# 2 java web applications using the same node in local mode

**URL:** <https://discuss.elastic.co/t/2-java-web-applications-using-the-same-node-in-local-mode/5378>\
**Category:** Elasticsearch\
**Created:** [September 14, 2011, 12:54am UTC](https://discuss.elastic.co/t/2-java-web-applications-using-the-same-node-in-local-mode/5378 "2011-09-14T00:54:26Z")\
**Posts on this page:** 9\
**Page:** 1

<div class="post-metadata">

**Author:** ![Carl\_Samson](https://avatars.discourse-cdn.com/v4/letter/c/b5a626/32.png) [@Carl\_Samson](https://discuss.elastic.co/u/Carl_Samson)\
**Post date:** [September 14, 2011, 12:54am UTC](https://discuss.elastic.co/t/2-java-web-applications-using-the-same-node-in-local-mode/5378/1 "2011-09-14T00:54:26Z")

</div>

I have 2 web applications running in the same JVM. The first one manage the  
index the second one searches the index.  
Both web applications use the same node in local mode

_Node node = nodeBuilder().clusterName('mycluster').local(true).node();_\*  
Client client = node.client();\*  
The first web application invoking this code will get access to the client  
while the second one will hang for a while and then loop indefinitly. I got  
this error

```
   at

```

org.elasticsearch.common.inject.InjectorBuilder.injectDynamically(Inj  
ectorBuilder.java:182)

```
    at

```

org.elasticsearch.common.inject.InjectorBuilder.build(InjectorBuilder  
.java:114)  
at  
org.elasticsearch.common.inject.Guice.createInjector(Guice.java:93)  
at  
org.elasticsearch.common.inject.Guice.createInjector(Guice.java:70)  
at  
org.elasticsearch.common.inject.ModulesBuilder.createInjector(Modules  
Builder.java:58)  
at  
org.elasticsearch.node.internal.InternalNode.(InternalNode.java  
:147)  
at org.elasticsearch.node.NodeBuilder.build(NodeBuilder.java:159)  
at org.elasticsearch.node.NodeBuilder.node(NodeBuilder.java:166)

Is that a possible configuration ? what would be the way to use the same  
node from both web app. I am using version 0.17.0

Thanks

---

<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [September 14, 2011, 5:33am UTC](https://discuss.elastic.co/t/2-java-web-applications-using-the-same-node-in-local-mode/5378/2 "2011-09-14T05:33:32Z")

</div>

Perhaps your webapps share the same path for datas ?  
Did you set up path.data for each node ?

Not sure that is your problem.

HTH  
David 😉

Le 14 sept. 2011 à 02:54, Carl Samson [samsoncarl@gmail.com](mailto:samsoncarl@gmail.com) a écrit :

> I have 2 web applications running in the same JVM. The first one manage the index the second one searches the index.  
> Both web applications use the same node in local mode
> 
> Node node = nodeBuilder().clusterName('mycluster').local(true).node();  
> Client client = node.client();  
> The first web application invoking this code will get access to the client while the second one will hang for a while and then loop indefinitly. I got this error
> 
> ```
> at org.elasticsearch.common.inject.InjectorBuilder.injectDynamically(Inj
> 
> ```
> 
> ectorBuilder.java:182)
> 
> ```
> at org.elasticsearch.common.inject.InjectorBuilder.build(InjectorBuilder
> 
> ```
> 
> .java:114)  
> at org.elasticsearch.common.inject.Guice.createInjector(Guice.java:93)  
> at org.elasticsearch.common.inject.Guice.createInjector(Guice.java:70)  
> at org.elasticsearch.common.inject.ModulesBuilder.createInjector(Modules  
> Builder.java:58)  
> at org.elasticsearch.node.internal.InternalNode.(InternalNode.java  
> :147)  
> at org.elasticsearch.node.NodeBuilder.build(NodeBuilder.java:159)  
> at org.elasticsearch.node.NodeBuilder.node(NodeBuilder.java:166)
> 
> Is that a possible configuration ? what would be the way to use the same node from both web app. I am using version 0.17.0
> 
> Thanks

---

<div class="post-metadata">

**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\
**Post date:** [September 14, 2011, 8:01am UTC](https://discuss.elastic.co/t/2-java-web-applications-using-the-same-node-in-local-mode/5378/3 "2011-09-14T08:01:15Z")

</div>

I don't see the exception message with what you pasted (and can you please  
gist it)?

