APAR status
Closed as program error.
Error description
Consider this pseudo definition of a stored procedure (SP): create procedure nodml() on exception in (-936) commit work; end exception; begin work; select from remote database on remote server; insert into local database system 'sleep 20' select from same remote database on same remote server as above end procedure When the nodml() SP is executed, the first remote select starts a remote session on the remote server to handle the remote query then it does the local insert. If, during the 'sleep 20', the remote session is terminated with a command like onmode -z, then when we attempt the 2nd remote select, it will fail with a -936 error and trigger the 'on exception' code where we try to commit. In this case, the commit work returns a -934 error, but the local data insert will be committed. Now, consider this pseudo procedure definition: create procedure dml() on exception in (-936) commit work; end exception; begin work; select from remote database on remote server; insert into remote database on remote server; insert into local database system 'sleep 20' select from same remote database on same remote server as above end procedure When the dml() SP is executed, the first remote select starts a remote session on the remote server to handle the remote query. This remote session also handles the remote insert. The procedure then does a local insert. If, during the 'sleep 20', the remote session is terminated with a command like onmode -z, then when we attempt the 2nd remote select, it will fail with a -936 error and trigger the 'on exception' code where we try to commit. In this case the commit will return a -934 error and both the remote DML and the local DML will have been rolled back. In both cases, the commit returns a -934 error, yet in one case the SQL is committed and in the other case the SQL is rolled back. Without further investigation, the user can't be clear as to whether or not the data was actually committed.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * * More than one server is participating in the transaction and * * only one server has updated (i.e inserted/delete/updated) * * when remote connection is lost. * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Update to IDS-11.70.xC8 * ****************************************************************
Problem conclusion
Problem Fixed In IDS-11.70.xC8
Temporary fix
Comments
APAR Information
APAR number
IC91982
Reported component name
INFORMIX SERVER
Reported component ID
5725A3900
Reported release
B50
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-04-29
Closed date
2014-02-26
Last modified date
2014-02-26
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
INFORMIX SERVER
Fixed component ID
5725A3900
Applicable component levels
RB50 PSY
UP
RB70 PSY
UP
RC10 PSY
UP
[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSGU8G","label":"Informix Servers"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"B50","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
26 February 2014