IIUG Conference 2018

Looking forward to meeting in Washington DC next October!

Monday, October 30, 2017

New features in Informix 12.10.xC9

I am stoked! HCL has released the first update to Informix Dynamic Server developed under their auspices. There are two significant new features in the .xC9 release, one is an enhancement to how time series and spatial data work together that adds significant performance and utility to that feature and the other is a completely new feature that users have been asking for for years. I will cover them in order:

Track Location and Time Together

STS_SubtrackCreate() function which creates the "subtrack" table over which the spatiotemporal  index is created. That done the STS_SubtrackBuild() function populates the subtract table and builds the initial index contents. Spatiotemporal indexes are relatively static, however you can configure the Timeseries such that it automatically updates the index when data elements are added to the Timeseries record.

The biggest change in the .xC9 release is improved time granularity of the spatiotemporal data making it easier to search and locate allowing new searches that answer "When was an object in a specified area?" "What objects were in this area at this time?" "At what time were there some objects in this area?"

Applications to Receive Asynchronous Notice of Data Changes 

Client applications can now create Smart Triggers that register them to receive notification when there are changes in a data set. The API uses SELECT statements and WHERE clauses to identify which specific data each application is interested in, and an application can register to receive push data from multiple source tables. Once registered the server will push new and modified data from the server to those clients interested in those specific rows. 


Because the client applications do not have to poll the server looking for new data, greater scaling and responsiveness is achieved by those apps. At the same time the database server's parallel architecture can feed the data to all clients by asynchronously reading logical log file changes. This design lets client applications scale linearly without adding significant overhead to the database server. Since the changes are scraped from the logical logs asynchronous to the session threads actually modifying the data, by using the Enterprise Replication log scraping threads, there is no performance effect on the OLTP applications that are making the changes to the database.

Previously you might have emulated this behavior using insert, update, and delete triggers on the tables that called to a C or JAVA library function, but the process of trapping the trigger and sending data synchronously would slow down the front-end transactions causing potentially serious scaling and concurrency problems for applications.Registering is fairly straight forward and is documented in the Enterprise Replication Guide. Basically you call a registration function passing in a BSON record containing fields defining the table you are registering for, a SELECT statement with an appropriate WHERE clause to filter the rows you are interested in, a label you want to use to distinguish data blocks from one table from those originating from another, a timeout setting, the number of elements you want to receive in each message, how many messages to allow to queue up, and the earliest transaction time you want to receive data updates from.I am particularly stoked about this one because I think it will be key to the success of a new project I am working on for a client. Perhaps when it is all finished I will be able to get permission to talk about it.

Going Forward

There has been a long gap since my last post. I apologize. I have not been ignoring the community nor have I given up on Informix as some have suggested and gone off to do other things. On the contrary, the main reason for my silence is that the past year has been my busiest in a long time. If I ever entertained fears that Informix is dying this year would have put those to bed for me for sure. I have seen one client upgrade their servers to the latest releases three times. Two clients implement IWA successfully. One going from Proof of Concept to production in four months and in the process saving over a million dollars over the alternative free "open source" solution while exceeding the predicted performance the "other" solution promised! The other implemented a new vertical product for the industry that it serves that will allow their customers to perform more detailed analytics in less time with fewer resources.


I have spent several months helping another client expand their use of Informix throughout their organization through which effort they were able to improve the timeliness and reliability of the services they provide to their customers and so to their customers customers among whom are counted many reading this post (including me). So, you are welcome. 

One of my current projects, mentioned in passing above, is very different for me and has me excited because it is allowing me to do some database design. That's one of the more fun things I do. Recently performance tuning, installations, training, and feature implementation have taken up my time and I haven't had the opportunity to work on a design project in a while. Enjoying the change. 

IIUG Update

I just returned from the IIUG Board of Directors fall meeting. This year we met for the first time formally with HCL executives and development management. Some of you may have been dismayed by the Editorial in the recent IIUG Insider. I have to report that the feedback from HCL in response to Gary's concerns was overall heartening. It seems that mostly HCL didn't think it was important to keep the IIUG informed. There are new things in the queue that the Board members will be able to discuss publicly as soon as some outside hindrances to roll out are overcome. There is exciting news pending for market segments that previously could not take advantage of Informix. That's about all I can say for now, but hopefully the news will be released in time for the next Insider. Although Murphy is probably working hard to cause it to miss Gary's deadline by a day B^(


Stay tuned there is lots happening in the Informix world. And don't forget to start working on getting permission to attend the IIUG World 2018 conference in Washington DC in October 2018!


Wednesday, May 3, 2017

A new era for Informix begins now!

I returned from last week's International Informix Users Group Conference with some news. What kind of news it is I am not 100% certain. I am certain that it is BIG news. I am certain that it affects most of us in one way or another. I am not certain whether it is good news or bad news for the Informix user community or same-old same-old. I have been saying since I heard it that I am guardedly optimistic that this is good news.
For those of you who have not heard, IBM and a company called HCL have partnered to "jointly develop and market the Informix family of products". IBM has licensed the intellectual property rights for all Informix products to HCL for a period of at least 15 years with options for renewal. As part of the deal IBM will retain ownership but HCL will be responsible for developing the products and for tech support. Indeed HCL will be hiring all Informix developers and support personnel who are willing to make the change. (My understanding is that so far all US Informix developers and support people have agree to sign up and tentative offers have been made to the Informix folks in Europe and Asia pending government paperwork in those areas.) HCL will also be free to market and sell Informix as well as to develop "derivative products". Decisions about the product life cycle and roadmap will be made by IBM and HCL together.
What does this mean for existing customers? Immediately not much. You will still be able to renew your support and purchase additional Informix licenses from IBM. You will still call the same support phone lines or use the same online support portal. The technicians responding will simply be HCL employees and likely the same people you have been dealing with all along.
This is a link to a LinkedIn post by Mattias Funke Director Core Database & Data Warehouse Offering Management & Strategy at IBM explaining the deal:  https://goo.gl/CY4nyO
HCL is a global consulting and IT software group headquartered in India with locations throughout the world. Their Product and Platform business unit which was started in September is based in New York and will manage the Informix products in addition to their own product lines which concentrate on IOT, embedded systems, and cloud computing. These are all strengths of Informix and explains HCLs interest in the partnership. 
In discussions with their executives at the IIUG Conference we were told that HCL is very interested in focusing their own products on working with Informix and in making Informix THE player in the database market. 
IBM's internal politics have always prevented IBM from fully embracing Informix for the market leading database that it is and this has encouraged much of the FUD intimating that Informix is a dead or dying product. HCL has no such constraints on it. Someone said at the Conference "the gloves are off!" We may even see advertising about the benefits and features of Informix. I am hopeful. The Informix community will be waiting to see how HCL follows up on these opportunities and promises and how this changes the marketplace for Informix.