mailbox migration is not considered as vital because things like mailbox moves are online moves (functionality is not impacted and access to mailboxes is mostly uninterrupted). Workloads like client connectivity and mail flow have a higher priority as they have direct impact on user functionality. In this part, we will talk about ‘slow’ migrations.įirstly, you should be aware that migration jobs to Exchange Online (which is a shared multi-tenancy environment) have a lower priority on our servers and are sometimes throttled to protect the health of the datacenter resources (server performance, disks, databases). What to do if a migration is Completed With Warnings (Part 5).Troubleshooting Slow Migrations (Part 4 - you are here).Troubleshooting Failed Migrations (Part 3).Digging Into Hybrid Migration Move Report Data (Part 2).Exchange Hybrid Migrations: More Than Just a Pretty Face (Part 1).If you already have POA 5.4.4 or higher, check that the package versions on WHOSON server match the ones listed above and that whoson service was restarted after the packages were updated.Here is your next installment in the troubleshooting hybrid migrations blog series! See: The issue is fixed in POA 5.4.4 and the following whoson package versions: # rpm -qa | grep whoson Mailbox name is longer than 32 symbols - there is a problem with WHOSON package fixed in POA 5.4.4. The following is written to maillog at the same time: Aug 21 14:18:07 dc2paralqmpd01 qmail-smtpd: WHOSONERR: wrong response from throttling daemon: '"addr" argument too long' If you try to send it directly from the mail server the same error is received: ~]# telnet localhost 25Ĭonnected to localhost.localdomain (127.0.0.1).ĭmVyeWxvbmd1c2VybmFtZUBldmVubG9uZ2VyZG9tYWlubmFtZS5jb20=Ĥ52 wrong response from throttling daemon The server responded: 452 wrong response from throttling daemon If you continue to receive this message, contact your server administrator or Internet service provider (ISP). You try to use a QMail mailbox in Microsoft Outlook and check the "My outgoing server (SMTP) requires authentication" checkbox, but receive the following error when Outlook tries to send a test email: Send test e-mail message: Your outgoing (SMTP) e-mail server has reported an internal error. Operations Automation Operations Automation:5.4 Operations Automation:5.5 Operations Automation:5.x Symptoms ![]()
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