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Torsten.Meyer

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Hallo,

we have a strange Problem with Kerio. Each Friday beginning at 12:30 CEST the mailserver uses more than 330% of the cpu. The Webinterface is very slow, Working in Mail works. There are no specific Errors in the Logfiles. After 1 Hour all is normal ..

Server: Apple XServe with 2x3GHz Dual-Core, 16GB of RAM. Kerio Version 7.4.3 build 7813.
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j.a.duke

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Torsten.Meyer wrote on Fri, 26 April 2013 07:50
Hallo,

we have a strange Problem with Kerio. Each Friday beginning at 12:30 CEST the mailserver uses more than 330% of the cpu. The Webinterface is very slow, Working in Mail works. There are no specific Errors in the Logfiles. After 1 Hour all is normal ..

Server: Apple XServe with 2x3GHz Dual-Core, 16GB of RAM. Kerio Version 7.4.3 build 7813.


Can you get a process list of what is active at this time for us to review?

Also, is it one of the Kerio processes or just in general?

Thanks.

Cheers,
Jon
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Torsten.Meyer

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Hi Jon,

the only Process that goes high is the mailserver-process. From 100 - 380%. Normally it look like this in top:

Processes: 71 total, 2 running, 69 sleeping... 509 threads 15:53:32
Load Avg: 0.38, 0.52, 0.66 CPU usage: 4.66% user, 6.06% sys, 89.28% idle
SharedLibs: num = 7, resident = 34M code, 968K data, 3124K linkedit.
MemRegions: num = 17409, resident = 1462M + 15M private, 103M shared.
PhysMem: 1336M wired, 1671M active, 1397M inactive, 4398M used, 12G free.
VM: 4064M + 380M 6194936(0) pageins, 51846(0) pageouts

PID COMMAND %CPU TIME #TH #PRTS #MREGS RPRVT RSHRD RSIZE VSIZE
85039 tail 0.0% 0:00.02 1 13 17 80K 184K 300K 17M
80283 writeconfi 0.0% 0:00.03 1 21 53 484K 1276K 2280K 21M
62966 spamserver 0.0% 21:56.21 4 38 162 37M 3724K 41M 64M
19568 serialnumb 0.0% 6:43.91 3 30 32 220K 236K 840K 19M
18661 bash 0.0% 0:00.10 1 14 19 288K 184K 940K 18M
18660 login 0.0% 0:00.06 1 17 55 296K 248K 1080K 19M
18659 Terminal 0.0% 1:49.21 3 103 153 4492K 6112K 10M 111M
4791 top 6.5% 0:01.76 1 19 34 1204K 200K 1792K 19M
4782 sh 0.0% 0:00.01 1 14 18 204K 664K 844K 18M
4767 sshd 0.0% 0:00.12 1 19 59 412K 248K 1560K 22M
4766 launchprox 0.0% 0:00.00 1 14 21 128K 184K 596K 18M
4756 mdworker 0.0% 0:00.18 3 51 32 616K 1412K 2120K 30M
4552 ssh 0.0% 0:02.74 1 17 27 524K 436K 1372K 19M
4551 rsync 0.0% 12:59.10 1 14 739 190M 400K 191M 212M
4548 sh 0.0% 0:00.01 1 13 18 116K 664K 636K 18M
4547 cron 0.0% 0:00.00 1 8 28 32K 360K 216K 19M
4256 ssh 0.0% 0:16.03 1 17 50 2740K 436K 2536K 21M
4255 rsync 0.0% 14:27.74 1 14 744 191M 400K 191M 212M
4252 sh 0.0% 0:00.00 1 13 18 116K 664K 636K 18M
4251 cron 0.0% 0:00.00 1 8 28 32K 360K 216K 19M
4235 avserver 0.0% 0:17.23 9 61 2715 169M 1408K 174M 253M
281 System Pre 0.0% 15:04.02 6 152 294 13M 7644K 22M 130M
225 spamserver 0.0% 5:37:18 4 38 195 48M 3724K 52M 81M
218 AppleVNCSe 0.0% 3:10.86 6 73 65 12M 2216K 19M 67M
215 Finder 0.0% 18:22.23 5 148 172 3676K 10M 13M 123M
214 coreaudiod 0.0% 0:00.05 2 111 48 1196K 308K 2216K 20M
213 SystemUISe 0.0% 2:38.18 8 204 198 3036K 5036K 7844K 103M
212 ATSServer 0.0% 0:03.49 2 83 63 708K 1568K 2364K 60M
211 Dock 0.0% 0:04.62 3 100 150 1244K 4592K 7000K 69M
209 pboard 0.0% 0:00.00 1 15 23 148K 184K 588K 19M
205 UserEventA 0.0% 0:08.59 3 133 84 1108K 1512K 3100K 31M
204 Spotlight 0.0% 0:00.33 4 78 87 1328K 2500K 4712K 46M
202 ARDAgent 0.0% 47:02.51 4 180 51 1120K 1120K 3384K 29M
199 AirPort Ba 0.0% 0:13.19 2 57 65 644K 1940K 3012K 73M
195 launchd 0.0% 1:00.86 3 130 24 188K 304K 520K 18M
144 mailserver 30.8% 1097 hrs 269 920 7217 651M- 632K 683M- 951M-
140 krb5kdc 0.0% 0:00.01 1 17 42 264K 188K 1216K 18M
139 CoreRAIDSe 0.0% 10:27.83 1 33 31 276K 340K 1332K 19M
136 kdcmond 0.0% 5:58.96 2 24 19 264K 184K 1028K 18M
131 WindowServ 0.0% 31:22.40 9 177 253 9052K 6444K 25M 148M
120 coreservic 0.0% 1:52.22 2 108 80 1304K 7140K 8448K 28M
107 watchkms 0.0% 20:40.81 1 15 19 212K 184K 1412K 18M
104 autofsd 0.0% 0:00.00 1 21 18 148K 184K 672K 18M
98 dynamic_pa 0.0% 0:00.01 1 17 20 160K 184K 704K 18M
97 emond 0.0% 46:33.11 1 31 22 368K 596K 1912K 27M

