Package org.apache.flink.runtime.jobmanager

Class JobManagerProcessSpec

java.lang.Object

org.apache.flink.runtime.util.config.memory.CommonProcessMemorySpec<JobManagerFlinkMemory>

org.apache.flink.runtime.jobmanager.JobManagerProcessSpec

All Implemented Interfaces:

Serializable, ProcessMemorySpec

public class JobManagerProcessSpec
extends CommonProcessMemorySpec<JobManagerFlinkMemory>

Describe the specifics of different resource dimensions of the JobManager process.

A JobManager's memory consists of the following components:

• JVM Heap Memory
• Off-heap Memory
• JVM Metaspace
• JVM Overhead

We use Total Process Memory to refer to all the memory components, while Total Flink Memory refering to all the components except JVM Metaspace and JVM Overhead.

The relationships of JobManager memory components are shown below.

               ┌ ─ ─ Total Process Memory  ─ ─ ┐
                ┌ ─ ─ Total Flink Memory  ─ ─ ┐
               │ ┌───────────────────────────┐ │
  On-Heap ----- ││      JVM Heap Memory      ││
               │ └───────────────────────────┘ │
               │ ┌───────────────────────────┐ │
            ┌─  ││       Off-heap Memory     ││
            │  │ └───────────────────────────┘ │
            │   └ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ┘
            │  │┌─────────────────────────────┐│
  Off-Heap ─|   │        JVM Metaspace        │
            │  │└─────────────────────────────┘│
            │   ┌─────────────────────────────┐
            └─ ││        JVM Overhead         ││
                └─────────────────────────────┘
               └ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ─ ┘
 

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
JobManagerProcessSpec(org.apache.flink.configuration.MemorySize jvmHeapSize, org.apache.flink.configuration.MemorySize offHeapSize, org.apache.flink.configuration.MemorySize jvmMetaspaceSize, org.apache.flink.configuration.MemorySize jvmOverheadSize)

Method Summary

Modifier and Type	Method	Description
String	toString()

Methods inherited from class org.apache.flink.runtime.util.config.memory.CommonProcessMemorySpec

equals, getFlinkMemory, getJvmDirectMemorySize, getJvmHeapMemorySize, getJvmMetaspaceAndOverhead, getJvmMetaspaceSize, getJvmOverheadSize, getTotalFlinkMemorySize, getTotalProcessMemorySize, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

JobManagerProcessSpec

@VisibleForTesting
public JobManagerProcessSpec(org.apache.flink.configuration.MemorySize jvmHeapSize,
                             org.apache.flink.configuration.MemorySize offHeapSize,
                             org.apache.flink.configuration.MemorySize jvmMetaspaceSize,
                             org.apache.flink.configuration.MemorySize jvmOverheadSize)

Method Detail

toString

public String toString()

Overrides:

toString in class Object