The way local node works is that it does static level discovery of nodes  
(static in the level of the same classloader). Your code will basically  
start two instances of the node, which if started in a single class loader,  
it will form a two node cluster.

If you want a single node, that is still local, make sure you find a way to  
share the same Node and Client between the two web applications.

On Wed, Sep 14, 2011 at 3:54 AM, Carl Samson [samsoncarl@gmail.com](mailto:samsoncarl@gmail.com) wrote:

> I have 2 web applications running in the same JVM. The first one manage the  
> index the second one searches the index.  
> Both web applications use the same node in local mode
> 
> _Node node = nodeBuilder().clusterName('mycluster').local(true).node();_\*  
> Client client = node.client();\*  
> The first web application invoking this code will get access to the  
> client while the second one will hang for a while and then loop indefinitly.  
> I got this error
> 
> ```
> at
> 
> ```
> 
> org.elasticsearch.common.inject.InjectorBuilder.injectDynamically(Inj  
> ectorBuilder.java:182)
> 
> ```
> at
> 
> ```
> 
> org.elasticsearch.common.inject.InjectorBuilder.build(InjectorBuilder  
> .java:114)  
> at  
> org.elasticsearch.common.inject.Guice.createInjector(Guice.java:93)  
> at  
> org.elasticsearch.common.inject.Guice.createInjector(Guice.java:70)  
> at  
> org.elasticsearch.common.inject.ModulesBuilder.createInjector(Modules  
> Builder.java:58)  
> at  
> org.elasticsearch.node.internal.InternalNode.(InternalNode.java  
> :147)  
> at org.elasticsearch.node.NodeBuilder.build(NodeBuilder.java:159)  
> at org.elasticsearch.node.NodeBuilder.node(NodeBuilder.java:166)
> 
> Is that a possible configuration ? what would be the way to use the same  
> node from both web app. I am using version 0.17.0
> 
> Thanks

---

<div class="post-metadata">

**Author:** ![Carl\_Samson](https://avatars.discourse-cdn.com/v4/letter/c/b5a626/32.png) [@Carl\_Samson](https://discuss.elastic.co/u/Carl_Samson)\
**Post date:** [September 15, 2011, 12:44am UTC](https://discuss.elastic.co/t/2-java-web-applications-using-the-same-node-in-local-mode/5378/4 "2011-09-15T00:44:58Z")

</div>

Yes i need to create to node instance sharing the same data (one web app  
writes and the other one reads)

It seems there is a lock exception, any way for me that i could use that  
configuration ?

Here is the exception

org.elasticsearch.common.inject.CreationException: Guice creation errors:

1. Error injecting constructor,  
java.nio.channels.OverlappingFileLockException

at org.elasticsearch.env.NodeEnvironment.(Unknown Source)

while locating org.elasticsearch.env.NodeEnvironment

Caused by: java.nio.channels.OverlappingFileLockException

at  
sun.nio.ch.FileChannelImpl$SharedFileLockTable.checkList(FileChannelImpl.java:1166)

at  
sun.nio.ch.FileChannelImpl$SharedFileLockTable.add(FileChannelImpl.java:1068)

at sun.nio.ch.FileChannelImpl.tryLock(FileChannelImpl.java:868)

at java.nio.channels.FileChannel.tryLock(FileChannel.java:962)

at org.apache.lucene.store.NativeFSLock.obtain(NativeFSLockFactory.java:216)

at org.elasticsearch.env.NodeEnvironment.(NodeEnvironment.java:69)

