Datastax Opscenter - 代理未连接

时间:2015-03-11 16:19:38

标签: amazon-ec2 cassandra datastax opscenter

我在我的EC2亚马逊机器上设置了Cassandra,OpsCenter和所需的DataStax代理。目前它只有一台机器。

除了节点列表为空以外,所有内容似乎都运行良好,Opscenter中的键空间也是如此。 cassandra,datastax和opscenter日志显示没有错误,我仔细遵循安装/配置。然后尝试了所有建议的修复。

我的猜测是问题在于代理和opscenter之间的沟通。

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一段时间后,这些请求失败了:

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etc / cassandra / cassandra.yaml: (简体)

cluster_name: 'CassandraCluster'
    seed_provider:
        - class_name: org.apache.cassandra.locator.SimpleSeedProvider
          parameters:
              - seeds: "1.2.3.4"
listen_address: 1.2.3.4
rpc_address: 0.0.0.0
endpoint_snitch: Ec2Snitch

etc / opscenter / opscenterd.conf: (简化)

[webserver]
port = 81
interface = 0.0.0.0

[authentication]
enabled = False

[stat_reporter]

[agents]
use_ssl = false

var / lib / datastax-agent / conf / address.yaml: (简化)

stomp_interface: 1.2.3.4
local_interface:  1.2.3.4
use_ssl: 0

nodetool status输出:

Note: Ownership information does not include topology; for complete information, specify a keyspace
Datacenter: eu-west_1_cassandra
===============================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
--  Address       Load       Tokens  Owns   Host ID                               Rack
UN  1.2.3.4       2.06 MB    256     100.0%  8a121c12-7cbf-4a2a-b111-4ad111c111d8  1a

除了在agent.log中重复出现以下行之外,日志中没有出现任何奇怪的内容:

 INFO [install-location-finder] 2015-03-11 15:26:04,690 New JMX connection (127.0.0.1:7199)
 INFO [install-location-finder] 2015-03-11 15:27:04,698 New JMX connection (127.0.0.1:7199)
 INFO [install-location-finder] 2015-03-11 15:28:04,709 New JMX connection (127.0.0.1:7199)
 INFO [install-location-finder] 2015-03-11 15:29:04,716 New JMX connection (127.0.0.1:7199)
 INFO [install-location-finder] 2015-03-11 15:30:04,724 New JMX connection (127.0.0.1:7199)
 INFO [install-location-finder] 2015-03-11 15:31:04,731 New JMX connection (127.0.0.1:7199)

这里提供的所有信息都是日志:

  1. opscenterd.log
  2. agent.log
  3. cassandra/system.log

2 个答案:

答案 0 :(得分:3)

在某些环境中,浏览器和opscenterd之间的持久连接可能会失败。我们正在努力实现可在所有环境中运行的更强大的连接,但与此同时,您可以使用以下解决方法:

http://www.datastax.com/documentation/opscenter/5.1/opsc/troubleshooting/opscTroubleshootingZeroNodes.html

答案 1 :(得分:1)

我发现有效的最小配置是为address.yaml

设置以下选项
stomp_interface: [opscenter-ip]
stomp_port: 61620
use_ssl: 0
cassandra_conf: /etc/cassandra/cassandra.yaml
jmx_host: [cassandra-node-ip]
jmx_port: 7199

确保您还安装了sysstat。