"CORE3107: Child process closed admin channel" in sun webserver 6.1

Hi,
Does anyone know of the following error in the Sun Java Webserver 6.1 logs:
===========================================
[08/Mar/2010:20:41:12] failure (27868): CORE3107: Child process closed admin channel
[08/Mar/2010:20:41:12] info (13932): HTTP3072: [LS ls1] http://172.21.159.184:80 ready to accept requests
[08/Mar/2010:20:41:12] failure (13932): HTTP3068: Error receiving request from 172.21.158.15 (Connection refused)
[08/Mar/2010:20:41:12] failure (13932): HTTP3068: Error receiving request from 172.21.158.14 (Connection refused)
[08/Mar/2010:20:41:12] failure (13932): HTTP3068: Error receiving request from 172.21.158.15 (Connection refused)
[08/Mar/2010:20:41:12] info (13932): CORE3274: successful server startup
[08/Mar/2010:20:41:12] failure (13932): HTTP3068: Error receiving request from 172.21.158.14 (Connection refused)
[08/Mar/2010:20:45:13] failure (27868): CORE3107: Child process closed admin channel
[08/Mar/2010:20:45:13] info (15075): HTTP3072: [LS ls1] http://172.21.159.184:80 ready to accept requests
[08/Mar/2010:20:45:13] failure (15075): HTTP3068: Error receiving request from 172.21.158.15 (Connection refused)
[08/Mar/2010:20:45:13] failure (15075): HTTP3068: Error receiving request from 172.21.158.14 (Connection refused)
[08/Mar/2010:20:45:13] info (15075): CORE3274: successful server startup
=============================================
We have Sun One Webservers 6.1 installed on Solaris 10 box and where we have installed Siebel Webserver Extension (SWSE) plugin for our siebel application server. Any pointers on how we can fix these crashes(child proc error) on webserver?
Appriciate your help.
Thanks,
Mahipal

Hello were there ever any updates to this post, I'm having basically the same issue and would be interested on an update.

Similar Messages

CORE3107: Child process closed admin channel

I Installed SUN ONE Web server 6.1 on a UNIX machine.
Installed 2 web applications.
1 of them works fine (has no Oblix logic), but the other gives me the error message "CORE3107: Child process closed admin channel" and terminates the application.
The point of failure occurs when I call Oblix to initialize.
I have the same web application on IPlanet version 6.0 and has no issues.
Pease help.

That message indicates that the child process terminated unexpectedly. Given your description, the problem is likely a crash in the Oblix plugin.
You may wish to check for core files.
(Note that "UNIX" is not enough information for us to suggest specific steps. Sun ONE Web Server 6.1 is supported on 3 different UNIX platforms, and each has a very different set of diagnostic tools.)

Urgent: Child process closed admin channel on Solaris 9 and 6.1 SP5

Hi
I'm facing this issue on Solaris 9 and Sun AppServer 6.1 SP5, the appserver crashes for some reason and restarts itself. There doesnt seem to be any specific instance which leads to this error. I notice that if I leave my application running for a while I end up seeing this error and I need to kill the instance that was running and restart the server instance.
This is what i see in the log files before the server restarts itself.
" failure (12181): CORE3107: Child process closed admin channel"
It seems like i'm not the only one seeing this issue:
http://swforums.sun.com/jive/thread.jspa?threadID=55040&messageID=210473
http://forum.sun.com/jive/thread.jspa?threadID=95718&messageID=328813
Anybody knows what could be going on?
Thanks

After the corefile is written, use pstack on it. In the pstack file you a stacktrace of the crashing function. Alas, this information is only useful when you have the sources.
Also, usually there are other, more specific lines in the errors logfile e.g.:
[27/Jan/2006:07:38:55] catastrophe (15456): CORE3260: Server crash detected (signal SIGSEGV)
[27/Jan/2006:07:38:55] info (15456): CORE3262: Crash occurred in function INTprepare_nsapi_thread from module /opt/SUNWwbsvr/bin/https/lib/libns-httpd40.so
[27/Jan/2006:07:38:55] failure (15455): CORE3107: Child process closed admin channel
If you post them, maybe somebody can give you a hint...

Child process dies, nfs locks not released, webserver hangs...

