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

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Cannot add an existing Cassandra cluster to OpsCenter ('ascii' codec can't encode character)

While trying to add an existing Cassandra cluster to OpsCenter I encountered the following error: Error creating cluster: 'ascii' codec can't encode character u'\u03a7' in position 0: ordinal not ...
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0answers
18 views

Adding cluster to Opscenter fails intermittently due to Enterprise functionality: False

I am working with a OpsCenter 5.1.1 installation, while trying to add an existing DSE 4.6.5 cluster containing 5 nodes via the API. The options passed set the storage_cassandra variables for storing ...
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0answers
81 views

OpsCenter - DSE Cassandra - Cannot achieve consistency level LOCAL_ONE

I am running into this error on a OpsCenter node with DSE Cassandra installed locally. It is in it's own DC and part of a cluster with three other nodes in another DC. Authentication is enabled on ...
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0answers
24 views

Cassandra - DataStax OpsCenter: Error provisioning cluster

I installed Cassandra on my local mac, together with opscenter from DataStax. When I create the new cluster, it gives me the error: Error provisioning cluster: Unable to login to some nodes. ...
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1answer
28 views

OpsCenter 5.1.2 fails to start with SSL enabled on CentOS 5

This applies to OpsCenter 5.1.0 and 5.1.1 as well. I got the following error when trying to run OpsCenter 5.1.2 on a CentOS 5 server: Unhandled Error Traceback (most recent call last): File ...
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0answers
11 views

Cassandra Opscenter windows Agents seperate Installer

Ive setup DataStax Opscenter on a windows 2012 server using the 2.5.1 community edition package, which runs fine, but I need to manually install the agents on an existing 2.1 Apache cluster, also on ...
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0answers
11 views

Trouble configuring Opscenter (5.1.1) Email alerts

I was wondering if anyone could assist me in figuring out why my opscenter email alerts aren't working. My environment is docker running in native network mode with opscenter in a container. ...
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70 views

Datastax Installation Opscenter errors

I am installing a 5 node cluster of Datastax Enterprise 4.7 on 5 separate AWS instances. I have gone through the installation process (simple install) and it appeared to succeed. However, upon ...
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52 views

datastax-agent unable to connect after reinstalling OpsCenter (PKIX path validation failed)

I get this error in /var/log/datastax-agent/agent.log on every client after building a new OpsCenter server and pointing my clients at it: ERROR [StompConnection receiver] 2015-03-30 15:57:25,397 ...
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2answers
49 views

opscenter REST API when authentication is enabled

I enabled authentication on my opscenter node as per this . I've a python script that periodically invokes opscenter actions through the Opscenter REST APIs. From the REST API documentation, it looked ...
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1answer
686 views

datastax-agent Cannot connect Error

Seeing an issue with the Opscenter Agents. Opscenter reports the agents are not connected and in the agent.log on each node, they all report the following: ...
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1answer
38 views

Cassandra versions supported in OpsCenter 5.1.0

We are planning to use Cassandra 2.0.11 but the latest OpsCenter 5.1.0 doesn't support creating a new cluster with Cassandra 2.0.11 package. It shows only 2.0.9. How do we proceed?
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1answer
238 views

OpsCenter 5.1 add existing cluster

I have recently removed the old opscenter and installed new opscenter Opscenter 5.1. When I am trying to add existing cluster to opscenter I keep getting error "Error creating cluster: Timeout while ...
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3answers
799 views

DataStax OpsCenter agent fails to start when Cassandra requires authentication

Problem I can not get OpsCenter get to connect to datastax-agent. It seems that datastax-agent starts and tries to connect to cassandra, fails because it does not know the correct credentials, but it ...
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1answer
125 views

Datastax OpsCenter 5.1 fails to backup 'All Keyspaces'

We recently upgraded our company servers (Datastax Enterprise 4.5.3) to DSE 4.6.0. The only problem we face with that is the new Backup Service, in which we are unable to create a backup for "All ...
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26 views

opscenter agent -f works

I feel certain this is something fairly basic that I'm missing, I'm new to Cassandra and very new to Opscenter and the agent. In brief, Opscenter is working fine and the agent install seems to have ...
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0answers
189 views

Repairing OpsCenter rollups60 Results in Snapshot Errors

I am running a 6 node cluster using Apache Cassandra 2.1.2 with DataStax OpsCenter 5.0.2 from the AWS EC2 AMI "DataStax Auto-Clustering AMI 2.5.1-hvm" (DataStax Community AMI). When I try to run a ...
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1answer
68 views

OpsCenter 5.0.1 - xhrstream HTTP Get request cancelled - 0 of 0 agents connected

Connecting to OpsCenter 5.0.1 on OSX Yosemite on the latest Google Chrome 39.0.2171.99 (64-bit) results in these tcp xhrstreams requests being cancelled and i get a message stating 0 of 0 agents ...
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87 views

OpsCenter : Error loading column family: Make sure all agents are running and connected properly

I'm using OpsCenter version: 5.0.2 and Cassandra 2.1.2 on localhost. I can access keyspaces and see columns list, but when trying to display content of any column I'm getting message: Error ...
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0answers
108 views

DataStax OpsCenter Agent Service doesn't report on CentOS, binary works fine

I have OpsCenter 5.0.2 running on a node, and Cassandra 2.1.2 and the Agent 5.0.2 running on another node. I installed both OpsCenter and the Agent using yum/rpm on CentOS 7. I have no problem using ...
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550 views

Opscenter is connected to datastax agents but no data available

We installed opscenter and datastax agents on a cluster with private network through datastax community packages. Configurations seems to be ok and we don't have connectivity issues on jmx or stomp. ...
0
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1answer
103 views

