Mac Mini Server Overheating

[RRTXmacAdmin]

I have posted to the Apple community already with no responses, so I figured I would keep trying my sources.

I am experiencing overheating issues with my Mac Mini netboot server. Below is what I am working with.

Model Name: Mac mini Late 2012 Model Identifier: Macmini6,2 Processor Name: Intel Core i7 Processor Speed: 2.6 GHz Number of Processors: 1 Total Number of Cores: 4 L2 Cache (per Core): 256 KB L3 Cache: 6 MB Memory: 16 GB Boot ROM Version: MM61.0106.B04 SMC Version (system): 2.8f1 System Version: OS X 10.9.4 (13E28) Kernel Version: Darwin 13.3.0 Boot Volume: Macintosh HD Boot Mode: Normal Server Version: 3.1.2 (13S4517) Netboot OS: 10.9.3 (Available via NFS)

And this is part of the log file from the server. This is occurring around the same time every day. Are there certain ports or services that are possibly being blocked by the firewall? Is this a domain or DNS issue? I have already had the device checked out by the Apple Store and they were unable to replicate the issue. Any advice would be greatly appreciated.

7/8/14 5:20:28.512 PM bootpd[26914]: server name casperghost1.local
7/8/14 5:20:28.512 PM bootpd[26914]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 5:20:28.514 PM bootpd[26914]: bsdpd: re-reading configuration
7/8/14 5:20:28.514 PM bootpd[26914]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 5:20:28.514 PM bootpd[26914]: bsdpd: age time 00:15:00
7/8/14 5:33:19.730 PM bootpd[27403]: server name casperghost1.local
7/8/14 5:33:19.731 PM bootpd[27403]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 5:33:19.732 PM bootpd[27403]: bsdpd: re-reading configuration
7/8/14 5:33:19.732 PM bootpd[27403]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 5:33:19.732 PM bootpd[27403]: bsdpd: age time 00:15:00
7/8/14 5:44:21.163 PM bootpd[27699]: server name casperghost1.local
7/8/14 5:44:21.163 PM bootpd[27699]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 5:44:21.197 PM bootpd[27699]: bsdpd: re-reading configuration
7/8/14 5:44:21.197 PM bootpd[27699]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 5:44:21.197 PM bootpd[27699]: bsdpd: age time 00:15:00
7/8/14 5:50:16.280 PM WindowServer[26887]: device_generate_desktop_screenshot: authw 0x0(0), shield 0x0(0)
7/8/14 5:50:16.286 PM WindowServer[26887]: device_generate_lock_screen_screenshot: authw 0x0(0), shield 0x0(0)
7/8/14 5:52:17.821 PM bootpd[27893]: server name casperghost1.local
7/8/14 5:52:17.821 PM bootpd[27893]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 5:52:17.822 PM bootpd[27893]: bsdpd: re-reading configuration
7/8/14 5:52:17.822 PM bootpd[27893]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 5:52:17.822 PM bootpd[27893]: bsdpd: age time 00:15:00
7/8/14 6:03:41.900 PM bootpd[28169]: server name casperghost1.local
7/8/14 6:03:41.900 PM bootpd[28169]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 6:03:41.901 PM bootpd[28169]: bsdpd: re-reading configuration
7/8/14 6:03:41.901 PM bootpd[28169]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 6:03:41.901 PM bootpd[28169]: bsdpd: age time 00:15:00
7/8/14 6:08:49.506 PM bootpd[28292]: server name casperghost1.local
7/8/14 6:08:49.506 PM bootpd[28292]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 6:08:49.507 PM bootpd[28292]: bsdpd: re-reading configuration
7/8/14 6:08:49.507 PM bootpd[28292]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 6:08:49.507 PM bootpd[28292]: bsdpd: age time 00:15:00
7/8/14 6:39:32.935 PM bootpd[29035]: server name casperghost1.local
7/8/14 6:39:32.935 PM bootpd[29035]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 6:39:32.936 PM bootpd[29035]: bsdpd: re-reading configuration
7/8/14 6:39:32.936 PM bootpd[29035]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 6:39:32.936 PM bootpd[29035]: bsdpd: age time 00:15:00
7/8/14 6:50:36.261 PM bootpd[29307]: server name casperghost1.local
7/8/14 6:50:36.261 PM bootpd[29307]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 6:50:36.262 PM bootpd[29307]: bsdpd: re-reading configuration
7/8/14 6:50:36.262 PM bootpd[29307]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 6:50:36.262 PM bootpd[29307]: bsdpd: age time 00:15:00
7/8/14 7:01:38.706 PM bootpd[29577]: server name casperghost1.local
7/8/14 7:01:38.706 PM bootpd[29577]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 7:01:38.707 PM bootpd[29577]: bsdpd: re-reading configuration
7/8/14 7:01:38.707 PM bootpd[29577]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 7:01:38.707 PM bootpd[29577]: bsdpd: age time 00:15:00
7/8/14 7:10:22.446 PM bootpd[29785]: server name casperghost1.local