If it goes high, the only Process that changed is the mail server-process.

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MacLab

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Looks like you have a couple of rsync operations happening

sorry--I read that wrong since rsync is taking very little CPU at least from what you show.

[Updated on: Sat, 27 April 2013 17:13]


MacLab, Inc.
Kerio Certified Partner, Reseller, Hosting Provider, Kerio Connect Certified.
http://maclaboratory.com
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Torsten.Meyer

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Hello,
the Problem still exist - looks like this in top:

Processes: 66 total, 3 running, 63 sleeping... 596 threads 12:51:38
Load Avg: 18.10, 17.92, 17.36 CPU usage: 28.15% user, 64.53% sys, 7.32% idle
SharedLibs: num = 7, resident = 34M code, 976K data, 3124K linkedit.
MemRegions: num = 16846, resident = 1248M + 14M private, 261M shared.
PhysMem: 1340M wired, 1462M active, 1249M inactive, 4046M used, 12G free.
VM: 3776M + 380M 7084319(0) pageins, 51865(0) pageouts

PID COMMAND %CPU TIME #TH #PRTS #MREGS RPRVT RSHRD RSIZE VSIZE
80283 writeconfi 0.0% 0:00.03 1 21 53 484K 1276K 2280K 21M
62966 spamserver 0.0% 24:39.38 4 38 163 40M 3724K 43M 72M
20869 top 6.8% 0:01.18 1 19- 34 976K 200K 1564K 19M
20840 sh 0.0% 0:00.11 1 14 18 204K 668K 844K 18M
20800 sshd 0.0% 0:00.11 1 19 59 412K 248K 1560K 22M
20799 launchprox 0.0% 0:00.00 1 14 21 128K 184K 596K 18M
19568 serialnumb 0.0% 7:42.97 3 30 32 220K 236K 840K 19M
18661 bash 0.0% 0:00.12 1 14 19 288K 184K 940K 18M
18660 login 0.0% 0:00.06 1 17 55 296K 248K 1080K 19M
18659 Terminal 0.0% 2:05.95 3 103 158 4920K 6216K 11M 112M
8477 ssh 0.0% 0:02.69 1 17 26 504K 188K 1352K 19M
8476 rsync 0.0% 12:45.50 1 14 736 190M 184K 190M 211M
8473 sh 0.0% 0:00.00 1 13 18 116K 668K 636K 18M
8472 cron 0.0% 0:00.00 1 8 28 32K 360K 216K 19M
7460 avserver 0.0% 0:19.28 9 61 2635 164M 1408K 168M 247M
7224 tail 0.0% 0:00.01 1 13 17 80K 184K 300K 17M
281 System Pre 0.0% 17:24.21 6 152 294 13M 6272K 20M 130M
225 spamserver 0.0% 6:23:12 4 38 205 49M 3724K 52M 81M
218 AppleVNCSe 0.0% 3:34.51 6 73 65 11M 2244K 19M 67M
215 Finder 0.0% 21:09.47 5 149 171 3676K 10M 13M 122M
214 coreaudiod 0.0% 0:00.05 2 111 48 1196K 308K 2216K 20M
213 SystemUISe 0.0% 3:02.20 8 204 198 3124K 5104K 7932K 103M
212 ATSServer 0.0% 0:04.01 2 83 63 708K 1568K 2364K 60M
211 Dock 0.0% 0:05.32 3 100 151 1268K 4620K 7060K 69M
209 pboard 0.0% 0:00.00 1 15 23 148K 184K 588K 19M
205 UserEventA 0.0% 0:09.85 3 133 84 1108K 1512K 3100K 31M
204 Spotlight 0.0% 0:00.34 4 78 87 1328K 2568K 4712K 46M
202 ARDAgent 0.0% 47:56.14 4 194 51 1176K 1120K 3440K 29M
199 AirPort Ba 0.0% 0:14.16 2 57 65 644K 1980K 3012K 73M
195 launchd 0.0% 1:10.29 3 130 24 212K 304K 520K 18M
144 mailserver 340.9% 1262 hrs 363 1004+ 7606 625M- 632K 663M+ 965M+
140 krb5kdc 0.0% 0:00.01 1 17 42 264K 188K 1216K 18M
139 CoreRAIDSe 0.0% 12:03.09 1 33 31 276K 340K 1332K 19M
136 kdcmond 0.0% 6:53.16 2 24 19 264K 184K 1028K 18M
131 WindowServ 0.0% 36:02.21 9 177 252 7924K 4904K 23M 147M
120 coreservic 0.0% 2:09.41 2 106 81 1280K 7564K 8868K 28M
107 watchkms 0.0% 23:51.69 1 15 19 212K 184K 1412K 18M
104 autofsd 0.0% 0:00.00 1 21 18 148K 184K 672K 18M
98 dynamic_pa 0.0% 0:00.01 1 17 20 160K 184K 704K 18M
97 emond 0.0% 53:31.78 1 31 22 368K 596K 1912K 27M
95 fseventsd 0.0% 16:36.00 6 48 44 1152K 184K 1656K 21M
93 hidd 0.0% 0:00.00 2 28 20 124K 204K 600K 18M
92 hwmond 0.6% 17:49:17 3 65 125 80M 412K 81M 98M
90 KernelEven 0.0% 0:00.00 2 20 19 160K 184K 652K 18M
89 loginwindo 0.0% 0:09.34 3 186 159 3256K 6592K 8692K 113M