Hi,
I have Sun One 6.1 sp 11 on a solaris 10 ldom.
The server is configured to write logs access and error to /logs which is an NFS mount to a separate solaris 10 box. The logging to an NFS mount is a business requirement.
Sun JWS is configured to have two httpd processes and the watchdog to restart them if one should fail.
Every now and then, about once a day (it varies), one of the child processes will die with messages like this in the error log: (1949 is the wdog pid)
[09/Dec/2009:14:19:06] failure ( 1949): CORE3107: Child process closed admin channel
[09/Dec/2009:14:19:06] fine ( 1949): CORE3061: signal_handler_thread: received signal 18
[09/Dec/2009:14:19:06] fine ( 1949): CORE3049: Primordial process detected child 1950 died: status 37
[09/Dec/2009:14:19:06] fine ( 1949): CORE3050: Is our child, will spawn replacement
[09/Dec/2009:14:19:06] fine ( 1949): CORE3062: Unlinking of /tmp/https-wv2-819e4c2d/.cgistub_1950 returned -1
[09/Dec/2009:14:19:06] fine ( 1949): CORE3047: Server spawned worker process 2011
[09/Dec/2009:14:19:06] fine ( 2011): HTTP5169: User authentication cache entries expire in 120 seconds.
[09/Dec/2009:14:19:06] fine ( 2011): HTTP5170: User authentication cache holds 200 users
[09/Dec/2009:14:19:06] fine ( 2011): HTTP5171: Up to 4 groups are cached for each cached user.
[09/Dec/2009:14:19:06] fine ( 2011): HTTP4207: file cache module initialized (API versions 2 through 2)
[09/Dec/2009:14:19:06] fine ( 2011): HTTP4302: file cache has been initialized
[09/Dec/2009:14:19:06] fine ( 2011): HTTP3066: MaxKeepAliveConnections set to 256
[09/Dec/2009:14:19:06] fine ( 2011): Installed configuration 1
[09/Dec/2009:14:19:06] fine ( 2011): HTTP4193: flex-rotate-init: rotate start time is 0h, 0m
At this point the webserver will not respond. The processes (2*httpd, 1*wdog) are running but do not respond. The access log shows a weird lock with output from pfiles:
21: S_IFREG mode:0777 dev:340,10 ino:34988 uid:111 gid:102 size:0
O_RDWR|O_APPEND|O_CREAT|O_LARGEFILE FD_CLOEXEC
advisory write lock set by system 0x2 process 280
which I think means the new http process is waiting for the lock to be released, but the lock is never freed.
But what I'm really curious about is why the process is dying in the first place. Anyone seen "status 37" before, or know where I can look it up? I couln't google up any reference on what it might mean...
any help appreciated
cheers
Kristin.

I found the following in http://docs.sun.com/app/docs/doc/816-4555/rfsrefer-134?l=ja&a=view :
In this situation, the SIGLOST signal is posted to the process. The default action for the SIGLOST signal is to terminate the process.
For you to recover from this state, you must restart any applications that had files open at the time of the failure. Note that the following can occur.
- Some processes that did not reopen the file could receive I/O errors.
- Other processes that did reopen the file, or performed the open operation after the recovery failure, are able to access the file without any problems.
Thus, some processes can access a particular file while other processes cannot.
Edited by: Arvind_Srinivasan on Dec 10, 2009 12:33 AM

Child process admin thread is shutting down.

Hi,
Operating on a web server with the following error message, Child Process is a phenomenon that restart.
I would like to know what the cause.
Version - Sun Java System Web Server 6.1
errors
[09/Nov/2011:12:31:00] catastrophe ( 7647): Server crash detected (signal SIGBUS)
[09/Nov/2011:12:31:00] info ( 7647): Crash occurred in NSAPI SAF flex-log
[09/Nov/2011:12:31:00] info ( 7647): Crash occurred in function flex_init from module /netscape/servers/bin/https/lib/libns-httpd40.so
[09/Nov/2011:12:31:00] failure (16223): Child process admin thread is shutting down
[09/Nov/2011:13:42:06] catastrophe (16514): Server crash detected (signal SIGSEGV)
[09/Nov/2011:13:42:06] info (16514): Crash occurred in NSAPI SAF flex-log
[09/Nov/2011:13:42:06] info (16514): Crash occurred in function flex_init from module /netscape/servers/bin/https/lib/libns-httpd40.so
[09/Nov/2011:13:42:06] failure (16223): Child process admin thread is shutting down
Edited by: 896618 on 2011. 11. 10 오후 9:21

