我是cassandra的新手,與docker相同。我的目標是連接到在java中運行docker的cassandra。我工作在Windows機器上Java連接到在docker內部運行的cassadra
我通過執行跑卡桑德拉(也試過版本2.2,3.10,沒有任何env.variables)
docker run --name cassandra -d -e CASSANDRA_RPC_ADDRESS=127.0.0.1 cassandra:3.0
目前,我有這樣的搬運工ps的輸出:
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f932d3e7e0dc cassandra:3.0 "/docker-entrypoin..." 5 seconds ago Up 5 seconds 7000-7001/tcp, 7199/tcp, 9042/tcp, 9160/tcp cassandra
,我可以「泊塢窗EXEC - 它卡桑德拉cqlsh」這樣的輸出
Connected to Test Cluster at 127.0.0.1:9042.
[cqlsh 5.0.1 | Cassandra 3.0.13 | CQL spec 3.4.0 | Native protocol v4]
在Java項目中我有gradle這個依賴
compile group: 'com.datastax.cassandra', name: 'cassandra-driver-core', version: '3.2.0'
我的測試代碼(也試過不指定任何協議版本,並與V5嘗試)
public static void main(String[] args)
{
Cluster cluster = Cluster.builder()
.addContactPoint("127.0.0.1")
.withProtocolVersion(ProtocolVersion.V4)
.build();
Session session = cluster.connect();
}
,我得到這個異常:
Exception in thread "main" com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried for query failed (tried: /127.0.0.1:9042 (com.datastax.driver.core.exceptions.TransportException: [/127.0.0.1:9042] Cannot connect))
at com.datastax.driver.core.ControlConnection.reconnectInternal(ControlConnection.java:232)
at com.datastax.driver.core.ControlConnection.connect(ControlConnection.java:79)
at com.datastax.driver.core.Cluster$Manager.negotiateProtocolVersionAndConnect(Cluster.java:1600)
at com.datastax.driver.core.Cluster$Manager.init(Cluster.java:1518)
at com.datastax.driver.core.Cluster.init(Cluster.java:159)
at com.datastax.driver.core.Cluster.connectAsync(Cluster.java:330)
at com.datastax.driver.core.Cluster.connectAsync(Cluster.java:305)
at com.datastax.driver.core.Cluster.connect(Cluster.java:247)
at com.iter.cassandratest.Cassandratest.main(Cassandratest.java:17)
任何想法我做錯了嗎?
編輯1:
I`ve只是試圖用-P選項來看,根據dock i found
現在ps的輸出是:
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
9eb54421aac2 cassandra:3.0 "/docker-entrypoin..." 4 seconds ago Up 3 seconds 0.0.0.0:32772->7000/tcp, 0.0.0.0:32771->7001/tcp, 0.0.0.0:32770->7199/tcp, 0.0.0.0:32769->9042/tcp, 0.0.0.0:32768->9160/tcp cassandra
我改變代碼
Cluster cluster = Cluster.builder()
.addContactPoint("127.0.0.1")
.withPort(32769)
.withProtocolVersion(ProtocolVersion.V4)
.build();
異常更改爲
All host(s) tried for query failed (tried: /127.0.0.1:32769 (com.datastax.driver.core.exceptions.TransportException: [/127.0.0.1:32769]
Channel has been closed))
我想你應該在你的碼頭機器中指定端口轉發。嘗試連接到本地主機,但連接到碼頭IP。即192.168.99.100,如果它可以工作,那麼它意味着問題在於端口轉發。 –
你的意思是容器地址? 「碼頭檢查卡桑德拉」不包含容器的地址。我怎樣才能找到「碼頭IP」? – iteracia
即「docker machine ip default」,如果您使用的是docker機器 https://docs.docker.com/machine/reference/ip/ –