Any ideas anyone ?
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mwd

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Kerio backup running?
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Torsten.Meyer

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No, nothing. And only the Webinterface is terribly (unusable) slow. No Problem with Mail or Outlook under OS X-Clients.
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b-tom

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Did you enable the Full text search? This process uses a lot of CPU power.
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Torsten.Meyer

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The Problem only exist on Friday between 12:20 and 13:20 - at not other Time. And no, Full Text Search is disabled.
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Pavel Dobry (Kerio)

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Each 7 days the message store runs background check of it's internal databases. But it is performed by external bdbchecker process, not with main mailserver process.
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Torsten.Meyer

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Any Ideas anyone ? The Problem still exist and because of the massive changes in Kerio 8.2 we don't won't to upgrade now. Are there any config-file we can look ?
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Torsten.Meyer

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I found this in the Debug-Log when the CPU-Usage gets high:

[01/Nov/2013 12:07:48][3057684480] {storecheck} BDBChecker: File: /usr/local/kerio/mailserver/store/mail/
[01/Nov/2013 12:07:48][3057684480] {storecheck} StorageCheck:

Where can i change the time when the storage-check runs ? Any Idea anyone ? Maybe someone from KERIO ?
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Torsten.Meyer

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So every Friday it looks like Kerio is starting the store check:
[01/Nov/2013 12:02:01][3057684480] {storecheck} StorageCheck: bdbFolderCheck: Message store control has started.
[01/Nov/2013 14:23:28][3057684480] {storecheck} StorageCheck: bdbFolderCheck: Message store control is finished (no damaged files were found).

How can i configure this ? There a more than 2 hours in which users cannot login via the webinterface - we have over 300 users. Anyone ?
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tomislav.parcina

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Torsten.Meyer wrote on Fri, 01 November 2013 14:31
So every Friday it looks like Kerio is starting the store check:
[01/Nov/2013 12:02:01][3057684480] {storecheck} StorageCheck: bdbFolderCheck: Message store control has started.
[01/Nov/2013 14:23:28][3057684480] {storecheck} StorageCheck: bdbFolderCheck: Message store control is finished (no damaged files were found).

How can i configure this ? There a more than 2 hours in which users cannot login via the webinterface - we have over 300 users. Anyone ?


Dear Torsten,

It seams that I have the same issue. Can you please inform me have you solved your problem?

Thank you in advance on your reply.

Best regards.

--
Tomislav ParĨina
Tomislav

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We are having the same problem (only it goes on for hours and hours and hours).
Our current workaround is to restart Kerio service. After the restart we get 1 hour of normal server response before the checker restarts.

It sucks, but that's all we can do until we can set the time for this checker.

Any chance this problem will be addressed in future updates?
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