thanks for the response chris. in answer to your questions - no there are no NSAPI plugins installed and we are getting zero helpful output from the log files.
/server-root/logs/errors is the only log file that has relevant output at the time of the crashes. our own application logs and the sytem's syslogs have nothing relevant at those times.
the o/p from the errors log is basically :
[19/Dec/2002:02:05:39] config ( 5815): [GC
[19/Dec/2002:02:05:39] config ( 5815): 154915K->129640K(249216K)
[19/Dec/2002:02:05:39] config ( 5815): , 0.0299277 secs]
[19/Dec/2002:02:05:39] config ( 5815):
[19/Dec/2002:02:05:59] failure ( 5814): Child process admin thread is shutting down
at which point it resets itself. we have a load balanced system and the resets aren't noticed at the front end but i'm beginning to tear my hair out.
We have the exact same s/w configuration on 2 x Netra T1s and they've been running fine for over a year. We have 2 brand spanking new Fire V100s & the only significant h/w difference between the machines being L2 cache (512k v 2Mb). i would've thought that a bottleneck would throw up errors all over the place and result in a noticeably slower system which isn't the case.
our next step is to throw in an extra 512Mb RAM and see does that increase the time between resets - currently 24-36hrs. i have a niggling suspicion it may be memory related.
any other ideas?

TCP connection closed but a child process of SQL Server may be holding a duplicate of the connection's socket in SQL2008R2

Hello,
I do get the below SQL error in production environment intermittently:
TCP connection closed but a child process of SQL Server may be holding a duplicate of the connection's socket. Consider enabling the TcpAbortiveClose SQL Server registry setting and restarting SQL Server. If the problem persists, contact Technical
Support.
According to the post I search in MSDN, the above error is fixed in SQL2008R-CU6, but I have SQL2008R2-SP02 CU09 patch in production environment and the above error still occurred intermittently. I am running SQL2008R2 SP02 CU09 patch with Windows 2008R2-SP01.
I would like to know if anyone has the same error happened to their SQL environment after applied SQL2008R2-SP02 CU06 patch and later.
Any suggestion would be helpful.
Best regards,
PL.

Hello,
What happen if you apply the changes on the registry explained on the workaround section of the following article?
http://support.microsoft.com/kb/2491214
Hope this helps.
Regards,
Alberto Morillo
SQLCoffee.com

Anyone know how to keep a child Process from closing when the main Applicaiton is closed

I have a Web based application that needs to use an older version of Java to run it properly . I have been able to sequence this and use a shortcut to call on Iexplorer.exe to open the browser in bubble and have the old version of Java run in the
same bubble. This part is working as needed but the issue I have ran into is when a end user opens up a word document from a link and "check's it out" to modify it and closes the browser it immediately closes the word document along
with it. So the Question I have, Is there a way to keep a child process open when the main Application is closed . Anyone run into anything similar or any documentation on a way to keep the process alive until the end user closes it?

Hi There,
I don't believe there is a way to handle this currently within App-V...Other virtualization products do have the ability to exclude processes and force to run outside or the bubble or exclude them from terminating on shutdown.
It would be a great feature request for a future release. You can easily request it here:
http://appv.uservoice.com/forums/280448-microsoft-application-virtualization
PLEASE MARK ANY ANSWERS TO HELP OTHERS Blog:
rorymon.com Twitter: @Rorymon

Coldfusion 10 Enterprise with Tomcat + mod_jk and Apache2 experiencing child process hangups

