Last night one of these vacuum fulls deadlocked with a query on this table. Both were stuck doing nothing until I did a kill -INT on the backends doing the vacuum.
So my questions:
1) What can I do to avoid this?
2) What do I do next time this happens to get more debugging info out of the situation?
My postgres version:
PostgreSQL 7.4.5 on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 3.2.2 20030222 (Red Hat Linux 3.2.2-5)
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