Search redisplays Initial OPAC screen; no results

• Article Type: General
• Product: Aleph
• Product Version: 20, 21, 22, 23

Problem Symptoms:
1. the initial OPAC screen displays, but when a word is entered in the Search box and "Go" is clicked, nothing happens
2. Clicking on Advanced Search doesn't do anything
3. updates *are* being made to the $LOGDIR www server log

Cause:
> dlib vir01
> util a/17/14 for z63

showed that the z63_id Oracle index was missing.

And the most recent clear_vir01 log contains messages such as these:

CREATE UNIQUE INDEX VIR01.Z63_ID ON VIR01.Z63 (Z63_REC_KEY ASC) *
ERROR at line 1:
ORA-01452: cannot CREATE UNIQUE INDEX; duplicate keys found

or

CREATE UNIQUE INDEX VIR01.Z63_ID ON VIR01.Z63 (Z63_REC_KEY ASC)
ERROR at line 1:
ORA-00054: resource busy and acquire with NOWAIT specified

In the latter case, the "resource busy" could be caused by a spider/robot initiating a session at the same time as clear_vir01 is trying to drop/create the z63.

Note:  In almost every case "CREATE UNIQUE INDEX VIR01.Z63_ID" messages are seen in the www_server log.  But there has been at least one case where they were not.  Instead, the following "func" parameter was found on request lines in the log:  "func=find-b-0&amp=&amp=&amp=&amp=&amp=&amp=&amp=&amp=&amp=&amp=&amp=&amp<etc.> and the following message was seen at the end of the log:

Execution error : file '/exlibris/aleph/a22_1/aleph/exe/www_load_file.gnt'
error code: 114, pc=0, call=1, seg=0
114     Attempt to access item beyond bounds of memory (Signal 11)

Resolution:
> dlib vir01
> util a/17/1 for the z63.


Additional information

To prevent this problem:

* run clear_vir01 when no one will be accessing the system. Or, better,

* stop the pc server/ www server while clear_vir01 is running, as described in Article " Restart Servers from job_list ".

To check the runs of clear_vir01 to make certain that they have run without error,

> cd $alephe_scratch
> grep ERROR *vir01*