Examples of PoolMetaData

org.apache.hadoop.mapred.PoolMetadata
Metadata about a pool that is a snapshot of the actual state of the pool. The fair scheduler for MapReduce and Corona can both use this helper class for calculating fairness metrics.
org.torquebox.core.runtime.PoolMetaData
Ruby interpreter pool configuration.
Pools may be created as non-shared, shared, or backed by the global interpreter. These three types of pools are ranked from most memory-intensive (but more secure) to less memory-intensive (but less secure, due to sharing). Threadsafety of the client application should be considered when configuring a pool.

A non-shared pool allows exclusive access to each pooled interpreter to exactly one client at a time. A non-shared pool has minimum and maximum size settings.

A shared pool is a pool backed by a single interpreter, shared among many client simultaneously. The pool owns the interpreter.

A global pool is backed by a single global interpreter, possibly shared with other global pools.
@author Bob McWhirter

Examples of org.apache.hadoop.mapred.PoolMetadata

        if (resourceMetadata == null) {
          continue;
        }
        String stringifiedPoolInfo =
            PoolInfo.createStringFromPoolInfo(poolEntry.getKey());
        PoolMetadata poolMetadata =
            poolNameMetadataMap.get(stringifiedPoolInfo);
        if (poolMetadata == null) {
          poolMetadata = new PoolMetadata(stringifiedPoolInfo);
          poolNameMetadataMap.put(stringifiedPoolInfo, poolMetadata);
        }
        poolMetadata.addResourceMetadata(schedulerEntry.getKey().toString(),
                                         resourceMetadata);
      }
    }
    return new ArrayList<PoolMetadata>(poolNameMetadataMap.values());
  }

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Examples of org.torquebox.core.runtime.PoolMetaData

    @Test
    public void testMinMaxPool() throws Exception {
        MockDeploymentPhaseContext phaseContext = createPhaseContext();
        MockDeploymentUnit unit = phaseContext.getMockDeploymentUnit();


        PoolMetaData poolMetaData = new PoolMetaData( "pool_one" );
        poolMetaData.setMinimumSize( 2 );
        poolMetaData.setMaximumSize( 200 );


        unit.addToAttachmentList( PoolMetaData.ATTACHMENTS_KEY, poolMetaData );
        
        RubyAppMetaData rubyAppMetaData = new RubyAppMetaData( "test-app");
        rubyAppMetaData.attachTo( unit );

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Examples of org.torquebox.core.runtime.PoolMetaData

    @Test
    public void testSharedPoolWithFactory() throws Exception {
        MockDeploymentPhaseContext phaseContext = createPhaseContext();
        MockDeploymentUnit unit = phaseContext.getMockDeploymentUnit();


        PoolMetaData poolMetaData = new PoolMetaData( "pool_one" );
        poolMetaData.setInstanceFactoryName( "instance_factory" );
        poolMetaData.setShared();
        
        unit.addToAttachmentList( PoolMetaData.ATTACHMENTS_KEY, poolMetaData );
        
        RubyAppMetaData rubyAppMetaData = new RubyAppMetaData( "test-app");
        rubyAppMetaData.attachTo( unit );

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Examples of org.torquebox.core.runtime.PoolMetaData

        if ( ! unit.hasAttachment( ServiceMetaData.ATTACHMENTS_KEY ) ) {
            return;
        }
        
        List<PoolMetaData> allMetaData = unit.getAttachmentList( PoolMetaData.ATTACHMENTS_KEY );
        PoolMetaData poolMetaData = PoolMetaData.extractNamedMetaData( allMetaData, "services" );
        
        if ( poolMetaData == null ) {
            poolMetaData = new PoolMetaData("services");
            poolMetaData.setShared();
            unit.addToAttachmentList( PoolMetaData.ATTACHMENTS_KEY, poolMetaData );
        }
    }

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Examples of org.torquebox.core.runtime.PoolMetaData

        deploy( phaseContext );


        List<PoolMetaData> allPools = unit.getAttachmentList( PoolMetaData.ATTACHMENTS_KEY );
        assertEquals( 1, allPools.size() );


        PoolMetaData servicePoolMetaData = allPools.get( 0 );
        assertEquals( "services", servicePoolMetaData.getName() );
        assertTrue( servicePoolMetaData.isShared() );
        assertTrue( servicePoolMetaData.isDeferUntilRequested() );
    }