I am experiencing the most bizarre thing that so far I am unable to reproduce with my own visits to the site.
After restarting Apache2 my cacti graphs show that the child processes increment consistently over the course of a day without dropping back down during off hours. This behavior eventually leaves the website inaccessible...
Looking at server-status it is filled with Ws (Sending Reply) and GET calls to my cfm applications :
Current Time: Tuesday, 22-Jul-2014 16:33:00 PDTRestart Time: Monday, 21-Jul-2014 22:51:12 PDTParent Server Generation: 0Server uptime: 17 hours 41 minutes 48 secondsTotal accesses: 194844 - Total Traffic: 3.8 GBCPU Usage: u201.55 s34.46 cu0 cs0 - .37% CPU load3.06 requests/sec - 63.2 kB/second - 20.6 kB/request73 requests currently being processed, 4 idle workers
WWWWWWWWWWWWWWWWWWWWWWWWWKWWWWWWWWWWWWWWWWWCWWWWW_WWWWWWCWWW_WWW _WKW...KWW.W_KWW....W........................................... ................................................................ ................................................................
Scoreboard Key:
"_" Waiting for Connection, "S" Starting up, "R" Reading Request,
"W" Sending Reply, "K" Keepalive (read), "D" DNS Lookup,
"C" Closing connection, "L" Logging, "G" Gracefully finishing,
"I" Idle cleanup of worker, "." Open slot with no current process
Srv
PID
Acc
M
CPU
SS
Req
Conn
Child
Slot
Client
VHost
Request
0-0
15074
0/46/1370
W
7.39
46158
0
0.0
0.44
23.89
192.168.1.10
www.mysite.edu
GET /directory/?directory=department&deptexp=7000 HTTP/1.1
1-0
11563
0/47/468
W
2.75
58867
0
0.0
4.69
13.64
192.168.1.10
www.mysite.edu
GET /catalog/index.cfm?courselist=list&dept=&searchc=PEHW%20148
2-0
12906
0/65/884
W
7.30
54536
0
0.0
0.80
14.62
192.168.1.10
www.mysite.edu
GET /athletics/resources/nwaacc-athlete-of-the-week/ HTTP/1.1
3-0
13840
0/41/1085
W
4.01
51162
0
0.0
0.56
20.57
192.168.1.10
www.mysite.edu
GET /directory/?directory=department&deptexp=17001 HTTP/1.1
4-0
15928
0/20/1635
W
5.40
43715
0
0.0
0.06
41.37
192.168.1.10
www.mysite.edu
GET /directory/?directory=department&deptexp=37000 HTTP/1.1
5-0
18774
0/19/2387
W
0.33
34564
0
0.0
0.24
52.70
192.168.1.10
www.mysite.edu
GET /directory/?directory=department&deptexp=19009 HTTP/1.1
6-0
4321
0/36/6612
W
3.61
13200
0
0.0
0.28
129.74
192.168.1.10
www.mysite.edu
GET /directory/index.cfm?directory=department&deptexp=28011 HTT
7-0
13077
0/0/808
W
0.42
54383
0
0.0
0.00
24.81
192.168.1.10
www.mysite.edu
GET /directory/index.cfm?directory=department&deptexp=6005 HTTP
8-0
16488
0/118/1673
W
12.39
40692
0
0.0
1.30
35.44
192.168.1.10
www.mysite.edu
GET /directory/?directory=department&deptexp=31003 HTTP/1.1
9-0
10726
0/15/110
W
0.58
61963
0
0.0
0.05
1.83
192.168.1.10
www.mysite.edu
GET /directory/index.cfm?directory=All&index=Q HTTP/1.1
10-0
13154
0/1/688
W
0.00
54165
0
0.0
0.00
16.83
192.168.1.10
www.mysite.edu
GET /directory/?directory=All&firstname=Patrick&lastname=Murphy
11-0
12590
0/25/516
W
4.45
55851
0
0.0
0.76
11.19
192.168.1.10
www.mysite.edu
GET /directory/?directory=department&deptexp=4000 HTTP/1.1
12-0
12551
0/13/454
W
1.84
56055
0
0.0
0.38
10.00
192.168.1.10
www.mysite.edu
GET /directory/index.cfm?directory=department&deptexp=20001 HTT
13-0
13333
0/23/626
W
3.86
53189
0
0.0
0.57
11.66
192.168.1.10
www.mysite.edu
GET /directory/?directory=department&deptexp=31005 HTTP/1.1
14-0
12410
0/13/387
W
2.70
56484
0
0.0
0.42
10.55
192.168.1.10
www.mysite.edu
GET /directory/?directory=department&deptexp=6003 HTTP/1.1
15-0
13162
0/70/389
W
10.81
53114
0
0.0
0.86
5.60
192.168.1.10
www.mysite.edu
GET /directory/?directory=department&deptexp=6005 HTTP/1.1
16-0
12309
0/22/275
W
2.23
56878
0
0.0
0.43
3.91
192.168.1.10
www.mysite.edu
GET /directory/?directory=department&deptexp=20005 HTTP/1.1
17-0
13163
0/57/341
W
11.85
53120
0
0.0
1.38
6.49
192.168.1.10
www.mysite.edu
GET /catalog/index.cfm?courselist=list&dept=&searchc=ENGR%26%20
I have straced a hung process to only find the following :
strace -p 6472
Process 6472 attached - interrupt to quit
read(23,
Another interesting bit of info, none of these GET requests make it into my access.log file which I find very peculiar as well.
Here are my CF Specs
Server Details
Server Product ColdFusion
Version 10,0,13,287689
Tomcat Version 7.0.23.0
Edition Enterprise
Serial Number
Operating System UNIX
OS Version 3.2.0-65-generic
Update Level /opt/coldfusion10/cfusion/lib/updates/chf10000013.jar
Adobe Driver Version 4.1 (Build 0001)
JVM Details
Java Version 1.6.0_29
Java Vendor Sun Microsystems Inc.
Here are my Apache2 Specs
Server version: Apache/2.2.22 (Ubuntu)
Server built:   Apr 17 2014 21:49:25
Server's Module Magic Number: 20051115:30
Server loaded: APR 1.4.6, APR-Util 1.3.12
Compiled using: APR 1.4.6, APR-Util 1.3.12
Architecture:   64-bit
Server MPM:     Prefork
threaded:     no
    forked:     yes (variable process count)
Server compiled with....
-D APACHE_MPM_DIR="server/mpm/prefork"
-D APR_HAS_SENDFILE
-D APR_HAS_MMAP
-D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
-D APR_USE_SYSVSEM_SERIALIZE
-D APR_USE_PTHREAD_SERIALIZE
-D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
-D APR_HAS_OTHER_CHILD
-D AP_HAVE_RELIABLE_PIPED_LOGS
-D DYNAMIC_MODULE_LIMIT=128
-D HTTPD_ROOT="/etc/apache2"
-D SUEXEC_BIN="/usr/lib/apache2/suexec"
-D DEFAULT_PIDLOG="/var/run/apache2.pid"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_LOCKFILE="/var/run/apache2/accept.lock"
-D DEFAULT_ERRORLOG="logs/error_log"
-D AP_TYPES_CONFIG_FILE="mime.types"
-D SERVER_CONFIG_FILE="apache2.conf"
I am hoping this is no normal behavior for Coldfusion 10.
Many thanks in advance.

