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Informix - Problem description

Problem IT35872 Status: Closed

TRYING TO ADD A NEW LOGICAL LOG VIA ONPARAMS WILL HANG IF LOGICAL LOGS ARE
FULL

product:
INFORMIX SERVER / 5725A3900 / E10 - 
Problem description:
if the logical logs are not backed up and a thread tries to
write to the next logical log,
any attempt to resolve this via onparams will fail.  If such an
attempt is made, for example by:

onparams -a -d logspace -i

... this will display:

Log operation started. To monitor progress, use the onstat -l
command.

... but then it will hang.

This is the online.log
12:52:32  Logical Log 88 Complete, timestamp: 0x78b4cf.
12:52:33  Logical Log Files are Full -- Backup is Needed  .....

From the onstat -g cpu output, the sqlexec thread is in
logchange and onparams is waiting on that condition:

 135    sqlexec           1cpu    01/13 13:54:23        2.6295
39871    sleeping secs: 1
 136    onparam           1cpu    01/13 12:52:52        0.0002
8    cond wait  log

The onparam thread has this stack:

0x00000000014281c4 (oninit) yield_processor_mvp
0x000000000143f476 (oninit) mt_fast_wait
0x0000000000f0ed8e (oninit) logm_write
0x0000000000ddfbf8 (oninit) logchalloc
0x0000000000d25e3d (oninit) challoc
0x0000000000d269e2 (oninit) dbsalloc
0x0000000000dcb2b5 (oninit) rslogadd
0x0000000000ef6edd (oninit) aud_islogadd
0x00000000015d5af3 (oninit) onparam
0x000000000154290b (oninit) spawn_thread
0x0000000001401c70 (oninit) th_init_initgls
0x0000000001448997 (oninit) startup
Problem Summary:
****************************************************************
* USERS AFFECTED:                                              *
* Users of Informix Server prior to 14.10.xC7.                 *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
* See Error Description                                        *
****************************************************************
* RECOMMENDATION:                                              *
* Upgrade to Informix Server 14.10.xC7.                        *
****************************************************************
Local Fix:
if the logical logs can be backed up, onparams will continue
Solution
Workaround
****************************************************************
* USERS AFFECTED:                                              *
* Users of Informix Server prior to 14.10.xC7.                 *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
* See Error Description                                        *
****************************************************************
* RECOMMENDATION:                                              *
* Upgrade to Informix Server 14.10.xC7.                        *
****************************************************************
Comment
Fixed in Informix Server 14.10.xC7.
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
11.02.2021
02.11.2021
02.11.2021
Problem solved at the following versions (IBM BugInfos)
Problem solved according to the fixlist(s) of the following version(s)
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