// /* @(#)database.wrm 1.3 4/8/96 */ // on the line in interpreted according to the keyword. // Current Keywords : PART, NAME, SESSION_KEEP_ALIVE, READLOCK_TIMEOUT, NOLOCK, SYNC_WRITE // // note : // - lines beginning by // are comments // - a line don't exeed 512 characters. // // PART = partition // partition types : // UNIX_FILE_SYSTEM = 1 // RAW_FILE_SYSTEM = 2 // hostname : // partition_name : full path or "ACEDB" if relative to ACEDB variable. // file_name : only for unix file system : name of the partition file. // for other types, "NONE" // // NAME is database name, this is set in the database super block when the database // is rebuilt. It can only be changed by rebuilding the database and can be used // as a reliable identifier for the database. This name is used in the main window // header and in status output. // // TITLE is an additional database name that is reread each time the database is // restarted. It can be used to give a more temporary title to a database to give // more information about the database. This title is used in the main window // and will override the main window title in wspec/displays.wrm, its also used in // the status output. // // SESSION_KEEP_ALIVE is the number of sessions to keep alive after // saving an update to the database. This number must be at least 1, // the code uses the default 2, if this value isn't set. 3 or 4 are also sensible. // If this number is much bigger than that, the amount of diskspace taken // up by data of old sessions that are kept alive, may be a considerable penalty. // // READLOCK_TIMEOUT is the time in hours after which a readlock is regarded // as a left-over from a crash process. Any readlock older than that will // be removed and ignored by the current and all subsequent acedb programs. // For newer version (>= 4.8) which clean up readlocks even after unforseen // crashes this number may be quite small (even as low as 2 or 3), because // readlocks of genuinely running processes are continuously restored. // A recommended safe number is 8 to 12 depending on usage of the database. // // NOLOCK On some platforms the Unix style lockf() system call is either // not supportd or is bugged. In this case you may want to // uncomment the NOLOCK line to prevent it being used. // Note that this disables one of the multiple access // checks. It therefore makes corruption of the database // by simultaneous access over the network more possible. // This is particularly a problem with an nfs mounted // database, because NFS buffering can bypass the other // acedb protections. // // SYNC_WRITE If acedb databases are accessed via NFS, writes to the // database can time out and fail _WITHOUT_ acedb being able to // detect this. This can lead to corruption of the database. // Uncommenting the below line will force acedb to open // database files for writing in synchronous mode. This will // slow down the writes by a factor of at least 5, _but_ acedb // will be able to detect when writes via NFS fail. You may need // to do this if your network becomes very overloaded but you // still need to be able to update the database reliably. // // GROUP_ADMIN By default only the person who owns the passwd.wrm file // can reinitialise the database. This can be a pain so if you uncomment // this option, then any user in the unix group for the passwd.wrm // file will be allowed to reinitialise. // //Keyword : type hostname partition_name file_name max_size offset PART : 1 local ACEDB block1.wrm 5000 0 PART : 1 local ACEDB block2.wrm 20000 0 PART : 1 local ACEDB block3.wrm 50000 0 PART : 1 local ACEDB block4.wrm 50000 0 PART : 1 local ACEDB block5.wrm 50000 0 PART : 1 local ACEDB block6.wrm 50000 0 PART : 1 local ACEDB block7.wrm 50000 0 PART : 1 local ACEDB block8.wrm 50000 0 PART : 1 local ACEDB block9.wrm 50000 0 PART : 1 local ACEDB block10.wrm 50000 0 PART : 1 local ACEDB block11.wrm 50000 0 PART : 1 local ACEDB block12.wrm 50000 0 PART : 1 local ACEDB block13.wrm 50000 0 PART : 1 local ACEDB block14.wrm 50000 0 PART : 1 local ACEDB block15.wrm 50000 0 PART : 1 local ACEDB block16.wrm 50000 0 PART : 1 local ACEDB block17.wrm 50000 0 PART : 1 local ACEDB block18.wrm 50000 0 PART : 1 local ACEDB block19.wrm 50000 0 PART : 1 local ACEDB block20.wrm 50000 0 PART : 1 local ACEDB block21.wrm 50000 0 PART : 1 local ACEDB block22.wrm 50000 0 PART : 1 local ACEDB block23.wrm 50000 0 PART : 1 local ACEDB block24.wrm 50000 0 PART : 1 local ACEDB block25.wrm 50000 0 PART : 1 local ACEDB block26.wrm 50000 0 PART : 1 local ACEDB block27.wrm 50000 0 PART : 1 local ACEDB block28.wrm 50000 0 PART : 1 local ACEDB block29.wrm 50000 0 PART : 1 local ACEDB block30.wrm 50000 0 PART : 1 local ACEDB block31.wrm 50000 0 PART : 1 local ACEDB block32.wrm 50000 0 PART : 1 local ACEDB block33.wrm 50000 0 PART : 1 local ACEDB block34.wrm 50000 0 PART : 1 local ACEDB block35.wrm 50000 0 PART : 1 local ACEDB block36.wrm 50000 0 PART : 1 local ACEDB block37.wrm 50000 0 PART : 1 local ACEDB block38.wrm 50000 0 PART : 1 local ACEDB block39.wrm 50000 0 PART : 1 local ACEDB block40.wrm 50000 0 PART : 1 local ACEDB block41.wrm 50000 0 PART : 1 local ACEDB block42.wrm 50000 0 PART : 1 local ACEDB block43.wrm 50000 0 PART : 1 local ACEDB block44.wrm 50000 0 PART : 1 local ACEDB block45.wrm 50000 0 PART : 1 local ACEDB block46.wrm 50000 0 PART : 1 local ACEDB block47.wrm 50000 0 PART : 1 local ACEDB block48.wrm 50000 0 PART : 1 local ACEDB block49.wrm 50000 0 PART : 1 local ACEDB block50.wrm 50000 0 // NAME BIRCHDB // TITLE documentation for core BIRCH distribution // // SESSION_KEEP_ALIVE 2 // // READLOCK_TIMEOUT 12 // // NOLOCK // // SYNC_WRITE // // GROUP_ADMIN // ///////////////// end of file