We're having the same problem, although with CF11.

Apache POST flex2gateway never closes or times out, reaches max child processes

We have been trying to pass an external PCI scan, and noticed some server lockups after starting a scan. We are scanning a couple hundred IP addresses, which all resolve to the same servers. The scans are actively looking for vulnerabilities on the box, and one of which is flash remoting. When we look at the apache /server-status page, it shows a ton of long running flex2gateway processes. For instance:
22-4
4466
0/3817/3817
W
4.07
163840
0
0.0
57.76
57.76
x.x.x.101
WebNode2.ambassador.int
POST /flex2gateway/http HTTP/1.1
As you can see, this POST request has been running for 163840 seconds, or nearly two days. Since it seems these POST requests never complete, even though the client has long since disconnected, they simply stack up until the server's max number of child processes has been reached, effectively killing our webserver.
When I try to restart the clustered coldfusion instances one at a time, these POST requests do not die off.
If I stop both clustered CF instances, the requests complete (or get killed).
If I reload or restart apache, the requests are gone as well.
strace gives me nothing useful:
[root@WebNode1 ~]# strace -p 34025
Process 34025 attached - interrupt to quit
read(185,
pstack gives a little more, but nothing that looks obvious to me:
[root@WebNode1 ~]# pstack -p 34025
Usage: pstack <process-id>
[root@WebNode1 ~]# pstack 34025
#0 0x00007fdd40444740 in __read_nocancel () from /lib64/libpthread.so.0
#1 0x00007fdd33efe2e6 in jk_tcp_socket_recvfull () from /opt/coldfusion10/config/wsconfig/1/mod_jk.so
#2 0x00007fdd33f1b68d in ajp_connection_tcp_get_message () from /opt/coldfusion10/config/wsconfig/1/mod_jk.so
#3 0x00007fdd33f1ceea in ajp_get_reply () from /opt/coldfusion10/config/wsconfig/1/mod_jk.so
#4 0x00007fdd33f20308 in ajp_service () from /opt/coldfusion10/config/wsconfig/1/mod_jk.so
#5 0x00007fdd33ef8f5d in jk_handler () from /opt/coldfusion10/config/wsconfig/1/mod_jk.so
#6 0x00007fdd41b92cd0 in ap_run_handler ()
#7 0x00007fdd41b9658e in ap_invoke_handler ()
#8 0x00007fdd41ba1c50 in ap_process_request ()
#9 0x00007fdd41b9eac8 in ?? ()
#10 0x00007fdd41b9a7d8 in ap_run_process_connection ()
#11 0x00007fdd41ba6ad7 in ?? ()
#12 0x00007fdd41ba6dea in ?? ()
#13 0x00007fdd41ba7a6c in ap_mpm_run ()
#14 0x00007fdd41b7e9b0 in main ()
I dont know what that tells us exactly, but I'm leaning toward the hangup between apache and tomcat.
Any suggestions on where how to troubleshoot this issue?

