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  3. July 2014

RE: Journal receivers

Check your QCTL start date and time is one quick way.

I'm still concerned/confused why this journal receiver is in QRECOVERY library.
I checked QRECOVERY for other journals/journal receivers.
I found these 3 journals showing that they were also created on my other LPAR.
How can this be?
Again, matching the date of P5 to P7 migration weekend.
It almost looks like the wrong volume was used for the migration.

QDBJRNCOLM *JRN QRECOVERY
QDBJRNFILE *JRN QRECOVERY
QDBJRNXRFQ *JRN QRECOVERY

Creation information:
Creation date/time . . . . . . . . . : 05/04/12 18:30:56
Created by user . . . . . . . . . . : QSYS
System created on . . . . . . . . . : PENCOR06
Object domain . . . . . . . . . . . : *SYSTEM

Below is some info on QRECOVERY

Problem(Abstract)

QRECOVERY is used for system journaling as well as holding objects from failing processes.
Resolving the problem

QRECOVERY is used for system journaling as well as holding objects from failing processes.

Library QRECOVERY (or iASP equivalent):

QDBAL* - ALTER TABLE status files
QDBIX* - Create index build status files
QDBJRN - used to journal the system cross-reference files in QSYS
QDBJRNXRFQ -journals the data queues that sends and receives data for programs that updates the entries in the cross reference files.
QDBRG* - Reorganize status files
QDBTI* - Omnifind text index build status files
QADBERAP - Asynchronuos index rebuild
(EDTRBDAP equivalent)
QSQ901S - SQL -901 Lo

QDBJRN and QDBJRNXRFQ journal receivers are also housed in qrecovery.

Note: You should not use the library QRECOVERY because it is intended for system use only. The library QRECOVERY contains objects that the system needs to operate properly.

For additional information on QDBJRN, you should refer to the following URL: http://www-01.ibm.com/support/docview.wss?uid=nas10e8e5c53c67ad9ab862565c2007cec48

Historical Number

658567239

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of John McKee
Sent: Monday, July 14, 2014 2:37 PM
To: Midrange Systems Technical Discussion
Subject: Re: Journal receivers

It has been IPLed within the last six months. I am drawing a blank on where the last IPL date and time is stored. I remember doing it to complete the PTF process (Server IPL required).

John McKee


On Mon, Jul 14, 2014 at 12:19 PM, Monnier, Gary <Gary.Monnier@xxxxxxxxx>
wrote:

When was the system last IPL'd?

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
John McKee
Sent: Monday, July 14, 2014 9:07 AM
To: Midrange Systems Technical Discussion
Subject: Re: Journal receivers

Based on attach date of 07/12/06, I would not think so.

John McKee


On Mon, Jul 14, 2014 at 11:02 AM, Monnier, Gary
<Gary.Monnier@xxxxxxxxx>
wrote:

Is it possible the numbering has rolled over?

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf
Of John McKee
Sent: Monday, July 14, 2014 7:48 AM
To: Midrange Systems Technical Discussion
Subject: Re: Journal receivers

I presented insufficient information. I thoughht the question was
so common that details would have been tedious.


from WRKJRNRCV:
Journal: QDBJRNXRFQ
Receiver: QDBJXQ0001
Attach date: 07/12/06
Size (K): 286884

No detach or save date.

from WRKJRNA:
Manage receivers: *SYSTEM
Delete receivers: *YES

What drew my attention was that the journal receiver was 0001.

Something is odd. Is there a system value that is potentially wrong?

Thanks,

John McKee


On Sat, Jul 12, 2014 at 8:23 AM, CRPence <CRPbottle@xxxxxxxxx> wrote:

On 11-Jul-2014 14:22 -0500, John McKee wrote:

<<SNIP>>

Looking at other journal receivers, I see a few large ones in
QRECOVERY. Specifically, QDBJxxxxxx and QSQJRN0391. Biggest is
QDBJXQ0001.


I do not recall specifically the latter naming, but I am almost
sure I recall what the associated journal is for; the *DBXREF
queue
(QDBXREFQ*
x/0AC4) journaling. With the associated Journal (*JRN) name,
finding [if there is any] more specific documentation\information
would be
easiest.

Is there a process that is supposed to be run to detach these
receivers, or is that just done manually?


Each journal environment for which those [system] receivers are
established, should include the Manage Receivers (MNGRCV) setting
of *SYSTEM and the Delete Receivers (DLTRCV) setting of *YES;
refer to the Work With Journal Attributes for the *JRN associated
with each of the noted\named Journal Receiver (*JRNRCV) objects.
Thus there should be only one journal receiver object that is
active\attached per journal
object.
The maximum size of the journal receiver before deletion will be
determined by the Receiver Size Options of the journal and the
Threshold attribute of the journal receiver; see the Display
Journal Receiver Attributes (DSPJRNA) for the threshold and the
associated
Journal object.

Note that the QRECOVERY library is omitted from the Backup phase
of B&R [thus effectively, the origin for the system library name
prefix paired with the word "RECOVERY"].

With the default journal environment, the request to Change
Journal
(CHGJRN) to request attaching a new generated-name or an
explicitly named journal receiver will enable reducing the current
storage for a[n at least partially] full receiver to the storage
of an empty receiver. For example, the request to CHGJRN
QSYS2/QSQJRN
JRNRCV(*GEN) would effect a new empty receiver with the next
receiver name and the previously attached receiver would be
detached and deleted. Of course, over time, the receiver will
again fill-up approaching the maximum allowed size before
system-managed change to a
new receiver.
Although the journaling environments could be customized [from the
defaults], normally that would only be done to enable problem
investigation or to circumvent a problem with any negative effects
per
the defaults.

--
Regards, Chuck
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