node.js - 无法使用 datastax-driver 连接到 cassandra(已 stub 的 cassandra)

Question

我在连接到 cassandra 时遇到问题。
我正在尝试使用 datastax node.js cassandra 驱动程序连接到 s-cassandra(这是一个 stub 的 cassandra，可以查看 here )。

由于某种原因将“127.0.0.1:8042”作为联系点传递给驱动程序 导致DriverInternalError:

(很难，有时它确实随机工作，我还没有弄清楚为什么有时它可以，有时我不......)

我得到的DriverInternalError:

{"name": "DriverInternalError",
"stack": "...",
"message": "Local datacenter could not be determined",
"info": "Represents a bug inside the driver or in a Cassandra host." }

这是我从 Cassandra 驱动程序日志中看到的内容:

log event: info -- Adding host 127.0.0.1:8042
log event: info -- Getting first connection
log event: info -- Connecting to 127.0.0.1:8042
log event: verbose -- Socket connected to 127.0.0.1:8042
log event: info -- Trying to use protocol version 4
log event: verbose -- Sending stream #0
log event: verbose -- Sent stream #0 to 127.0.0.1:8042
{"name":"application-storage","hostname":"Yuris-MacBook-Pro.local","pid":1338,"level":30,"msg":"Kafka producer is initialized","time":"2016-08-05T12:53:53.124Z","v":0}
log event: verbose -- Received frame #0 from 127.0.0.1:8042
log event: info -- Protocol v4 not supported, using v2
log event: verbose -- Done receiving frame #0
log event: verbose -- disconnecting
log event: info -- Connection to 127.0.0.1:8042 closed
log event: info -- Connecting to 127.0.0.1:8042
log event: verbose -- Socket connected to 127.0.0.1:8042
log event: info -- Trying to use protocol version 2
log event: verbose -- Sending stream #0
log event: verbose -- Sent stream #0 to 127.0.0.1:8042
log event: verbose -- Received frame #0 from 127.0.0.1:8042
log event: info -- Connection to 127.0.0.1:8042 opened successfully
log event: info -- Connection pool to host 127.0.0.1:8042 created with 1 connection(s)
log event: info -- Control connection using protocol version 2
log event: info -- Connection acquired to 127.0.0.1:8042, refreshing nodes list
log event: info -- Refreshing local and peers info
log event: verbose -- Sending stream #1
log event: verbose -- Done receiving frame #0
log event: verbose -- Sent stream #1 to 127.0.0.1:8042
log event: verbose -- Received frame #1 from 127.0.0.1:8042
log event: warning -- No local info provided
log event: verbose -- Sending stream #0
log event: verbose -- Done receiving frame #1
log event: verbose -- Sent stream #0 to 127.0.0.1:8042
log event: verbose -- Received frame #0 from 127.0.0.1:8042
log event: info -- Peers info retrieved
log event: error -- Tokenizer could not be determined
log event: info -- Retrieving keyspaces metadata
log event: verbose -- Sending stream #1
log event: verbose -- Done receiving frame #0
log event: verbose -- Sent stream #1 to 127.0.0.1:8042
log event: verbose -- Received frame #1 from 127.0.0.1:8042
log event: verbose -- Sending stream #0
log event: verbose -- Done receiving frame #1
log event: verbose -- Sent stream #0 to 127.0.0.1:8042
log event: verbose -- Received frame #0 from 127.0.0.1:8042
log event: info -- ControlConnection connected to 127.0.0.1:8042 and is up to date

我尝试过使用防火墙和打开应用程序，但没有帮助..有时它确实会随机工作，但我还没弄清楚为什么.. 我有一个 mac OS X El Capitan

Answer 1

对我有帮助的解决方案: 我需要将 system.local 表作为 prime-query-single 进行准备

{
        query: 'prime-query-single',
        header: {'Content-Type': 'application/json'},
        body: {
            "when": {
                "query": "SELECT * FROM system.local WHERE key='local'"
            },
            "then": {
                "rows": [
                    {
                        "cluster_name": "custom cluster name",
                        "partitioner": "org.apache.cassandra.dht.Murmur3Partitioner",
                        "data_center": "dc1",
                        "rack": "rc1",
                        "tokens": [
                            "1743244960790844724"
                        ],
                        "release_version": "2.0.1"
                    }
                ],
                "result": "success",
                "column_types": {
                    "tokens": "set<text>"
                }
            }
        }
    }