On a test server, I have removed the wildcard from the uriworkermap.properties file, so it now only matches "/flex2gateway" and "/flex2gateway/". Unfortunately I'm still seeing the occasional hung apache worker.
Anyone have any leads on this issue? I don't mind doing the research, I'v just exhausted the limits of my Google Fu.
Apache Server Status for 10.10.10.205
Server Version: Apache/2.2.15 (Unix) DAV/2 PHP/5.3.3 mod_ssl/2.2.15 OpenSSL/1.0.1e-fips mod_wsgi/3.2 Python/2.6.6 mod_jk/1.2.32 mod_perl/2.0.4 Perl/v5.10.1
Server Built: Oct 16 2014 14:48:21
Current Time: Monday, 10-Nov-2014 16:49:22 EST
Restart Time: Monday, 10-Nov-2014 15:25:16 EST
Parent Server Generation: 0
Server uptime: 1 hour 24 minutes 6 seconds
Total accesses: 5313 - Total Traffic: 98.4 MB
CPU Usage: u3.97 s1.26 cu0 cs0 - .104% CPU load
1.05 requests/sec - 20.0 kB/second - 19.0 kB/request
15 requests currently being processed, 11 idle workers
WWWWWWW_W_W_W__W__W__WW_W_...................................... ................................................................ ................................................................ ................................................................
Scoreboard Key:
"_" Waiting for Connection, "S" Starting up, "R" Reading Request,
"W" Sending Reply, "K" Keepalive (read), "D" DNS Lookup,
"C" Closing connection, "L" Logging, "G" Gracefully finishing,
"I" Idle cleanup of worker, "." Open slot with no current process
Srv
PID
Acc
M
CPU
SS
Req
Conn
Child
Slot
Client
VHost
Request
0-0
8727
0/12/12
W
0.03
4572
0
0.0
0.05
0.05
10.10.2.201
qc.company.int
POST /flex2gateway HTTP/1.1
1-0
8728
0/11/11
W
0.03
4358
0
0.0
0.18
0.18
10.10.2.201
qc.company.int
POST /flex2gateway HTTP/1.1
2-0
8729
0/38/38
W
0.04
3910
0
0.0
1.11
1.11
10.10.2.201
qc.company.int
POST /flex2gateway HTTP/1.1
3-0
8730
0/27/27
W
0.03
4064
0
0.0
0.79
0.79
10.10.2.201
qc.company.int
POST /flex2gateway HTTP/1.1
4-0
8731
0/16/16
W
0.03
4354
0
0.0
0.12
0.12
10.10.2.201
qc.company.int
POST /flex2gateway HTTP/1.1
5-0
8732
0/7/7
W
0.02
4564
0
0.0
0.02
0.02
10.10.2.201
qc.company.int
POST /flex2gateway HTTP/1.1
6-0
8733
0/8/8
W
0.02
4673
0
0.0
0.01
0.01
10.10.2.201
qc.company.int
POST /flex2gateway HTTP/1.1
7-0
8734
0/386/386
0.37
4
0
0.0
6.49
6.49
10.10.2.212
www.company.qc
GET /marketingpages/images/login_over.jpg HTTP/1.1
8-0
9422
0/10/10
W
0.02
4564
0
0.0
0.04
0.04
10.10.2.201
qc.company.int
POST /flex2gateway HTTP/1.1
9-0
10112
0/393/393
0.37
6
0
0.0
14.59
14.59
10.10.2.212
www.company.qc
GET /marketingpages/images/box_onesource.jpg HTTP/1.1
10-0
10468
0/321/321
W
0.32
846
0
0.0
4.42
4.42
10.10.2.212
qc.company.int
POST /flex2gateway HTTP/1.1
11-0
10470
0/398/398
0.38
6
0
0.0
12.80
12.80
10.10.2.212
www.company.qc
GET /marketingpages/images/home_eco.jpg HTTP/1.1
12-0
10471
0/340/340
W
0.32
837
0
0.0
4.99
4.99
10.10.2.212
qc.company.int
POST /flex2gateway/ HTTP/1.1
13-0
10544
0/404/404
0.34
6
0
0.0
5.21
5.21
10.10.2.212
www.company.qc
GET /marketingpages/images/box_top.jpg HTTP/1.1
14-0
10592
0/353/353
0.40
6
12
0.0
14.10
14.10
10.10.2.212
www.company.qc
GET /?login HTTP/1.1
15-0
10648
0/296/296
W
0.31
800
0
0.0
3.82
3.82
10.10.2.212
qc.company.int
POST /flex2gateway/ HTTP/1.1
16-0
12382
0/339/339
0.33
6
0
0.0
2.85
2.85
10.10.2.212
www.company.qc
GET /marketingpages/images/logo_sourceone.jpg HTTP/1.1
17-0
12387
0/336/336
0.34
6
0
0.0
5.06
5.06
10.10.2.212
www.company.qc
GET /marketingpages/images/logo_onesource.jpg HTTP/1.1
18-0
12388
0/265/265
W
0.25
839
0
0.0
2.87
2.87
10.10.2.212
qc.company.int
POST /flex2gateway/ HTTP/1.1
19-0
12389
0/323/323
0.31
0
0
0.0
4.82
4.82
10.10.2.212
www.company.qc
GET /marketingpages/lib/dimming.js HTTP/1.1
20-0
12390
0/336/336
0.31
4
0
0.0
5.24
5.24
10.10.2.212
www.company.qc
GET /marketingpages/lib/superfish.js HTTP/1.1
21-0
12391
0/289/289
W
0.27
805
0
0.0
2.49
2.49
10.10.2.212
qc.company.int
POST /flex2gateway/ HTTP/1.1
22-0
12392
0/281/281
W
0.27
831
0
0.0
3.17
3.17
10.10.2.212
qc.company.int
POST /flex2gateway HTTP/1.1
23-0
14750
0/41/41
0.04
6
0
0.0
0.92
0.92
10.10.2.212
www.company.qc
GET /marketingpages/images/close.jpg HTTP/1.1
24-0
14751
0/43/43
W
0.04
0
0
0.0
1.21
1.21
10.10.2.36
qc.company.int
GET /server-status HTTP/1.1
25-0
14752
0/40/40
0.04
6
0
0.0
0.96
0.96
10.10.2.212
www.company.qc
GET /marketingpages/images/box_sourceone.jpg HTTP/1.1

