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Posted to users@tomcat.apache.org by Troy Davidson <td...@cmcflex.com> on 2006/06/21 18:52:04 UTC
mod_jk Status Busy Number
We are doing load balancing with Apache and mod_jk. We have five
instances of Tomcat running on three servers. Two Tomcat instances are
fine. But, Three Tomcat instances show really high "Busy" numbers on
the Status page. Here is what it looks like:
Name Type Host Addr Stat F V Acc Err Wr
Rd Busy Max RR Cd
tomcat24 ajp13 10.9.100.2:24009 10.9.100.2:24009 Stopped
1 6 59803 96 0 0 4294967294 48
tomcat14 ajp13 10.9.100.1:14009 10.9.100.1:14009 OK 1
9 166945 232 0 0 19 76
tomcat15 ajp13 10.9.100.1:15009 10.9.100.1:15009 Stopped
1 6 59812 99 0 0 4294967292 58
tomcat34 ajp13 10.9.100.3:34009 10.9.100.3:34009 OK 1
8 166945 211 0 0 11 97
tomcat35 ajp13 10.9.100.3:35009 10.9.100.3:35009 Stopped
1 7 59878 86 0 0 4294967293 51
The number of Busy connections are over 4 billion?!?! I didn't think we
were that popular. ;)
The strange thing is that these numbers come and go with each refresh of
the page. They will be there, hit refresh, and they are gone. Hit
refresh again, and they are back. The numbers will only bounce between
those three instances. The tomcat14 and tomcat34 won't see them, and
work fine.
We have had to stop those three since it was affecting the app. It
seems session replication was affected. As soon as those three were
stopped, things work fine.
The configs of the five instances are identical except for ports
obviously. Has anyone seen a similar behavior? Thanks.
--
++++++++++++++++++++++++++++++++++
Troy Davidson
Java Programmer
PC/Web Team
CMC/Flex
8520 South Sandy Parkway
Sandy, UT 84070
(801) 365-5000
www.cmcflex.com
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Re: mod_jk Status Busy Number
Posted by Rainer Jung <ra...@kippdata.de>.
This bug has been fixed in version 1.2.16.
We just now tagged 1.2.16. A release candidate is available. Please have
a look at
http://marc.theaimsgroup.com/?l=tomcat-dev&m=115194553720728&w=2
Test results are welcome. If no new problems will be found, the release
vote will procees starting Friday.
The final release will be announced on this list and on the dev list.
Troy Davidson schrieb:
> Here is that data a bit better:
>
> Name Type Host Addr Stat F V Acc Err Wr
> Rd Busy Max RR Cd
>
> tomcat24 ajp13 10.9.100.2:24009 10.9.100.2:24009 Stopped
> 1 6 59803 96 0 0 4294967294 48 tomcat14
> ajp13 10.9.100.1:14009 10.9.100.1:14009 OK 1 9
> 166945 232 0 0 19 76
> tomcat15 ajp13 10.9.100.1:15009 10.9.100.1:15009 Stopped
> 1 6 59812 99 0 0 4294967292 58
> tomcat34 ajp13 10.9.100.3:34009 10.9.100.3:34009 OK 1
> 8 166945 211 0 0 11 97
> tomcat35 ajp13 10.9.100.3:35009 10.9.100.3:35009 Stopped
> 1 7 59878 86 0 0 4294967293 51
>
> Troy Davidson wrote:
>> We are doing load balancing with Apache and mod_jk. We have five
>> instances of Tomcat running on three servers. Two Tomcat instances
>> are fine. But, Three Tomcat instances show really high "Busy" numbers
>> on the Status page. Here is what it looks like:
>>
>> Name Type Host Addr Stat F V Acc Err Wr
>> Rd Busy Max RR Cd
>> tomcat24 ajp13 10.9.100.2:24009 10.9.100.2:24009
>> Stopped 1 6 59803 96 0 0 4294967294
>> 48 tomcat14 ajp13 10.9.100.1:14009
>> 10.9.100.1:14009 OK 1 9 166945 232 0 0 19
>> 76 tomcat15 ajp13 10.9.100.1:15009
>> 10.9.100.1:15009 Stopped 1 6 59812 99 0 0
>> 4294967292 58 tomcat34 ajp13 10.9.100.3:34009
>> 10.9.100.3:34009 OK 1 8 166945 211 0 0 11
>> 97 tomcat35 ajp13 10.9.100.3:35009
>> 10.9.100.3:35009 Stopped 1 7 59878 86 0 0
>> 4294967293 51 The number of Busy connections are over 4
>> billion?!?! I didn't think we were that popular. ;)
>>
>> The strange thing is that these numbers come and go with each refresh
>> of the page. They will be there, hit refresh, and they are gone. Hit
>> refresh again, and they are back. The numbers will only bounce
>> between those three instances. The tomcat14 and tomcat34 won't see
>> them, and work fine.
