Monday, February 20, 2012

MongoDB - Replica Sets with Spring Data MongoDB (Part 3)

Review

In the previous section, we have installed and configured our servers for MongoDB replication. In this section, we will update our Spring application to support MongoDB Replica Sets.


Spring App Configuration

We have setup a MongoDB Replica Set using four servers, and we've examined the output from the logs and verified that all instances are running. Our next step is to configure our Spring MongoDB-base application.

Since we're reusing our application from the tutorial Spring MVC 3.1 - Implement CRUD with Spring Data MongoDB, adding a MongoDB Replica Set support in Spring is trivial. All we need to do is modify the spring.properties file with the following contents (this file is located under the WEB-INF directory):



Then we have to modify as well the spring-data.xml file with the following updates:



That's all we need to for our Spring application!

Next

In the next section, we will run and test our servers to verify and test our MongoDB cluster for replication. Click here to proceed.
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6 comments:

  1. do you have replica with Credential ?

    ReplyDelete
  2. Hi Mark,

    I am getting the below issue when using the replica set as above

    Cannot resolve reference to bean 'mongoReplicaSet' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mongoReplicaSet': Initialization of bean failed; nested exception is org.springframework.beans.ConversionNotSupportedException: Failed to convert property value of type [java.lang.String] to required type [com.mongodb.ServerAddress[]] for property 'replicaSetSeeds'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [java.lang.String] to required type [com.mongodb.ServerAddress] for property 'replicaSetSeeds[0]': no matching editors or conversion strategy found

    Could you please help me resolve this issue

    Thanks,
    Ram

    ReplyDelete
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