Killing child process, not just the shell

Killing child process, not just the shell
#241 - 07/11/03 11:30 AM
Edit post Edit Reply to this post Reply Reply to this post Quote
Hi,
I am working on a system for automatically testing student submissions on an introductory course about unix scripting. The program works by running a test script on a student submission, using Runtime.getRuntime().exec(). The Process object has a limited life span of 10 seconds (by default), and if it is still running after these 10 seconds, Process.destroy() is used to kill it.
A bug exists when one of the submissions being tested times out. When the destroy() method is used it leaves a child process running... since students can also run
some tests from the file submission client, the number of hanging processes soon adds up as they test and test again to get it right before submission. Eventually this results in too many processes and the server keels over.
Does anyone have any ideas on killing these hanging processes?

Not much help, but I think this is a known bug ...
http://developer.java.sun.com/developer/bugParade/bugs/4770092.html

SunMC - Process is forking and reaping child processes. What's that?

Hey folks,
Im really new to the sysadmin world, and I think maybe my company really didn't think things well when they've decided to put me doing this, hehehe.
I work with a general queue for which my team receives tickets with different kind of problems, among them, Automation Alerts (I think you all know what Im talking about).
Recently (maybe 2-4 days) we've started to receive an Automation Ticket with the following message:
Solaris Process Monitoring Process Monitoring Base03 CPU
time for reaped children 107.1 30.0 Process is forking and
reaping child processes.
I've found almost nothing about this, and even when I think what's this ticket about (I've closed 2 or 3 of them stating no issues were found), I really want to understand and know where to look and if something can be done about this, because processes on the server and general state of it seems in good condition and nothing looks bad, apparently. The server is a Solaris 10 with zones.
Can you shed some light on this? I'd appreciate all the help you can give me.
Thank you and regards all.

The same thought occurred to me, except I started seeing "failure" logs in JAMF the morning after we run maintenance policies. All of these failures were due to the Mac not restarting, which isn't really a failure - more of an inconvenience - since the second part of the policy (removing eTrust antivirus and restarting is part 1, installing SEP 12.1 and restarting is part 2) runs immediately on restart no matter what time of the day it is.
In some cases the macs did not restart because the user had unsaved work or something else that would cancel logout. In this case, Casper prompts the user to restart and waits until the OK button is clicked, then counts down 1 minute and restarts. In the other case, nothing would have prevented logout yet the computer still did not logout and then restart, leading me to believe that the reason the Mac did not log out was a locked desktop, and since I am telling System Events to simulate a gui log out, this would be blocked by a locked desktop.
The problem basically stems from the following two issues: 1. I am not to force a logout or restart when a console user is logged in and 2. Casper will not automatically log a console user out on it's own OR restart the computer if a console user is logged in - and then I have to rely on the end user to follow on screen instructions since the Casper restart prompt can be moved to the side and effectively ignored.
When no restarts are required for the various policies we run, this is not an issue. And anyway, I originally just wanted to know what process is running when a desktop is asleep and locked, but no screen saver is active...

