Hi all,
I've tried to connect to the cassandra 3.0 cluster, using datastax java
driver, but I got the following exception when I tried to craete
MappingManager:
Caused by: com.datastax.driver.core.exceptions.CodecNotFoundException:
Codec not found for requested operation:
[varchar <-> V]
at
com.datastax.driver.core.CodecRegistry.newException(CodecRegistry.java:647)
at
com.datastax.driver.core.CodecRegistry.createCodec(CodecRegistry.java:499)
at
com.datastax.driver.core.CodecRegistry.findCodec(CodecRegistry.java:481)
at
com.datastax.driver.core.CodecRegistry.maybeCreateCodec(CodecRegistry.java:554)
at
com.datastax.driver.core.CodecRegistry.createCodec(CodecRegistry.java:497)
at
com.datastax.driver.core.CodecRegistry.findCodec(CodecRegistry.java:481)
at
com.datastax.driver.core.CodecRegistry.access$400(CodecRegistry.java:143)
at
com.datastax.driver.core.CodecRegistry$1.load(CodecRegistry.java:295)
at
com.datastax.driver.core.CodecRegistry$1.load(CodecRegistry.java:293)
at
com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3522)
at
com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2315)
at
com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2278)
at
com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2193)
at com.google.common.cache.LocalCache.get(LocalCache.java:3932)
at
com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3936)
at
com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4806)
at
com.datastax.driver.core.CodecRegistry.lookupCodec(CodecRegistry.java:457)
at
com.datastax.driver.core.CodecRegistry.codecFor(CodecRegistry.java:426)
at
com.datastax.driver.core.AbstractGettableByIndexData.codecFor(AbstractGettableByIndexData.java:89)
at
com.datastax.driver.core.AbstractGettableByIndexData.getMap(AbstractGettableByIndexData.java:390)
at
com.datastax.driver.core.AbstractGettableData.getMap(AbstractGettableData.java:26)
at
com.datastax.driver.core.AbstractGettableByIndexData.getMap(AbstractGettableByIndexData.java:378)
at
com.datastax.driver.core.AbstractGettableData.getMap(AbstractGettableData.java:26)
at
com.datastax.driver.core.AbstractGettableData.getMap(AbstractGettableData.java:233)
at
com.datastax.driver.core.KeyspaceMetadata.build(KeyspaceMetadata.java:70)
at
com.datastax.driver.core.SchemaParser.buildKeyspaces(SchemaParser.java:116)
at
com.datastax.driver.core.SchemaParser.refresh(SchemaParser.java:61)
at
com.datastax.driver.core.ControlConnection.refreshSchema(ControlConnection.java:328)
at
com.datastax.driver.core.ControlConnection.tryConnect(ControlConnection.java:258)
at
com.datastax.driver.core.ControlConnection.reconnectInternal(ControlConnection.java:185)
at
com.datastax.driver.core.ControlConnection.connect(ControlConnection.java:77)
at com.datastax.driver.core.Cluster$Manager.init(Cluster.java:1372)
at com.datastax.driver.core.Cluster.init(Cluster.java:160)
at
com.datastax.driver.core.SessionManager.initAsync(SessionManager.java:75)
at
com.datastax.driver.core.SessionManager.init(SessionManager.java:67)
at
com.datastax.driver.mapping.MappingManager.getProtocolVersion(MappingManager.java:65)
at
com.datastax.driver.mapping.MappingManager.<init>(MappingManager.java:56)
Could you please say what does it mean?