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at  
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)

at  
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)

at java.lang.reflect.Constructor.newInstance(Constructor.java:513)

at  
org.elasticsearch.common.inject.DefaultConstructionProxyFactory$1.newInstance(DefaultConstructionProxyFactory.java:54)

at  
org.elasticsearch.common.inject.ConstructorInjector.construct(ConstructorInjector.java:86)

at  
org.elasticsearch.common.inject.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:103)

at  
org.elasticsearch.common.inject.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:45)

at  
org.elasticsearch.common.inject.InjectorImpl.callInContext(InjectorImpl.java:823)

at  
org.elasticsearch.common.inject.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:42)

at org.elasticsearch.common.inject.Scopes$1$1.get(Scopes.java:56)

at  
org.elasticsearch.common.inject.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:49)

at  
org.elasticsearch.common.inject.InjectorBuilder$1.call(InjectorBuilder.java:204)

at  
org.elasticsearch.common.inject.InjectorBuilder$1.call(InjectorBuilder.java:197)

at  
org.elasticsearch.common.inject.InjectorImpl.callInContext(InjectorImpl.java:816)

at  
org.elasticsearch.common.inject.InjectorBuilder.loadEagerSingletons(InjectorBuilder.java:197)

at  
org.elasticsearch.common.inject.InjectorBuilder.injectDynamically(InjectorBuilder.java:179)

at  
org.elasticsearch.common.inject.InjectorBuilder.build(InjectorBuilder.java:114)

at org.elasticsearch.common.inject.Guice.createInjector(Guice.java:93)

at org.elasticsearch.common.inject.Guice.createInjector(Guice.java:70)

at  
org.elasticsearch.common.inject.ModulesBuilder.createInjector(ModulesBuilder.java:58)

at  
org.elasticsearch.node.internal.InternalNode.(InternalNode.java:147)

at org.elasticsearch.node.NodeBuilder.build(NodeBuilder.java:159)

at org.elasticsearch.node.NodeBuilder.node(NodeBuilder.java:166)

at com.personalization.utils.SearchClient.initClient(SearchClient.java:91)

at com.personalization.utils.SearchClient.getClient(SearchClient.java:41)

at  
com.personalization.services.search.impl.SearchServiceImpl.searchAutocomplete(SearchServiceImpl.java:517)

at  
com.personalization.services.search.worker.KeywordSearchWorkerImpl.execute(KeywordSearchWorkerImpl.java:17)

at  
com.personalization.services.search.workflow.SearchWorkflow.searchAutocomplete(SearchWorkflow.java:51)

at  
com.personalization.services.search.SearchService.searchAutoComplete(SearchService.java:198)

at  
com.personalization.search.SearchControler.autocomplete(SearchControler.java:60)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at  
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at  
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

at java.lang.reflect.Method.invoke(Method.java:597)

at  
org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:185)

at  
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126)

at  
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:100)

at  
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:502)

at  
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:465)

at  
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)

at  
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:863)

at  
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:792)

at  
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:851)

at  
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:767)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

at  
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

at  
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at  
org.springframework.mvc.extensions.flash.FlashMapFilter.doFilterInternal(FlashMapFilter.java:33)

at  
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

at  
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

at  
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at  
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)

at  
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)

at  
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)

at  
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

at  
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

at  
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)

at  
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)

at  
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)

at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)

at java.lang.Thread.run(Thread.java:662)

1. Error injecting constructor,  
java.nio.channels.OverlappingFileLockException

at org.elasticsearch.env.NodeEnvironment.(Unknown Source)

while locating org.elasticsearch.env.NodeEnvironment

for parameter 1 at  
org.elasticsearch.indices.InternalIndicesService.(Unknown Source)

while locating org.elasticsearch.indices.InternalIndicesService

while locating org.elasticsearch.indices.IndicesService

for parameter 4 at  
org.elasticsearch.cluster.metadata.MetaDataCreateIndexService.(Unknown  
Source)

while locating org.elasticsearch.cluster.metadata.MetaDataCreateIndexService

Caused by: java.nio.channels.OverlappingFileLockException

at  
sun.nio.ch.FileChannelImpl$SharedFileLockTable.checkList(FileChannelImpl.java:1166)

at  
sun.nio.ch.FileChannelImpl$SharedFileLockTable.add(FileChannelImpl.java:1068)

at sun.nio.ch.FileChannelImpl.tryLock(FileChannelImpl.java:868)

at java.nio.channels.FileChannel.tryLock(FileChannel.java:962)

at org.apache.lucene.store.NativeFSLock.obtain(NativeFSLockFactory.java:216)

at org.elasticsearch.env.NodeEnvironment.(NodeEnvironment.java:69)

