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Questions tagged [intermittent]

14 questions
5
votes
8 answers

Apache gets "clogged" with certain requests

I have a very odd intermittent issue. It occurs on a shared hosting server running CentOS and Apache/2.2.8, serving mostly PHP based websites at a rate of between 10 - 30 requests/sec. 3.5 GB RAM, kernel 2.6.9-67.0.7ELsmp in case that matters. What…
Josh
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3
votes
1 answer

RHEL BIND Server Intermittent error

I have a RHEL 5.7 server running bind-9.3.6-16.P1.el5. At seemingly random points during the day, the DNS will fail to resolve hosts on the LAN for about ten seconds. WAN hosts always resolve. Then it goes back to working fine. I have logging…
Chris E.
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2
votes
1 answer

Linux kernel bug w/ netns and/or Xen guest - "unregister_netdevice: waiting for lo to become free"

I am running a web crawler in a Xen-based VM (on Linode); it makes heavy use of network namespaces to control use of VPNs on a per-crawl-process basis. It's been running mostly continuously for the past six months. Intermittently - at a rate of…
zwol
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2
votes
1 answer

Intermittent DNS timeout

I have a network set up, and recently replaced our two Windows Server 2008 R2 domain controllers with two Windows Server 2012 R2 domain controllers. Both are VMs, each on a different physical machine. Both of my domain controllers have DNS server…
Zarek
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2
votes
0 answers

Intermittently git push hangs over ssh to gitosis

I have an intermittent problem pushing to my git (gitosis) repository. Most of the time it works fine but when it doesn't work the push hangs. It seems to have done the majority of what it wants to do: $ git push Counting objects: 67, done. Delta…
Shadwell
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2
votes
1 answer

Connect to Apache times out randomly

We are trying to set up an Apache server on a remote machine, but we experience strange behaviour. Checking with telnet remote.machine 80, one of these things happen randomly: Connect and serve content normally (no delay) Connect after a long…
Amadan
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1
vote
1 answer

Occasional "failed to respond" from AWS hosted Elasticsearch

We have an Elasticsearch cluster hosted on Amazon Elasticsearch Service (AWS). We are using the Jest Java HTTP Rest client for ElasticSearch. Every now and then (perhaps 1 in 10,000 requests), it appears to close the connection without a…
Rich
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1
vote
1 answer

Exchange 2003 Intermittent Active Sync Connectivity

Our environment is Active Directory 2003, Exchange 2003, with a mix of 2003, 2008 R2 servers. The only thing from the exchange side that does not work is Active-Sync with mobile phones. OWA is working fine (very responsive). When I enable Outlook…
vsmal
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1
vote
1 answer

Intermittent 404 errors on IIS6, serving classic ASP content

We have 2 IIS6 web servers running in a cluster. Intermittently we receive a 404 / 500 error, if it's a 500 error i get an email with the line number, i check that line in the asp file and it's always an include, check the log and it's reported as…
dylan
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1
vote
2 answers

Windows 2003 Server Intermittent DNS Issues

Looking for a little help here. I have a Windows 2003 DNS Server set up on our network. Lately computers on our LAN have been, at times, unable to resolve a certain sub domain for our website whereas other times the request is resolved just fine.…
Mike
0
votes
2 answers

Microsoft Exchange sending to incorrect mail server address

My client is having intermittent problems sending email to a few customers. It has really only happened in the last five days and so far only to six different messages but they all have the same differences between a working and failed delivery. In…
N10
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0
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1 answer

Intermittent issues on iis 7.5 site running wordpress, internal error 500

This happened to a wordpress site that was working previously, the server is running IIS 7.5 on Server 2k8 R2 (fully patched). On the friendsofridingmountain.ca site, browsing through the pages will intermittently get you a internal server error 500…
user2005871
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0
votes
0 answers

Intermittent network failures, limited to certain client subnets

We've been seeing intermittent network failures. The failure mode tends to be that long running connections tend to drop out. We see it most with ssh and samba connections, although some occasional http failures happen as well. On the subnets that…
Dan Monego
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0
votes
0 answers

Intermittent Drops on Windows File Server

We have a Windows Storage Server (2003 R2) that serves as our NAS for our company. Over the past several weeks we have begun to experience intermittent "drops" where the client briefly loses their connection to the server. This can be when…
N1njaB0b
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