Amazon ec2 EC2 DataStax AMI V2.5错误（Opscenter Cassandra）

我只是在m3.large实例类型上设置了一个EC2集群并使用AMI:datastax_clustering_AMI_2.5.1_hvm.manifest.xml AMI-7f33cd08设置了一个新实例。仔细地遵循说明，发现在过去的几周里有更多的人报告了相同的错误

在引导时，它显示以下错误，并且在OpsCenter中，没有连接任何节点。这可能是因为以下错误导致安装未成功完成：

These notices occurred during the startup of this instance:
[ERROR] 03/06/15-11:46:24 sudo chown opscenter-agent:opscenter-agent /var/lib/datastax-agent/conf:
[ERROR] 03/06/15-11:46:26 sudo chown -R opscenter-agent:opscenter-agent /var/log/datastax-agent:
[ERROR] 03/06/15-11:46:26 sudo chown -R opscenter-agent:opscenter-agent /mnt/datastax-agent:
Exceptions             : 0
Exceptions             : 0
Exceptions             : 0
Exceptions             : 0
Exceptions             : 0

完整日志：

Using username "ubuntu".
Authenticating with public key "imported-openssh-key"
Last login: Fri Mar  6 12:28:22 2015 [*******************************]

Cluster started with these options:
For example: --clustername DSCcluster --totalnodes 1 --version community


Waiting for nodetool...
The cluster is now in it's finalization phase. This should only take a moment...

Note: You can also use CTRL+C to view the logs if desired:
    AMI log: ~/datastax_ami/ami.log
    Cassandra log: /var/log/cassandra/system.log


Datacenter: eu-west
===================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
--  Address       Load       Tokens  Owns    Host ID                               Rack
UN  172.31.30.32  193.04 KB  256     ?       [*******************************]  1a

Note: Non-system keyspaces don't have the same replication settings, effective ownership information is meaningless

Opscenter: http://[*******************************].compute.amazonaws.com:8888/
    Please wait 60 seconds if this is the cluster's first start...


Tools:
    Run: datastax_tools
Demos:
    Run: datastax_demos
Support:
    Run: datastax_support


------------------------------------
DataStax AMI for DataStax Enterprise
and DataStax Community
AMI version 2.5
DataStax Community version 2.1.3-1

------------------------------------


These notices occurred during the startup of this instance:
[ERROR] 03/06/15-11:46:24 sudo chown opscenter-agent:opscenter-agent /var/lib/datastax-agent/conf:
[ERROR] 03/06/15-11:46:26 sudo chown -R opscenter-agent:opscenter-agent /var/log/datastax-agent:
[ERROR] 03/06/15-11:46:26 sudo chown -R opscenter-agent:opscenter-agent /mnt/datastax-agent:
Exceptions             : 0
Exceptions             : 0
Exceptions             : 0
Exceptions             : 0
Exceptions             : 0

---

编辑：这里还报告了这个问题：

理论上，您可以简单地卸载datastax代理，然后在每个节点上从头开始卸载它们。自集群AMI很好，但很多时候我都遇到了问题。另外，当您手动重新安装它们时，如果遇到任何错误，您可能会收到更多详细的错误消息

嗯

---

Roman

您看到的错误可以忽略，不应影响任何功能。如果不是这样，请告诉我。这是一个已知问题，可以引用为OPSC-4825

您是否尝试在错误中实际运行命令？sudo chown opscenter agent:opscenter agent/var/lib/datasax agent/conf sudo chown-R opscenter agent:opscenter agent/var/log/datasax agent sudo chown-R opscenter agent:opscenter agent/mnt/datasax agent我做了，它声明用户名和组不存在。可能还有另一个原因我的节点没有出现在opscenter中。但是由于其他人也有同样的问题，我猜问题在于这个错误。