Re: Install UDF library (NCService option)

Mike Carey Mon, 15 Oct 2018 11:51:42 -0700

(We need to update the documentation!)

On 10/15/18 10:58 AM, Xikui Wang wrote:

Hi Sandra,


The UDF template repo that you used was outdated for some time. There has
been some UDF refactorization in AsterixDB since that. I've just updated
the template repo to the latest AsterixDB build. Please pull the latest
changes before you try again.

If you want to install UDF with the NCService deployment, you would have to
manually copy the package content into the
"lib/udfs/DATAVERSE_NAME/LIB_NAME/" directory. You will probably need to
create all the folders including the "udfs" one. A sample structure of the
lib directory will be like this:

lib
....
├── stax-utils-20060502.jar
└── udfs
     └── test
         └── testlib
             ├── asterix-udf-template-0.1-SNAPSHOT.jar
             └── library_descriptor.xml

About your previous question, Ansible always relies on SSH even if you
configure it with localhost only. It treats the localhost as a cluster with
a single machine. You may want to check the password-less configuration of
your machine to avoid that problem. If you just to want to find a fast way
to play around, the NCService deployment would be the right way to go. :)

Best,
Xikui

On Mon, Oct 15, 2018 at 8:14 AM Ian Maxon <[email protected]> wrote:

You can probably get away with it, yes. Look at what the ansible task
to install the UDF does and copy it to the same location, and it'll
work.

On Mon, Oct 15, 2018 at 7:00 AM Sandra Skarshaug
<[email protected]> wrote:

Some follow up information, I have a folder structure inside

asterix-server-0.9.3-binary-assembly which looks like the attached image.
The files inside testlib are generated when building the following
udf-template project: https://github.com/idleft/asterix-udf-template.

When I try to execute the query below, it says function

test.testlib#mysum@2 is not defined [CompilationException]

  "use test;
  testlib#mysum(3,4);"

man. 15. okt. 2018 kl. 11:36 skrev Sandra Skarshaug <

[email protected]>:

Hi!

I am using AsterixDB for my master thesis, and I have some issues I

hope you can help me with!

How do I install a UDF package when I am using NCService, not Ansible?

Is it enough to unzip the .jar generated from my project, and add it to
asterix-server-0.9.3-binary-assembly/lib/udfs/testlib? Or should I use my
local version of asterixdb (the cloned repo), not the one installed through
your webpage?

The following information is found in the cc.log when I put the .jar in

the location specified above (lib/udfs/testlib): ssembly/lib/udfs

Oct 15, 2018 10:41:17 AM org.apache.hyracks.control.cc.CCDriver main
SEVERE: Exiting CCDriver due to exception
java.lang.ArrayIndexOutOfBoundsException: 0
at

org.apache.asterix.app.external.ExternalLibraryUtils.getLibraryClassLoader(ExternalLibraryUtils.java:353)

at

org.apache.asterix.app.external.ExternalLibraryUtils.registerLibrary(ExternalLibraryUtils.java:299)

at

org.apache.asterix.app.external.ExternalLibraryUtils.setUpExternaLibraries(ExternalLibraryUtils.java:78)

at

org.apache.asterix.hyracks.bootstrap.CCApplication.start(CCApplication.java:140)

at org.apache.hyracks.control.cc

.ClusterControllerService.startApplication(ClusterControllerService.java:226)

at org.apache.hyracks.control.cc

.ClusterControllerService.start(ClusterControllerService.java:212)

at org.apache.hyracks.control.cc.CCDriver.main(CCDriver.java:47)


I am really looking forward to your answer!

Best regards,
Sandra Skarshaug

Re: Install UDF library (NCService option)

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