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at  
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)

at  
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)

at java.lang.reflect.Constructor.newInstance(Constructor.java:513)

at  
org.elasticsearch.common.inject.DefaultConstructionProxyFactory$1.newInstance(DefaultConstructionProxyFactory.java:54)

at  
org.elasticsearch.common.inject.ConstructorInjector.construct(ConstructorInjector.java:86)

at  
org.elasticsearch.common.inject.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:103)

at  
org.elasticsearch.common.inject.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:45)

at  
org.elasticsearch.common.inject.InjectorImpl.callInContext(InjectorImpl.java:823)

at  
org.elasticsearch.common.inject.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:42)

at org.elasticsearch.common.inject.Scopes$1$1.get(Scopes.java:56)

at  
org.elasticsearch.common.inject.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:49)

at  
org.elasticsearch.common.inject.SingleParameterInjector.inject(SingleParameterInjector.java:42)

at  
org.elasticsearch.common.inject.SingleParameterInjector.getAll(SingleParameterInjector.java:66)

at  
org.elasticsearch.common.inject.ConstructorInjector.construct(ConstructorInjector.java:85)

at  
org.elasticsearch.common.inject.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:103)

at org.elasticsearch.common.inject.FactoryProxy.get(FactoryProxy.java:56)

at  
org.elasticsearch.common.inject.ProviderToInternalFactoryAdapter$1.call(ProviderToInternalFactoryAdapter.java:45)

at  
org.elasticsearch.common.inject.InjectorImpl.callInContext(InjectorImpl.java:823)

at  
org.elasticsearch.common.inject.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:42)

at org.elasticsearch.common.inject.Scopes$1$1.get(Scopes.java:56)

at  
org.elasticsearch.common.inject.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:49)

at  
org.elasticsearch.common.inject.SingleParameterInjector.inject(SingleParameterIn...

On Wed, Sep 14, 2011 at 4:01 AM, Shay Banon [kimchy@gmail.com](mailto:kimchy@gmail.com) wrote:

> I don't see the exception message with what you pasted (and can you please  
> gist it)?
> 
> The way local node works is that it does static level discovery of nodes  
> (static in the level of the same classloader). Your code will basically  
> start two instances of the node, which if started in a single class loader,  
> it will form a two node cluster.
> 
> If you want a single node, that is still local, make sure you find a way to  
> share the same Node and Client between the two web applications.
> 
> On Wed, Sep 14, 2011 at 3:54 AM, Carl Samson [samsoncarl@gmail.com](mailto:samsoncarl@gmail.com) wrote:
> 
> > I have 2 web applications running in the same JVM. The first one manage  
> > the index the second one searches the index.  
> > Both web applications use the same node in local mode
> > 
> > _Node node = nodeBuilder().clusterName('mycluster').local(true).node();_\*
> > 
> > Client client = node.client();\*  
> > The first web application invoking this code will get access to the client  
> > while the second one will hang for a while and then loop indefinitly. I got  
> > this error
> > 
> > ```
> > at
> > 
> > ```
> > 
> > org.elasticsearch.common.inject.InjectorBuilder.injectDynamically(Inj  
> > ectorBuilder.java:182)
> > 
> > ```
> > at
> > 
> > ```
> > 
> > org.elasticsearch.common.inject.InjectorBuilder.build(InjectorBuilder  
> > .java:114)  
> > at  
> > org.elasticsearch.common.inject.Guice.createInjector(Guice.java:93)  
> > at  
> > org.elasticsearch.common.inject.Guice.createInjector(Guice.java:70)  
> > at  
> > org.elasticsearch.common.inject.ModulesBuilder.createInjector(Modules  
> > Builder.java:58)  
> > at  
> > org.elasticsearch.node.internal.InternalNode.(InternalNode.java  
> > :147)  
> > at org.elasticsearch.node.NodeBuilder.build(NodeBuilder.java:159)  
> > at org.elasticsearch.node.NodeBuilder.node(NodeBuilder.java:166)
> > 
> > Is that a possible configuration ? what would be the way to use the same  
> > node from both web app. I am using version 0.17.0
> > 
> > Thanks