7/8/14 7:10:22.446 PM bootpd[29785]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 7:10:22.447 PM bootpd[29785]: bsdpd: re-reading configuration
7/8/14 7:10:22.447 PM bootpd[29785]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 7:10:22.447 PM bootpd[29785]: bsdpd: age time 00:15:00
7/8/14 7:23:42.091 PM bootpd[30110]: server name casperghost1.local
7/8/14 7:23:42.091 PM bootpd[30110]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 7:23:42.092 PM bootpd[30110]: bsdpd: re-reading configuration
7/8/14 7:23:42.092 PM bootpd[30110]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 7:23:42.093 PM bootpd[30110]: bsdpd: age time 00:15:00
7/8/14 7:36:59.813 PM bootpd[30436]: server name casperghost1.local
7/8/14 7:36:59.813 PM bootpd[30436]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 7:36:59.814 PM bootpd[30436]: bsdpd: re-reading configuration
7/8/14 7:36:59.814 PM bootpd[30436]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 7:36:59.814 PM bootpd[30436]: bsdpd: age time 00:15:00
7/8/14 7:45:47.289 PM bootpd[30647]: server name casperghost1.local
7/8/14 7:45:47.289 PM bootpd[30647]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 7:45:47.290 PM bootpd[30647]: bsdpd: re-reading configuration
7/8/14 7:45:47.290 PM bootpd[30647]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 7:45:47.290 PM bootpd[30647]: bsdpd: age time 00:15:00
7/8/14 8:05:17.495 PM bootpd[31119]: server name casperghost1.local
7/8/14 8:05:17.495 PM bootpd[31119]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 8:05:17.496 PM bootpd[31119]: bsdpd: re-reading configuration
7/8/14 8:05:17.496 PM bootpd[31119]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 8:05:17.496 PM bootpd[31119]: bsdpd: age time 00:15:00
7/8/14 8:24:54.093 PM bootpd[31595]: server name casperghost1.local
7/8/14 8:24:54.093 PM bootpd[31595]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 8:24:54.094 PM bootpd[31595]: bsdpd: re-reading configuration
7/8/14 8:24:54.094 PM bootpd[31595]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 8:24:54.094 PM bootpd[31595]: bsdpd: age time 00:15:00
7/8/14 8:38:46.648 PM bootpd[31934]: server name casperghost1.local
7/8/14 8:38:46.648 PM bootpd[31934]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 8:38:46.649 PM bootpd[31934]: bsdpd: re-reading configuration
7/8/14 8:38:46.650 PM bootpd[31934]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 8:38:46.650 PM bootpd[31934]: bsdpd: age time 00:15:00
7/8/14 8:48:27.064 PM bootpd[32167]: server name casperghost1.local
7/8/14 8:48:27.064 PM bootpd[32167]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 8:48:27.065 PM bootpd[32167]: bsdpd: re-reading configuration
7/8/14 8:48:27.066 PM bootpd[32167]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 8:48:27.066 PM bootpd[32167]: bsdpd: age time 00:15:00
7/8/14 9:03:03.584 PM bootpd[32523]: server name casperghost1.local
7/8/14 9:03:03.584 PM bootpd[32523]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 9:03:03.585 PM bootpd[32523]: bsdpd: re-reading configuration
7/8/14 9:03:03.585 PM bootpd[32523]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 9:03:03.586 PM bootpd[32523]: bsdpd: age time 00:15:00
7/8/14 9:15:45.436 PM bootpd[32827]: server name casperghost1.local
7/8/14 9:15:45.436 PM bootpd[32827]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 9:15:45.437 PM bootpd[32827]: bsdpd: re-reading configuration
7/8/14 9:15:45.438 PM bootpd[32827]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 9:15:45.438 PM bootpd[32827]: bsdpd: age time 00:15:00
7/8/14 9:24:36.175 PM bootpd[33044]: server name casperghost1.local
7/8/14 9:24:36.176 PM bootpd[33044]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 9:24:36.177 PM bootpd[33044]: bsdpd: re-reading configuration
7/8/14 9:24:36.177 PM bootpd[33044]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 9:24:36.177 PM bootpd[33044]: bsdpd: age time 00:15:00
7/8/14 9:38:21.779 PM bootpd[33378]: server name casperghost1.local
7/8/14 9:38:21.780 PM bootpd[33378]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 9:38:21.781 PM bootpd[33378]: bsdpd: re-reading configuration
7/8/14 9:38:21.781 PM bootpd[33378]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 9:38:21.781 PM bootpd[33378]: bsdpd: age time 00:15:00
7/8/14 9:58:16.223 PM bootpd[33862]: server name casperghost1.local
7/8/14 9:58:16.223 PM bootpd[33862]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 9:58:16.255 PM bootpd[33862]: bsdpd: re-reading configuration
7/8/14 9:58:16.255 PM bootpd[33862]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 9:58:16.255 PM bootpd[33862]: bsdpd: age time 00:15:00
7/8/14 10:08:04.575 PM bootpd[34100]: server name casperghost1.local
