Questions about monitoring server hardware and software performance, or network performance.

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2
votes
0answers
8 views

Investigating Citrix app server “slowless”

Currently have a client stating that the 5 users on a 2cpu, 4gb mem app server are experiencing slowness and often, locking up for moments at a clip. Framework is a VM running in vSphere 5.5 [intel ...
0
votes
1answer
2k views

Optimal configuration of “Processor load is too high” trigger in Zabbix

I monitor approx. 10 Linux servers with 4 CPU cores each with Zabbix. I was receiving way to many false alarms from "Processor load is too high" trigger lately. The "Processor load is too high" ...
-4
votes
0answers
14 views

What is the error “UNKNOWN HOST” and how do I fix it? [on hold]

From time to time, I get the error "UNKNOWN HOST" on on of my URLS. How can I fix this and what is causing this error?
0
votes
1answer
2k views

SQL Server Timeout issues at random times causing performance degradation

I am having random timeout during a brief period of time on certain days. My CPU, Memory looks fine. So I ran Performance Monitor during these spikes and found my average disk sec/read was 5.8 ...
0
votes
1answer
1k views

Apache loading time in microseconds - difference between header and log

I recently followed this guide to obtain performance measurement of siteload on a web server. To log the time it takes for Apache to process a request add this to your apache configuration file: ...
4
votes
1answer
2k views

Have issue with monitoring 32bit app pools running on 64bit IIS

I am performing a monitoring task on my 64bit web server which has couple of applications pools running in 32bit mode. I am using .Net CLR Memory object in perfmon to monitor them. However, my ...
28
votes
5answers
37k views

How passively monitor for tcp packet loss? (Linux)

How can I passively monitor the packet loss on TCP connections to/from my machine? Basically, I'd like a tool that sits in the background and watches TCP ack/nak/re-transmits to generate a report on ...
1
vote
1answer
2k views

Active Sessions Performance Counter for Web Server

I would like to monitor the number of active sessions for my ASP.Net 4.0. It is hosted on IIS7 Windows 2008 Server. When I looked at the Performance counter, I saw many instances. How could I know ...
3
votes
3answers
2k views

Nagios plugin to take process snapshot when load is high

We have configured Nagios with check_load via NRPE plugin to monitor server load, it reports when load is high, but does not have option to take a snapshot top processes (like top command) at that ...
4
votes
1answer
44 views

Resource Monitor - Disk - Response Time

I've noticed a difference between the disk response time reported in Resource Monitor (resmon) and perfmon. The Response Time reported in Resource Monitor is notably higher than the latency reported ...
0
votes
1answer
115 views

Server high memory and cpu - no leads

I've been asked to troubleshoot a server hosting our application at a client's facility. The client has complained to us on two separate occasions in the last week - week and a half. In one instance ...
0
votes
1answer
1k views

IIS/ASP.NET performance incident - Perfmon Current Annonymous Users going through roof but Requests/sec low

Setup: ASP.NET 4.0 website on IIS 6.0 on Win 2003 64 bit, 8xCPUs, 16GB memory, separate SQL 2005 DB server. Had a serious slowdown today with any otherwise fairly well performing ASP.NET site. For a ...
0
votes
0answers
23 views

Windows 2008R2E > Performance Monitor > Add counters is empty?

The deployed instances of my Windows 2008R2E virtual machines (images provided by my host provider) have never seemed to allow performance monitoring. Opening up Performance Monitor, the % Processor ...
0
votes
0answers
11 views

Can I configure PCP (Performance Co-pilot) clients to report to a monitoring server from behind a firewall

I have several computers that are running applications. These computers are on the internet, in that they can connect out to the general internet over port 80. These computers have dynamic IP ...
1
vote
1answer
2k views

In Windows 7, why can't I use perfmon against a remote server?

