Re: (ITS#9159) mdb_put failed: MDB_MAP_FULL: Environment mapsize limit reached(-30792)

I could see some stats from mdb-stat tool as mentioned below, mdb_stat.exe -rne "C:\openldap\mdb\data.mdb" Environment Info Map address: 0000000000000000 Map size: 268435456 (we have set the value as *‭104,857,600,000,000‬* in mdb.c and back_mdb.h files, but it has taken only 256 MB, not sure why?) Page size: 4096 Max pages: 65536 Number of pages used: 65527 Last transaction ID: 9555 Max readers: 126 Number of readers used: 0 Reader Table Status (no active readers) when i try to increase to set the dbMaxSize it fails, *addDbMaxSize.ldif * has content as mentioned below, dn: olcDatabase={1}mdb,cn=config changetype: modify add: olcDbMaxSize olcDbMaxSize: 1073741824 olcDbMaxSize: *1073741824 - stops the service in windows* openldap \bin>ldapmodify -H ldaps://localhost:6565 -D cn=admin,cn=config -w d -f addDbMaxSize.ldif modifying entry "olcDatabase={1}mdb,cn=config" *ldap_modify: Other (e.g., implementation specific) error (80) additional info: failed to reopen database, rc=87* olcDbMaxSize: ‭*536870912‬ - failed as below* openldap \bin>ldapmodify -H ldaps://localhost:6565 -D cn=admin,cn=config -w d -f addDbMaxSize.ldif modifying entry "olcDatabase={1}mdb,cn=config" *ldap_modify: Invalid syntax (21) additional info: olcDbMaxSize: value #0 invalid per syntax* *back-mdb.h - we added as below* #define DEFAULT_MAPSIZE (10 * 10 * 10 * 10 * 10 * 10 * 10 * 10 * 1048576) mdb.c - we added as below #define DEFAULT_MAPSIZE (10 * 10 * 10 * 10 * 10 * 10 * 10 * 10 * 1048576) if ((i = mdb_env_read_header(env, &meta)) != 0) { if (i != ENOENT) return i; DPUTS("new mdbenv"); newenv = 1; env->me_psize = env->me_os_psize; if (env->me_psize > MAX_PAGESIZE) env->me_psize = MAX_PAGESIZE; memset(&meta, 0, sizeof(meta)); mdb_env_init_meta0(env, &meta); meta.mm_mapsize = DEFAULT_MAPSIZE; } else { env->me_psize = meta.mm_psize; } *1. i am not getting why the size of the map (as per the stats info given above) - 256 MB (268435456) only ? please provide me a clue once to understand this.* *2. Kindly let me know how to get debug logs ? i use DPRINTF, DPUT in mdb.c but dint get see as logs printed.!* *We observed this in Windows 2012 R2 and Window10 OS x64 Arch machines.* Regards, Vijay Kumar On Thu, Jan 30, 2020 at 12:46 PM Quanah Gibson-Mount <quanah(a)symas.com&gt; wrote: -- Thanks & Regards, Vijay Kumar *+91-94944 44009*