线程“主”com.datastax.driver.core.exceptions.ServerError 中的异常：服务器端发生意外错误答案

【问题标题】：Exception in thread "main" com.datastax.driver.core.exceptions.ServerError: An unexpected error occurred server side on线程“主”com.datastax.driver.core.exceptions.ServerError 中的异常：服务器端发生意外错误
【发布时间】：2018-07-27 15:12:25
【问题描述】：

在尝试使用分页支持从 cassandra 获取大约 500000 条记录时，我有时会观察到以下异常。请注意，这是一个间歇性异常，每次运行程序时都不会出现。

Cassandra 版本：3.10 Datastax 驱动程序：3.1.0

Statement statement = new SimpleStatement("select * from mytable");
rs = session.execute(stmt);
        for (Row row : rs) {
            if (rs.getAvailableWithoutFetching() == 100) {
                rs.fetchMoreResults();
            }
            // Do something with row 
        }

有时在获取大约 200000 条记录后，程序会失败并出现以下异常：

Exception in thread "main" com.datastax.driver.core.exceptions.ServerError: An unexpected error occurred server side on myhost:9042: com.google.common.util.concurrent.UncheckedExecutionException: com.google.common.util.concurrent.UncheckedExecutionException: java.lang.RuntimeException: Invalid metadata has been detected for role myuser
    at com.datastax.driver.core.exceptions.ServerError.copy(ServerError.java:63)
    at com.datastax.driver.core.exceptions.ServerError.copy(ServerError.java:25)
    at com.datastax.driver.core.DriverThrowables.propagateCause(DriverThrowables.java:37)
    at com.datastax.driver.core.ArrayBackedResultSet$MultiPage.prepareNextRow(ArrayBackedResultSet.java:312)
    at com.datastax.driver.core.ArrayBackedResultSet$MultiPage.isExhausted(ArrayBackedResultSet.java:269)
    at com.datastax.driver.core.ArrayBackedResultSet$1.hasNext(ArrayBackedResultSet.java:143)
Caused by: com.datastax.driver.core.exceptions.ServerError: An unexpected error occurred server side on myhost:9042: com.google.common.util.concurrent.UncheckedExecutionException: com.google.common.util.concurrent.UncheckedExecutionException: java.lang.RuntimeException: Invalid metadata has been detected for role myuser
    at com.datastax.driver.core.Responses$Error.asException(Responses.java:108)
    at com.datastax.driver.core.RequestHandler$SpeculativeExecution.onSet(RequestHandler.java:500)
    at com.datastax.driver.core.Connection$Dispatcher.channelRead0(Connection.java:1012)
    at com.datastax.driver.core.Connection$Dispatcher.channelRead0(Connection.java:935)
    at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:328)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:321)
    at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:266)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:328)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:321)
    at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:328)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:321)
    at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:293)
    at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:267)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:328)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:321)
    at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1280)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:342)
    at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:328)
    at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:890)
    at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)
    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:564)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:505)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:419)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:391)
    at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:112)
    at java.lang.Thread.run(Thread.java:748)

