preload_all_udomains was used to load data from the database. The dlist.c patch loads the contents of the database if its in readback mode (this code is added within the timer code) Ucontact.c patch just makes readback act the same as writeback ul_mod.c patch is just a comment addition ul_mod.h patch adds the constant for the new mode urecord.c patch calls the timer in readback mode. udomain.c patch purges the old records before the new ones are loaded at quick glance, it looks like preload_all_udomains has been murged into register_udomain. Again, at quick glance, it looks like this is the block of revelant code. I don’t have time to study this in more depth tho. if (db_mode != NO_DB) { con = ul_dbf.init(db_url.s); if (!con) { LOG(L_ERR, "register_udomain(): Can not open database connection\n"); goto err; } ver = table_version(&ul_dbf, con, &s); if (ver < 0) { LOG(L_ERR, "register_udomain(): Error while querying table version\n"); goto err; } else if (ver < TABLE_VERSION) { LOG(L_ERR, "register_udomain(): Invalid table version (use ser_mysql.sh reinstall)\n"); goto err; } if (preload_udomain(con, d->d) < 0) { LOG(L_ERR, "register_udomain(): Error while preloading domain '%.*s'\n", s.len, ZSW(s.s)); goto err; } ul_dbf.close(con); } ________________________________________ From: serusers-bounces(a)iptel.org [mailto:serusers-bounces@lists.iptel.org] On Behalf Of Chia Huey Lim Sent: Thursday, August 18, 2005 3:17 AM To: serusers(a)lists.iptel.org Subject: [Serusers] periodically read back from db Hi all, I am using ser-0.9.3. I wish to have multiple SER in synchronization at database level. Therefore, I have to patch SER so that it will also periodically read back the location table from db to the cache as well. I’ve followed the patch at http://bugs.sip-router.org/browse/SER-46 however, I can’t use preload_all_udomains();  for dlist.c Anyone has any clue what’s that for? Anyone has successfully patch the version 0.9.3 so that SER can write and read back from the location table? Thanks in advance. Regards, Chia