Forum Discussion

DennesTorres's avatar
DennesTorres
Impactful Individual
2 years ago
Solved

Notebook Logs

Hi,   We can link a workspace with log analytics, I did with mine.   How could I from a notebook generate a log which is recorded in the log analytics linked to the workspace ?   Kind Regards, ...
data engineering
  • Anonymous's avatar
    Anonymous
    2 years ago

    Hi DennesTorres 
    Thanks for using Fabric Community.
    You can add a code cell in your notebook as follows:

    // Test log4j MDC/NDC
// https://github.com/mspnp/spark-monitoring/issues/28 
import org.apache.log4j.MDC 
val LOGGER_PREFIX = "[Gluten]" 
val logger = org.apache.log4j.LogManager.getLogger(LOGGER_PREFIX + " " +
"com.contoso.LoggerExample") 

logger.info("Hello, info message") 
logger.warn("Hello, warn message") 
logger.error("Hello, error message")

     


    You can validate the log here:


    Hope this helps. Please let me know if you have any further queries.

DennesTorres's avatar
DennesTorres
Impactful Individual
2 years ago

Hi, Anonymous ,

 

This example seems made for Databricks, I couldn't manage to make it work in Fabric.

First problem is the import: This library doesn't exist and pip install doesn't work for it as well. Is there other way to make this import work ?

I tried to work around the import in two different way:

First attempt:

logger = spark.sparkContext._jvm.org.apache.log4j.LogManager.getLogger(LOGGER_PREFIX + " " + "com.contoso.LoggerExample")
 
Second Attempt: 
logger = spark.sparkContext._jvm.org.apache.log4j.LogManager.getRootLogger()
 
The workspace was linked to log analytics. The table you exemplified in log analytics doesn't exist. I tried many other tables related to power bi or spark, but none of them registered the log messages.

What else am I missing?

Thank you in advance!

Kind Regards,

Dennes



BlackCurrant's avatar
BlackCurrant
Frequent Visitor
1 year ago

Hello, I am trying the same, did it work for you? Thanks!