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Type:
Bug
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Resolution: Done
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Priority:
Minor - P4
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Affects Version/s: 3.0.0
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Component/s: Command Operations
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None
I am trying to unlock a locked 3.x database.
public static void unlockMongoDB(MongoClient m) throws Exception { String context = "MongoDBHelper-unlockMongoDB: "; Logger.info(context + "Checking if MongoDB instance needs to be unlocked"); if(m.isLocked()) { Logger.info(context + "Unlocking MongoDB instance"); m.unlock(); } }
isLocked() fails with the following stack trace
13 Jul 2015 02:20:20,893 ERROR ~ Prematurely reached end of stream
13 Jul 2015 02:20:20,894 ERROR ~ com.mongodb.MongoSocketReadException: Prematurely reached end of stream
at com.mongodb.connection.SocketStream.read(SocketStream.java:88)
at com.mongodb.connection.InternalStreamConnection.receiveResponseBuffers(InternalStreamConnection.java:491)
at com.mongodb.connection.InternalStreamConnection.receiveMessage(InternalStreamConnection.java:221)
at com.mongodb.connection.UsageTrackingInternalConnection.receiveMessage(UsageTrackingInternalConnection.java:102)
at com.mongodb.connection.DefaultConnectionPool$PooledConnection.receiveMessage(DefaultConnectionPool.java:416)
at com.mongodb.connection.QueryProtocol.receiveMessage(QueryProtocol.java:282)
at com.mongodb.connection.QueryProtocol.execute(QueryProtocol.java:229)
at com.mongodb.connection.QueryProtocol.execute(QueryProtocol.java:38)
at com.mongodb.connection.DefaultServer$DefaultServerProtocolExecutor.execute(DefaultServer.java:155)
at com.mongodb.connection.DefaultServerConnection.executeProtocol(DefaultServerConnection.java:219)
at com.mongodb.connection.DefaultServerConnection.query(DefaultServerConnection.java:166)
at com.mongodb.operation.FindOperation$1.call(FindOperation.java:397)
at com.mongodb.operation.FindOperation$1.call(FindOperation.java:394)
at com.mongodb.operation.OperationHelper.withConnectionSource(OperationHelper.java:195)
at com.mongodb.operation.OperationHelper.withConnection(OperationHelper.java:168)
at com.mongodb.operation.FindOperation.execute(FindOperation.java:394)
at com.mongodb.operation.FindOperation.execute(FindOperation.java:57)
at com.mongodb.Mongo.execute(Mongo.java:738)
at com.mongodb.Mongo$2.execute(Mongo.java:725)
at com.mongodb.DBCollection.findOne(DBCollection.java:737)
at com.mongodb.DBCollection.findOne(DBCollection.java:710)
at com.mongodb.DBCollection.findOne(DBCollection.java:657)
at com.mongodb.DBCollection.findOne(DBCollection.java:646)
at com.mongodb.Mongo.isLocked(Mongo.java:574)
Also I have noticed that if I pass the MongoClient object to another function and unlock it, the unlock appears to hang. If I use a try {} finally {} and unlock, it appears to go through.