Assertion failure twophase.c (2) (testing HS/SR)

in a 9.0devel, primary+standby, cvs from 2010.03.04 01:30

With three patches:

new_smart_shutdown_20100201.patch
extend_format_of_recovery_info_funcs_v4.20100303.patch
fix-KnownAssignedXidsRemoveMany-1.patch

pg_dump -d $db8.4.2 | psql -d $db9.0devel-primary

FailedAssertion, File: "twophase.c", Line: 1201.

The standby was restarted and seems to catch up OK again.

LOG: database system was interrupted; last known up at 2010-03-04 01:35:23 CET
cp: cannot stat `/var/data1/pg_stuff/dump/hotslave/replication_archive/000000010000000000000001':
No such file or directory
FATAL: the database system is starting up
LOG: entering standby mode
LOG: redo starts at 0/1000020
LOG: consistent recovery state reached at 0/2000000
LOG: database system is ready to accept read only connections
ERROR: cannot execute CREATE TABLE in a read-only transaction
STATEMENT: create table t (c text);
ERROR: cannot execute SELECT INTO in a read-only transaction
STATEMENT: create table t as select 1;
ERROR: cannot execute TRUNCATE TABLE in a read-only transaction
STATEMENT: truncate wal;
ERROR: cannot execute TRUNCATE TABLE in a read-only transaction
STATEMENT: truncate wal;
ERROR: cannot execute TRUNCATE TABLE in a read-only transaction
STATEMENT: truncate wal;
ERROR: cannot execute TRUNCATE TABLE in a read-only transaction
STATEMENT: truncate wal;
ERROR: cannot execute TRUNCATE TABLE in a read-only transaction
STATEMENT: truncate wal;
ERROR: cannot execute TRUNCATE TABLE in a read-only transaction
STATEMENT: truncate wal;
ERROR: cannot execute TRUNCATE TABLE in a read-only transaction
STATEMENT: truncate wal;
FATAL: database "ms" does not exist
TRAP: FailedAssertion("!(((xid) != ((TransactionId) 0)))", File: "twophase.c", Line: 1201)
LOG: startup process (PID 18107) was terminated by signal 6: Aborted
LOG: terminating any other active server processes
WARNING: terminating connection because of crash of another server process
DETAIL: The postmaster has commanded this server process to roll back the current transaction and
exit, because another server process exited abnormally and possibly corrupted shared memory.
HINT: In a moment you should be able to reconnect to the database and repeat your command.
LOG: database system was interrupted while in recovery at log time 2010-03-04 05:00:24 CET
HINT: If this has occurred more than once some data might be corrupted and you might need to
choose an earlier recovery target.
cp: cannot stat `/var/data1/pg_stuff/dump/hotslave/replication_archive/000000010000001C0000007F':
No such file or directory
LOG: entering standby mode
LOG: redo starts at 1C/7800F8E0
LOG: consistent recovery state reached at 1C/ADB9C178
LOG: database system is ready to accept read only connections

The ERRORs (and FATAL) were accidentally issued commands; I can't tell if they were causing the
assertion. (database 'ms' indeed was not present on this instance)

see also:
http://archives.postgresql.org/pgsql-hackers/2010-02/msg02221.php

thanks,

Erik Rijkers