Meike Stone wrote:
Hello, because of problems with bdb (virtual memory using and glibc) and limitiations (IDL), I want migrate to mdb. So my first question: Does mdb have limitations like bdb it have aka BDB_IDL_LOGN?
Yes. back-mdb is ~60% the same code as back-bdb/hdb, its indexing functions are basically identical.
Second, I set up an small lab for tests with mdb and don't get the slapd started with larger mdb size (10GB).
Check your ulimits. MDB is much simpler than anything else but you are still required to understand how your own OS/platform works.
stat("/var/lib/ldap/ldap.mdb", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
mmap(NULL, 2101248, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
-1, 0) = 0x7fe38f915000
brk(0x7fe3948ae000) = 0x7fe3948ae000
open("/var/lib/ldap/ldap.mdb/lock.mdb", O_RDWR|O_CREAT, 0600) = 9
fcntl(9, F_GETFD) = 0
fcntl(9, F_SETFD, FD_CLOEXEC) = 0
fcntl(9, F_SETLK, {type=F_WRLCK, whence=SEEK_SET, start=0, len=1}) = 0
lseek(9, 0, SEEK_END) = 0
ftruncate(9, 8192) = 0
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_SHARED, 9, 0) = 0x7fe3941e4000
open("/var/lib/ldap/ldap.mdb/data.mdb", O_RDWR|O_CREAT, 0600) = 11
read(11, "", 4096) = 0
mmap(NULL, 10737418240, PROT_READ, MAP_SHARED, 11, 0) = -1 ENOMEM
(Cannot allocate memory)
close(11) = 0
munmap(0x7fe3941e4000, 8192) = 0
close(9) = 0
.
-- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/