hi, we hit from time to time the following issue: - some rows from a table are locked - there is no blocking session information and the session, which tries to acquire lock has blocking_session_status set to NO HOLDER The rows are locked by Tuxedo transaction. We suppose we hit the situation, when Tuxedo's TRAN_TIME is longer than distributed_lock_timeout and it seems setting those values to order TRAN_TIME<distributed_lock_timeout will solve this issue. Question is how/where to search for more information about the "thing" holding lock and if it is possible to release such lock for example by forcing a local rollback? Regards Remigiusz -- Pole nakazi ---------------------------------------------------------------------- Remigiusz Sokolowski <remigiusz.sokolowski@xxxxxxxxxx> pos : DBA at DIiUSI addr : Nordea Bank Polska SA, Luzycka 6A Street, 81-537 Gdynia, Poland phone : +48 58 667 17 43 mobile: +48 602 42 42 77 Nordea Bank Polska S.A. z siedzib? w Gdyni, ul. Kielecka 2, 81-303 Gdynia, wpisan? do Rejestru Przedsi?biorców Krajowego Rejestru S?dowego pod numerem: 0000021828, dla której dokumentacj? przechowuje S?d Rejonowy Gda?sk - Pó?noc w Gda?sku, VIII Wydzia? Gospodarczy Krajowego Rejestru S?dowego, o kapitale zak?adowym i wp?aconym w wysoko?ci: 227.593.500,00 z?otych, NIP: 586-000-78-20, REGON: 190024711 -- //www.freelists.org/webpage/oracle-l