I am running a Data Lake - Analytics job and I getting the below error
ERROR VertexFailedFast. Vertex failure triggered quick job abort.
Vertex failed: SV1_Extract[0][0] with error: Vertex user code error.
DESCRIPTION Vertex failed with a fail-fast error
Does anybody know why this happens?
You cut off the error message part that actually tells why your extraction failed.
If you use a built-in extractor, it may be because you fail a data type cast, you have incorrect numbers of columns (for a variety of reasons) etc.
If you use a user defined extractor, it could be because of any C# runtime error that the user code generates.
Related
I'm using columns of type "geography" for some few "point within polygon" queries. They are too few and too simple to bundle a GIS gem, I handle it all on the SQL level.
However, every time Rails boots (rake tasks, console etc), the following warning is spit:
unknown OID 17227: failed to recognize type of 'geography'. It will be treated as String.
I'm fine with "geography" being treated as "String", but the warning triggers warning mails every time a cronjob executes any rake task.
Any idea how I can silence this warning?
Thanks for your hints!
Looking at the source of ActiveRecord, I can answer the question myself:
The warning is hardcoded and therefore can't be silenced by AR configuration. However, RUBYOPT=-W0 gets rid of warnings altogether. This is a big chopper of course, but since I'm still getting those warnings in local development, I can live with a totally warning-less production system.
Since this is the first question/answer that appears given that the title is the error, I would recommend following this answer to fix it: What is the source of "unknown OID" errors in Rails?
I call some matlab scripts from a simulink model, these use assert(). When an assertion fails, simulink gives me a completely useless assertion, without any details about which sub-system or script the assertion occurred in, let alone the line number:
An error occurred while running the simulation and the simulation was terminated
Caused by:
An error occurred during simulation of Model block '<blah>/Model'.
Assertion failed.
However, this is just a model block, it contains many sub-systems and script blocks and stuff.
Any hints on how to find which of my many assertions was triggered?
Not sure it matters, but all of these scripts use the %#codegen tag.
assert() supports custom error messages:
assert(cond,msg) throws an error and displays the error message,
msg, if cond is false.
assert(cond,msg,A1,...,An) displays an error message that contains
formatting conversion characters, such as those used with the MATLAB®
sprintf function, if cond is false. Each conversion character in
msg is converted to one of the values A1,...,An.
assert(cond,msgID,msg) throws an error, displays the error message,
msg, and includes an error identifier on the exception, if cond is
false. The identifier enables you to distinguish errors and to
control what happens when MATLAB encounters the errors.
assert(cond,msgID,msg,A1,...,An) includes an error identifier on the
exception and displays a formatted error message.
Since you have access to the scripts being run, you can update them to include verbose error messages.
For example:
>> assert((2+2) == 5)
Assertion failed.
vs.
>> assert((2+2) == 5, 'The rules of The Universe still hold')
Some rules of The Universe still hold
I'm used to working with SQL database, I'm new to Realm and, so far, I'm really impressed by the ease of use of this new mobile database.
But there is something that I really don't undestand: how to handle error throwing?
Take this simple example:
I want to store in a Realm DB some market stocks.
Each stock has a "symbol" as a unique identifier: APPL for Apple Inc, TSLA for Tesla Motors Inc, etc.
I believe it would make sense to declare these symbols as primary keys, since it's not possible to have multiple times the same symbol in the database
When user clicks on a symbol (among a list of symbols), this symbol is saved in db.
In this Raywenderlich tutorial, it is said: "To simplify the code required in this tutorial, you’ll be used try! when calling Realm methods that throw an error. In your own code, you should really be using try and do / catch to catch errors and handle them appropriately."
So according to the following pattern:
do {
try realm.write {
realm.add(symbol)
}
}
catch let error as NSError {
print("Something went wrong: \(error.localizedDescription)")
}
So far it makes sense.
And if a user clicks on a symbol that is already in the database, I get (very logically) an error:
*** Terminating app due to uncaught exception 'RLMException', reason: 'Can't set primary key property 'symbol' to existing value 'APPL'.'
The problem is that this error is not catched during run time: I've got a crash instead.
My question is not about how to avoid such a crash, I understand of course that it's easy to avoid it by doing a simple testing before writing anything in the database :)
My question is how do we do in Realm to catch potential writing errors?
Am I doing something wrong?
do/try/catch in Swift catch Swift Errors, which are an entirely distinct thing from Objective-C exceptions. Realm follows Foundation's pattern for error reporting: API misuse errors throw exceptions which are not intended to be caught (and can't be caught in Swift), and recoverable errors throw Swift errors (or use NSError out parameters in Objective-C).
