>
> The early run invariably (well, for three days running) fails with the
> following message.
>
> Cannot read system catalog (systables).
> See error number -211.
>
I have seen this error occurr in ESQL-C programs. In our case it
was due to someone running 'update statistics'. This updates some
of the data in the system catalogue, so the catalogue gets locked
for a while. This is why queries can't read them.
This is a real problem for 24x7 sites. Informix say that you must
update statistics regularly or loose performance, but make it
impossible to do so without suffering.
--
Regards,
Andrew.
+---------------------------------+----------------------------------+
| Andrew Roberts | UUCP: ...uknet!valstr!ar |
| Support Manager | Internet: ar@valstr.uucp |
| Valstar Systems Limited | |
| Burghmuir Drive, Inverurie | |
| Aberdeenshire, Scotland | Voice: +44 467 22720 |
| AB51 9GY | Fax: +44 467 24120 |
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