Exchange Journaling task queues
Table: Exchange Journaling task queues
describes the queues that the Exchange Journaling task uses. Here,
exchange server is the name of the
server being managed by the Exchange Journaling task, whereas
number is a number that uniquely
identifies the queue.
Table: Exchange Journaling task queues
Queue name
|
Messages placed on the queue
|
Enterprise Vault Journaling task for server queue J1
|
Post Process Archived Item, Operation Failed.
|
Enterprise Vault Journaling task for server queue J2
|
Process Item.
|
Enterprise Vault Journaling task for server queue J3
|
Process Mailbox.
|
Enterprise Vault Journaling task for server queue J4
|
Synchronize System.
|
Table: Messages in the Exchange Journaling task
queues provides more information on the messages that the
Exchange Journaling task may place in queues J1 through J4.
Table: Messages in the Exchange Journaling task
queues
Message
|
Notes
|
Operation Failed
|
Informs the Exchange Journaling task that an error
has occurred and that it should do the following:
This message is sent if
an error occurs during archiving and storage.
|
Post Process Archived Item
|
Informs the Exchange
Journaling task to delete an archive pending item from the journal
mailbox. It occurs after a message has been stored by the Storage
service, and backed-up.
|
Process Mailbox
|
Asks the Exchange
Journaling task to examine the journal mailbox, finding any
messages that have arrived. Up to 500 new messages will be turned
into archive pending, and a message is placed on the Storage
Archive queue of the Storage service for each message to be
archived.
The process mailbox
message is issued every minute onto queue J3. This allows for
continuous scanning of the journal mailbox while the Journaling
task is running.
|
Synchronize System
|
Synchronization requests
for an Exchange Journaling task are placed on the J4 queue. When
synchronization is run, a Synchronize System request is placed on
this queue, and this generates a Synchronize Mailbox request for
each mailbox that needs to be synchronized. Having multiple
Synchronize Mailbox requests means that the requests can be
serviced by multiple threads.
The J4 queue is processed
at all times but is always the lowest priority task. This means
that scheduled background archives always take precedence over a
synchronize.
|