I need help around triggers and using user macros in them. Using zabbix 3.4. I have a host and it has macro called '{$CLASS_A}'
I want to setup a Trigger that goes off when {$CLASS_A} = "HUGE" and free memory is less the 5G.
{my_test_server.vm.memory.size[available].last()}<5G
Can I not just do:
{$CLASS_A} = "HUGE" AND {my_test_server.vm.memory.size[available].last()}<5G
I can not see what I should be doing to get this to work. Any help would be great.
The "and" operator is case-sensitive and should be lowercase.
The macro usage is incorrect as well: you can use a macro on the right portion of the expression (see here for more), like:
{ca_001:system.cpu.load[,avg1].last()}>{$MAX_CPULOAD}
You can modify your current trigger to:
{my_test_template:vm.memory.size[available].last()}<{$MAX_MEMORY}
then define {$MAX_MEMORY} both on the template and the host: the template macro value will act as default and you can ovverride it with a host macro.
Related
I need to automatically generate a 12 character value for my Business Key. Without any user interaction.
8 character -> Today Date (yyyymmdd or ddmmyyyy).
+
4 character -> Sequential Number (0001,0002,0003).
The Sequential Number must reset on each new day.
Is it possible to do this in Microsoft Access 2010+ without any coding involved?
Since you are using Access 2010+ the best way to accomplish your goal would be to use a Before Change data macro like this
To create the Before Change macro, click the "Before Change" button on the "Table" tab of the ribbon when the table is open in Datasheet View:
For more details on Data Macros see
Create a data macro
Good question, thanks for the challenge!
After some search, it seems it's possible to do that.
You can prefix the AutoNuber value by processing like the explanation available here: http://www.databasedev.co.uk/add_prefix.html
You can try to specify in the format of the field a format(now(),"ddmmyyyy").
Check this page for more informations, another user seems to have the same problem and got a solution: http://bytes.com/topic/access/answers/695188-custom-made-autonumber-show-todays-date
Hope it's helping you!
Newbie question. I believe this is one of the most common errors. I found several of them on msdn forum itself but probably there are many ways on achieving this error? Please help.
I am trying to move and rename some images from one folder to another (and yes I have seen the blog by Rafael Salas and many others but none of them helps).
Like moving from \server1\images\123-456.jpg to \server2\images\123456.jpg
I am using a foreach.
Source variable is built dynamically. In the first iteration #imagePath = \server1\images\123-456.jpg ( i checked using messagebox.show)
I have defined #remoteImagePath = \server2\images\ (which never changes) and #revisedImageName = 123456.jpg (built dynamically in script task using string replace - also checked using messagebox.show)
In FileSystem Task, I am using SourceVariable as #imagePath and using Expressions to define Destination as in #[User::remoteImagePath] + "\" + #[User::revisedImageName]
Dont know for what reason, I am getting this error
Failed to lock variable "\server2\images\123456.jpg" for read access with error 0xC0010001 "The variable cannot be found. This occurs when an attempt is made to retrieve a variable from the Variables collection on a container during execution of the package, and the variable is not there. The variable name may have changed or the variable is not being created.".
Set the IsSourcePathVariable to True and set the SourceVariable to a SINGLE variable.
If you use the expression editor to set Source using multiple variables, or anything else apart from a SINGLE variable it will not work. If you want to concatenate hard-coded strings to variables, or multiple variables, do this by creating a new variable in the package, and use the Expressions tab in the variables tab to build the variable as a single variable.
I believe expressions editor needs syntax
#[User::remoteImagePath] + "\\" + #[User::revisedImageName]
SSIS newbie question:
I have found different usages of a user variable and hence the confusion.
I have defined a user variable customerName.
In some places, (e.g. Script Task Editor's ReadOnlyVariables, it being referred as User::customerName since there is no option to select customerName.
Then in Script Task (Edit script), I see that its being referred as
string custName = Dts.Variables["customerName"].Value.ToString();
and not as
string custName = Dts.Variables["User::customerName"].Value.String();
Where and how does this work? Is there any rule?
Either syntax should be acceptable in a script task. To further complicate matters, you could also reference it as string custName = Dts.Variables[0].Value.ToString();
The User bit refers to the namespace of an SSIS Variable. By default, you can access Variables in the System and User namespace but nothing prevents you from creating variables in a different spaace.
You're also going to run into #[User::customerName] syntax.