7/8/14 10:08:04.575 PM bootpd[34100]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 10:08:04.576 PM bootpd[34100]: bsdpd: re-reading configuration
7/8/14 10:08:04.576 PM bootpd[34100]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 10:08:04.576 PM bootpd[34100]: bsdpd: age time 00:15:00
7/8/14 10:14:24.738 PM bootpd[34253]: server name casperghost1.local
7/8/14 10:14:24.738 PM bootpd[34253]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 10:14:24.739 PM bootpd[34253]: bsdpd: re-reading configuration
7/8/14 10:14:24.740 PM bootpd[34253]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 10:14:24.740 PM bootpd[34253]: bsdpd: age time 00:15:00
7/8/14 10:33:43.231 PM bootpd[34719]: server name casperghost1.local
7/8/14 10:33:43.231 PM bootpd[34719]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 10:33:43.233 PM bootpd[34719]: bsdpd: re-reading configuration
7/8/14 10:33:43.233 PM bootpd[34719]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 10:33:43.233 PM bootpd[34719]: bsdpd: age time 00:15:00
7/8/14 10:40:16.223 PM bootpd[34879]: server name casperghost1.local
7/8/14 10:40:16.223 PM bootpd[34879]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 10:40:16.224 PM bootpd[34879]: bsdpd: re-reading configuration
7/8/14 10:40:16.224 PM bootpd[34879]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 10:40:16.224 PM bootpd[34879]: bsdpd: age time 00:15:00
7/8/14 11:04:29.466 PM bootpd[35471]: server name casperghost1.local
7/8/14 11:04:29.466 PM bootpd[35471]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 11:04:29.467 PM bootpd[35471]: bsdpd: re-reading configuration
7/8/14 11:04:29.467 PM bootpd[35471]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 11:04:29.467 PM bootpd[35471]: bsdpd: age time 00:15:00
7/8/14 11:24:21.687 PM bootpd[35952]: server name casperghost1.local
7/8/14 11:24:21.687 PM bootpd[35952]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 11:24:21.688 PM bootpd[35952]: bsdpd: re-reading configuration
7/8/14 11:24:21.688 PM bootpd[35952]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 11:24:21.688 PM bootpd[35952]: bsdpd: age time 00:15:00
7/8/14 11:31:56.812 PM bootpd[36140]: server name casperghost1.local
7/8/14 11:31:56.812 PM bootpd[36140]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 11:31:56.813 PM bootpd[36140]: bsdpd: re-reading configuration
7/8/14 11:31:56.813 PM bootpd[36140]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 11:31:56.813 PM bootpd[36140]: bsdpd: age time 00:15:00
7/8/14 11:50:45.617 PM bootpd[36600]: server name casperghost1.local
7/8/14 11:50:45.618 PM bootpd[36600]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/8/14 11:50:45.619 PM bootpd[36600]: bsdpd: re-reading configuration
7/8/14 11:50:45.619 PM bootpd[36600]: bsdpd: shadow file size will be set to 48 megabytes
7/8/14 11:50:45.619 PM bootpd[36600]: bsdpd: age time 00:15:00
7/9/14 12:10:44.428 AM bootpd[37091]: server name casperghost1.local
7/9/14 12:10:44.428 AM bootpd[37091]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/9/14 12:10:44.429 AM bootpd[37091]: bsdpd: re-reading configuration
7/9/14 12:10:44.429 AM bootpd[37091]: bsdpd: shadow file size will be set to 48 megabytes
7/9/14 12:10:44.429 AM bootpd[37091]: bsdpd: age time 00:15:00
7/9/14 12:15:58.243 AM spindump[37219]: Saved diag report for powerstats version com.apple.SystemStats.PostInstall to /Library/Logs/DiagnosticReports/powerstats_2014-07-09-001558_casperghost1.diag
7/9/14 12:17:23.000 AM kernel[0]: process systemstats[37197] thread 221653 caught burning CPU! It used more than 50% CPU (Actual recent usage: 62%) over 180 seconds. thread lifetime cpu usage 90.026384 seconds, (88.052322 user, 1.974062 system) ledger info: balance: 90007382662 credit: 90007382662 debit: 0 limit: 90000000000 (50%) period: 180000000000 time since last refill (ns): 143173943245
7/9/14 12:17:23.851 AM spindump[37258]: Saved cpu_resource.spin report for systemstats version ??? (???) to /Library/Logs/DiagnosticReports/systemstats_2014-07-09-001723_casperghost1.cpu_ resource.spin
7/9/14 12:17:40.975 AM spindump[37267]: Saved diag report for powerstats version com.apple.SystemStats.Daily to /Library/Logs/DiagnosticReports/powerstats_2014-07-09-001740_casperghost1.diag
7/9/14 12:31:15.375 AM bootpd[37601]: server name casperghost1.local
7/9/14 12:31:15.375 AM bootpd[37601]: interface en0: ip 10.3.254.107 mask 255.255.255.0
7/9/14 12:31:15.376 AM bootpd[37601]: bsdpd: re-reading configuration
7/9/14 12:31:15.376 AM bootpd[37601]: bsdpd: shadow file size will be set to 48 megabytes
7/9/14 12:31:15.376 AM bootpd[37601]: bsdpd: age time 00:15:00