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Examples of org.torquebox.core.runtime.PoolMetaData

        if (DeploymentUtils.isUnitRootless( unit )) {
            return;
        }


        List<PoolMetaData> allMetaData = unit.getAttachmentList( PoolMetaData.ATTACHMENTS_KEY );
        PoolMetaData jobsPool = PoolMetaData.extractNamedMetaData( allMetaData, "jobs" );


        if (jobsPool == null) {
            RubyAppMetaData envMetaData = unit.getAttachment( RubyAppMetaData.ATTACHMENT_KEY );
            boolean devMode = envMetaData != null && envMetaData.isDevelopmentMode();
            jobsPool = devMode ? new PoolMetaData( "jobs", 1, 10 ) : new PoolMetaData( "jobs" );
            unit.addToAttachmentList( PoolMetaData.ATTACHMENTS_KEY, jobsPool );
        }
    }

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Examples of org.torquebox.core.runtime.PoolMetaData

        if ( ! unit.hasAttachment( RackMetaData.ATTACHMENT_KEY ) ) {
            return;
        }
        
        List<PoolMetaData> allMetaData = unit.getAttachmentList( PoolMetaData.ATTACHMENTS_KEY );
        PoolMetaData poolMetaData = PoolMetaData.extractNamedMetaData( allMetaData, "web" );
        
        if ( poolMetaData == null ) {
            poolMetaData = new PoolMetaData("web");
            poolMetaData.setShared();
            poolMetaData.setDeferUntilRequested( false );
            unit.addToAttachmentList( PoolMetaData.ATTACHMENTS_KEY, poolMetaData );
        }
        
        String forceConnectorStart = System.getProperty( "org.torquebox.web.force_http_connector_start", "false" );
        if (Boolean.parseBoolean( forceConnectorStart )) {

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Examples of org.torquebox.core.runtime.PoolMetaData


        List<PoolMetaData> allMetaData = unit.getAttachmentList( PoolMetaData.ATTACHMENTS_KEY );


        assertEquals( 1, allMetaData.size() );


        PoolMetaData poolMetaData = allMetaData.get( 0 );


        assertNotNull( poolMetaData );
        assertTrue( poolMetaData.isShared() );
        assertFalse( poolMetaData.isDeferUntilRequested() );


        unit.removeAttachment( PoolMetaData.ATTACHMENTS_KEY );


        unit.addToAttachmentList( PoolMetaData.ATTACHMENTS_KEY, new PoolMetaData( "web", 2, 4 ) );


        deploy( phaseContext );


        allMetaData = unit.getAttachmentList( PoolMetaData.ATTACHMENTS_KEY );


        assertEquals( 1, allMetaData.size() );


        poolMetaData = allMetaData.get( 0 );


        assertNotNull( poolMetaData );
        assertFalse( poolMetaData.isShared() );
        assertEquals( 2, poolMetaData.getMinimumSize() );
        assertEquals( 4, poolMetaData.getMaximumSize() );
    }

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Examples of org.torquebox.core.runtime.PoolMetaData

        deploy( phaseContext );
        List<PoolMetaData> allMetaData = unit.getAttachmentList( PoolMetaData.ATTACHMENTS_KEY );


        assertEquals( 1, allMetaData.size() );


        PoolMetaData poolMetaData = allMetaData.get( 0 );
        
        assertNotNull( poolMetaData );
        assertFalse( poolMetaData.isShared() );
        assertEquals( 2, poolMetaData.getMinimumSize() );
        assertEquals( 4, poolMetaData.getMaximumSize() );
    }

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Examples of org.torquebox.core.runtime.PoolMetaData

        if (pooling != null) {
            for (String name : pooling.keySet()) {


                Object pool = pooling.get( name );


                PoolMetaData poolMetaData = new PoolMetaData( name );
                if (name.equals( "web" )) {
                    // Web runtimes default to eager
                    poolMetaData.setDeferUntilRequested( false );
                }


                if (pool instanceof Map) {
                    Map<String, Object> poolMap = (Map<String, Object>) pool;


                    if (poolMap.get( "type" ) != null) {
                        String type = poolMap.get( "type" ).toString();
                        if (type.equals( "shared" )) {
                            poolMetaData.setShared();
                        } else if (type.equals( "global" )) {
                            poolMetaData.setGlobal();
                        }
                    }


                    if (poolMap.get( "min" ) != null) {
                        poolMetaData.setMinimumSize( ((Number) poolMap.get( "min" )).intValue() );
                    }


                    if (poolMap.get( "max" ) != null) {
                        poolMetaData.setMaximumSize( ((Number) poolMap.get( "max" )).intValue() );
                    }


                    if (poolMap.get( "lazy" ) != null) {
                        poolMetaData.setDeferUntilRequested( (Boolean) poolMap.get( "lazy" ) );
                    }
                } else if (pool instanceof String) {
                    if (pool.toString().equals( "shared" )) {
                        poolMetaData.setShared();
                    } else if (pool.toString().equals( "global" )) {
                        poolMetaData.setGlobal();
                    }
                }
                unit.addToAttachmentList( PoolMetaData.ATTACHMENTS_KEY, poolMetaData );
            }
        }

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