Applications or appliances that observe machines, systems and networks to find problems and notify administrators.

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117 views

Cross-referencing charts (e.g. munin) with log files

Is there a charting package like Munin (or an addon for it) that will let me click on a graph period and then see all the logs on that box for that period? e.g. if I see a huge spike in disk I/O 12 ...
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69 views

% segments retransmitted above threshold

I've been doing some monitoring on our servers and we get warnings that the TCPv4 / % Segments Retransmitted is above acceptable threshold: http://imgur.com/b8RNm Is there any way to tell what the ...
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100 views

Getting the virtual memory address for (major) page faults

On a Linux (Cent OS 5) system, I have a process that accesses a large amount of memory mapped files. The process is generating a large amount of page faults because the aggregated size of the mapped ...
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653 views

Monitoring JBOSS 6.1 with SCOM 2012 using JMX

I have really no knowledge about SCOM and a very little knowledge about JMX protocol. What I am trying to achieve is I have a HelloWorld application which has an HelloWorldMBean works perfectly fine ...
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281 views

How to test that an exported resource in puppet exists after collecting?

I want to create a nagios_hostgroup if some hosts exists. For creating hosts in nagios I am using exported resources which I collect on the monitoring server. How can I test that a exported ...
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3k views

No handler for command 'CheckFileSize' in NSClient++

I am trying to set up monitoring of the size of folders on a Windows server from a Linux box through NRPE using NSClient++ (0.4.0.148-win64) . The basic setup is ok and I am for example able to issue ...
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233 views

Icinga HTTP on Apache server does not return 200 intermitently

I have a server running Apache/2.2.16 on Debian Lenny. The server is host to about 6 vhosts. One of the vhosts is just the FQDN for the server and doesn't have much of anything but an index.html ...
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60 views

SQL - progmatically change refresh rate for ALL publishers in replication monitor

How can I change progmattically change the refresh rate of all the publishers in the repliation monitor ? Without going into each one to change it's publisher setttings. MS SQL SMS 2008 R2 AHIA, ...
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12 views

How does nginx-plus calculates cache hit ratio

I'm creating a plugin to be compatible with nginx-plus live metrics, and I'm puzzled on how they calculate the cache hit ratio. In using their demo site as well as their demo API, but still don't know ...
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9 views

Trace New Processes Executing Shell Scripts

A web interface executes specific shell scripts on a server when a user triggers certain actions, like pressing a submit button. On the SLE10 server, I would like to have a tool that after starting it ...
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14 views

nagios custom script working locally, returns null in UI

I have a custom script that I've defined within my nagios command.cfg and service definitions. When run locally as nagios on the monitoring host, it returns the expected output (a large hash of stats ...
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12 views

Apache2 Traffic Overstated to the the point of Ludicrousness

Here's the status page from a rarely visited web site I host. What could make the traffic statistic so off the scale high? Edit: this is an ancient 32-bit Dell Dimension 4600 machine running ...
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15 views

Adding more colors in the plots in the Ganglia Web Interface

I use ganglia to monitor my computer cluster. On Ganglia Web Interface, is it possible to add more colors in the plots? There seems to be 9 colors by default, which prevents me from seeing to which ...
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23 views

Ganglia showing both host names and IPs

I restarted the gmond daemon (sudo /etc/init.d/gmetad restart), and now the Ganglia web interface is showing both host names and IPs: As a result, each server now appears as two different entries ...
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15 views

Airodump-ng Not Showing Anything

I am using Kali Linux to test some adapters. First of all, I don't know why, but I have a wlan0 and wlan1. I have tried both of them and I still have the same problem. So far I can issue the command: ...
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39 views

Zabbix JMX custom java app monitoring

We are trying to monitor a custom java app and retrieve JMX data from that host . I've tried to figure out the issue for the past 2 days but with no success . Unfortunately zabbix documentation does ...
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6 views

ganglia only shows unspecified cluster

I have configured a ganglia in my office to monitor server resource utilization. i have configured a data_source but its showing in ganglia web. data_source "test-cluster" 30 10.220.8.54:8649
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26 views

