How to get the debugging information when connection and communication issues happen.
1. Problem
IQ has a communication and connection problem as follows.
[Example : Communication Error]
Starting server hpita_iqdemo on hpita at port 4444 (06/01 09:57:47)
Run Directory : /gjang/IQ-16_0/demo
Server Executable : /gjang/IQ-16_0/bin64/iqsrv16
Server Output Log : /gjang/IQ-16_0/logfiles/hpita_iqdemo.0065.srvlog
Server Version : 16.0.0.809/sp08.32
....
DBSPAWN ERROR: -85
Communication error
2. To get more detailed information regarding connection and communication.
This switch "-z" displays diagnostic communication messages, and other messages, for troubleshooting purposes.
Information is logged to standard output in the srvlog file.
[Example : -z switch with srvlog]
1) Startup
I. 06/01 10:11:42. Trying to start SharedMemory link ...
I. 06/01 10:11:42. SharedMemory link started successfully
I. 06/01 10:11:42. Trying to start TCPIP link ...
I. 06/01 10:11:42. Could not bind to address (::):4444
I. 06/01 10:11:42. TCPIP communication link not started
I. 06/01 10:11:42. Unable to initialize requested communication links
E. 06/01 10:11:42. Unable to initialize requested communication links
I. 06/01 10:11:42. Database server shutdown due to startup error
I. 06/01 10:11:42. Disallowing new connections
I. 06/01 10:11:42. Shutting down databases
I. 06/01 10:11:42. Starting checkpoint of "iqdemo" (iqdemo.db) at Mon Jun 01 2015 10:11
I. 06/01 10:11:42. Finished checkpoint of "iqdemo" (iqdemo.db) at Mon Jun 01 2015 10:11
I. 06/01 10:11:42. Completing server shutdown
I. 06/01 10:11:42. Database server stopped at Mon Jun 01 2015 10:11
or
2) select * from gjang;
I. 05/28 10:56:23. TDS 5: language SQL: 'select * from gjang\x0A'
I. 05/28 10:56:23. <,6,EXEC_ANY_IMM,select * from "gjang"
I. 05/28 10:56:23. TDS 5: result set: c1 _int(4), c2 _int(4)
I. 05/28 10:56:23. P,6,vt_1<seq>
I. 05/28 10:56:23. TDS 5: result row: 2, 1
I. 05/28 10:56:23. TDS 5: result row: 2, 1
I. 05/28 10:56:23. TDS 5: result row: 2, 1
I. 05/28 10:56:23. TDS 5: result row: 2, 1
I. 05/28 10:56:23. TDS 5: result row: 2, 1
I. 05/28 10:56:23. TDS 5: result row: 1, 1
I. 05/28 10:56:23. W,6,100,Row not found
I. 05/28 10:56:23. P,6,vt_1<seq>
I. 05/28 10:56:23. W,6,105,Procedure has completed
I. 05/28 10:56:23. >.,6
I. 05/28 10:56:23. TDS 5: request complete
I. 05/28 10:56:33. TDS 5: logout
I. 05/28 10:56:33. <,6,DISCONNECTs
3. Caution
- This should only be used when tracking problems.
- SUPPRESS_TDS_DEBUGGING optioin restricts the debugging information about TDS that appears in the server window.
ex) set option public.suppress_tds_debugging='ON';
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Gi-Sung Jang
