This is the third article (see Part 1 and Part 2) where I continue to introduce you to the internal structure of Caché databases. This time, I will tell you a few interesting things and explain how my Caché Blocks Explorer project can help make your work more productive.
Often InterSystems technology architect team is asked about recommended storage arrays or storage technologies. To provide this information to a wider audience as reference, a new series is started to provide some of the results we have encountered with various storage technologies. As a general recommendation, all-flash storage is highly recommended with all InterSystems products to provide the lowest latency and predictable IOPS capabilities.
The first in the series was the most recently tested Netapp AFF A300 storage array. This is middle-tier type storage array with several higher models above it. This specific A300 model is capable of supporting a minimal configuration of only a few drives to hundreds of drives per HA pair, and also capable of being clustered with multiple controller pairs for tens of PB's of disk capacity and hundreds of thousands of IOPS or higher.
I'm creating a new namespace by the installation manifest XML and in the "database" tag configuration I don't see attribute to configure if I what jounal globals or not to this database.
In the database wizard of the "portal administration", have this option.
I was approached recently by and end use who wanted to perform analysis of their databases and see how they could save some space by picking data good for deletion without harming the application. As part of investigation, they wanted to know sizes of globals within datasets. This can be achieved by various means but all of them provide data in text form only.
I thought I might be a good tool for database administrators in general - to see global sizes in a graphical way.
The use of the InterSystems Virtual IP (VIP) address built-in to Caché database mirroring has certain limitations. In particular, it can only be used when mirror members reside the same network subnet. When multiple data centers are used, network subnets are not often “stretched” beyond the physical data center due to added network complexity (more detailed discussion here). For similar reasons, Virtual IP is often not usable when the database is hosted in the cloud.
Network traffic management appliances such as load balancers (physical or virtual) can be used to achieve the same level of transparency, presenting a single address to the client applications or devices. The network traffic manager automatically redirects clients to the current mirror primary’s real IP address. The automation is intended to meet the needs of both HA failover and DR promotion following a disaster.
I am working with a client to try and export a set of tasks defined in the Task Manager from one system to another. I am not seeing any API for this. I can query this information in SQL. So I tried to use the Data Export Wizard from the System Management portal in the SQL window. Export was fine. Importing failed with a "can't insert into read only field" error. Looking at the class definition does not help since the implementation details are not visible.
So how would one accomplish this? Export scheduled tasks from one system to another?
Hi guys, I'm helping one of our customer to use unattended install to standardize their deployment. I'm using Unattended Installation and Installation Manifest.
Although I can use the combination to install HealthConnect and then create namespaces and DBs as they need, there are still several tasks that I did not find the solution yet. As following:
In old Caché versions it was possible to create a new role based on predefined %Developer by copying it and adding some resources as needed. It was true at least from 2010.1 to 2015.1.
After upgrade from 2015.1.4 to 2017.2.1 it turned that it's only partially true now. User with a "New-Developer" role can enter Studio and open existing cls/mac/etc for editing and everything is OK unless he tries to create something new (Ctrl-N), than he gets a pop-up with %msg: <User xxx does not have enough privilege to execute stored procedure %CSP.StudioTemplateMgr_Templates>
I want to create an interface specific purge job. Please let me know if there are any holes in my approach. I realize that an interface that went from HospitalAService to HospitalARouter to PracticeBOperation would require two separate executes in my example below, but I want that granularity as there are some intermediate steps in our workflows that we don't need to retain messages for.
In this series of articles, I'd like to present and discuss several possible approaches toward software development with InterSystems technologies and GitLab. I will cover such topics as:
This is a sample Ensemble/Health Connect production which demonstrates how to receive an HL7 order (ORM) inbound from a file, extract fields (in this case, basic demographic information), and insert those into a table in an external SQL database via ODBC.
On documentation, this ^ISCSOAP^is log to service SOAP, but why send to cconsole.log?
04/04/18-01:00:00:597 (10608) 2 ^ISCSOAP in Namespace %SYS has been active for 348 day(s). 04/04/18-01:00:00:598 (10608) 2 ^ISCSOAP in Namespace X has been active for 165 day(s).
I'm pleased to see this in the documentation of the just-published 2017.1 Field Test of Ensemble:
"In certain circumstances, it is useful to create namespaces that are not enabled for Ensemble. In this release you can do this by clearing the Make this an Ensemble namespace checkbox when creating a new namespace. "
By update
