Another TCP Reassembly Queue Issue - Help Understanding Sh IP Traffic Results

I recently started seeing the TCP Out-of-Order blurbs on my 1921/k9 routers logs. See following....
*Oct 28 06:41:32.793: %FW-4-TCP_OoO_SEG: Dropping TCP Segment: seq:-1475532578 1500 bytes is out-of-order; expected seq:2819411594. Reason: TCP reassembly queue overflow - session 192.168.10.11:58675 to 23.77.232.34:80 on zone-pair ccp-zp-in-out class ccp-protocol-http
*Oct 28 15:09:21.539: %FW-4-TCP_OoO_SEG: Dropping TCP Segment: seq:79628295 1488 bytes is out-of-order; expected seq:79600783. Reason: TCP reassembly queue overflow - session 192.168.10.25:55690 to 206.19.48.10:80 on zone-pair ccp-zp-in-out class ccp-protocol-http
*Oct 28 15:16:44.803: %FW-4-TCP_OoO_SEG: Dropping TCP Segment: seq:-1210068379 1500 bytes is out-of-order; expected seq:3084764253. Reason: TCP reassembly queue overflow - session 192.168.10.13:50591 to 107.167.193.162:80 on zone-pair ccp-zp-in-out class ccp-protocol-http
I temporarily disabled TCP Queue length logs (setting to 0) after having changed to several options including 128 and 1024 did not help. The output of Sh IP Traffic....
"Router#sh ip traffic
IP statistics:
Rcvd: 411466 total, 163659 local destination
0 format errors, 0 checksum errors, 2 bad hop count
0 unknown protocol, 1 not a gateway
0 security failures, 0 bad options, 0 with options
Opts: 0 end, 0 nop, 0 basic security, 0 loose source route
0 timestamp, 0 extended security, 0 record route
0 stream ID, 0 strict source route, 0 alert, 0 cipso, 0 ump
0 other
Frags: 0 reassembled, 0 timeouts, 0 couldn't reassemble
0 fragmented, 0 fragments, 0 couldn't fragment
Bcast: 162854 received, 415 sent
Mcast: 0 received, 0 sent
Sent: 5560 generated, 18211176 forwarded
Drop: 22 encapsulation failed, 0 unresolved, 0 no adjacency
2383 no route, 0 unicast RPF, 0 forced drop
0 options denied
Drop: 0 packets with source IP address zero
Drop: 0 packets with internal loop back IP address
0 physical broadcast
ICMP statistics:
Rcvd: 0 format errors, 0 checksum errors, 0 redirects, 0 unreachable
11 echo, 0 echo reply, 0 mask requests, 0 mask replies, 0 quench
0 parameter, 0 timestamp, 0 timestamp replies, 0 info request, 0 other
0 irdp solicitations, 0 irdp advertisements
0 time exceeded, 0 info replies
Sent: 2028 redirects, 2809 unreachable, 35 echo, 11 echo reply
0 mask requests, 0 mask replies, 0 quench, 0 timestamp, 0 timestamp replies
0 info reply, 2 time exceeded, 0 parameter problem
0 irdp solicitations, 0 irdp advertisements
BGP statistics:
Rcvd: 0 total, 0 opens, 0 notifications, 0 updates
0 keepalives, 0 route-refresh, 0 unrecognized
Sent: 0 total, 0 opens, 0 notifications, 0 updates
0 keepalives, 0 route-refresh
PIMv2 statistics: Sent/Received
Total: 0/0, 0 checksum errors, 0 format errors
Registers: 0/0 (0 non-rp, 0 non-sm-group), Register Stops: 0/0, Hellos: 0/0
Join/Prunes: 0/0, Asserts: 0/0, grafts: 0/0
Bootstraps: 0/0, Candidate_RP_Advertisements: 0/0
Queue drops: 0
State-Refresh: 0/0
IGMP statistics: Sent/Received
Total: 0/0, Format errors: 0/0, Checksum errors: 0/0
Host Queries: 0/0, Host Reports: 0/0, Host Leaves: 0/0
DVMRP: 0/0, PIM: 0/0
Queue drops: 0
TCP statistics:
Rcvd: 39 total, 0 checksum errors, 37 no port
Sent: 2 total
EIGRP-IPv4 statistics:
Rcvd: 0 total
Sent: 0 total
UDP statistics:
Rcvd: 163487 total, 0 checksum errors, 162603 no port
Sent: 695 total, 0 forwarded broadcasts
OSPF statistics:
Last clearing of OSPF traffic counters never
Rcvd: 0 total, 0 checksum errors
0 hello, 0 database desc, 0 link state req
0 link state updates, 0 link state acks
Sent: 0 total
0 hello, 0 database desc, 0 link state req
0 link state updates, 0 link state acks
ARP statistics:
Rcvd: 3651888 requests, 72 replies, 0 reverse, 0 other
Sent: 159 requests, 28560 replies (225 proxy), 0 reverse
Drop due to input queue full: 0"
Would someone be so kind as to help me understand a little about my IP Traffic and what might be going wrong? Thanks for any input. --Tim

