Question

我尝试为具有不同读取请求超时的cassandra创建新端点。具有大数据请求的超时很大的端点会响应。我使用com.datastax.cassandra驱动程序和带read_request_timeout参数的cassandra-default.yaml找到了Scala代码。如何在“群集”构建器或代码的其他位置设置read_request_timeout？

Cluster
      .builder
      .addContactPoints(cassandraHost.split(","): _*)
      .withPort(cassandraPort)
      .withRetryPolicy(DefaultRetryPolicy.INSTANCE)
      .withLoadBalancingPolicy(
        new TokenAwarePolicy(DCAwareRoundRobinPolicy.builder().build())).build



# How long the coordinator should wait for read operations to complete
read_request_timeout_in_ms: 5000

Answer 1

使用：在查询级别进行设置

session.execute(
        new SimpleStatement("CQL HERE").setReadTimeoutMillis(65000));

如果要在集群构建时设置，请使用：

Cluster cluster = Cluster.builder()
        .addContactPoint("127.0.0.1")
        .withSocketOptions(
                new SocketOptions()
                        .setConnectTimeoutMillis(2000))
        .build();

Socket Options

如何为Cassandra设置读取请求超时

1 个答案: