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Questions tagged [ganglia]

Ganglia is a scalable distributed system monitor tool for high-performance computing systems such as clusters and grids. It allows the user to remotely view live or historical statistics (such as CPU load averages or network utilization) for all machines that are being monitored.

Ganglia is based on a hierarchical design targeted at federations of clusters. It relies on a multicast-based listen/announce protocol to monitor state within clusters and uses a tree of point-to-point connections amongst representative cluster nodes to federate clusters and aggregate their state. It leverages widely used technologies such as XML for data representation, XDR for compact, portable data transport, and RRDtool for data storage and visualization.

References

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Ganglia fails to communicate with Apache HBase

I installed Ganglia to monitor the HBase cluster. I'm using ganglia-3.3.0. Hadoop version: hadoop-1.1.2 HBase version : hbase-0.94.8 My Hadoop cluster comprises of 1 master node and 2 slave nodes. Ganglia gmetad_server is configured on the…
Anju
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Ganglia not displaying hosts

I am trying to set up the Ganglia monitoring tool between two VMs. Initially after setting up the monitoring server and monitored VM, Ganglia could only detect the monitoring server on the web frontend. After rebooting the two machines it could…
gimac28
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Mod Python not working

I have installed mod_python-3.3.1-16.el6.x86_64 using epel repository in Centos 6.5 for Ganglia Python Modules. When I start gmond service, I am getting the following error: Starting GANGLIA gmond: Cannot load /usr/lib64/ganglia/mod_python.so…
vishnu
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How to enable new metrics on Ganglia from Hbase?

How can I enable new metrics to Ganglia from Hbase 0.98? for example: I have enabled the default metrics to monitoring from ganglia, but I would like to enable a specific metric in my cluster like this "blockCacheExpressCachingRatio" or others…
Haschid
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Spark metrics fot gmond / ganglia

OS: Cent OS 6.4 ISSUE: Installed gmond, gmetad and gweb on a server. Installed spark worker in the same server. configured metrics.properties in $SPARK_HOME/conf/metrics.properties as below... CONFIGURATION (metrics.properties in spark):…
user3928804
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Gmetad sees one host per cluster instead of many

I'm trying to configure Ganglia 3.6. I have 8 machines, grouped in to 4 clusters. On one machine I run gmetad, that should collect statistics from all clusters: #fragment of gmetad.conf data_source "A cluster" 10 A.com:8649 data_source "B cluster"…
nuoritoveri
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How to read ganglia information from other application?

I have managed to install and configure Ganglia on my cluster. I do not want to just see all performance data on ganglia web interface but instead I want to read cluster information from other application (application may be Java or Python based). I…
Shekhar
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Send multiple dynamic metrics to Ganglia in logstash

I want to cound the number of messages sent from different instances of program (nodes). These nodes appear dynamically. The messages format will be like: node01 - I feel like I'm loosing the grip. node02 - I'm sad. node02 - I'm loosing the reason…
nuoritoveri
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Best way to track CPU load % on a SGE cluster in Google Compute Engine?

I'd like to analyze the CPU load history to measure the efficiency of our algorithms. What is the best way to track CPU load % on a SGE cluster in GCE? Google cloud console tracks it, but does not make it downloadable as far as I can tell. SGE…
Jose Cortez
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Ganglia: aggregate metrics from one host

For example, 2 instances of 1 process produce some metric using gmetric. They launched on one host: instance 1, measurement 1: 350 giraffes per minute instance 2, measurement 1: 450 giraffes per minute instance 1, measurement 2: 450 giraffes per…
ov7a
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Ganglia client won't report metrics to server on 64bit CentOS

I have Ganglia server on Ubuntu and Ganglia client (gmond) on CentOS client. The metrics for client machine don't appear on UI When I try to restart the gmond service on client, I get errors: service gmond restart Shutting down GANGLIA gmond: …
Vishal Biyani
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Authentication Ganglia gweb logout issue

Today I have tried to enable authentication on apache server for gweb. I got authenticated successfully but not able to do logout after clicking on Logout link at top right corner. Please help on this if any one came across the same…
nmanandhan
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Cloudera installation Doubts?

I am new to cloudera, I installed cloudera in my system successfully I have two doubts, Consider a machine with some nodes already using hadoop with some data, Can we install Cloudera to use the existing Hadoop without made any changes or…
Prabhu
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What all things i need to do to export a Ganglia graph data in json format?

I have installed gmetad and it works perfectly fine showing the graphs of the various resources. Now i need to export the json values corrspoding to the graphs for some purpose (appending &json=1 to url). How to get this working. I have read several…
script_kiddie
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Graph showing 1K instead of GB's about Disk's in Ganglia/RRDTool

I'm using Ganglia and RRDTool to show charts in a web page. Everything is fine, but for some machines the graphs about DISK are with some kind of bug. Here is how they look in some machines (both machine are in the same cluster): This one is…
Valter Silva
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