Cassandra 日志：

WARN  [Native-Transport-Requests-1] 2018-01-09 10:07:31,832 CassandraRoleManager.java:96 - An invalid value has been detected in the roles table for role myuser. If you are unable to login, you may need to disable authentication and confirm that values in that table are accurate
ERROR [Native-Transport-Requests-1] 2018-01-09 10:07:31,833 QueryMessage.java:129 - Unexpected error during query
com.google.common.util.concurrent.UncheckedExecutionException: com.google.common.util.concurrent.UncheckedExecutionException: java.lang.RuntimeException: Invalid metadata has been detected for role myuser
        at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2203) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache.get(LocalCache.java:3937) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3941) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4824) ~[guava-18.0.jar:na]
        at org.apache.cassandra.auth.AuthCache.get(AuthCache.java:108) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.PermissionsCache.getPermissions(PermissionsCache.java:45) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.AuthenticatedUser.getPermissions(AuthenticatedUser.java:104) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.service.ClientState.authorize(ClientState.java:419) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.service.ClientState.checkPermissionOnResourceChain(ClientState.java:352) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.service.ClientState.ensureHasPermission(ClientState.java:329) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.service.ClientState.hasAccess(ClientState.java:316) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.service.ClientState.hasColumnFamilyAccess(ClientState.java:300) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.cql3.statements.SelectStatement.checkAccess(SelectStatement.java:221) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:214) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:248) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:233) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.transport.messages.QueryMessage.execute(QueryMessage.java:116) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:517) [apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:410) [apache-cassandra-3.10.jar:3.10]
        at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) [netty-all-4.0.39.Final.jar:4.0.39.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:366) [netty-all-4.0.39.Final.jar:4.0.39.Final]
        at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:35) [netty-all-4.0.39.Final.jar:4.0.39.Final]
        at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:357) [netty-all-4.0.39.Final.jar:4.0.39.Final]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_152]
        at org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:162) [apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:109) [apache-cassandra-3.10.jar:3.10]
        at java.lang.Thread.run(Thread.java:748) [na:1.8.0_152]
Caused by: com.google.common.util.concurrent.UncheckedExecutionException: java.lang.RuntimeException: Invalid metadata has been detected for role myuser
        at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2203) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache.get(LocalCache.java:3937) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3941) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4824) ~[guava-18.0.jar:na]
        at org.apache.cassandra.auth.AuthCache.get(AuthCache.java:108) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.RolesCache.getRoles(RolesCache.java:44) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.Roles.hasSuperuserStatus(Roles.java:51) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.AuthenticatedUser.isSuper(AuthenticatedUser.java:71) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.CassandraAuthorizer.authorize(CassandraAuthorizer.java:81) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.PermissionsCache.lambda$new$0(PermissionsCache.java:37) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.AuthCache$1.load(AuthCache.java:183) ~[apache-cassandra-3.10.jar:3.10]
        at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3527) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2319) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2282) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2197) ~[guava-18.0.jar:na]
        ... 26 common frames omitted
Caused by: java.lang.RuntimeException: Invalid metadata has been detected for role myuser
        at org.apache.cassandra.auth.CassandraRoleManager$1.apply(CassandraRoleManager.java:99) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.CassandraRoleManager$1.apply(CassandraRoleManager.java:82) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.CassandraRoleManager.getRoleFromTable(CassandraRoleManager.java:528) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.CassandraRoleManager.getRole(CassandraRoleManager.java:503) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.CassandraRoleManager.getRoles(CassandraRoleManager.java:281) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.RolesCache.lambda$new$0(RolesCache.java:36) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.AuthCache$1.load(AuthCache.java:183) ~[apache-cassandra-3.10.jar:3.10]
        at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3527) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2319) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2282) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2197) ~[guava-18.0.jar:na]
        ... 40 common frames omitted
Caused by: java.lang.NullPointerException: null
        at org.apache.cassandra.cql3.UntypedResultSet$Row.getBoolean(UntypedResultSet.java:273) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.CassandraRoleManager$1.apply(CassandraRoleManager.java:88) ~[apache-cassandra-3.10.jar:3.10]
        ... 50 common frames omitted
ERROR [Native-Transport-Requests-1] 2018-01-09 10:07:31,834 ErrorMessage.java:384 - Unexpected exception during request
com.google.common.util.concurrent.UncheckedExecutionException: com.google.common.util.concurrent.UncheckedExecutionException: java.lang.RuntimeException: Invalid metadata has been detected for role myuser
        at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2203) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache.get(LocalCache.java:3937) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3941) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4824) ~[guava-18.0.jar:na]
        at org.apache.cassandra.auth.AuthCache.get(AuthCache.java:108) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.PermissionsCache.getPermissions(PermissionsCache.java:45) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.AuthenticatedUser.getPermissions(AuthenticatedUser.java:104) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.service.ClientState.authorize(ClientState.java:419) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.service.ClientState.checkPermissionOnResourceChain(ClientState.java:352) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.service.ClientState.ensureHasPermission(ClientState.java:329) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.service.ClientState.hasAccess(ClientState.java:316) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.service.ClientState.hasColumnFamilyAccess(ClientState.java:300) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.cql3.statements.SelectStatement.checkAccess(SelectStatement.java:221) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:214) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:248) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:233) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.transport.messages.QueryMessage.execute(QueryMessage.java:116) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:517) [apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:410) [apache-cassandra-3.10.jar:3.10]
        at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) [netty-all-4.0.39.Final.jar:4.0.39.Final]
        at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:366) [netty-all-4.0.39.Final.jar:4.0.39.Final]
        at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:35) [netty-all-4.0.39.Final.jar:4.0.39.Final]
        at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:357) [netty-all-4.0.39.Final.jar:4.0.39.Final]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_152]
        at org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:162) [apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:109) [apache-cassandra-3.10.jar:3.10]
        at java.lang.Thread.run(Thread.java:748) [na:1.8.0_152]
Caused by: com.google.common.util.concurrent.UncheckedExecutionException: java.lang.RuntimeException: Invalid metadata has been detected for role myuser
        at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2203) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache.get(LocalCache.java:3937) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache.getOrLoad(LocalCache.java:3941) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache$LocalLoadingCache.get(LocalCache.java:4824) ~[guava-18.0.jar:na]
        at org.apache.cassandra.auth.AuthCache.get(AuthCache.java:108) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.RolesCache.getRoles(RolesCache.java:44) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.Roles.hasSuperuserStatus(Roles.java:51) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.AuthenticatedUser.isSuper(AuthenticatedUser.java:71) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.CassandraAuthorizer.authorize(CassandraAuthorizer.java:81) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.PermissionsCache.lambda$new$0(PermissionsCache.java:37) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.AuthCache$1.load(AuthCache.java:183) ~[apache-cassandra-3.10.jar:3.10]
        at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3527) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2319) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2282) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2197) ~[guava-18.0.jar:na]
        ... 26 common frames omitted
Caused by: java.lang.RuntimeException: Invalid metadata has been detected for role myuser
        at org.apache.cassandra.auth.CassandraRoleManager$1.apply(CassandraRoleManager.java:99) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.CassandraRoleManager$1.apply(CassandraRoleManager.java:82) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.CassandraRoleManager.getRoleFromTable(CassandraRoleManager.java:528) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.CassandraRoleManager.getRole(CassandraRoleManager.java:503) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.CassandraRoleManager.getRoles(CassandraRoleManager.java:281) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.RolesCache.lambda$new$0(RolesCache.java:36) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.AuthCache$1.load(AuthCache.java:183) ~[apache-cassandra-3.10.jar:3.10]
        at com.google.common.cache.LocalCache$LoadingValueReference.loadFuture(LocalCache.java:3527) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache$Segment.loadSync(LocalCache.java:2319) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache$Segment.lockedGetOrLoad(LocalCache.java:2282) ~[guava-18.0.jar:na]
        at com.google.common.cache.LocalCache$Segment.get(LocalCache.java:2197) ~[guava-18.0.jar:na]
        ... 40 common frames omitted
Caused by: java.lang.NullPointerException: null
        at org.apache.cassandra.cql3.UntypedResultSet$Row.getBoolean(UntypedResultSet.java:273) ~[apache-cassandra-3.10.jar:3.10]
        at org.apache.cassandra.auth.CassandraRoleManager$1.apply(CassandraRoleManager.java:88) ~[apache-cassandra-3.10.jar:3.10]
        ... 50 common frames omitted
INFO  [Native-Transport-Requests-1] 2018-01-09 10:08:06,156 Message.java:617 - Unexpected exception during request; channel = [id: 0xbbaa062e, L:/127.0.0.1:9042 ! R:/127.0.0.1:9042]
io.netty.channel.unix.Errors$NativeIoException: syscall:read(...)() failed: Connection reset by peer
        at io.netty.channel.unix.FileDescriptor.readAddress(...)(Unknown Source) ~[netty-all-4.0.39.Final.jar:4.0.39.Final]