I am on Windows 7 and trying to run perfmon against Windows 2003 and Windows 2008 servers. I am running into the same issue with all remote machines. When creating a data collector set, I specify a ...
0
votes
2answers
2k views

Exchange 2010 - resolving Calendar Attendant\Requests Failed

On my mailbox server, I am receiving the alert: MSExchange Calendar Attendant\Requests Failed Or in Solarwinds Requests Failed (Calendar Attendant) for Exchange 2010 Mailbox Role Counters ...
1
vote
0answers
18 views

Performance Monitor Processor Time counter blank data

I setup a simple data collector with Performance Monitor to collect Processor time(CPU Usage in %) and SQL Statistics: Batch Requests/sec @ 15 second intervals to see if i can get some baselines and ...
2
votes
1answer
2k views

How to monitor performance of servers on a different domain using Perfmon in Windows 7

We just upgraded our developer machines from 32 bit Windows XP to 64 bit Windows 7 Ultimate. With Windows XP we were able to do a live monitor of the CPU usage of servers that resided on a separate ...
1
vote
1answer
24 views

Performance counter alert not working

I want to monitor for example CPU usage on a server and run a script which will figure out the most demanding processes and logs it into file. I planned to use Performance counter alert which can be ...
2
votes
1answer
3k views

Running perfmon continuously with periodic reports

I have a question very similar to this one, but I want to continuously run perfmon, during reboots and throughout the day. Further, I'd like to generate a perfmon report every 10 mins or so. The ...
0
votes
1answer
24 views

System-monitoring with Cacti: How to execute arbitrary script when threshold reached?

When doing system-monitor with Cacti[1], can you execute an arbitrary script when a threshold is reached, yes or no? If yes, how? [1] I was planning on using the Cacti plugin Thold but as far as I ...
-1
votes
1answer
38 views

Windows 2008 R2, heat map

How do we get server heat map data from windows server based on memory usage and cpu usage. Our server Admins are not required to do this and our Dev team is trying to do this ourselves.I am trying to ...
1
vote
0answers
14 views

What is involved in adding ZFS cache stats to orca?

I am interested in looking to add ZFS cache stats into existing orca performance monitoring that we have. Particularly, I am interested in the output of echo ::memstat | mdb -k Am still in the early ...
1
vote
2answers
1k views

How does CPU consumption look like from a VM on a heavily use VM Host?

I know I could test this, but I don't have the time right now to setup pristine test conditions to learn something that should be in documented form - and that I cannot find in an authoritative form. ...
0
votes
0answers
19 views

How to set IIS Logging to best fit this scenario

I need to monitor a IIS 7 App Pool (WCF is running on it) and I would like to read messages like: Request A Received. Pool is down. Starting Pool. Request B Received. Pool going up. Request C ...
0
votes
0answers
14 views

Performance Monitor: How can I record thread states & wait reasons from all threads running in a process?

How can I record the thread states & thread wait reasons from all threads running within a specific process (WmiPrvSE.exe in this case)? Or even better from a list of processes that match a filter ...
0
votes
0answers
17 views

Orca yearly graph is not showing correct results

We are using Orca for performance monitoring on a number of solaris servers. We've got plots for hourly, daily, weekly, monthly, quarterly and yearly. However, the yearly plot is displaying hour ...
1
vote
0answers
9 views

PRTG Network Monitor custom sensor - return grouped data

I have an IBM DS3512 storage system that I want to monitor. So far I was able to create a custom XML sensor on Powershell, that grabs performance data saved by smcli.exe (the only known way to reach ...
2
votes
3answers
1k views

Munin Graphs - Have one graph/plugin only update once per hour?

I am writing a custom munin plugin/graph and it's slightly computationally expensive. It's also unlikely to change much in a few minutes. Is it possible to have this one graph/plugin only update once ...
15
votes
4answers
6k views

Finegrained performance reporting on svchost.exe

This is something that's always bothered me, so I'll ask the Server Fault community. I love Process Explorer for keeping track of more than just the high-level tasks you get in the Task Manager. But ...
0
votes
2answers
620 views

which performance counters mainly matter for windows server performance?

We have a website which is sometimes performing slowly, and / or completely hangs. I have setted up temporarily the default system performance data collector in Performance Monitor, to see if this ...
1
vote
0answers
83 views

High CPU caused by system interrupts

We have a three day old Idacentre A740 AIO PC. (windows 8.1 pro) The system is up-to-date. After we start the PC and "do notthing" the system interrupts taken 40% CPU time approximately. Tried to ...
8
votes
7answers
10k views

A simple option for graphing CPU usage on a remote Linux Server

My requirements are very simple. I need to graph the CPU usage on a remote Linux server. I'm not looking for anything complicated, I just need to be able to plot the CPU usage on a Linux server over a ...
0
votes
0answers
32 views

