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<div class=Section1>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hi Michel,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Do you know how many new connections are being made to DB server
every minute/second?<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>netstat -n > n1<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>sleep 10<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>netstat -n > n2<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>wc n1 n2<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>diff n1 n2 <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Under windows, I have recorded an occasional iign.exe crash on
several Windows servers. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>ingstart –iigcn fixes the problem (but don’t log out that windows
session hey)<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>My theory is that a badly behaved .Net application is making and
dropping connections about 50 times per second over a short period.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>It leaves 1,000s of TIME_WAIT connections standing for about a
minute.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Paul<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> info-ingres-bounces@lists.planetingres.org
[mailto:info-ingres-bounces@lists.planetingres.org] <b>On Behalf Of </b>Michel
Forget<br>
<b>Sent:</b> Saturday, 28 October 2017 1:57 PM<br>
<b>To:</b> info-ingres@lists.planetingres.org<br>
<b>Subject:</b> [Info-ingres] Ingres 9.0.4 nameserver freezing (but the rest of
Ingres is fine, and restarting the nameserver manually recovers operation)...<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Hi,<br>
<br>
I was referred to this mailing-list in hopes of finding a solution for a
problem that has been vexing me.<br>
<br>
I have an Ingres 9.0.4 (community edition, 64-bit) installation that is
experiencing a strange "freeze". The symptom observed by the
users is that existing connections to the DBMS are just fine, but no new
connections to the DBMS can be established (either from elsewhere on the
network through Ingres/NET, or even locally).<br>
<br>
After some trial-and-error, and some diagnostic help from Actian, we've
determined that the problem isn't actually the DBMS itself. If we kill -9
the iigcn process, then do instart -iigcn then all returns to normal. The
funny thing is that there is no information in the errlog.log file that
indicates a problem at all. <br>
<br>
Using this approach, we've been able to avoid downtime (to keep the users
happy) but we aren't really closer to a solut! ion. I -could- write a
script that runs once a minute, checks if it can establish a connection to the
DBMS, then stops/starts the iigcn process if it can't but I'm hoping to reach
an actual solution to the problem so that such a thing isn't necessary.<br>
<br>
The operating system that Ingres is installed on (which is running as a virtual
machine in the Azure cloud) is:<br>
<br>
CentOS Linux release 7.3.1611 (Core)<br>
<br>
The configuration of the nameserver is currently the default configuration,
except that session_limit is set to 64 instead of 16. While this virtual
machine running in the Azure cloud is new, the configuration of Ingres was
migrated from an older system. I believe this problem happened once or
twice over a two year period on the old system, but it was never happening
every day like this is. I can't see session_limit being a problem, but
just the same I've reverted it back to 16. My nameserver configuration is
below:<o:p></o:p></p>
<div>
<p class=MsoNormal><span style='font-size:11.0pt'>Name Server Parameters:</span><o:p></o:p></p>
</div>
<div>
<div>
<p class=MsoNormal>Name
│Value │Units<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>check_interval │300
│seconds<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>check_timeout │20
│seconds<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>check_type
│connect,install,clas│string<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>compress_point │50
│integer<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>default_server_class│INGRES
│string <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>expire_interval │300
│seconds<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>local_vnode │REDACTED
|<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>mechanisms │
│mechanism list<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>registry_type │none
│installation type<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>remote_mechanism │none
│none, default, mechanism name<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>remote_vnode │
│virtual node<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>session_limit │16
│sessions<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>ticket_cache_size │10
│tickets<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>ticket_expire │1800
│seconds<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>timeout
│60
│seconds<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><br>
In terms of the operating system itself, the /etc/sysctl.conf file consists of
only one entry:<br>
<br>
kernel.shmmax = 300000000<br>
<br>
The Actian representative I spoke with had me gather some information (of which
#3 looks interesting diagnostically speaking):<br>
<br>
1) the output of pstack against the iigcn process:<o:p></o:p></p>
<div>
<p class=MsoNormal>#0 0x00007f3d74461de0 in __poll_nocancel () from
/lib64/libc.so.6<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>#1 0x000000000043d093 in ii_CL_poll_poll ()<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>#2 0x000000000043c692 in iiCLpoll ()<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>#3 0x000000000043810a in GCexec ()<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>#4 0x000000000040ec21 in main ()<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><br>
2) the output of lsof -p agaisnt the iigcn process:<o:p></o:p></p>
<div>
<p class=MsoNormal>COMMAND PID USER
FD TYPE DEVICE SIZE/OFF NODE
NAME<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres cwd
DIR 8,1 4096 100760268 /home/ingres<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres rtd
DIR 8,1 4096
128 /<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres txt
REG 8,1 601827 101588538
