Major Description
When persistence-enabled cluster is activated for the first time, it saves information about cluster nodes into BaselineTopology, including user attributes.
It turned out that in case of cluster started with ZookeeperDiscoverySpi on first activation instances of ZookeeperClusterNode are persisted to disk within BaselineTopology.
After that the same nodes cannot be switched to TcpDiscoverySpi without having ignite-zookeeper.jar on classpath, an attempt to start cluster results in the following exception:
org.apache.ignite.IgniteCheckedException: Failed to start processor: GridProcessorAdapter [] at org.apache.ignite.internal.IgniteKernal.startProcessor(IgniteKernal.java:1754) at org.apache.ignite.internal.IgniteKernal.start(IgniteKernal.java:998) at org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance.start0(IgnitionEx.java:2014) at org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance.start(IgnitionEx.java:1723) at org.apache.ignite.internal.IgnitionEx.start0(IgnitionEx.java:1151) at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:671) at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:596) at org.apache.ignite.Ignition.start(Ignition.java:327) ... 33 common frames omitted Caused by: org.apache.ignite.IgniteCheckedException: Failed to find class with given class loader for unmarshalling (make sure same versions of all classes are available on all nodes or enable peer-class-loading) [clsLdr=union-module-impl:com.sbt.core.envelope.container.loader.ImplClassLoader@7e532bb8, cls=org.apache.ignite.spi.discovery.zk.internal.ZookeeperClusterNode$1] at org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal0(JdkMarshaller.java:144) at org.apache.ignite.marshaller.AbstractNodeNameAwareMarshaller.unmarshal(AbstractNodeNameAwareMarshaller.java:94) at org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal0(JdkMarshaller.java:161) at org.apache.ignite.marshaller.AbstractNodeNameAwareMarshaller.unmarshal(AbstractNodeNameAwareMarshaller.java:82) at org.apache.ignite.internal.processors.cache.persistence.metastorage.MetaStorage.read(MetaStorage.java:158) at org.apache.ignite.internal.processors.cluster.GridClusterStateProcessor.onReadyForRead(GridClusterStateProcessor.java:216) at org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager.notifyMetastorageReadyForRead(GridCacheDatabaseSharedManager.java:437) at org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager.readMetastore(GridCacheDatabaseSharedManager.java:633) at org.apache.ignite.internal.processors.cache.persistence.GridCacheDatabaseSharedManager.start0(GridCacheDatabaseSharedManager.java:539) at org.apache.ignite.internal.processors.cache.GridCacheSharedManagerAdapter.start(GridCacheSharedManagerAdapter.java:61) at org.apache.ignite.internal.processors.cache.GridCacheProcessor.start(GridCacheProcessor.java:700) at org.apache.ignite.internal.IgniteKernal.startProcessor(IgniteKernal.java:1751) ... 40 common frames omitted Caused by: java.lang.ClassNotFoundException: org.apache.ignite.spi.discovery.zk.internal.ZookeeperClusterNode$1 at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at org.apache.ignite.internal.util.IgniteUtils.forName(IgniteUtils.java:8608) at org.apache.ignite.marshaller.jdk.JdkMarshallerObjectInputStream.resolveClass(JdkMarshallerObjectInputStream.java:59) at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1819) at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1713) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1986) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1919) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1529) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2231) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2155) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2013) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2231) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2155) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2013) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:422) at java.util.HashMap.readObject(HashMap.java:1404) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1058) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2122) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2013) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2231) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2155) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2013) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1535) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:422) at org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal0(JdkMarshaller.java:139) ... 51 common frames omitted
We should prevent ZookeeperClusterNode instances to be persisted to disk.
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