SCOM 2012 - Limit WCF monitoring to only specific entry points

When monitoring IIS hosted WCF web services for performance violations, how can I configure my Monitoring Wizard to only monitor a specific entry point? I can seemingly define additional entry points ...
0
votes
0answers
30 views

SCOM 2012 - Record number of active asp.net users at time of alert

I'm currently monitoring the WCF endpoints belonging to an ASP.NET Web Application in SCOM 2012. I want to be able to determine the number of active users (standard ASP.NET membership provider) at the ...
1
vote
0answers
14 views

New Relic Connections Per Server [duplicate]

Using New Relic I am trying to understand the relationship between simultaneous connections and server performance via new relic. As an example of the relationship I would like to see, it would be ...
-1
votes
1answer
59 views

Tracking the slow - how to list all processes related to web-server?

I wanted to ask people in this community about administration of the Debian based web server - its a dedicated server, hosting a single website. From time to time the web site is slowing down, on ...
0
votes
0answers
55 views

Exchange performance counter analisys - Outlook not responding

Problem: Users experiencing poor Outlook(2010) performance, often got "Outlook trying to retreive data from exchange server...." message. Environment: Intel modular server On this terminal ...
0
votes
0answers
195 views

PerfMon: Processor Queue Length - Random high spikes

I'm investigating alleged high CPU usage on one of our client's servers. After about 1 business day of "normal" activity, PerfMon is reporting the following values for Processor Queue Length, and I'm ...
130
votes
2answers
52k views

What exactly do the colors in htop status bars mean?

By default, htop shows colored status bars for processors, memory, and swap. From left to right, the bars are colored green, blue, yellow, and red depending on some thresholds. What does it mean when ...
2
votes
0answers
135 views

Benchmarking for DISK I/O Writes Per Second - ElasticSearch and MySQL

During working on our project we needed to decide should we use "ElasticSearch" or "MySQL" to record the audit/trail logs of the system. Searching speed is not an issue here, we needed to see the disk ...
5
votes
2answers
364 views

explain server load

I have got a managed server with a AMD Phenom QuadCore 3000 + 8 GB RAM I heard that s.th between 1-2 server load is 100% workload. My current results there are: 1.27 | 0.8 | 0.78 and in the ...
0
votes
2answers
233 views

Linux dd: Is there a way to redirect its output for monitoring?

Sometime the servers in my workplace experience some weird behavior, it happens in random physical racks around different DC's around the world. It seems like there's a networking bandwidth issues ...
7
votes
4answers
8k views

Gigabit ethernet generally faster than Firewire 800?

If I want to transfer a large file between two computers, which are connected via LAN, would going through the network (setup as gigabit ethernet) be faster than using a direct Firewire 800 connection ...
0
votes
1answer
659 views

Php-Fpm: status URL for all pools

I have an ISPConfig server serving php pages with FPM in ondemand mode. On another server with a single fpm pool I keep daemon monitored using the /status URL and work great. In ISPConfig case there ...
0
votes
0answers
25 views

How to measure file access by process over time?

I would like to take a sampling of data / file access over the course of several hours or days in order to ascertain what processes (with their accompanying files) are consuming the most drive IO in ...
0
votes
0answers
24 views

How to ascertain where to effectively allocate server resources?

I have recently received an upgrade to one of my servers of a 256GB SSD drive (this is in addition to two other primary 1TB drives) and a memory upgrade bringing the server to 64GB from 32GB of RAM. ...
51
votes
10answers
14k views

How to [politely?] tell software vendor they don't know what they're talking about

Not a technical question, but a valid one nonetheless. Scenario: HP ProLiant DL380 Gen 8 with 2 x 8-core Xeon E5-2667 CPUs and 256GB RAM running ESXi 5.5. Eight VMs for a given vendor's system. ...
0
votes
0answers
86 views

How to monitor Windows mount points with Observium?

I am evaluating Observium for host and network monitoring and have many servers that use Windows mount points to mount the disks, rather than use drive letters. Using the standard SNMP service in ...
0
votes
1answer
255 views

Solaris: how to list swap space per process?

On Solaris, how can I find out how much swap space a given process is occupying? Or even better, how can I list all running processes sorted by swap space usage? I'm asking this particulary for ...