Icinga2 Mail Notifications Per HostGroup

I have a working Icinga2 installation and I have a number of servers/worstations broken up into hostgroups. For example, I have Fixed Servers - hostgroup is fixed-workstations Tiered Server - ...
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50 views

Munin and mysql plugin

I've installed munin on a vps and I want to monitor mysql usage of 3 mysql servers, I have configured mysql_ plugin as follow: [mysql_*] env.mysqlconnection ...
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19 views

Oprofile events are not available

I run an Intel(R) Xeon(R) CPU E5520 @ 2.27GHz and I've just started to use Oprofile. I want to measure some events like the BUS_REQ_OUTSTANDING and BUS_TRAN_BRD but are not available. Is ...
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26 views

Nagios plugin(check_nrpe) unable to communicate to Sensu Api

I am trying to do a simple Sensu integration with Nagios. I ran into some trouble with check_nrpe. So there is a NAGIOS server polling on a SENSU server. My nagios check script: ...
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12 views

How can i monitor puma using graphite?

How can I monitor puma (rails web server) in my ubuntu 14.04 server using graphite? If not graphite , what other alternative can be used ? I have tried to monitor it as a process using the process ...
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13 views

Munin graphs not being removed from html page after plugin removed

I have a munin server and many linux nodes. That all works fine. I wrote some custom munin plugins. They worked. They appeared on the munin html page. I have since deleted those plugins. However my ...
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32 views

Can we write an custom check for monitoring a process with Data Dog

I want to write an DataDog Check to monitor some process like Puma, delayed_job etc, I can see there are ready plugins available for these for nagios and Sensu but not for DataDog, But can I write my ...
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13 views

Forward psacct logs to rsyslog

I want to monitor users activity and aggregate logs using rsyslog. Is there any way how to do it natively? If I understand how does psacct work, it monitors whole users activity and saves logs in own ...
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32 views

SNMP OID mappings

I am trying to get ifDescr and ifHCInOctets OID from my pfsense firewall. When I issue a Get from snmpwalk: snmpwalk -v 2c -c xxxxx 10.1.0.41 .1.3.6.1.2.1.2.2.1.2 I receive the following output: ...
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112 views

Collectd dynamic (regex match) “Instance”

I thought I had seen, but subsequently cannot find information on how to use the regex matches in Instance. For example I have an nginx matcher which has the following, I'd like to replace 61: and ...
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7 views

How to use number of CPUs as a multiplier in monit config?

What is the best way to use number of CPUs as a multiplier in monit confs? I need this for a system that has varrying number of CPUs, depending on predicted load. Right now the only idea I have is ...
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98 views

Zabbix Graphs Show No Data When Data is Available in Latest Data

I have an issue when I make a graph and Add Total Memory, it says that there is no data. I also have other details such as Available Memory and Used Memory which are working on the same graph. If I ...
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22 views

fileschanged daemon dies unexpectedly

I'm using fileschanged to monitor files on server1 and run a bash script to synch the files in server1 to server2 if any of the files are changed in server1. to do that I'm running this: fileschanged ...
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218 views

How to create custom graph in Observium

I`m trying create custom craph in Observium(http://www.observium.org/). I use this manual http://www.keithrogers.co.uk/?p=12 I can telnet myhost 36602 and receive result: ...
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28 views

collectl vs strace - reported block io read/write size

I've got an xfs mount with standard settings (it's an AWS host): [root@host ~]# xfs_info /dev/xvda1 meta-data=/dev/xvda1 isize=256 agcount=4, agsize=524224 blks = ...
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113 views

Java, VisualVM : Setting up VisualVM properly for Java8 based webapps

I have a Java based webapp which I have deployed on one of our server. Sometimes the JVM died because of out-of-memory error. The application is kinda heavy as it uses Cometd(Push mechanism) heavily ...
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22 views

