#Journaling

Just wondering if anyone knows if there is a way to get daily emails or alerts about changes to a cache database.  I know that all of that information is contained within the journal files, just wondering if there is a way to bundle it up each day and send it off for auditing, etc.

Any solution where a plain-text/readable format of changes to the cache database could be sent or stored for review would solve the issue.

Thanks!

The steps are as follows：

1. create global

 For I=1:1:200 Set ^ABC(I)=""
 For I=1:1:200 Set ^XYZ(I)=""
 For I=1:1:100 Kill ^ABC(I)

2. create ZJRNFILT

ZJRNFILT(jid,dir,glo,type,restmode,addr,time)    /*Filter*/
  Set restmode=1                                  /*Return 1 for restore*/
  If glo["^ABC",type="K" Set restmode=0           /*except if a kill on ^ABC*/
  Quit
  ;

3. restore

s RestOref=##class(Journal.Restore).%New()
s RestOref.FirstFile="20190717.007"
s RestOref.LastFile="20190717.007"
s RestOref.JournalLog="journal.log"
s RestOref.Filter="^ZJRNFILT"
s Status=RestOref.Run()

but the result do not

Hello, community!

I've stumbled on some unexpected behavior, and decided to check with you if this is normal. Basically, I'm rebuilding indices and the result is not journaling (which leads to missing indices at shadow server).
The $ZV is "Cache for UNIX (Red Hat Enterprise Linux for x86-64) 2015.2.1 (Build 705U) Mon Aug 31 2015 16:53:38 EDT"

I have an example class 

Class tmp.A As %Persistent;

Index IP1 On P1;

Property P1 As %String;

for example there is one object which have P1 = 1, so

^tmp.AI("IP1",1,1) = ""

If I rebuild it wth 

zw ##class(tmp.A).%BuildIndices(,1)

the weird thing is the 

Kill

Hi,

We have Mirroring established between NODE 1 & Node 2 . We have set the "cachesys" database enabled for Journalling. But we dont see the User Accounts , Roles, Resources created on Node 1 ( favoured Primary) reflected on Node 2 . Is creating them manually again is the only option for this ? . Is there any way to sync them or would adding %SYS to MIRROR a possible solution. Would it be great if anyone has faced this as we have an issue that during failovers Team is locked out . 

Best Regards,

Arun Madhan

I'm working on a task where I need to apply journal file records to another database. I can't use Journal.Restore class methods as I need to perform some data transformation, therefore I'm reading journal file record by record using %SYS.Journal.Record API.  

It seems that there are only few journal records that I need to process, namely:

Type TypeName
6    SET
7    KILL
8    KILLdes
9    ZKILL
10   RemoteSET
11   RemoteKILL
12   RemoteZKILL
14   BitSET

No problem, while I'm just curious: which COS command could provide KILLdes record? I've met it only once in the context like this:

KILLde

In System Administration | Configuration |  System Configuration | Journal Settings there is a check box for Freeze on error.

From reading the documentation, it sounds like the choice to freeze on error is one of system availability vs system integrity.

Curious to know whether Ensemble users choose to freeze on error or not.

If you have a best practice recommendation based upon your experience or knowledge, that would be helpful information too.

Question:

My journal files are growing  rapidly - what could be the cause? How can I minimize the phenomena?

Currently, we are running 2014.1 on two different servers (OpenVMS, RHEL). The plan is to transition from OpenVMS to RHEL, but our Write Daemon is in a Troubled state on both servers.

On the OpenVMS server, we have a WIJ file that's 26G and can grow to 40G (size of database cache). Since it hasn't grown to 40G, we don't believe the size of the WIJ file to be the issue.

What else should we be looking at regarding the performance of the Write Daemon?

I am pleased to announce that Release Candidates of Caché and Ensemble 2017.2 are now available.

Many customers have already downloaded the Field Test over the past few months, and we appreciate your feedback.

This release contains significant improvements, including:

• Parallel dejournaling to improve throughput of mirroring and journal restore.
• New iFind and iKnow features like co-occurrence search, performance improvements, and more.
• SQL enhancements in Query Auditing, optional ANSI SQL operator precedence, and Frozen Plan Evolution, along with our normal cast of query optimization improvements.
• En

I'm purging a lot of management data from an Ensemble production, which is creating 100s of GBs of journals. Has anybody succeeded in disabling journaling on an Ensemble purge? The user interface doesn't have an option for this, but I'm thinking you might be able to identify the process and externally disable journaling on it.

Hi Everyone,

Link to webinar recording: https://learning.intersystems.com/course/view.php?id=623

Thank you for your interest in this webinar!

Please submit questions about the content of the webinar as comments below this article.

The webinar covers two topics: monitoring message activity and volume and monitoring disk space. I summarize and motivate the topics in the following two sections. The information in this webinar and post applies to the Ensemble, Health Connect, and HealthShare products. For simplicity, I am only going to refer to Ensemble in this post.

1) Monitoring Message Activity and

One of my journal spaces has status "IOER" in MSM MUMPS.

I think this is happend during system freeze.

I never seeing a journal file status like that.  I did not find anything about it in the intersystems documentation.

I can simply delete the damaged file, but I'd like to know how to prevent this from happening.

Anyone have some idea about it?

My MSM-UNIX Version is 4.4.0.

Thanks

We are finally planning to migrate some ancient Caché applications that are run on Caché 5.0.21 to a new server with Caché 2016.2.0 or so.

I wonder if we could use Shadowing between those to keep the data on the new server up to date?

We would copy the Caché backup from the old environment to the new and do a RESTORE there and then start shadowing.

I know than 5.0.21 is no more officially supported by ISC.

Following my previous post, some urged me to get to the point – ok, so I found my "star" journaling globals, the ones that take up the most space – but how do I avoid this? How do I minimize the journal's size?

[DISCLAIMER: Some might still be disappointed after this post as well  but wait till the next one... ]