nstat_lookup_entry failed:2

I have this problem, as well, and I don't understand the prior comments about making it stop. What is an "OD"? I have only the Web server running on my new Mac Mini Server, no mail or anything. Is there an explaination in layman's terms for where this is coming from and how to make it stop?

Here is an excerpt from the log:

8/1/11 6:58:07.763 AM postfix/master: fatal: fe80::1%lo0:smtp: valid hostname or network address required

8/1/11 6:58:07.000 AM kernel: nstat_lookup_entry failed: 2

8/1/11 6:58:07.000 AM kernel: nstat_lookup_entry failed: 2

8/1/11 6:58:08.764 AM com.apple.launchd: (org.postfix.master[11099]) Exited with code: 1

8/1/11 6:58:08.764 AM com.apple.launchd: (org.postfix.master) Throttling respawn: Will start in 9 seconds

Thanks!

Well, for whatever it's worth, I exercised the "nuclear option." I have no need or desire for mail services on this machine, which apparently has something to do with the postfix.master references above, so I killed that process and prevented it from being loaded again.

sudo /bin/launchctl unload -w /System/Library/LaunchDaemons/org.postfix.master.plist

Messages went away.

Sorry about the acronyms. I get stumped by them too from time to time. OD = Open Directory which is what keeps track of your user accounts, groups, computers, The error you eliminated was related to mail:

8/1/11 6:58:07.763 AM postfix/master: fatal: fe80::1%lo0:smtp: valid hostname or network address required

That has nothing (that I'm aware of) to do with the other error weve been discussing which is the nstat_lookup failure. That error seems to recur every 2-3 minutes and be harmless. It's not eating up server cycles in any noticeable way for me and is most likely a benign bug.

I have these same "nstat_lookup_entry failed 2" errors in console like you are describing in Lion Server.

But I am running plain Lion, not the server version.

I don't have the faintest clue as to the problem, its possible consequences or how to fix it.

John

John,

In my case I looked at the error messages related to that one in the Console App. Then I Googled the terms I found there and learned it was related to something called postfix master, which is somehow related to mail servers. Now, mind you, I don't have any mail server stuff enabled so that made no sense but I had to accept that was what was happening. I then Googled on how to disable postfix master, and came up with the command line stuff I posted above.

Don't know how helpful that is, but maybe the workflow I employed is of some use.

Good luck!

Guys, I'm not sure if it's really related to Lion Server. I'm getting this message (kernel: nstat_lookup_entry failed: 2) on normal Mac OS X 10.7 Lion every 7 seconds and if I'm connected to a VPN every 3 seconds. VPN is now really reaaly slow and disconnects often.

It all worked great yesterday.

Based on the observations above, I looked at the services on my machine. I only had "Remote Management" and "Remote Login" turned on from the Sharing Preference Pane. While keeping Console open, I turned off Remote Management. Nothing. Turned it back on. Turning off "Remote Login" immediately ended the stream of errors.

So I think that's it. I'm running Lion 10.7 (client, not server). Not sure if it's a configuration error or something on Apple's end, but either way I've filed a developer bug report.

Cheers,

Demitri

This has been plaguing me as well

switching remote management on and off seems to invoke the error immediately

unfortunately, I need remote management on at all times

I have this issue as well, and I do not have Remote Login or Remote Management enabled! I do have Screen, File, Printer, and Scanner Sharing enabled.

Mine is an iMac with 10.7.1 installed (also was there with 10.7).

I originally had the "valid hostname" error as well, but I modified the httpd.conf file and got rid of that.

I've also got this issue on my Mac Mini 2010 under Lion. (not server).

I'm getting nstats all over the place and it's locking up my system every day or so.

Please someone, what the **** is this? 😟

I'm at the point where I'll move back to SL until it's sorted out.

Regards,
Simon

Same problem here: Spamming the Logs with

kernel: nstat_lookup_entry failed: 2

😠

HI there,

Can I ask a question please.

Is this causing your systems to actually lock up?

I'm getting this with my Mac Mini 2010. Sometimes I'll come back to it and the mouse has a wierd line through it, and I can't click on anything.

I'm having to reboot all the time (at least once every day) due to a lock up like this.

Is this the same for everyone else?

Regards,

Simon

For me: the server is running fine. Just spamming that error in the logs over and over again.

Hi all,

I am sure Apple is by now aware of this issue. We'll all have to wait for an OS update before it gets resolved. I strongly doubt that it is causing the crashes @SimonPickard is seeing however.

Cheers,

Demitri

When I used to see odd behavior as SimonPickard is seeing, it was usually related to hardware failure. Typically logic board. I would try to either boot to your recovery partition or boot off another system to see if the problem follows.