Question-19: Cloudera recommends which Java Garbage collection algorithms for Service Monitor?

  1. Serial Garbage Collector.
  2. Parallel Garbage Collector.
  3. CMS Garbage Collector.
  4. Z Garbage Collector.

Answer:

Exp: Java Heap Size values (see the tables below) are rough estimates and some tuning might be necessary. Cloudera recommends using the G1 garbage collector (G1GC) for Service Monitor. ???  eliminates long JVM pauses, but uses a bit more CPU and RAM.  It is the default for new installations. 


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