Matillion ETL Job Concurrency Overview

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Questions and Answers

What is the default number of jobs that a Matillion ETL instance allows to run concurrently?

  • 8 jobs
  • 12 jobs
  • 20 jobs
  • 16 jobs (correct)

How does the number of vCPUs on a Matillion ETL instance affect the maximum number of processes that can run in a single job?

  • It has no effect
  • Each vCPU allows 3 processes
  • Each vCPU allows 2 processes (correct)
  • Each vCPU allows 4 processes

What happens when a job queue consists of running one job 16 times?

  • All jobs run sequentially (correct)
  • Jobs run based on priority
  • All jobs run concurrently
  • Only one job runs

What is an unbound queue in the context of Matillion ETL's job submission?

<p>A queue with no imposed limit on size (A)</p> Signup and view all the answers

How do long-running jobs submitted in multiple instances affect scheduled jobs?

<p>They prevent the scheduled jobs from running (B)</p> Signup and view all the answers

What determines the maximum number of processes that can run inside a single Matillion ETL job?

<p>Number of vCPUs on the instance (B)</p> Signup and view all the answers

What happens when you launch Matillion ETL with an instance having many more vCPUs than suggested?

<p>It can increase the number of processes that can run in a single job (C)</p> Signup and view all the answers

How does running multiple instances of a long-running job affect job scheduling?

<p>It can conflict with scheduled jobs (D)</p> Signup and view all the answers

What could happen if long-running jobs conflict with a scheduled job?

<p>&quot;The scheduled job may not run at its scheduled time&quot; (C)</p> Signup and view all the answers

What is recommended to use in these scenarios?

<p>Micro-batching pattern (C)</p> Signup and view all the answers

How are validation tasks submitted in Matillion ETL?

<p>Via the task runner (C)</p> Signup and view all the answers

What happens when the maximum concurrency limit is reached in Matillion ETL?

<p>Validation times may increase (C)</p> Signup and view all the answers

In an HA Cluster, how are jobs distributed across nodes?

<p>Randomly (B)</p> Signup and view all the answers

What is important for jobs running on an HA Cluster when a node fails?

<p>Making the job idempotent (A)</p> Signup and view all the answers

What does the warning about transformation jobs highlight?

<p>Multiple instances of the same transformation job cannot run in parallel (A)</p> Signup and view all the answers

What behavior is observed when using a Run Orchestration component?

<p>Jobs are queued at the sub-job level (B)</p> Signup and view all the answers

What does Matillion's Multiple Environment Connections feature enable users to do?

<p>Run multiple ETL jobs across multiple connections (D)</p> Signup and view all the answers

Why should users avoid running multiple instances of the same transformation job at once?

<p>'Deadlocks' can occur and high availability may be compromised (D)</p> Signup and view all the answers

What is the number of default threads allocated for each pool when a job is running?

<p>$2 \times n$ Vcores (C)</p> Signup and view all the answers

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