Can off JVM heap Memory used in the Near-Cache front-tier

I had tried to config a near-Cache used nio-manager(off JVM heap) in the Front-tier.
<near-scheme>
      <scheme-name>CohApp-near</scheme-name>
      <front-scheme>
        <external-scheme>
        </external-scheme>
      </front-scheme>
      <back-scheme>
        <distributed-scheme>
          <scheme-ref>CohApp-distributed</scheme-ref>
        </distributed-scheme>
      </back-scheme>
      <invalidation-strategy>auto</invalidation-strategy>
      <autostart>true</autostart>
    </near-scheme>
when start 'com.tangosol.net.DefaultCacheServer' for this config, error as:
Oracle Coherence Version 3.7.1.0 Build 27797
Enterprise Edition: Development mode
Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
2014-03-30 16:34:17.518/1.201 Oracle Coherence EE 3.7.1.0 <Error> (thread=main,
member=n/a): Error org.xml.sax.SAXParseException: cvc-complex-type.2.4.a: Invali
d content was found starting with element 'external-scheme'. One of '{"http://xm
lns.oracle.com/coherence/coherence-cache-config":local-scheme, "http://xmlns.ora
cle.com/coherence/coherence-cache-config":class-scheme}' is expected. - line 92
Exception in thread "main" (Wrapped: Failed to load the factory) (Wrapped: Missi
ng or inaccessible constructor "com.tangosol.net.DefaultConfigurableCacheFactory
(String)"
<configurable-cache-factory-config>
<class-name>com.tangosol.net.DefaultConfigurableCacheFactory</class-name>
<init-params>
    <init-param>
      <param-type>java.lang.String</param-type>
      <param-value>coherence-cache-config.xml</param-value>
    </init-param>
</init-params>
</configurable-cache-factory-config>) java.lang.reflect.InvocationTargetExceptio
n
        at com.tangosol.util.Base.ensureRuntimeException(Base.java:288)
        at com.tangosol.net.ScopedCacheFactoryBuilder.getDefaultFactory(ScopedCa
cheFactoryBuilder.java:311)
        at com.tangosol.net.DefaultCacheFactoryBuilder.getSingletonFactory(Defau
ltCacheFactoryBuilder.java:48)
        at com.tangosol.net.DefaultCacheFactoryBuilder.getFactory(DefaultCacheFa
ctoryBuilder.java:121)
        at com.tangosol.net.ScopedCacheFactoryBuilder.getConfigurableCacheFactor
y(ScopedCacheFactoryBuilder.java:112)
        at com.tangosol.net.CacheFactory.getConfigurableCacheFactory(CacheFactor
y.java:126)
        at com.tangosol.net.DefaultCacheServer.getDefaultConfigurableCacheFactor
y(DefaultCacheServer.java:364)
        at com.tangosol.net.DefaultCacheServer.main(DefaultCacheServer.java:197)
Caused by: (Wrapped: Missing or inaccessible constructor "com.tangosol.net.Defau
ltConfigurableCacheFactory(String)"
<configurable-cache-factory-config>
<class-name>com.tangosol.net.DefaultConfigurableCacheFactory</class-name>
<init-params>
    <init-param>
      <param-type>java.lang.String</param-type>
      <param-value>coherence-cache-config.xml</param-value>
    </init-param>
</init-params>
</configurable-cache-factory-config>) java.lang.reflect.InvocationTargetExceptio
n
        at com.tangosol.util.Base.ensureRuntimeException(Base.java:288)
        at com.tangosol.run.xml.XmlHelper.createInstance(XmlHelper.java:2652)
        at com.tangosol.run.xml.XmlHelper.createInstance(XmlHelper.java:2536)
        at com.tangosol.net.ScopedCacheFactoryBuilder.getDefaultFactory(ScopedCa
cheFactoryBuilder.java:273)
        ... 6 more
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstruct
orAccessorImpl.java:39)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingC
onstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at com.tangosol.util.ClassHelper.newInstance(ClassHelper.java:694)
        at com.tangosol.run.xml.XmlHelper.createInstance(XmlHelper.java:2611)
        ... 8 more
Caused by: (Wrapped: Failed to load cache configuration: coherence-cache-config.
xml) (Wrapped) java.io.IOException: Exception occurred during schema validation:
cvc-complex-type.2.4.a: Invalid content was found starting with element 'externa
l-scheme'. One of '{"http://xmlns.oracle.com/coherence/coherence-cache-config":l
ocal-scheme, "http://xmlns.oracle.com/coherence/coherence-cache-config":class-sc
heme}' is expected.
        at com.tangosol.util.Base.ensureRuntimeException(Base.java:288)
        at com.tangosol.run.xml.XmlHelper.loadResourceInternal(XmlHelper.java:34
1)
        at com.tangosol.run.xml.XmlHelper.loadFileOrResource(XmlHelper.java:283)
        at com.tangosol.net.DefaultConfigurableCacheFactory.loadConfig(DefaultCo
nfigurableCacheFactory.java:439)
        at com.tangosol.net.DefaultConfigurableCacheFactory.loadConfig(DefaultCo
nfigurableCacheFactory.java:425)
        at com.tangosol.net.DefaultConfigurableCacheFactory.<init>(DefaultConfig
urableCacheFactory.java:155)
        ... 14 more
Caused by: (Wrapped) java.io.IOException: Exception occurred during schema valid
ation:
cvc-complex-type.2.4.a: Invalid content was found starting with element 'externa
l-scheme'. One of '{"http://xmlns.oracle.com/coherence/coherence-cache-config":l
ocal-scheme, "http://xmlns.oracle.com/coherence/coherence-cache-config":class-sc
heme}' is expected.
        at com.tangosol.run.xml.XmlHelper.loadXml(XmlHelper.java:122)
        at com.tangosol.run.xml.XmlHelper.loadXml(XmlHelper.java:157)
        at com.tangosol.run.xml.XmlHelper.loadResourceInternal(XmlHelper.java:32
2)
        ... 18 more
Caused by: java.io.IOException: Exception occurred during schema validation:
cvc-complex-type.2.4.a: Invalid content was found starting with element 'externa
l-scheme'. One of '{"http://xmlns.oracle.com/coherence/coherence-cache-config":l
ocal-scheme, "http://xmlns.oracle.com/coherence/coherence-cache-config":class-sc
heme}' is expected.
        at com.tangosol.run.xml.SimpleParser.parseXml(SimpleParser.java:212)
        at com.tangosol.run.xml.SimpleParser.parseXml(SimpleParser.java:93)
        at com.tangosol.run.xml.SimpleParser.parseXml(SimpleParser.java:162)
        at com.tangosol.run.xml.SimpleParser.parseXml(SimpleParser.java:115)
        at com.tangosol.run.xml.XmlHelper.loadXml(XmlHelper.java:118)
        ... 20 more
Caused by: org.xml.sax.SAXParseException: cvc-complex-type.2.4.a: Invalid conten
t was found starting with element 'external-scheme'. One of '{"http://xmlns.orac
le.com/coherence/coherence-cache-config":local-scheme, "http://xmlns.oracle.com/
coherence/coherence-cache-config":class-scheme}' is expected.
        at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAX
ParseException(ErrorHandlerWrapper.java:195)
        at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(Err
orHandlerWrapper.java:131)
        at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(
XMLErrorReporter.java:384)
        at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(
XMLErrorReporter.java:318)
        at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator$XSIErro
rReporter.reportError(XMLSchemaValidator.java:417)
        at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.reportS
chemaError(XMLSchemaValidator.java:3182)
        at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleS
tartElement(XMLSchemaValidator.java:1806)
        at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.startEl
ement(XMLSchemaValidator.java:705)
        at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scan
StartElement(XMLNSDocumentScannerImpl.java:400)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImp
l$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2756)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(X
MLDocumentScannerImpl.java:648)
        at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next
(XMLNSDocumentScannerImpl.java:140)
        at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImp
l.scanDocument(XMLDocumentFragmentScannerImpl.java:511)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(X
ML11Configuration.java:808)
        at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(X
ML11Configuration.java:737)
        at com.sun.org.apache.xerces.internal.jaxp.validation.StreamValidatorHel
per.validate(StreamValidatorHelper.java:144)
        at com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorImpl.vali
date(ValidatorImpl.java:111)
        at javax.xml.validation.Validator.validate(Validator.java:127)
        at com.tangosol.run.xml.SaxParser.validateXsd(SaxParser.java:236)
        at com.tangosol.run.xml.SimpleParser.parseXml(SimpleParser.java:206)
So I think that if can off JVM heap Memory used in the Near-Cache front-tier?
Or can help how to config the off JVM heap Memory used in the Near-Cache front-tier.
Thanks.

