Class DynamicResourceManager
java.lang.Object
org.apache.drill.exec.work.foreman.rm.DynamicResourceManager
- All Implemented Interfaces:
ResourceManager
Wrapper around the default and/or distributed resource managers
to allow dynamically enabling and disabling queueing.
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Field Summary
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionactiveRM()
void
close()
int
long
Returns the memory, in bytes, assigned to each node in a Drill cluster.newQueryRM
(Foreman foreman) Create a resource manager to execute a query.newResourceAllocator
(QueryContext queryContext) Create a resource manager to prepare or describe a query.
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Field Details
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nextUpdateTime
public long nextUpdateTime -
recheckDelayMs
public final int recheckDelayMs- See Also:
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Constructor Details
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DynamicResourceManager
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Method Details
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activeRM
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memoryPerNode
public long memoryPerNode()Description copied from interface:ResourceManager
Returns the memory, in bytes, assigned to each node in a Drill cluster. Drill requires that nodes are symmetrical. So, knowing the memory on any one node also gives the memory on all other nodes.- Specified by:
memoryPerNode
in interfaceResourceManager
- Returns:
- the memory, in bytes, available in each Drillbit
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cpusPerNode
public int cpusPerNode()- Specified by:
cpusPerNode
in interfaceResourceManager
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newResourceAllocator
Description copied from interface:ResourceManager
Create a resource manager to prepare or describe a query. In this form, no queuing is done, but the plan is created as if queuing had been done. Used when executing EXPLAIN PLAN.- Specified by:
newResourceAllocator
in interfaceResourceManager
- Returns:
- a resource manager for the query
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newQueryRM
Description copied from interface:ResourceManager
Create a resource manager to execute a query.- Specified by:
newQueryRM
in interfaceResourceManager
- Parameters:
foreman
- Foreman which manages the execution- Returns:
- a resource manager for the query
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close
public void close()- Specified by:
close
in interfaceResourceManager
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