---

<div class="post-metadata">

**Author:** ![Carl\_Samson](https://avatars.discourse-cdn.com/v4/letter/c/b5a626/32.png) [@Carl\_Samson](https://discuss.elastic.co/u/Carl_Samson)\
**Post date:** [September 15, 2011, 12:47am UTC](https://discuss.elastic.co/t/2-java-web-applications-using-the-same-node-in-local-mode/5378/5 "2011-09-15T00:47:35Z")

</div>

I found my issue to be the same as this one. Any idea on a workaround ?

[http://elasticsearch-users.115913.n3.nabble.com/QA-Infinite-loop-when-catching-failure-due-to-file-path-error-td2984771.html](http://elasticsearch-users.115913.n3.nabble.com/QA-Infinite-loop-when-catching-failure-due-to-file-path-error-td2984771.html)

On Wed, Sep 14, 2011 at 4:01 AM, Shay Banon [kimchy@gmail.com](mailto:kimchy@gmail.com) wrote:

> I don't see the exception message with what you pasted (and can you please  
> gist it)?
> 
> The way local node works is that it does static level discovery of nodes  
> (static in the level of the same classloader). Your code will basically  
> start two instances of the node, which if started in a single class loader,  
> it will form a two node cluster.
> 
> If you want a single node, that is still local, make sure you find a way to  
> share the same Node and Client between the two web applications.
> 
> On Wed, Sep 14, 2011 at 3:54 AM, Carl Samson [samsoncarl@gmail.com](mailto:samsoncarl@gmail.com) wrote:
> 
> > I have 2 web applications running in the same JVM. The first one manage  
> > the index the second one searches the index.  
> > Both web applications use the same node in local mode
> > 
> > _Node node = nodeBuilder().clusterName('mycluster').local(true).node();_\*
> > 
> > Client client = node.client();\*  
> > The first web application invoking this code will get access to the client  
> > while the second one will hang for a while and then loop indefinitly. I got  
> > this error
> > 
> > ```
> > at
> > 
> > ```
> > 
> > org.elasticsearch.common.inject.InjectorBuilder.injectDynamically(Inj  
> > ectorBuilder.java:182)
> > 
> > ```
> > at
> > 
> > ```
> > 
> > org.elasticsearch.common.inject.InjectorBuilder.build(InjectorBuilder  
> > .java:114)  
> > at  
> > org.elasticsearch.common.inject.Guice.createInjector(Guice.java:93)  
> > at  
> > org.elasticsearch.common.inject.Guice.createInjector(Guice.java:70)  
> > at  
> > org.elasticsearch.common.inject.ModulesBuilder.createInjector(Modules  
> > Builder.java:58)  
> > at  
> > org.elasticsearch.node.internal.InternalNode.(InternalNode.java  
> > :147)  
> > at org.elasticsearch.node.NodeBuilder.build(NodeBuilder.java:159)  
> > at org.elasticsearch.node.NodeBuilder.node(NodeBuilder.java:166)
> > 
> > Is that a possible configuration ? what would be the way to use the same  
> > node from both web app. I am using version 0.17.0
> > 
> > Thanks

---

<div class="post-metadata">

**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\
**Post date:** [September 15, 2011, 9:37am UTC](https://discuss.elastic.co/t/2-java-web-applications-using-the-same-node-in-local-mode/5378/6 "2011-09-15T09:37:24Z")

</div>

You will create two instances of the Node, thats not what you want. You need  
to somehow share the _same_ instance between the two web apps. Even if you  
did manage to start two instances, you will have two instances ... .

