我有一个场景可以在同一台机器上运行两个不同版本的cassandra，但是在不同的端口。
我在端口cassandra启动了一个群集，其中9161配置如下，
# TCP port, for commands and data
storage_port: 7000
# SSL port, for encrypted communication. Unused unless enabled in
# encryption_options
ssl_storage_port: 7004
port for the CQL native transport to listen for clients on
native_transport_port: 9043
port for Thrift to listen for clients on
rpc_port: 9161
seed_provider:
# Addresses of hosts that are deemed contact points.
# Cassandra nodes use this list of hosts to find each other and learn
# the topology of the ring. You must change this if you are running
# multiple nodes!
- class_name: org.apache.cassandra.locator.SimpleSeedProvider
parameters:
# seeds is actually a comma-delimited list of addresses.
# Ex: "<ip1>,<ip2>,<ip3>"
- seeds: "127.0.0.1"
运行良好，
$ /usr/local/apache-cassandra-2.1.1/bin/cassandra -f
...
INFO 05:08:42 Loading settings from file:/usr/local/apache-cassandra-2.1.1/conf/cassandra.yaml
...
INFO 05:09:29 Starting listening for CQL clients on localhost/127.0.0.1:9043...
INFO 05:09:29 Binding thrift service to localhost/127.0.0.1:9161
INFO 05:09:29 Listening for thrift clients...
INFO 05:19:25 No files to compact for user defined compaction
$ jps
5866 CassandraDaemon
8848 Jps
然而，启动另一个cassandra集群配置为使用config，
在端口9160上运行
# TCP port, for commands and data
storage_port: 7000
# SSL port, for encrypted communication. Unused unless enabled in
# encryption_options
ssl_storage_port: 7004
port for the CQL native transport to listen for clients on
native_transport_port: 9042
port for Thrift to listen for clients on
rpc_port: 9160
seed_provider:
# Addresses of hosts that are deemed contact points.
# Cassandra nodes use this list of hosts to find each other and learn
# the topology of the ring. You must change this if you are running
# multiple nodes!
- class_name: org.apache.cassandra.locator.SimpleSeedProvider
parameters:
# seeds is actually a comma-delimited list of addresses.
# Ex: "<ip1>,<ip2>,<ip3>"
- seeds: "127.0.0.1"
它失败并带有消息
$ /usr/local/apache-cassandra-2.0.11/bin/cassandra -f
Unable to bind JMX, is Cassandra already running?
如何让它在同一台机器上运行两个不同版本的cassandra？
问题是我没有权限停止以前的版本。我也不能使用https://github.com/pcmanus/ccm
答案 0 :(得分：2)
问题是你的新版本cassandra还尝试使用port 7199进行JMX监控。将JMX端口更改为其他未使用的端口，然后它将启动。可以在名为cassandraFolder/bin/cassandra.bat的文件中更改JMX端口。会有一行
-Dcom.sun.management.jmxremote.port=7199^
将上述端口更改为其他未使用的端口。
如果您在linux环境中使用cassandra，JMX配置将位于名为cassandraFolder/conf/cassandra-env.sh的文件中。会有一行
JMX_PORT="7199"
将此更改为其他未使用的端口。
但我对你的问题不清楚。
您是否尝试运行新的cassandra加入现有群集？
如果是，更改JMX端口就足够了。
您是否尝试以独立模式运行新的cassandra？
如果是，请在yaml文件中更改以下配置。
添加以下条目
127.0.0.1 127.0.0.2
/etc/hosts文件中。如果您在Windows中运行，请在C:\Windows\System32\drivers\etc\hosts文件中添加以上条目。如果您的意图是在独立模式下运行，那么请注意您的配置。如果你做错了，那么你的新cassandra将加入到现有的集群中。
这个link可以帮助您在单个Windows机器中运行cassandra集群
答案 1 :(得分：0)
我修改了它，修改了storage_port中ssl_storage_port / conf/cassandra.yaml和JMX_PORT中conf/cassandra-env.sh的更多配置，
# TCP port, for commands and data
storage_port: 7004
# SSL port, for encrypted communication. Unused unless enabled in
# encryption_options
ssl_storage_port: 7005
port for the CQL native transport to listen for clients on
native_transport_port: 9043
port for Thrift to listen for clients on
rpc_port: 9161
seed_provider:
# Addresses of hosts that are deemed contact points.
# Cassandra nodes use this list of hosts to find each other and learn
# the topology of the ring. You must change this if you are running
# multiple nodes!
- class_name: org.apache.cassandra.locator.SimpleSeedProvider
parameters:
# seeds is actually a comma-delimited list of addresses.
# Ex: "<ip1>,<ip2>,<ip3>"
- seeds: "127.0.0.1"
# Specifies the default port over which Cassandra will be available for
# JMX connections.
JMX_PORT="7200"