Change hostname in datastax-agent

I've noticed when working in Opscenter that all the nodes are displayed with the result of hostname and their IP address. For an ec2 host this is a little redundant since the hostnames look like ...
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1answer
118 views

Agent connected to Opscenter but no data available

I'm currently running Cassandra, the OpsCenter, and the OpsCenter agent all on my dev Windows box. The agent is successfully connected to OpsCenter and I can see it listed there along with the amount ...
0
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1answer
198 views

Datastax opscenter 5.0.1: can't create a new cluster

I can't create a new cluster using datastax opscenter 5.0.1 I can add the datastax agent to node on a existing cluster but can't create one (ports are opened, ssh connection OK, sudo works for the ...
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1answer
183 views

Can't get datastax-agent to run on a new node

I'm trying to install the datastax-agent on a new CentOS node (there are 3 other nodes currently up and running correctly). After installing the datastax-agent via the Opscenter UI it appears to ...
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1answer
87 views

Multiple data centers and DataStax OpsCenter

Multiple questions regarding DataStax OpsCenter. I am evaluating for our use OpsCenter 5.0.1 I am able to build a cassandra cluster using opscenter sucessfully. However, all nodes belong to one ...
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1answer
66 views

Datastax Opscenter 5.0: Getting “InvalidGroup.NotFound” when adding node via AWS

I am getting an "InvalidGroup.NotFound" when trying to add an additional node to my cluster through OpsCenter via AWS. The existing node running OpsCenter is in the VPC and is already using the ...
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1answer
370 views

OpsCenter seems to not read configuration file

I have just installed OpsCenter 5.0, using "DataStax All-in-One Installer" on Linux. I have tried to add authentication by setting the following in /etc/opscenter/opscenterd.conf: [authentication] ...
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1answer
564 views

Datastax community edition in windows - Error in creating the test cluster

I recently installed Datastax community edition for windows. As per the installation manual, after successful installation, the Ops Center is supposed to open and show the status of the Test Cluster. ...
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80 views

Opscenter 5 setup error on adding existing cluster

I've got an existing Cassandra cluster (Datastax Community v2.1, Linux). I've downloaded 2.0.10 on a separate box (Win) just to use Opscenter (v5). I add ('manage') the existing cluster by simply ...
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1answer
134 views

DataStax OpsCenter 5.0.0 API doesn't increase last_seen when nodes down if DataStax OpsCenter Agent is down, used to work with 3.2.2

I've been using the DataStax OpsCenter (Enterprise) 5.0.0 REST API with DSE 4.5.1 (Cassandra 2.0.9) to query the /$cluster_name/nodes endpoint and see the last_seen field for the number of seconds ...
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1answer
51 views

OpsCenter 5.0: Unable to get definition for cassandra-yaml for cluster settings

Adding a cluster in OpsCenter 5.0 without problems. As far as I can see, there are no errors in opscenterd.log. However, the web interface doesn't show any nodes. I can see that all XHR calls in the ...
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1answer
307 views

OpsCenter shows a datacenter as unknown even though the agents are connected

We added a datacenter to our cluster and it is shown as "Unknown DataCenter". The dashboard reports all the agents as connected, and neither the agents logs nor opscenter logs show any error. The ...
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1answer
175 views

OpsCenter on AWS: No permission to create /mnt/cassandra/data directory [closed]

Followed the instructions here: http://www.datastax.com/documentation/cassandra/2.0/cassandra/install/installAMILaunch.html Installed OpsCenter on m3.large. When launching an instance, I get this ...
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1answer
39 views

How to copy perf graphs from one user to another in datastax OpsCenter?

I have lots of perf graphs in datastax OpsCenter under my "admin" user. I've created a new read-only user that i can let anyone in the company use, but how do i copy all the already configured perf ...
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1answer
335 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: ...
0
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1answer
36 views

Why do I see 3 node rings in the DSE OpsCenter

Simple Newby question. I've booted 3 instances up in EC2, a cassandra, solr and spark node. I thought they would appear as a single clustered ring in the OpsCenter, but they actually appear as 3 ...
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1answer
379 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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1answer
1k views

Setting-up OpsCenter gives: scp /tmp/.. Permission denied

I'm trying to setup OpsCenter by adding my localhost Cassandra node (for testing). The login credentials I used for SSH has sudo/root rights, nevertheless I get the error: scp: /tmp/tmpXInRfq: ...
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1answer
667 views

OpsCenter 5.0: No Data on Dashboard Graphs

I have an OpsCenter 5.0 instance running and 10 agents connected. The agents are in 2 regions in AWS, so everything is using external addresses to communication. All the necessary ports are open, ...
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1answer
74 views

Opscenter 5.0: User management query

I've installed the free tarball version of opscenter and am having problems with the user management aspect of it. I have authentication enabled via: [authentication] enabled = true ...and can ...
0
votes
1answer
522 views

Opscenter 5.0: error when adding cluster, cluster added anyway, no clusters shown

I have a new Opscenter installation. After adding my "existing cluster" to opscenter, I get the following error dialog boxes: Error creating cluster: Cannot read property 'datasource' of undefined ...
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1answer
128 views

Opscenter 4.1.4: Authentication failing

I'm getting authentication errors when starting the opscenter agents on each of my cassandra (v1.2.5) nodes: INFO [main] 2014-07-23 12:18:03,880 Starting Stomp INFO [main] 2014-07-23 12:18:03,881 SSL ...
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0answers
135 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 ...
0
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1answer
89 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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0answers
93 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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1answer
337 views

Opscenter repair service times out. ERROR: Requested range intersects a local range […]

My production cluster had the repair service enabled since april 16th with the default 9 days time to completion and repairs would complete properly. However, since may 22nd, it is being disabled ...
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2answers
374 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
votes
1answer
303 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
125 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 ...