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Type:
Task
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Resolution: Done
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Priority:
Major - P3
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None
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Affects Version/s: 2.10.1
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Component/s: Cluster Management
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Labels:None
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Environment:JDK 1.6 with Ubuntu 12.04
Hello I am using Mongo Java Driver 2.10.1 and I am trying to reconfigure a replica set configuration by using Mongo Java Driver.
Initially I have four Mongo servers started up with next configuration:
{
"_id" : "rs-test",
"version" : 1,
members : [
{_id : 0, host : "localhost:27017"},
{_id : 1, host : "localhost:27018"},
{_id : 2, host : "localhost:27019"},
{_id : 3, host : "localhost:27020"}
]
}
Then I have my test which tries to reconfig this replica set by sending next document:
{
"_id" : "rs-test",
"version" : 2,
members : [
{_id : 0, host : "localhost:27017"},
{_id : 1, host : "localhost:27018"},
{_id : 2, host : "localhost:27019"},
{_id : 3, host : "localhost:27020", arbiterOnly: true}
]
}
And Java code:
MongoClient mongoClient = new MongoClient("localhost", 27017); BasicDBObject basicDBObject = new BasicDBObject(); basicDBObject.put("replSetReconfig",JSON.parse(DOCUMENT)); DB db = mongoClient.getDB("admin"); CommandResult command = db.command(basicDBObject); System.out.println(command);
And then next exception is returned:
emptying DBPortPool to localhost/127.0.0.1:27017 b/c of error
java.io.EOFException
at org.bson.io.Bits.readFully(Bits.java:48)
at org.bson.io.Bits.readFully(Bits.java:33)
at org.bson.io.Bits.readFully(Bits.java:28)
at com.mongodb.Response.<init>(Response.java:40)
at com.mongodb.DBPort.go(DBPort.java:124)
at com.mongodb.DBPort.call(DBPort.java:74)
at com.mongodb.DBTCPConnector.innerCall(DBTCPConnector.java:286)
at com.mongodb.DBTCPConnector.call(DBTCPConnector.java:257)
at com.mongodb.DBApiLayer$MyCollection.__find(DBApiLayer.java:310)
at com.mongodb.DB.command(DB.java:274)
at com.mongodb.DB.command(DB.java:256)
at com.mongodb.DB.command(DB.java:313)
at com.mongodb.DB.command(DB.java:211)
at MyTest.test(MyTest.java:32)
at MyTest.main(MyTest.java:40)
Exception in thread "main" com.mongodb.MongoException$Network: can't call something : localhost/127.0.0.1:27017/admin
at com.mongodb.DBTCPConnector.innerCall(DBTCPConnector.java:295)
at com.mongodb.DBTCPConnector.call(DBTCPConnector.java:257)
at com.mongodb.DBApiLayer$MyCollection.__find(DBApiLayer.java:310)
at com.mongodb.DB.command(DB.java:274)
at com.mongodb.DB.command(DB.java:256)
at com.mongodb.DB.command(DB.java:313)
at com.mongodb.DB.command(DB.java:211)
at MyTest.test(MyTest.java:32)
at MyTest.main(MyTest.java:40)
Caused by: java.io.EOFException
at org.bson.io.Bits.readFully(Bits.java:48)
at org.bson.io.Bits.readFully(Bits.java:33)
at org.bson.io.Bits.readFully(Bits.java:28)
at com.mongodb.Response.<init>(Response.java:40)
at com.mongodb.DBPort.go(DBPort.java:124)
at com.mongodb.DBPort.call(DBPort.java:74)
at com.mongodb.DBTCPConnector.innerCall(DBTCPConnector.java:286)
... 8 more
If I go to mongo shell and I type rs.conf() at first time an errno:2 is also shown but then tries to reconnect again and then it works as expected and shows that server with id 3 is hidden. So it seems like command is send successful. Is there any way to avoid that Mongo Driver throws an exception? Maybe me as a user of Mongo Java Driver should implement a recovery function? (basically catching the exception and not propagating it?).
Also I have tried by registering all servers in MongoClient but same exception is thrown.
Thank you very much in advance for your help.