Class MultitenantScheduler
- java.lang.Object
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- org.apache.storm.scheduler.multitenant.MultitenantScheduler
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- All Implemented Interfaces:
INodeAssignmentSentCallBack,IScheduler
public class MultitenantScheduler extends Object implements IScheduler
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Field Summary
Fields Modifier and Type Field Description protected IConfigLoaderconfigLoader
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Constructor Summary
Constructors Constructor Description MultitenantScheduler()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Map<String,Number>config()This function returns the scheduler's configuration.voidprepare(Map<String,Object> conf, StormMetricsRegistry metricsRegistry)voidschedule(Topologies topologies, Cluster cluster)Set assignments for the topologies which needs scheduling.-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.apache.storm.scheduler.INodeAssignmentSentCallBack
nodeAssignmentSent
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Methods inherited from interface org.apache.storm.scheduler.IScheduler
cleanup
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Field Detail
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configLoader
protected IConfigLoader configLoader
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Method Detail
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prepare
public void prepare(Map<String,Object> conf, StormMetricsRegistry metricsRegistry)
- Specified by:
preparein interfaceIScheduler
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config
public Map<String,Number> config()
Description copied from interface:ISchedulerThis function returns the scheduler's configuration.- Specified by:
configin interfaceIScheduler- Returns:
- The scheduler's configuration.
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schedule
public void schedule(Topologies topologies, Cluster cluster)
Description copied from interface:ISchedulerSet assignments for the topologies which needs scheduling. The new assignments is available through `cluster.getAssignments()`- Specified by:
schedulein interfaceIScheduler- Parameters:
topologies- all the topologies in the cluster, some of them need schedule. Topologies object here only contain static information about topologies. Information like assignments, slots are all in the `cluster` object.cluster- the cluster these topologies are running in. `cluster` contains everything user need to develop a new scheduling logic. e.g. supervisors information, available slots, current assignments for all the topologies etc. User can set the new assignment for topologies using cluster.setAssignmentById()`
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