Re: WARNING: there is already a transaction in progress
От | Matevž Mrak |
---|---|
Тема | Re: WARNING: there is already a transaction in progress |
Дата | |
Msg-id | CAF3mAgmtENfTSmP6e0C+L3wsMxsyWmY6t5LPCxsVJOpOiSo=Jg@mail.gmail.com обсуждение исходный текст |
Ответ на | WARNING: there is already a transaction in progress (Matevž Mrak <matevz.mr@gmail.com>) |
Список | pgsql-odbc |
Dear support,I am using these software with your psqlodbc driver:unixODBC: 2.3.2.ODBC psqlodbc driver: http://www.postgresql.org/ftp/odbc/versions/src/ (latest) - psqlodbc-09.03.0300.tar.gzOSX version: 10.9.3UCS: UCS2Eclipse: Eclipse Standard/SDK - Kepler Service Release - Build id: 20140224-0627Python: 2.7.6mxBase version: egenix-mx-base-3.2.6-py2.7_ucs2-macosx-10.4-fat-prebuiltmxODBC version: egenix-mxodbc-3.1.2.macosx-10.4-fat-py2.7_ucs2.prebuilt-----------------I am getting error "WARNING: there is already a transaction in progress" when trying to execute command "BEGIN TRANSACTION; LOCK TABLE "%s" IN EXCLUSIVE MODE;'"We have written mutex which is working on other systems to unlock and lock database table using pgsql-odbc driver. Is that possible that transaction is ran automatically by driver or when "cur = self.conn.cursor()" is executed ? Has anyone else experienced that issue?-----------------Python code:def lock(self):"""
Engages the lock
@return: None
"""
log.info("mutex lock %d" % self.locked)
if not self.locked:
cur = self.conn.cursor()
log.info("mutex start tran")
self.locked = True
try:
cur.execute('BEGIN TRANSACTION; LOCK TABLE "%s" IN EXCLUSIVE MODE;' % self.table)
except:
log.info("mutex tran failed")
log.exception()
raise
else:
log.info("mutex tran started")
cur.close()
del cur
def unlock(self):
"""
Releases the lock
@return: None
"""
log.info("mutex unlock %d" % self.locked)
if self.locked:
try:
cur = self.conn.cursor()
except:
log.exception()
raise
log.info("mutex end trans")
self.locked = False
cur.execute("END TRANSACTION")
log.info("mutex trans ended")
cur.close()
del cur
Python error:InterfaceError: ('25001', -1, 'WARNING: there is already a transaction in progress', 8489)
- File "/Users/user/ana/ana/srv/orm/driver.py", line 100, in execute
[0m[31m14:58:53.862 0.0.0.0 {unknown} - Query to execute: BEGIN TRANSACTION; LOCK TABLE "Sys_sequencer" IN EXCLUSIVE MODE; - File "/Users/user/ana/ana/srv/orm/driver.py", line 101, in execute
SQL ODBC log: https://dl.dropboxusercontent.com/u/17952943/sql.logSQL ODBC warning in log:Statement = 0x100a0fa00SQL = [BEGIN TRANSACTION; LOCK TABLE "Sys_sequencer" IN EXCLUSIVE MODE;][length = 64][ODBC][20715][1405083533.616254][SQLExecDirect.c][503]Exit:[SQL_SUCCESS_WITH_INFO]DIAG [25001] WARNING: there is already a transaction in progress(BEGIN TRANSACTION; LOCK TABLE "Sys_sequencer" IN EXCLUSIVE MODE; is called three times one afteranother without unlock)--
Lep pozdrav,Matevž Mrak
Lep pozdrav,
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