[英]Lagom external Cassandra authentication
我一直在嘗試為我的Lagom設置設置外部Cassandra。
在root pom中,我寫了
<configuration>
<unmanagedServices>
<cas_native>http://ip:9042</cas_native>
</unmanagedServices>
<cassandraEnabled>false</cassandraEnabled>
</configuration>
在我的impl application.conf中
akka {
persistent {
journal {
akka.persistence.journal.plugin = "this-cassandra-journal"
this-cassandra-journal {
contact-points = ["10.15.2.179"]
port = 9042
cluster-id = "cas_native"
keyspace = "hello"
authentication.username = "cassandra"
authentication.password = "rodney"
# Parameter indicating whether the journal keyspace should be auto created
keyspace-autocreate = true
# Parameter indicating whether the journal tables should be auto created
tables-autocreate = true
}
}
snapshot-store {
akka.persistence.snapshot-store.plugin = "this-cassandra-snapshot-store"
this-cassandra-snapshot-store {
contact-points = ["10.15.2.179"]
port = 9042
cluster-id = "cas_native"
keyspace = "hello_snap"
authentication.username = "cassandra"
authentication.password = "rodney"
# Parameter indicating whether the journal keyspace should be auto created
keyspace-autocreate = true
# Parameter indicating whether the journal tables should be auto created
tables-autocreate = true
}
}
}
但是我得到了錯誤
[warn] a.p.c.j.CassandraJournal - Failed to connect to Cassandra and initialize.
It will be retried on demand. Caused by: Authentication error on host /10.15.2.
179:9042: Host /10.15.2.179:9042 requires authentication, but no authenticator f
ound in Cluster configuration
[warn] a.p.c.s.CassandraSnapshotStore - Failed to connect to Cassandra and initi
alize. It will be retried on demand. Caused by: Authentication error on host /10
.15.2.179:9042: Host /10.15.2.179:9042 requires authentication, but no authentic
ator found in Cluster configuration
[warn] a.p.c.j.CassandraJournal - Failed to connect to Cassandra and initialize.
It will be retried on demand. Caused by: Authentication error on host /10.15.2.
179:9042: Host /10.15.2.179:9042 requires authentication, but no authenticator f
ound in Cluster configuration
[error] a.c.s.PersistentShardCoordinator - Persistence failure when replaying ev
ents for persistenceId [/sharding/ProductCoordinator]. Last known sequence numbe
r [0]
com.datastax.driver.core.exceptions.AuthenticationException: Authentication erro
r on host /10.15.2.179:9042: Host /10.15.2.179:9042 requires authentication, but
no authenticator found in Cluster configuration
at com.datastax.driver.core.AuthProvider$1.newAuthenticator(AuthProvider
.java:40)
at com.datastax.driver.core.Connection$5.apply(Connection.java:250)
at com.datastax.driver.core.Connection$5.apply(Connection.java:234)
at com.google.common.util.concurrent.Futures$AsyncChainingFuture.doTrans
form(Futures.java:1442)
at com.google.common.util.concurrent.Futures$AsyncChainingFuture.doTrans
form(Futures.java:1433)
at com.google.common.util.concurrent.Futures$AbstractChainingFuture.run(
Futures.java:1408)
at com.google.common.util.concurrent.Futures$2$1.run(Futures.java:1177)
at com.google.common.util.concurrent.MoreExecutors$DirectExecutorService
.execute(MoreExecutors.java:310)
at com.google.common.util.concurrent.Futures$2.execute(Futures.java:1174
)
我也嘗試提供此配置
lagom.persistence.read-side {
cassandra {
}
}
如何通過為Cassandra提供憑據來使其工作?
在Lagom中,您可能已經將akka-persistence-cassandra
設置用於journal
和snapshot-store
(請參閱源代碼中的 reference.conf,並向下滾動至cassandra-snapshot-store.authentication.*
)。 無需進行配置,因為Lagom對Cassandra持久性的支持已經將akka-persistence-cassandra
聲明為Akka Persistence實現:
akka.persistence.journal.plugin = cassandra-journal akka.persistence.snapshot-store.plugin = cassandra-snapshot-store
將Lagom連接到Cassandra時要配置的倒數第三位是Lagom的Read-Side。 如果您覆蓋默認值,那么也可以通過application.conf
。
請注意,每個存儲如何使用不同的Cassandra Ring / Keyspace / credentials / ...,以便分別進行調整。
在Lagom文檔中查看更多信息。
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