/opt/Ingres/IngresII/ingres/bin/iigcn<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres mem
REG 8,1 62184 101735988
/usr/lib64/libnss_files-2.17.so<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres mem
REG 8,1 11384 100664811
/usr/lib64/libfreebl3.so<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres mem
REG 8,1 88720 100760266
/usr/lib64/libgcc_s-4.8.5-20150702.so.1<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres mem
REG 8,1 19776 101735975
/usr/lib64/libdl-2.17.so<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres mem
REG 8,1 41080 100760262
/usr/lib64/libcrypt-2.17.so<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres mem
REG 8,1 2118128 100760258 /usr/lib64/libc-2.17.so<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres mem
REG 8,1 1141928 101735977 /usr/lib64/libm-2.17.so<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres mem REG
8,1 143944 101812385 /usr/lib64/libpthread-2.17.so<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres mem
REG 8,1 155464 100749243 /usr/lib64/ld-2.17.so<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 0u
CHR 1,3 0t0
1028 /dev/null<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 1w
CHR 1,3 0t0
1028 /dev/null<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 2w
CHR 1,3 0t0
1028 /dev/null<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 3u IPv4
58898831 0t0 TCP *:36750 (LISTEN)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 4r
REG 8,1 2121728 33702776 /opt/Ingres/IngresII/ingres/files/english/slow_v4.mnx<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 5w
REG 8,1 70345162 69239389
/opt/Ingres/IngresII/ingres/files/errlog.log<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 6u IPv4
58973717 0t0 TCP
localhost:55778->localhost:34546 (ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 7u IPv4
58975824 0t0 TCP
localhost:57130->localhost:34546 (ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 8u IPv4
58981059 0t0 TCP
localhost:58514->localhost:34546 (ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 9u IPv4
58987208 0t0 TCP
localhost:59902->localhost:34546 (ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 10u IPv4
58992237 0t0 TCP
localhost:33066->localhost:34546 (ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 11u IPv4
58997496 0t0 TCP
localhost:34474->localhost:34546 (ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 12u IPv4
59006999 0t0 TCP
localhost:35826->localhost:34546 (ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 13u IPv4
59009214 0t0 TCP
localhost:37182->localhost:34546 (ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 14u IPv4
59013545 0t0 TCP
localhost:38628->localhost:34546 (ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 15u IPv4
59017155 0t0 TCP
localhost:40132->localhost:34546 (ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 16u IPv4
59023532 0t0 TCP
localhost:41520->localhost:34546 (ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 17u IPv4
59022321 0t0 TCP
localhost:42880->localhost:34546 (ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 18u IPv4
59035815 0t0 TCP
localhost:44406->localhost:34546 (ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 19u IPv4
59037451 0t0 TCP
localhost:45748->localhost:34546 (ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 20u IPv4
59044416 0t0 TCP
localhost:47218->localhost:34546 (ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 21u IPv4
60055611 0t0 TCP
localhost:48546->localhost:34546 (ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 22u IPv4
60059812 0t0 TCP
localhost:49844->localhost:34546 (ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 23u IPv4
60059483 0t0 TCP localhost:51224->localhost:34546
(ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 24u IPv4
60071073 0t0 TCP
localhost:52632->localhost:34546 (ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>iigcn 18868 ingres 25u IPv4
61921071 0t0 TCP
localhost:36750->localhost:43066 (ESTABLISHED)<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><br>
3) the output of netstat | grep <gcn port> (which was 36750 at the time)<o:p></o:p></p>
<div>
<p class=MsoNormal>tcp 0 0
localhost:36750 localhost:45424
SYN_RECV<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:36750 localhost:45488
SYN_RECV<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0 localhost:36750
localhost:45354
SYN_RECV<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:36750 localhost:45450
SYN_RECV<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:36750 localhost:45264
SYN_RECV<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:36750 localhost:45278
SYN_RECV<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:36750 localhost:45262
SYN_RECV<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:36750 localhost:45408
SYN_RECV<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:36750 localhost:45390
SYN_RECV<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:36750 localhost:45338
SYN_RECV<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:36750 localhost:45356
SYN_RECV<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:36750 localhost:45410
SYN_RECV<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:36750 localhost:45352
SYN_RECV<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43128 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 309
localhost:45424 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43614 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 258 0
localhost:36750 localhost:43128
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43066 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 309
localhost:45450 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43542 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 309
localhost:45262 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 258 0
localhost:36750 localhost:43614
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43492 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 309 0
localhost:36750 localhost:43764
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 309 0
localhost:36750 localhost:43726
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 309
localhost:45236 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43724 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43126 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43366 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 345 0
localhost:36750 localhost:43370
