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我已经从 Crate 1.1.4 升级到 2.0.2。在此之后，我还优化了所有表格。

Crate 在具有一个实例的一台服务器上运行。我没有更改任何默认设置，除了节点名称和集群名称。

但是现在我不能在数据库中写任何东西。选择很好，但每个写操作都以：

SQLActionException: INTERNAL_SERVER_ERROR 5000 UnavailableShardsException: [mytable][3] Not enough active copies to meet shard count of [ALL] (have 1, needed 2). Timeout: [1m], request: [ShardUpsertRequest{items=[Item{id='10'}], shardId=[my_table][3]}]
at org.elasticsearch.action.support.replication.ReplicationOperation.execute(ReplicationOperation.java:107)
at org.elasticsearch.action.support.replication.TransportReplicationAction$AsyncPrimaryAction.onResponse(TransportReplicationAction.java:319)
at org.elasticsearch.action.support.replication.TransportReplicationAction$AsyncPrimaryAction.onResponse(TransportReplicationAction.java:254)
at org.elasticsearch.action.support.replication.TransportReplicationAction$1.onResponse(TransportReplicationAction.java:839)
at org.elasticsearch.action.support.replication.TransportReplicationAction$1.onResponse(TransportReplicationAction.java:836)
at org.elasticsearch.index.shard.IndexShardOperationsLock.acquire(IndexShardOperationsLock.java:142)
at org.elasticsearch.index.shard.IndexShard.acquirePrimaryOperationLock(IndexShard.java:1656)
at org.elasticsearch.action.support.replication.TransportReplicationAction.acquirePrimaryShardReference(TransportReplicationAction.java:848)
at org.elasticsearch.action.support.replication.TransportReplicationAction$AsyncPrimaryAction.doRun(TransportReplicationAction.java:271)
at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)
at org.elasticsearch.action.support.replication.TransportReplicationAction$PrimaryOperationTransportHandler.messageReceived(TransportReplicationAction.java:250)
at org.elasticsearch.action.support.replication.TransportReplicationAction$PrimaryOperationTransportHandler.messageReceived(TransportReplicationAction.java:242)
at org.elasticsearch.transport.RequestHandlerRegistry.processMessageReceived(RequestHandlerRegistry.java:69)
at org.elasticsearch.transport.TransportService$6.doRun(TransportService.java:550)
at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:527)
at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

使用 JDBC 或直接在 Crate 控制台执行 INSERT/UPDATE 查询都没有关系。

有没有人知道如何解决这个问题？

谢谢！

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1 回答 1

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CrateDB 更改了默认写入一致性检查以及默认值number_of_shards（以允许在具有默认表设置的 1 节点集群上使用）。

请参阅https://crate.io/docs/reference/release_notes/2.0.1.html#break-changes

在你的情况下，我猜你number_of_replicas的设置为1. 将其设置为0or 0-1(auto-expand) 将解决此问题。

于 2017-06-28T12:58:24.890 回答