[alexjdale]

Did you upgrade it to Mavericks recently? This was a known bug with the systemstats process, an issue with the old database. Here is one thread:

https://discussions.apple.com/message/23570188

[pblake]

SSD or HD? I find the SSD's work much better and overheat less.

[johncwelch]

What are your current netboot settings on that server? that may be of use in assisting you.

also, have you checked the placement of the machine, airflow, etc? Minis still need decent airflow and a coolish floor surface to rest on.

[Sonic84]

"caught burning CPU!" this comes up when a process goes nuts. I see this all the time when McAfee Antivirus is doing its scans or when it is attempting to update itself. It doesn't mean it's physically overheating (at least in my case...). As @alexjdale pointed out, the root cause is most likely software. If you want to be sure the Mac is physically OK, you may want to run a AST MRI scan on the server. MRI will check the condition of the systems thermal sensors. In the event of a actual thermal overload, the server should hard power off to save itself from damage.

[RRTXmacAdmin]

Thank you everyone for the feedback. I will be testing some of these items today as time permits and will post any new findings I come up with.

alexjdale - I've only had the device for about a month now, and it shipped with Mavericks.

pblake - Two 1TB HD

johncwelch - Netboot settings: Netinstall enabled for ethernet, Availability = NFS, Access = all Mac models, Advanced = Image Index: 832. Is there a specific setting you are looking for? Also, the Mini is in our data center, so air temp and flow are def not factors in this case.

Sonic84 - I came across an article that mentioned being on a .local domain can wreak havoc on the Mini's server processes, that's why I originally asked if this could possibly be a domain or network issue of some sort. My expertise are not in that area unfortunately. Again, Apple Store had the device for several days and ran extensive tests and verified hardware was not the issue, and suggested the problem was more than likely environmental issues. That's when I started pulling logs and found what I posted.

[gskibum]

My experience is on par with pblake. I have a few of both SSD and spin Mac minis and the fans come on much less with the SSD units.

[RRTXmacAdmin]

Is anyone able to interpret the log that was submitted? I would like to know what bootpd: bsdpd: is referring to and what might be causing this to happen. Thanks again for the help!

[bentoms]

They are processes of NetBoot I believe.

Is this happening when NetBooting? are the mini's Disks ok?

[RRTXmacAdmin]

I am seeing these processes after district operating hours when no one should be netbooting. That is what I am so perplexed about. The disks are good. I have run all of the diagnostics available, and I've completely rebuilt the OS twice. In addition, Apple store couldn't find anything either. They suggested its my environment.

[lwaege]

Did you ever find a resolution for this? I'm experiencing the same thing with 5 of 15 new Mac Mini Servers.