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 309
localhost:45488 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 358
localhost:45108 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 258
localhost:45352 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 309
localhost:45222 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 258 0
localhost:36750 localhost:43368
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 358 0
localhost:36750 localhost:43616
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43616 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 358 0
localhost:36750 localhost:43372
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43598 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 345 0
localhost:36750 localhost:43612
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 309
localhost:45408 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 358
localhost:45356 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43764 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 309 0
localhost:36750 localhost:43084
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 345 0
localhost:36750 localhost:43126
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43084 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 309 0
localhost:36750 localhost:43492
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 309
localhost:45390 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 309 0
localhost:36750 localhost:43218
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 358 0
localhost:36750 localhost:43130
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 258 0
localhost:36750 localhost:43068
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 309
localhost:45264 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43068 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 345
localhost:45354 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:36750 localhost:43066
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 309 0
localhost:36750 localhost:43338
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 258
localhost:45104 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43372 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43338 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43370 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 309 0
localhost:36750 localhost:43542
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 309
localhost:45090 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43368 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43220 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43726 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 309
localhost:45144 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 309 0
localhost:36750 localhost:43598
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 309 0
localhost:36750 localhost:43366
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43612 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 309 0
localhost:36750 localhost:43724
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 309
localhost:45410 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 309
localhost:45278 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43218 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 309
localhost:45184 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:43130 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 309
localhost:45158 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 309
localhost:45338 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 309 0
localhost:36750 localhost:43220
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 345
localhost:45106 localhost:36750
ESTABLISHED<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><br>
I don't know enough about TCP/IP networking to say for sure, but this looks
like an awful lot of connections on the iigcn port (which should really just be
accepting connections, doing its thing, then dropping them). Also,
those connectiosn with a state of SYN_RECV seem like a problem. I'm not
entirely sure how to read this output -- it seems to be saying that there are
~65 active connections going on, with 13 more waiting in the wrings. I
could be entirely wrong about that, though. I'm no networking guru.<br>
<br>
By way of example, when the system ISN'T having this problem the output looks
more like this (at which time the gcn port is 37550):<o:p></o:p></p>
<div>
<p class=MsoNormal>tcp 0 0
localhost:52012 localhost:37550
TIME_WAIT<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:51888 localhost:37550
TIME_WAIT<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:51892 localhost:37550
TIME_WAIT<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:51860 localhost:37550
TIME_WAIT<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:52032 localhost:37550
TIME_WAIT<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:52036 localhost:37550
TIME_WAIT<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:51928 localhost:37550
TIME_WAIT<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:52068 localhost:37550
TIME_WAIT<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:51924 localhost:37550
TIME_WAIT<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:52038 localhost:37550
TIME_WAIT<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:52008 localhost:37550
TIME_WAIT<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:52006 localhost:37550
TIME_WAIT<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:51884 localhost:37550
TIME_WAIT<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:51896 localhost:37550
TIME_WAIT<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:52030 localhost:37550
TIME_WAIT<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:51998 localhost:37550
TIME_WAIT<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>tcp 0 0
localhost:52002 localhost:37550
TIME_WAIT<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
</div>
<div id=compose-signature>
<p class=MsoNormal style='margin-bottom:12.0pt'>I'm not really sure where to go
from here. Does anyone have any thoughts? Anything I could try in
order to diagnose this further. As I said above, I can write a program
that will test the connection and recover in the event of a failure, but I'd
really prefer to simply have a working system and not have to worry about that.
:)<br>
<br>
<o:p></o:p></p>
</div>
</div>
</body>
</html>