>>
>> We have had to stop those three since it was affecting the app. It
>> seems session replication was affected. As soon as those three were
>> stopped, things work fine.
>> The configs of the five instances are identical except for ports
>> obviously. Has anyone seen a similar behavior? Thanks.
>>
>
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Re: mod_jk Status Busy Number
Posted by Troy Davidson <td...@cmcflex.com>.
Here is that data a bit better:
Name Type Host Addr Stat F V Acc Err Wr
Rd Busy Max RR Cd
tomcat24 ajp13 10.9.100.2:24009 10.9.100.2:24009 Stopped
1 6 59803 96 0 0 4294967294 48
tomcat14 ajp13 10.9.100.1:14009 10.9.100.1:14009 OK 1
9 166945 232 0 0 19 76
tomcat15 ajp13 10.9.100.1:15009 10.9.100.1:15009 Stopped
1 6 59812 99 0 0 4294967292 58
tomcat34 ajp13 10.9.100.3:34009 10.9.100.3:34009 OK 1
8 166945 211 0 0 11 97
tomcat35 ajp13 10.9.100.3:35009 10.9.100.3:35009 Stopped
1 7 59878 86 0 0 4294967293 51
Troy Davidson wrote:
> We are doing load balancing with Apache and mod_jk. We have five
> instances of Tomcat running on three servers. Two Tomcat instances
> are fine. But, Three Tomcat instances show really high "Busy" numbers
> on the Status page. Here is what it looks like:
>
> Name Type Host Addr Stat F V Acc Err Wr
> Rd Busy Max RR Cd
> tomcat24 ajp13 10.9.100.2:24009 10.9.100.2:24009
> Stopped 1 6 59803 96 0 0 4294967294
> 48 tomcat14 ajp13 10.9.100.1:14009
> 10.9.100.1:14009 OK 1 9 166945 232 0 0 19
> 76 tomcat15 ajp13 10.9.100.1:15009
> 10.9.100.1:15009 Stopped 1 6 59812 99 0 0
> 4294967292 58 tomcat34 ajp13 10.9.100.3:34009
> 10.9.100.3:34009 OK 1 8 166945 211 0 0 11
> 97 tomcat35 ajp13 10.9.100.3:35009
> 10.9.100.3:35009 Stopped 1 7 59878 86 0 0
> 4294967293 51
> The number of Busy connections are over 4 billion?!?! I didn't think
> we were that popular. ;)
>
> The strange thing is that these numbers come and go with each refresh
> of the page. They will be there, hit refresh, and they are gone. Hit
> refresh again, and they are back. The numbers will only bounce
> between those three instances. The tomcat14 and tomcat34 won't see
> them, and work fine.
>
> We have had to stop those three since it was affecting the app. It
> seems session replication was affected. As soon as those three were
> stopped, things work fine.
> The configs of the five instances are identical except for ports
> obviously. Has anyone seen a similar behavior? Thanks.
>
--
++++++++++++++++++++++++++++++++++
Troy Davidson
Java Programmer
PC/Web Team
CMC/Flex
8520 South Sandy Parkway
Sandy, UT 84070
(801) 365-5000
www.cmcflex.com
---------------------------------------------------------------------
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