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Informix - Problem description

Problem IT39738 Status: Closed

ON A VERY BUSY SYSTEM "ONSTAT -G SES NNN" DOES NOT PROVIDE SESSION
DETAILS.

product:
INFORMIX SERVER / 5725A3900 / E10 - 
Problem description:
The problem is observed on 14.10.xC7 Solaris Machine. On a busy
system, if they run "onstat -g ses" report when sessions are
being being added and/or destroyed
we seem to have session control block structures in the list but
they contain next/prev of null, resulting
not to print some session details. Where as "onstat -g sql" on
same session id is printing the details correctly.

ex:
-bash-4.4$ onstat -g ses 31087254

IBM Informix Dynamic Server Version 14.10.FC7 -- On-Line (Prim)
-- Up 12 days 02:38:38 -- 12967936 Kbytes

2022-01-26 10:10:11


Last 20 Sessions Terminated


Ses ID Username          Hostname          PID   Time
Reason

20676719 scmroot            -1    12/01/2022.21:11
onmode z

20688143 scmroot            -1    12/01/2022.21:19
onmode z


-bash-4.4$ onstat -g sql 31087254


IBM Informix Dynamic Server Version 14.10.FC7 -- On-Line (Prim)
-- Up 12 days 02:38:44 -- 12967936 Kbytes

2022-01-26 10:10:11



Sess      SQL           Current           Iso Lock      SQL ISAM
F.E.

Id        Stmt type     Database          Lvl Mode      ERR ERR
Vers Explain

31087254  -             testdb    CR Wait 5    0   0   9.28 Off


Current Role : db_role


Last parsed SQL statement :

 select * from employee
Problem Summary:
****************************************************************
* USERS AFFECTED:                                              *
* Users of Informix Server prior to 14.10.xC8.                 *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
* See Error Description                                        *
****************************************************************
* RECOMMENDATION:                                              *
* Upgrade to Informix Server 14.10.xC8.                        *
****************************************************************
Local Fix:
Solution
Workaround
****************************************************************
* USERS AFFECTED:                                              *
* Users of Informix Server prior to 14.10.xC8.                 *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
* See Error Description                                        *
****************************************************************
* RECOMMENDATION:                                              *
* Upgrade to Informix Server 14.10.xC8.                        *
****************************************************************
Comment
Fixed in Informix Server 14.10.xC8.
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
25.01.2022
07.04.2022
07.04.2022
Problem solved at the following versions (IBM BugInfos)
Problem solved according to the fixlist(s) of the following version(s)