I currently deployed an SSIS package (Developed on the 2005 version) (developed on my local server) in a pre production environment for testing. I have used the Row count transform to get a count of good/bad records. It works fine on my local system . However when i deploy this on the pre prod server, the row count does not work! (as in it does not recognize the vairbales i have assigned to the relevant transofm - no drop down abvaliable in the variables attribute part. tried deleting and adding a new transoform.. no luck.
Strangely this does not work for any of the other packages also present/deployed on the same server (tried this out by dropping an rc tramsform onto an existing package... same problem)
Any suggestions?
Thanks a tonne
If you are having problem with the row count transform, another alternative that we use here at my company is creating a script component and incrementing a rowcnt variable by one. The performance is just as good-just add this code:
Public Overrides Sub PostExecute()
MyBase.PostExecute()
Me.Variables.rowcnt = Me.Variables.rowcnt + 1
End Sub
This certainly seems odd. Are you saying that when you are in the Advanced Editor for Row Count, under Custom Properties, that the drop down beside VariableName has no options? You should at least see all of the System:: variables.
If the User:: variables are not listed, my first suspicion is that they do not have the correct scope to be visible in the Data Flow Task where you have your RowCount.
When you go up to the Control Flow, and get the Variables list, do you see your user variable there? What is the scope of it?
Note that I recognize that none of this fits with "it works locally but doesn't work when copied to the server", but it is at least where I would start...
In Reporting Services I would like to add a parameter that contains data from a custom code block. Ideally, I would be able to run the following code (this is a simple testing example):
Function GetPeriods() As String()
Dim values As System.Collections.ArrayList =
New System.Collections.ArrayList()
For i as integer = 1 to 24
values.Add(i)
Next
Return values.ToArray()
End Function
and put the following in the "Text Field" of the parameter:
=Code.GetPeriods()
However, when I run the report, the parameter I apply this to is disabled and empty. Is there a different technique that should be used? Or am I doing something wrong?
If you're using SQL 2008 Reporting Services then you can have a look at this page which introduces the concept of using custom assemblies.
If you're using SQL 2005 Reporting Services then this link is the one you want.
It's a mostly trivial thing, simply compile your code into a class library and follow the instructions provided to allow your report to reference it.
You are returning an array item (an array of strings) into a text field. Instead, try returning a plain string. That should work. If you would still like to return an array list, you must basically bind it to a list control in your RDL. You can definitely do that with dataset extensions. However, I am not sure if there is any other easy way. Check the proprties of the list control and see if it allows you to directly bind to an array list.
You can create the same stored procedure on SQL Server and load parameter values from that procedure.
To access your members/functions implemented in custom code of SSRS report you should set the access modifier to "Public":
Public Function GetPeriods() As String
...
see article Writing Custom Code in SQL Server Reporting Services
I've been trying to do this same thing, set a simple list of parameter values from report code. None of the links in any of these answers shows how to do this and after quite a bit of digging around I don't think it's even possible. Yes it is possible to get the values from a database query, from a web service, or from a custom assembly, but each of these creates a lot of overhead compared to getting the list from a simple function call like =Code.GetValues(), where the function uses a For loop to create the values.
msvcyc is correct in pointing out that the parameter is expecting a string value, but the function is returning an array. I changed the return type to Array as suggested by prashant sable, but the select list is still grayed out, it does not work. And coldice is correct in saying that the access modifier should be Public.
In my digging around I found an article by James Kovac from 2005 that pointed out why this is not possible. The Parameters class has a get method, but no set method. In the VS 2008 object browser for SSRS 2008 the object name has changed, but it still does not contain a set method (see Microsoft.ReportingServices.Interfaces.IParameter.Name or .Value).
My current workaround is to just hard code the list of values, but if your value list needs to be dynamic then your only choices are database queries, web services, or custom assemblies. I think the easiest workaround of these three is to get the values from the database engine, as suggested by oleksiy.t, as long as you can write a query to return the value list you want. Your list of integers, or my list of time intervals, would both be easy queries to write. Otherwise you will need to use one of the other two workarounds.
I checked your code. The only thing that's wrong is your function returns String(). When I changed your method signature to return Array, it worked fine, in my report.
Change the signature to Function GetPeriods() As Array
Everything I've seen requires parameters and their respective settings to be part of the RDL.
That being said, if you're going to "hardcode" the values, you could create a dataset just for the report, perhaps in XML, or if it needs to be programmatically driven, do it in a web service.