Avatar

Azzy Ghiasvand

  • Total activity 182
  • Last activity
  • Member since
  • Following 0 users
  • Followed by 0 users
  • Votes 1
  • Subscriptions 110

Activity overview

Latest activity by Azzy Ghiasvand
  • Avatar

    Azzy Ghiasvand created an article,

    Catalog pod has gone into bad

      Problem: Catalog pod on Okera clusters went into a bad state.  How do I fix this issue?  Answer: 1. You need to look at the Catalog logs to narrow down what has caused this problem 2. One of the...

  • Avatar

    Azzy Ghiasvand created an article,

    Exception java.io.IOException:java.io.IOException: Could not reach service.

      Problem: Running a query which is failing  with: exception java.io.IOException:java.io.IOException: Could not reach service. Time taken: 0.278 seconds Answer: One use case that can contribute to ...

  • Avatar

    Azzy Ghiasvand created an article,

    Double data type truncating digits in the REST API

    Question: How does Double data type truncates digits in the REST API?   Answer:In the REST API, Okera returns up to 16 digits of precision (digits before decimal point). If the precision exceeds 16...

  • Avatar

    Azzy Ghiasvand created an article,

    Getting "Invalid task handle", while running a job in Okera cluster.

      Problem:    Getting the following error while running task ( failure ) :   attempt_1537806816366_0010_1_05_000131_0:java.lang.RuntimeException: java.lang.IllegalArgumentException: Invalid task ha...

  • Avatar

    Azzy Ghiasvand created an article,

    Databricks - How to use token sent from spark config in Databricks in an Okera-enabled cluster?

    Problem: Encountering the following error message, when using token sent from spark config in Databricks in an Okera-enabled cluster.  The spark config includes the following parameter at the clus...

  • Avatar

    Azzy Ghiasvand created an article,

    Hive query is failing with physical out of memory issue

    Problem: Failing with physical memory issue while running a job in an Okera-enabled cluster. Below is the Error Log: Application application_1536514003545_0006 failed 2 times due to AM Container f...

  • Avatar

    Azzy Ghiasvand created an article,

    GRANT SELECT Failed: ERROR - Data too long

    Problem: When performing a GRANT DDL statement on a dataset with a very long name an error is returned, containing the following: ERROR MESSAGE: ERROR:root:Status code 400 ERROR:root:Response: {&q...

  • Avatar

    Azzy Ghiasvand created an article,

    Okera Cluster Sizing

      Question: In Sizing an Okera Cluster, what should be memory/network related setting to allow us to increase the per node(planner/worker) network connections? For example if our production cluster...

  • Avatar

    Azzy Ghiasvand created an article,

    Invalid parquet schema with partitioned data

     Problem Running queries on parquet data from a spark EMR cluster produces timeout errors. Caused by: java.net.SocketTimeoutException: Read timed out The data producers changed the schema of the ta...

  • Avatar

    Azzy Ghiasvand created an article,

    How to use Okera's multi tenant EMR feature through tools connected to EMR such as Tableau, Hue?

    Question: Is it possible to use the multi tenant EMR feature of Okera through tools connected to EMR, such as Tableau or Hue? How would this work? Where does it look for the token?  Answer You n...