Adding an object with a duplicate primary key is considered API misuse, so it's a fatal error as the route for "handling" it is to fix the bug in your code. An example of a recoverable error which would produce a Swift error that would be caught by catch is running out of disk space while trying to save the new data.
There are two distinct types of error: programmer error, and expected errors. Realm handles these two types of errors differently.
Programmer error covers cases such as accessing objects from incorrect threads, out-of-bounds collection access, attempting to insert an object with a duplicate primary key, and so forth. Realm responds to these programmer errors by throwing an Objective-C exception. These exceptions are not intended to be caught and handled as they're indicative of a bug in a Realm user's code.
Expected errors cover things like files not existing, permission errors, failures to write to disk. These are things that can happen even with correctly-written code due to factors outside of the programs control. These are exposed as NSErrors and can be caught from Swift using do / try / catch. Note that Realm's Objective-C API has some convenience methods that don't expose the NSError. In these cases an expected error will throw an exception as there's no other avenue for Realm to communicate the failure. Rather than attempting to catch and handle exceptions raised by these convenience methods, you should use the variant of the API that returns an NSError instead.
Hi, the error line said "to existing value", don't you try to write more than one time the same primary key with 'APPL' ?
you need to update it, not override.
if you try to "add" again the same value, it's gonna stop you.
(sorry for bad english x) )
I got the following runtime error:
2014-12-10 19:26:39.695 Bliss2[21855:994070] Error: object not found for update (Code: 101, Version: 1.5.0)
I assume the [21855:994070] has a meaning.
How do I use it to track down the error in the code?
That is not a "runtime error". It is an NSLog message and has been executed and logged in perfectly good order (e.g. by some third-party code you are using?). Of course the code may then have thrown an exception / aborted, but if it did (and I don't know whether it did), that has nothing to do with the log message itself, except that you're being told first that there's a problem, apparently as a courtesy.
As for the numbers, they probably have nothing to say that will concern you here. The first number is your process number and won't be stable between invocations; it is rarely of interest. The second number is the thread number and is of interest when there are many log statements for discovering whether this log statement is executed in a background thread (or in the same thread as other log statements).
Many of the Caché API methods return a %Status object which indicates if this is an error. The thing is, when it's an unknown error I don't know how to handle (like a network failure) what I really want to do is "throw" the error so my code stops what it's doing and the error gets caught by some higher level error handler (and/or the built-in %ETN error log).
I could use ztrap like:
s status = someObject.someMethod()
ztrap:$$$ISERR(status)
But that doesn't report much detail (unlike, say, .NET where I can throw an exception all the way to to the top of the stack) and I'm wondering if there are any better ways to do this.
Take a look at the Class Reference for %Exception.StatusException. You can create an exception from your status and throw it to whatever error trap is active at the time (so the flow of control would be the same as your ZTRAP example), like this
set sc = someobj.MethodReturningStatus()
if $$$ISERR(sc) {
set exception = ##class(%Exception.StatusException).CreateFromStatus(sc)
throw exception
}
However, in order to recover the exception information inside the error trap code that catches this exception, the error trap must have been established with try/catch. The older error handlers, $ztrap and $etrap, do not provide you with the exception object and you will only see that you have a <NOCATCH> error as the $ZERROR value. Even in that case, the flow of control will work as you want it to, but without try/catch, you would be no better off than you are with ZTRAP
These are two different error mechanisms and can't be combined in this way. ztrap and %ETN are for Cache level errors (the angle bracket errors like <UNDEFINED>). %Status objects are for application level errors (including errors that occurred through the use of the Cache Class Library) and you can choose how you want to handle them yourself. It's not really meaningful to handle a bad %Status through the Cache error mechanism because no Cache error has occurred.
Generally what most people do is something akin to:
d:$$$ISERR(status) $$$SomeMacroRelevantToMyAppThatWillHandleThisStatus(status)
It is possible to create your own domain with your own whole host of %Status codes with attendant %msg values for your application. Your app might have tried to connect to an FTP server and had a bad password, but that doesn't throw a <DISCONNECT> and there is no reason to investigate the stack, just an application level error that needs to be handled, possibly by asking the user to enter a new password.
It might seem odd that there are these two parallel error mechanisms, but they are describing two different types of errors. Think of one of them being "platform" level errors, and the other as "application level errors"
Edit: One thing I forgot, try DecomposeStatus^%apiOBJ(status) or ##class(%Status).LogicalToOdbc(status) to convert the status object to a human readable string. Also, if you're doing command line debugging or just want to print the readable form to the principal device, you can use $system.OBJ.DisplayError(status).