In the last post we scheduled 24-hour collections of performance metrics using pButtons. In this post we are going to be looking at a few of the key metrics that are being collected and how they relate to the underlying system hardware. We will also start to explore the relationship between Caché (or any of the InterSystems Data Platforms) metrics and system metrics. And how you can use these metrics to understand the daily beat rate of your systems and diagnose performance problems.
Is there something in Cache that is equivalent to partitioning a table in Oracle? I'm trying to break some big tables into groups so that the most frequently accessed data is faster to retrieve.
Here is some information on this concept from Oracle.
I need to offer new users on our system a temporary password that is valid for only 48 hours. This is different than a 60-day password expiration window for existing users' passwords (where a password needs to be changed every 60 days), and is different than a "user expiration date", where you can set a date where the user's account expires and is disabled on that date, and different than the inactivity expiration date where a user becomes active if his account is not used within, say, 30 days.
This is the first article of a series diving into visualization tools and analysis of time series data. Obviously we are most interested in looking at performance related data we can gather from the Caché family of products. However, as we'll see down the road, we are absolutely not limited to that. For now we are exploring python and the libraries/tools available within that ecosystem.
Does anyone know if a process (which is using a license unit) does an OPEN or USE to send data (to a label printer as an example) through TCP, will result on license slot usage?
If so, will use a new connection of the currently used one by the process or will get a new slot?
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?
most of my jSON data is single words, but when it comes to sending chunks of a memo/email via JSON, that totally different
which is the correct conversion process to prepare data ready to insert into the data part of a JSON string so that all problem characters are converted
JSON of course crashes if you use the wrong format of quotes (single or double) and you ned up having to use " and \' to get around that but is there a simple call to something that will just take care of preparing the data from the JSON string both on the inward and outward part of JSON
I created an %Net.SMTP object in my project , but when i call it's "send method" i don't find it inside the created SMTP object, so i can't also send my mail.
I created a few classes and one class called jitPod.Api.toServer.additionalConsignments and realised even before I did any work,, that the word "Api" (note capital A) needed to be "api" (all lowercase)
it would not allow copying the class to the lowercase name because the directory already exists (i understand that)
so I exported the class to an XML, edited the xml to become lowercase "api" , deleted all the classes (and directory name) and re-imported the class.
I have a ZEN report set up to generate a file for loading to into excel (see attached). Even though I have DEFAULTMODE set to "excel" the resulting output file that I get on one CACHE instance is .xml while on another it is .xls. This is even though I run the report from the two instances on the same PC. Can anyone suggest what I am doing wrong? The Cache version is "Cache for UNIX (IBM AIX for System Power System-64) 2013.1.6 (Build 950_1) Fri Jun 6 2014 17:43:51 EDT"
I came across How to import a tab separated text file into a SQL table programmatically?, which appears to indicate that I can pass the filename and all records will be imported. However, when I put use the Import method only a single record gets imported. However, all records are imported if I use the management console to import the file by selecting it and choosing the options.
I am new to cache. idx is a language for cache database? we have cache database on aix and planning to move to linux, but i was told only aix is supported since idx only works on aix. can someone help me to understand?
I am new in Cache. I have to update a record with a long text field, for that, I am using ODBC but the issue is that it is returning an error when I execute the ODBC SQL statement because the field contains some commas, colon, double quotes, single quotes, and CR LF characters.
There is a way to escape this chars? I have seen I can save the field when I replace the single quotes with a double single quote (it's -> it''s) but I can not save the information when the field contains double quote chars. What about the other chars?
I'm getting <WIDE CHAR> error in one of my routines, I was thinking a corrupted data or disk out of space or no mount database but all seems to be OK?
I'm running Cache 2014.1.2 and the same routines and data works in our client main server with not problems but having the same copy in their backup server is generating <WIDE CHAR> error, some other reports works but this specific doesn't?
Hi I currently have a requirement to upload microsoft documents from a client's PC to a cache database, at present the idea is to use javascript to open the file and convert it to a binary stream and then for cache csp to upload the binary stream to the database. Just wondered if anyone else had attempted this or are there better options !
While I'm working in Studio, every now and then, the menu bar gets "unglued" and becomes a window of its own outside of Studio.
Is there a setting that prevents this from happening?
Also, if I happen to close Studio while the menu bar is "loose", the menu bar remains missing when I open a new Studio Session. Is there a way to get the menu bar back in such a situation?
Windows 7 and some other Microsoft Operating Systems can shutdown too fast for large applications, such as a Cache instance with a large amount of data and changes, to close gracefully.
i've been trying to setup a copy of our production server so we can use it for testing/development.
i did a full backup. moved it to the new server. ran the DBREST command. got it to restore but seems like permissions get all messed up. and it just generates a bunch of errors.
I need to perform some processing-heavy operations on a set of input objects and I would like to utilize more than a single processor core to do the heavy lifting.
Is there any way to call methods in parallel and wait for the results in a blocking way?
Basically, I am looking for an equivalent of the pythonese
with Pool(n) as p: results = p.map(function, data)
By update
