Hahn, Uwe wrote: > You recognized some changes which where done in 7.4. > > Logmode: > > 7.3 LOG_MODE=SINGLE => 7.4.current LOG_MODE=SINGLE => > 7.4.develop LOG_MIRRORED=NO > 7.3 LOG_MODE=DUAL => 7.4.current LOG_MODE=DUAL => > 7.4.develop LOG_MIRRORED=YES > 7.3 LOG_MODE=DEMO => 7.4.current disabled/removed => > 7.4.develop LOG_BACKUP=NO (default: YES) > > In addition 7.4 knows a very risky feature. You can switch > off log writing for transactions. > But you have to be aware that you commit changes and they are > NOT durable because a restart resets the > database state to the last savepoint. This is the main > difference between switing off log writing and LOG_BACKUP=NO > (previously known as logmode=demo). In the last case you can > recover to the last commit written to the log. > > Shutdown: > > 7.4 does not know the SHUTDOWN QUICK. There is only one > shutdown which changes the kernels state to offline. > 7.4.current: If during shutdown there are open write > transactions these transactions receive a cancel request and > are forced to rollback. The shutdown waits until the > REQUEST_TIMEOUT is reached and then a savepoint with > reason=shutdown is triggered and the kernel becomes offline. > 7.4.develop: The kernel writes the savepoint with > reason=shutdown and switches to offline immediatly. > This behaviour normally makes it obsolete to call db_stop. > > regards > Uwe
Unfortunately Uwe did not mention that 7.4.3beta does NOT include the options mentioned above. The changes wre made with 7.4.3.10 resp. 7.4.4 (named 7.4develop by him). 7.4.3beta is 7.4.3.7 --> do not try to find something similar to Log_Mode DEMO in the current 7.4-version available. As Daniel wrote November 28th according 7.4: " The final release is now scheduled for February 2003. There will probably be at least one more beta-release. Daniel Dittmar " Elke SAP Labs Berlin > > > -----Original Message----- > > From: Watz [mailto:[EMAIL PROTECTED]] > > Sent: Mittwoch, 11. Dezember 2002 00:17 > > To: [EMAIL PROTECTED] > > Subject: Question on 7.4 LOG_MODE > > > > > > Hi, > > > > I was wondering if the DEMO logmode was removed in SAPDB 7.4. > > Instead of SINGLE/DEMO theres now a SINGLE/OFF setting in DBM > > GUI, and setting the database to SINGLE/OFF switched off the > > log indeed but the old parameter LOG_MODE still stays on > > SINGLE and not DEMO like in the previous versions (?). > > Is the LOG_MODE parameter not used anymore in 7.4 ? > > > > And another thing....is just the "Stop" button on the > > database shutdown dialog in DBM GUI removed for 7.4 > > installations or is the actual db_stop DBM server command > > disabled for those ? > > Previously the box had something like "shutdown/shutdown > > quick/cancel" as far as I remember. > > > > I migrated an R/3 testdrive installation successfully from > > SAPDB 7.3 to 7.4 today (with a new dbadaslib though to > > support 7.4), worked just as described in the migration > > manual on the sapdb.org site and no issues so far :) > > > > Watz > > > > _______________________________________________ > > sapdb.general mailing list > > [EMAIL PROTECTED] > > http://listserv.sap.com/mailman/listinfo/sapdb.general > > > _______________________________________________ > sapdb.general mailing list > [EMAIL PROTECTED] > http://listserv.sap.com/mailman/listinfo/sapdb.general > _______________________________________________ sapdb.general mailing list [EMAIL PROTECTED] http://listserv.sap.com/mailman/listinfo/sapdb.general