On Thu, Sep 15, 2011 at 3:47 AM, Carl Samson [samsoncarl@gmail.com](mailto:samsoncarl@gmail.com) wrote:

> I found my issue to be the same as this one. Any idea on a workaround ?
> 
> [http://elasticsearch-users.115913.n3.nabble.com/QA-Infinite-loop-when-catching-failure-due-to-file-path-error-td2984771.html](http://elasticsearch-users.115913.n3.nabble.com/QA-Infinite-loop-when-catching-failure-due-to-file-path-error-td2984771.html)
> 
> On Wed, Sep 14, 2011 at 4:01 AM, Shay Banon [kimchy@gmail.com](mailto:kimchy@gmail.com) wrote:
> 
> > I don't see the exception message with what you pasted (and can you please  
> > gist it)?
> > 
> > The way local node works is that it does static level discovery of nodes  
> > (static in the level of the same classloader). Your code will basically  
> > start two instances of the node, which if started in a single class loader,  
> > it will form a two node cluster.
> > 
> > If you want a single node, that is still local, make sure you find a way  
> > to share the same Node and Client between the two web applications.
> > 
> > On Wed, Sep 14, 2011 at 3:54 AM, Carl Samson [samsoncarl@gmail.com](mailto:samsoncarl@gmail.com)wrote:
> > 
> > > I have 2 web applications running in the same JVM. The first one manage  
> > > the index the second one searches the index.  
> > > Both web applications use the same node in local mode
> > > 
> > > _Node node = nodeBuilder().clusterName('mycluster').local(true).node();_  
> > > \*  
> > > Client client = node.client();\*  
> > > The first web application invoking this code will get access to the  
> > > client while the second one will hang for a while and then loop indefinitly.  
> > > I got this error
> > > 
> > > ```
> > > at
> > > 
> > > ```
> > > 
> > > org.elasticsearch.common.inject.InjectorBuilder.injectDynamically(Inj  
> > > ectorBuilder.java:182)
> > > 
> > > ```
> > > at
> > > 
> > > ```
> > > 
> > > org.elasticsearch.common.inject.InjectorBuilder.build(InjectorBuilder  
> > > .java:114)  
> > > at  
> > > org.elasticsearch.common.inject.Guice.createInjector(Guice.java:93)  
> > > at  
> > > org.elasticsearch.common.inject.Guice.createInjector(Guice.java:70)  
> > > at  
> > > org.elasticsearch.common.inject.ModulesBuilder.createInjector(Modules  
> > > Builder.java:58)  
> > > at  
> > > org.elasticsearch.node.internal.InternalNode.(InternalNode.java  
> > > :147)  
> > > at org.elasticsearch.node.NodeBuilder.build(NodeBuilder.java:159)  
> > > at org.elasticsearch.node.NodeBuilder.node(NodeBuilder.java:166)
> > > 
> > > Is that a possible configuration ? what would be the way to use the same  
> > > node from both web app. I am using version 0.17.0
> > > 
> > > Thanks

---

<div class="post-metadata">

**Author:** ![Carl\_Samson](https://avatars.discourse-cdn.com/v4/letter/c/b5a626/32.png) [@Carl\_Samson](https://discuss.elastic.co/u/Carl_Samson)\
**Post date:** [September 15, 2011, 1:21pm UTC](https://discuss.elastic.co/t/2-java-web-applications-using-the-same-node-in-local-mode/5378/7 "2011-09-15T13:21:37Z")

</div>

Yes there are 2 instances trying to share the same data (what i wanted) but netty locks the files for the first client who get access to the files. I have to start a new node seperatly and use transport client from my 2 web apps.

Any way to avoid those file lock so 2 instances can share the same data ?