URGENT.... Shutting down child processes

Hi,
My application is running under windows. Its a core-java application.
When I start the application it starts in a DOS window.
My program in the normal execution starts 3 child processes. A, B and C. I also have added a shutdown hook to the main program, where I destroy these processes when on the main program, someone presses
CTRL + C, but how to track if some lame user closes the DOS window. In this case the shutdown hook doesnt get invoked...
Help me out pls. I am unable to destroy the child processes when user closes the DOS window.
Thanks guys

Thanks Owen.
I went through this thread, but they are only talking about CTRL + C and not about closing the DOS window itself. When user closes the DOS window itself, there is no control coming in the program.
Is there a way to handle this ?

JVM spawning mysterious child process of itself using Runtime.exec()

Hello, I'm not sure if this is how this is supposed to work but I have a java application that monitors legacy c programs and after a period of time (its intermittent), I'll see a duplicate jvm process running the same classpath, classname as a child of the java application monitor. This behaviour can be reproduced with the following simple class running on either solaris 9 or 10 using 1.6.0_03-b05:
public class Monitor {
Process procss;
public Monitor() {
try {
Runtime runtime = Runtime.getRuntime();
for (int i = 0; i < 10000; i++) {
System.out.println("execing command ls -l.");
procss = runtime.exec("ls -l");
procss.waitFor();
catch (Exception e) {
e.printStackTrace();
public static void main(String[] args) {
new Monitor();
Using java -classpath ./ Monitor to run it. While this is running, at intermittent times doing a ps -ef you will see a duplicate jvm running whose parent process is the one that was started on the command line. Ie:
UID PID PPID etc
user 17434 10706 .... java -classpath ./ Monitor (the one I put running)
user 27771 17434 .....java -classpath ./ Monitor (intermittently started)
in another window I'll run the following shell script that will output the processes when a duplicate java process gets started as they don't seem to run very long (on my production system they will occasionally get hung up until I manually kill them):
#!/usr/bin/ksh
while ((1 == 1))
do
ps -ef | grep "Monitor" | grep -v grep > /tmp/test.out
VAL=`cat /tmp/test.out | wc -l`
if (($VAL != 1))
then
echo "Duplicate java process started"
cat /tmp/test.out
fi
done
It takes roughly 30 seconds before I start to see duplicate jvms starting to run. The concern is that is the new jvm instance running the Monitor class? Eventually on my production system the real application will have a child or 2 linger indefinetly, and threads will be deadlocked. Once I kill these child java processes, everything is back to normal. This doesn't seem to occur with the above java class but will show the duplicate child jvm's start to run after a bit.

This is true for Solaris and Linux. Sun's implementation does a fork. A lot of people who have very large memory java applications wish there was a way to create a process from Java that doesn't involve copying the parent process. As far as I know your stuck.
A workaround: Use jms, rmi, sockets, or files to communicate with a low memory footprint java application whose sole purpose is to spawn child processes.

"No Child Processes" Error

When I am downloading certain files from the internet, the files are not mounting, and I am getting a "No child Processes" Error. I have run the apple repair disc over the computer, however, the problems is still happening. Can anybody help to me fix this problem???? Thanks

Hi-
Welcome to Discussions!
Is it possible to download what you want from a different server? The error could well be the result of file problems on the other end.
To further insure that it isn't your system, run a full set of maintenance scripts, and clear logs, caches, and other temporaries.
A last item to "clear" your machine, would be a restart be fore trying to download.
Should these proceedures fail to fix the problem, I would consider the problem to be with those "certain files".

Why can not I see the name of a child process?

Hi,
I implemented a program for my project.
My program has two processes. One is a parent process. Another is a child process.
The parent process forks its child process. The child process is executed by execl() system call.
The program code implemented is followed.
=== abbreviation ===
switch(itmr_forkid = fork()) {
case 0:
RCode = execl("./itmr", "itmr", (char *) 0);
exit(0);
break;
=== abbreviation ===
I executed the program. And then I pressed "ps -ef" on command line.
[stp1ggsn1][user/shlim] ps -ef
UID PID PPID C STIME TTY TIME CMD
root 29402 29376 38 Mar 06 pts/0 11376:36 ibgfb
root 29403 29402 0 Mar 06 pts/0 0:15
However, why can not I see itmr process name for the child process?
When I executed the program for the parent process and the program for the child process respectively, I can see itmr process name for the child process.
I tried to look for the cause. But I could not find out the answer.
Please, give me your answer. Thank you for your answer in advance.

Hi,
I am sorry that I loaded my question two times by mistake.

"CORE3107: Child process closed admin channel" in sun webserver 6.1

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