DataStax OpsCenter makes it possible to manage Apache Cassandra and DataStax Enterprise clusters from a centralized web-based dashboard.

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2answers
88 views

CentOS: OpsCenter does not see other node's agent

I'm new with Apache Cassandra. I am trying to install a little sample cluster using two CentOS server. I followed the documentation (Tarball installation) and the nodes are up. However, when I go to ...
2
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1answer
93 views

Problems gettings datastax-agent (DSE 4.0.2) working with opscenter (4.1.2), IllegalArgumentException

I guess the question is: why isn't this working? I'm a bit stuck because there isn't much in the way of documentation on the agent itself, and the exception (seemingly from Clojure) isn't particularly ...
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1answer
49 views

opscenter build cluster failing on EC2

I'm trying to build a new Cassandra cluster on Amazon EC2 using Opscenter for development use. I have installed Opscenter (v4.1.3) on an EC2 instance using the instructions on ...
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1answer
15 views

Cassandra Opscenter historical view

I recently upgraded the underlying machines of my Cassandra cluster (In AWS, from "old" to "current" generation hardware). I thought I'd be able to see if this had a performance impact in Opscenter. ...
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1answer
18 views

DataStax OpsCenter - can't connect with agents

I've installed DataStax OpsCenter (Apache Cassandra) and in OpsCenter, there is an error: "0 of 1 agents connected". When I click "fix", enter credentials and try to install nodes, i get error: ...
1
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0answers
36 views

DataStax OpsCenter ignoring proxy environment variable

we installed DataStax OpsCenter (v4.1.1) on a Debian 7.4 server. After starting the service, the following error is logged in /var/log/opscenter/opscenterd.log: ERROR: Trying to download ...
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0answers
17 views

Opscenter is unable to install agents due permission denied to /tmp

O am not able to install agents on 10.0.0.29 IP through opscenter. It says below error. The user is pavan and this user is having sudo access. Opscenter is unable to install the agents and I'm not ...
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0answers
45 views

Installation stage failed: Permission denied

I have installed OpsCenter on an AWS instance that uses RHEL. After starting the OpsCenter, I am trying to access the GUI from a windows machine (http:// my.ip:port). This brings up the interface ...
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0answers
23 views

Replace existing DataStax OpsCenter Installation in EC2

I'm using DataStax OpsCenter v3.2 installed on an EC2 instance. AWS is going to retire the instance, so I set up a new instance, installed OpsCenter, and tried to connect to my cluster. I got the ...
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0answers
29 views

datatstax opscenter v 4.1.2 short-os collection failed

I've installed Datastax opscenter v4.1.2. It was bundled with Datastax Cassandra Community edition version 2.0.8. I'm running these on Windows Server 2008 R2 64-bit. When I open opscenter all ...
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0answers
16 views

OpsCenter API return all null values for os-cpu-* metrics

Invoking the metrics API (e.g., /cluster/metrics/node/os-cpu-idle?start=1397746020&function=average), I get all null values: { "192.168.4.101": { "AVERAGE": [ [ 1397746020, ...
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0answers
49 views

NullPointerException during datastax agent startup

I installed DSE 4.0 and started the datastax agent and set up a 12-node cluster. When I look in the opscenter console I see 0 nodes connected. I see this exception in the agent log: INFO ...
0
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0answers
123 views

In DataStax Community Edition 2.0.6, OpsCenter appears to require OpenSSL for Windows

Until yesterday, I was running the DataStax Cassandra Community Edition 2.0.5 just fine, both with Cassandra 2.0.5 and later with the Apache Cassandra 2.0.6 inserted underneath it. I had to ...
0
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0answers
119 views

OpsCenter doesn't display disk space

I've looked through multiple forum posts, I've turned on debug et al, and I still cannot for the life of me figure out why the disk space isn't working. ALL other information is filled--except for ...