Thanks

Sent from my iPhone

On 2011-09-15, at 5:37 AM, Shay Banon [kimchy@gmail.com](mailto:kimchy@gmail.com) wrote:

> You will create two instances of the Node, thats not what you want. You need to somehow share the _same_ instance between the two web apps. Even if you did manage to start two instances, you will have two instances ... .
> 
> On Thu, Sep 15, 2011 at 3:47 AM, Carl Samson [samsoncarl@gmail.com](mailto:samsoncarl@gmail.com) wrote:  
> I found my issue to be the same as this one. Any idea on a workaround ?
> 
> [http://elasticsearch-users.115913.n3.nabble.com/QA-Infinite-loop-when-catching-failure-due-to-file-path-error-td2984771.html](http://elasticsearch-users.115913.n3.nabble.com/QA-Infinite-loop-when-catching-failure-due-to-file-path-error-td2984771.html)
> 
> On Wed, Sep 14, 2011 at 4:01 AM, Shay Banon [kimchy@gmail.com](mailto:kimchy@gmail.com) wrote:  
> I don't see the exception message with what you pasted (and can you please gist it)?
> 
> The way local node works is that it does static level discovery of nodes (static in the level of the same classloader). Your code will basically start two instances of the node, which if started in a single class loader, it will form a two node cluster.
> 
> If you want a single node, that is still local, make sure you find a way to share the same Node and Client between the two web applications.
> 
> On Wed, Sep 14, 2011 at 3:54 AM, Carl Samson [samsoncarl@gmail.com](mailto:samsoncarl@gmail.com) wrote:  
> I have 2 web applications running in the same JVM. The first one manage the index the second one searches the index.  
> Both web applications use the same node in local mode
> 
> Node node = nodeBuilder().clusterName('mycluster').local(true).node();  
> Client client = node.client();  
> The first web application invoking this code will get access to the client while the second one will hang for a while and then loop indefinitly. I got this error
> 
> ```
> at org.elasticsearch.common.inject.InjectorBuilder.injectDynamically(Inj
> 
> ```
> 
> ectorBuilder.java:182)
> 
> ```
> at org.elasticsearch.common.inject.InjectorBuilder.build(InjectorBuilder
> 
> ```
> 
> .java:114)  
> at org.elasticsearch.common.inject.Guice.createInjector(Guice.java:93)  
> at org.elasticsearch.common.inject.Guice.createInjector(Guice.java:70)  
> at org.elasticsearch.common.inject.ModulesBuilder.createInjector(Modules  
> Builder.java:58)  
> at org.elasticsearch.node.internal.InternalNode.(InternalNode.java  
> :147)  
> at org.elasticsearch.node.NodeBuilder.build(NodeBuilder.java:159)  
> at org.elasticsearch.node.NodeBuilder.node(NodeBuilder.java:166)
> 
> Is that a possible configuration ? what would be the way to use the same node from both web app. I am using version 0.17.0
> 
> Thanks

---

<div class="post-metadata">

**Author:** ![kimchy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kimchy/32/44952_2.png) [@kimchy](https://discuss.elastic.co/u/kimchy)\
**Post date:** [September 16, 2011, 6:46pm UTC](https://discuss.elastic.co/t/2-java-web-applications-using-the-same-node-in-local-mode/5378/8 "2011-09-16T18:46:58Z")

</div>

You can't have two instances that share the same data directory (its not  
netty that locks the directory). You either start one, and talk to the  
second one (can't use local nodes in this case), or somehow share the same  
instance across both webapps.

On Thu, Sep 15, 2011 at 4:21 PM, Carl Samson - GMail  
[samsoncarl@gmail.com](mailto:samsoncarl@gmail.com)wrote:

> Yes there are 2 instances trying to share the same data (what i wanted) but  
> netty locks the files for the first client who get access to the files. I  
> have to start a new node seperatly and use transport client from my 2 web  
> apps.
> 
> Any way to avoid those file lock so 2 instances can share the same data ?
> 
> Thanks
> 
> Sent from my iPhone
> 
> On 2011-09-15, at 5:37 AM, Shay Banon [kimchy@gmail.com](mailto:kimchy@gmail.com) wrote:
> 
> You will create two instances of the Node, thats not what you want. You  
> need to somehow share the _same_ instance between the two web apps. Even if  
> you did manage to start two instances, you will have two instances ... .
> 
> On Thu, Sep 15, 2011 at 3:47 AM, Carl Samson \< [samsoncarl@gmail.com](mailto:samsoncarl@gmail.com)  
> [samsoncarl@gmail.com](mailto:samsoncarl@gmail.com)\> wrote:
> 
> > I found my issue to be the same as this one. Any idea on a workaround ?
> > 
> > [http://elasticsearch-users.115913.n3.nabble.com/QA-Infinite-loop-when-catching-failure-due-to-file-path-error-td2984771.html](http://elasticsearch-users.115913.n3.nabble.com/QA-Infinite-loop-when-catching-failure-due-to-file-path-error-td2984771.html)  
> > [http://elasticsearch-users.115913.n3.nabble.com/QA-Infinite-loop-when-catching-failure-due-to-file-path-error-td2984771.html](http://elasticsearch-users.115913.n3.nabble.com/QA-Infinite-loop-when-catching-failure-due-to-file-path-error-td2984771.html)
> > 
> > On Wed, Sep 14, 2011 at 4:01 AM, Shay Banon \< [kimchy@gmail.com](mailto:kimchy@gmail.com)  
> > [kimchy@gmail.com](mailto:kimchy@gmail.com)\> wrote:
> > 
> > > I don't see the exception message with what you pasted (and can you  
> > > please gist it)?
> > > 
> > > The way local node works is that it does static level discovery of nodes  
> > > (static in the level of the same classloader). Your code will basically  
> > > start two instances of the node, which if started in a single class loader,  
> > > it will form a two node cluster.
> > > 
> > > If you want a single node, that is still local, make sure you find a way  
> > > to share the same Node and Client between the two web applications.
> > > 
> > > On Wed, Sep 14, 2011 at 3:54 AM, Carl Samson \< [samsoncarl@gmail.com](mailto:samsoncarl@gmail.com)  
> > > [samsoncarl@gmail.com](mailto:samsoncarl@gmail.com)\> wrote:
> > > 
> > > > I have 2 web applications running in the same JVM. The first one manage  
> > > > the index the second one searches the index.  
> > > > Both web applications use the same node in local mode
> > > > 
> > > > _Node node = nodeBuilder().clusterName('mycluster').local(true).node();  
> > > > \*\*  
> > > > Client client = node.client();_  
> > > > The first web application invoking this code will get access to the  
> > > > client while the second one will hang for a while and then loop indefinitly.  
> > > > I got this error
> > > > 
> > > > ```
> > > > at
> > > > 
> > > > ```
> > > > 
> > > > org.elasticsearch.common.inject.InjectorBuilder.injectDynamically(Inj  
> > > > ectorBuilder.java:182)
> > > > 
> > > > ```
> > > > at
> > > > 
> > > > ```
> > > > 
> > > > org.elasticsearch.common.inject.InjectorBuilder.build(InjectorBuilder  
> > > > .java:114)  
> > > > at  
> > > > org.elasticsearch.common.inject.Guice.createInjector(Guice.java:93)  
> > > > at  
> > > > org.elasticsearch.common.inject.Guice.createInjector(Guice.java:70)  
> > > > at  
> > > > org.elasticsearch.common.inject.ModulesBuilder.createInjector(Modules  
> > > > Builder.java:58)  
> > > > at  
> > > > org.elasticsearch.node.internal.InternalNode.(InternalNode.java  
> > > > :147)  
> > > > at  
> > > > org.elasticsearch.node.NodeBuilder.build(NodeBuilder.java:159)  
> > > > at org.elasticsearch.node.NodeBuilder.node(NodeBuilder.java:166)
> > > > 
> > > > Is that a possible configuration ? what would be the way to use the same  
> > > > node from both web app. I am using version 0.17.0
> > > > 
> > > > Thanks

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 3:54am UTC](https://discuss.elastic.co/t/2-java-web-applications-using-the-same-node-in-local-mode/5378/9 "2017-07-06T03:54:16Z")

</div>