With Queue Length set to 1024:
Router>show ip inspect statistics
Interfaces configured for inspection 4294967294
Session creations since subsystem startup or last reset 0
Current session counts (estab/half-open/terminating) [0:0:0]
Maxever session counts (estab/half-open/terminating) [0:0:0]
Last session created never
Last statistic reset never
Last session creation rate 0
Maxever session creation rate 0
Last half-open session total 0
TCP reassembly statistics
received 0 packets out-of-order; dropped 0
peak memory usage 0 KB; current usage: 0 KB
peak queue length 0

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Maxever session counts (estab/half-open/terminating) [0:0:0]
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Thank you for youre reply.
I have also tried the paramet-map ooo settings but these also didnt resolve the issue.
Im not getting any complaints from the clients at the site.
I will go onsite next week and will do some testing/sniffing.
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After tweaking the buffers and time outs the TCP reassembly queu overflow message does not occur anymore.
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%FW-4-TCP_OoO_SEG: Deleting session as expected TCP segment with seq:4121294117 has not arrived even after 900 seconds - session xxxxx to xxxxxxxxx on zone-pair ccp-zp-in-out class ccp-protocol-http.
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Posting
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dbms_r
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Patch 2 is MSC11510: 9001833 APCC MSC_PHUB_CUSTOMERS_MV WORKER IS STUCK ON "DB FILE SEQUENTIAL READ" 12 HOURS
The MV is APPS.MSC_PHUB_CUSTOMERS_MV
This happens at customer environment but not reproducable in our internal environment, as our testing data is much smaller.
Taking closer look in the logs, I saw actually when applying both patch 1 and patch 2, MV doesn't exist in the database. So seems my previous assumption is wrong. Still, strange that patch 2 contains only one file which is the MV.xdf, it took 7 hours and finally got killed.
-- patch 1 log
Materialized View Name is MSC_PHUB_CUSTOMERS_MV
Materialized View does not exist in the target database
Executing create Statement
Create Statement is
CREATE MATERIALIZED VIEW "APPS"."MSC_PHUB_CUSTOMERS_MV"
ORGANIZATION HEAP PCTFREE 10 PCTUSED 40 INITRANS 10 MAXTRANS 255 LOGGING
STORAGE(INITIAL 4096 NEXT 131072 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 4 FREELIST GROUPS 4 BUFFER_POOL DEFAULT)
TABLESPACE "APPS_TS_SUMMARY"
BUILD IMMEDIATE
USING INDEX
REFRESH FORCE ON DEMAND
WITH ROWID USING DEFAULT LOCAL ROLLBACK SEGMENT
DISABLE QUERY REWRITE
AS select distinct
from
dual
AD Worker error:
The above program failed. See the error messages listed
above, if any, or see the log and output files for the program.
Time when worker failed: Tue Feb 02 2010 10:01:46
Manager says to quit.
-- patch 2 log
Materialized View Name is MSC_PHUB_CUSTOMERS_MV
Materialized View does not exist in the target database
Executing create Statement
Create Statement is
CREATE MATERIALIZED VIEW "APPS"."MSC_PHUB_CUSTOMERS_MV"
ORGANIZATION HEAP PCTFREE 10 PCTUSED 40 INITRANS 10 MAXTRANS 255 LOGGING
STORAGE(INITIAL 4096 NEXT 131072 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 4 FREELIST GROUPS 4 BUFFER_POOL DEFAULT)
TABLESPACE "APPS_TS_SUMMARY"
BUILD DEFERRED
USING INDEX
REFRESH COMPLETE ON DEMAND
WITH ROWID USING DEFAULT LOCAL ROLLBACK SEGMENT
DISABLE QUERY REWRITE
AS select distinct
from dual
Start time for statement above is Tue Feb 02 10:05:06 GMT 2010
Exception occured ORA-00028: your session has been killed
ORA-00028: your session has been killed
ORA-06512: at "APPS.AD_MV", line 116
ORA-06512: at "APPS.AD_MV", line 258
ORA-06512: at line 1
java.sql.SQLException: ORA-00028: your session has been killed
ORA-00028: your session has been killed
ORA-06512: at "APPS.AD_MV", line 116
ORA-06512: at "APPS.AD_MV", line 258
ORA-06512: at line 1
Exception occured :No more data to read from socket
AD Run Java Command is complete.
Copyright (c) 2002 Oracle Corporation
Redwood Shores, California, USA
AD Java
Version 11.5.0
NOTE: You may not use this utility for custom development
unless you have written permission from Oracle Corporation.
AD Worker error:
The above program failed. See the error messages listed
above, if any, or see the log and output files for the program.
Time when worker failed: Tue Feb 02 2010 19:51:27
Start time for statement above is Tue Feb 02 12:44:52 GMT 2010
End time for statement above is Tue Feb 02 19:51:29 GMT 2010
Thanks,
Wei

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