Adding a server to xymon bb-hosts with pem file

We have a Xymon/Hobbit server set up for monitoring, works great. However I need to add a new server to the monitor list. Normally this is straightforward, however to be able to SSH into this server I ...
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47 views

Is there something to consider when using pm2 with nginx

PM2 is a great processmanager with the bonus that the status of single proccesses can be read via a proteced API. Although it is mainly focused on running node-apps, it is also able to start anything ...
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120 views

Graphs not showing in Ganglia web frontend

I have setup Ganglia as per the following site and everything went well.I was able to test both the gmetad and gmond services. But when i try to access the webfront-end via /server-ip/ganglia i dont ...
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33 views

How can I tell if I don't get e-mail

That sounds a little silly but bear with me... I have several servers which run several automated processes which each e-mail me status reports (e.g., build success or failure). However, there are ...
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25 views

strace a series of processes, that does short CPU load bursts?

I have a server, where php-fpm pool processes start to consume too much CPU. But each process causes high CPU load only for a short period of time and I cannot catch even one such process at that ...
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0answers
113 views

Can I send a command to stdin of a systemd monitored process

I use systemd to monitor a few gameservers. Some of them accept commands at runtime via stdin. Does systemd somehow allow sending input to processes? Pretty much like journalctl, but the other way ...
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77 views

Trying to get metircs from collectd with python plugin

I am trying to write a python plugin for collectd that will grab selected metrics and send them as json somewhere else. I have seen a few similar projects such the librato plugin here. However when ...
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54 views

Graphite: carbon instrumentation: send to another server

I have a Graphite architecture composed of several elements (HAProxy, Carbon relays and caches) and I use a carbon relay to replicate my data between 2 Graphite servers which store it in Whisper ...
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0answers
632 views

DFS replication monitoring under a non-administrative account

I have a DFS replication set up on two Windows Server 2012 machines in a domain, the DFS consists of one namespace, two servers, several replication groups each containing one folder. I have been ...
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23 views

ServerTech Sentry4 OID for AMPs

Does anyone have the oid for AMPS for Sentry4 PRO2 CDU? I am trying to monitor the amount of total amps for the CDU and I am having a hard time finding the OID for what I want. Any help would be ...
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72 views

Issue with SSH on RHEL while monitoring logs from SpectorSoft Server Manager

I have 3 servers running RHEL hosting a number of Java applications where each of them generates a log file which I am monitoring from a Windows-based machine with the use of SpectorSoft Server ...
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18 views

Any tools that can detect if the machine is off similar to Softperfect Wi-Fi Guard?

We have an outage of electricity the other day and some machines (static IP) has been turned off. Because the machines are located in different places is very hard to know. It will be good to have a ...
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290 views

Samba module full_audit is logging actions that didn't occured

Our company has a file server, a Debian Squeeze 64 bits, sharing some folders to Linux servers using NFSv2 and to Windows workstations using Samba. I want to log access to a specific set of shared ...
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52 views

SCOM 2012 - service flapping and notifications

I am trying to untangle SCOM 2012 install created by someone else and I noticed that alerts for the same monitor are being sent multiple times per hour littering my mailbox. From my previous ...
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649 views

Zabbix active check traffic

My conundrum is as follows... I have a Zabbix (2.2) server and agent up and running. The server does all kinds of passive check on the agent -- everything here is working as intended. The problem is ...
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174 views

Restart Service If TCP Check Fails or Timeout

We are using check_mk WATO to monitor our production infrastructure and all the services. Currently, we have HTTP checks for our application. We would like to have an event driven monitoring system ...
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200 views

How to determine the cause of network issues of a hetzner.de dedicated server?

I've got 3 dedicated servers at hetzner.de, and I’m occasionally getting unavailability alerts for these servers, from 2 independent monitoring systems (New Relic and Pingdom) usually for all 3 server ...