【问题讨论】：

查看 cassandra 日志中的任何错误？
@ChrisLohfink 提供了来自 Cassandra 的日志。
您是否尝试过更新的驱动程序版本？最新的 3.1.x.
用 3.3.0 试过，问题仍然存在。异常现在略有更改，但消息仍然相同：原因：com.datastax.driver.core.exceptions.NoHostAvailableException：所有主机尝试查询失败（尝试：127.0.01/9042（com.datastax. driver.core.exceptions.ServerError：127.0.0.1/9042 服务器端发生意外错误：com.google.common.util.concurrent.UncheckedExecutionException：com.google.common.util.concurrent.UncheckedExecutionException：java.lang.RuntimeException : 检测到角色 myuser 的元数据无效））
看起来是一个存在的问题jira.apache.org/jira/browse/CASSANDRA-14328

标签： cassandra datastax-java-driver

【解决方案1】：

我也遇到了同样的问题。当跨节点的 system_auth.roles 表不同步时，似乎会出现此错误。为了解决这个错误，我执行了以下步骤并得到了解决。

select * from system_auth.roles where role = 'The role which is throwing error';
nodetool修复system_auth； #在所有节点上一个接一个
一致性仲裁；
从 system_auth.roles 中选择 *； #读取所有角色一次
列出角色；

【讨论】：