Only local-scheme and class-scheme can be used in the front-scheme of a near cache.

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I've been a Lightroom user since the very first Beta, and I am truly happy with the work you deliver. It changed my way of editing forever, and you guys keep improving it.
Yet there is that one question that bothers me, and that i'm looking for an answer for.
My Workflow has the generate Previews checkbox checked by standard. I usually import between 150 and 2000 photos at once, on occaions it can be up to 5000 photos. Generating Previews always takes a significant amount of time, and Lightroom is only using 25% of my CPU Power while doing so. (using a MacBook Pro 8,2)
I understand the concept, that only using 25% CPU enables me to use the computer while waiting for the Previews. But most of the time I just grab myself a cup of coffee, do the dishes or other stuff, while waiting for the Previews. Usually I rund out of things to do, because it takes ages to Process all the photos. So I would really love to make Lightroom use ALL the cpu power possible.
I'm sure you guys have spent a lot of thoughts while coding this and have a very good answer handy. Looking forward reading it!
all the best,
Wolfgang

Wolfgang Lienbacher wrote:
I was actually hoping to get an official reply from adobe ...
This is prmarily a user-to-user forum. The Adobe staff monitored site is here:
http://feedback.photoshop.com/photoshop_family
On my four-year old Windows 7 i7-860 system LR4.4.1 takes ~0.5 sec. per Canon 5D MKII 21Mp raw image to render 'Standard-Sized' previews with LR Catalog Settings 'Standard Preview Size' set to '2048' pixels. I consider that pretty fast!
I usually build 1:1 full-size previews on import, which takes ~5.0 sec. per image. Processor utilization varies between 15-50% for Standard-Sized previews and 15-65% for 1:1 previews. I consider this pretty slow, but it doesn't stop me from working on the images inside LR's Library and Develop modules.
I wait until 'Copy and import photos' has completed and can see Preview Building has started. LR doesn't slow-down much even with the 1:1 preview building going on in the background. Have you tried working in LR during the preview building (i.e. sorting, rating, keywording, and Develop adjustments)?

Can off JVM heap Memory used in the Near-Cache front-tier

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