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Problems getting mdb_stat to work

To: openldap-technical@openldap.org
Subject: Problems getting mdb_stat to work
From: Mark Cairney <Mark.Cairney@ed.ac.uk>
Date: Tue, 27 Nov 2012 17:19:19 +0000
Content-disposition: inline
Hi,

I've acquired the libmdb tools from the Gitorious page. I've got it to compile (with some warnings, see below) but it throws an error when I try and run mdb_stat on the mdb directory:

Compilation yields the following:

[root@birch libmdb]# ./make.sh 
gcc -pthread -O2 -g -DMDB_DSYNC=O_SYNC -W -Wall -Wno-unused-parameter -Wbad-function-cast -std=c99 -pedantic -fPIC  -c mdb.c
mdb.c:433: warning: extra semicolon in struct or union specified
mdb.c:796: warning: implicit declaration of function ‘fdatasync’
mdb.c:1388: warning: implicit declaration of function ‘pwrite’
mdb.c:1699: warning: implicit declaration of function ‘ftruncate’
mdb.c:1885: warning: implicit declaration of function ‘strdup’
mdb.c:1885: warning: assignment makes pointer from integer without a cast
mdb.c:4079: warning: assignment makes pointer from integer without a cast
gcc -pthread -O2 -g -DMDB_DSYNC=O_SYNC -W -Wall -Wno-unused-parameter -Wbad-function-cast -std=c99 -pedantic -fPIC  -c midl.c
ar rs libmdb.a mdb.o midl.o
ar: creating libmdb.a
gcc -shared -o libmdb.so mdb.o midl.o
gcc -pthread -O2 -g -DMDB_DSYNC=O_SYNC -W -Wall -Wno-unused-parameter -Wbad-function-cast -std=c99 -pedantic  -c mdb_stat.c
gcc -pthread -O2 -g -DMDB_DSYNC=O_SYNC -W -Wall -Wno-unused-parameter -Wbad-function-cast -std=c99 -pedantic  mdb_stat.o libmdb.a  -o mdb_stat
gcc -pthread -O2 -g -DMDB_DSYNC=O_SYNC -W -Wall -Wno-unused-parameter -Wbad-function-cast -std=c99 -pedantic  -c mtest.c
gcc -pthread -O2 -g -DMDB_DSYNC=O_SYNC -W -Wall -Wno-unused-parameter -Wbad-function-cast -std=c99 -pedantic  mtest.o libmdb.a  -o mtest
gcc -pthread -O2 -g -DMDB_DSYNC=O_SYNC -W -Wall -Wno-unused-parameter -Wbad-function-cast -std=c99 -pedantic  -c mtest2.c
gcc -pthread -O2 -g -DMDB_DSYNC=O_SYNC -W -Wall -Wno-unused-parameter -Wbad-function-cast -std=c99 -pedantic  mtest2.o libmdb.a  -o mtest2
gcc -pthread -O2 -g -DMDB_DSYNC=O_SYNC -W -Wall -Wno-unused-parameter -Wbad-function-cast -std=c99 -pedantic  -c mtest3.c
gcc -pthread -O2 -g -DMDB_DSYNC=O_SYNC -W -Wall -Wno-unused-parameter -Wbad-function-cast -std=c99 -pedantic  mtest3.o libmdb.a  -o mtest3

Running the command gives the following:

[root@birch tmp]# ./mdb_stat /usr/local/authz/var/openldap-data/authorise-test
mdb_env_open failed, error 22

Running this through strace looks like:

[root@birch tmp]# strace ./mdb_stat /usr/local/authz/var/openldap-data/authorise-test
execve("./mdb_stat", ["./mdb_stat", "/usr/local/authz/var/openldap-da"...], [/* 29 vars */]) = 0
brk(0)                                  = 0x200f000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb138ef5000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=66956, ...}) = 0
mmap(NULL, 66956, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fb138ee4000
close(3)                                = 0
open("/lib64/libpthread.so.0", O_RDONLY) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\\\340\2401\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=145720, ...}) = 0
mmap(0x31a0e00000, 2212768, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x31a0e00000
mprotect(0x31a0e17000, 2097152, PROT_NONE) = 0
mmap(0x31a1017000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x17000) = 0x31a1017000
mmap(0x31a1019000, 13216, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x31a1019000
close(3)                                = 0
open("/lib64/libc.so.6", O_RDONLY)      = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360\355a\2401\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1922112, ...}) = 0
mmap(0x31a0600000, 3745960, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x31a0600000
mprotect(0x31a0789000, 2097152, PROT_NONE) = 0
mmap(0x31a0989000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x189000) = 0x31a0989000
mmap(0x31a098e000, 18600, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x31a098e000
close(3)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb138ee3000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb138ee2000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb138ee1000
arch_prctl(ARCH_SET_FS, 0x7fb138ee2700) = 0
mprotect(0x31a0989000, 16384, PROT_READ) = 0
mprotect(0x31a1017000, 4096, PROT_READ) = 0
mprotect(0x31a041f000, 4096, PROT_READ) = 0
munmap(0x7fb138ee4000, 66956)           = 0
set_tid_address(0x7fb138ee29d0)         = 13054
set_robust_list(0x7fb138ee29e0, 0x18)   = 0
futex(0x7fff78256ffc, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0x7fff78256ffc, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1, NULL, 7fb138ee2700) = -1 EAGAIN (Resource temporarily unavailable)
rt_sigaction(SIGRTMIN, {0x31a0e05ae0, [], SA_RESTORER|SA_SIGINFO, 0x31a0e0f500}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {0x31a0e05b70, [], SA_RESTORER|SA_RESTART|SA_SIGINFO, 0x31a0e0f500}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=10240*1024, rlim_max=RLIM_INFINITY}) = 0
mmap(NULL, 2101248, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb138ce0000
brk(0)                                  = 0x200f000
brk(0x2030000)                          = 0x2030000
open("/usr/local/authz/var/openldap-data/authorise-test/lock.mdb", O_RDWR|O_CREAT, 0) = 3
fcntl(3, F_SETLK, {type=F_WRLCK, whence=SEEK_SET, start=0, len=1}) = -1 EAGAIN (Resource temporarily unavailable)
fcntl(3, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=0, len=1}) = 0
lseek(3, 0, SEEK_END)                   = 6272
mmap(NULL, 6272, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7fb138ef3000
open("/usr/local/authz/var/openldap-data/authorise-test/data.mdb", O_RDONLY) = 4
read(4, "\0\0\0\0\0\0\0\0\0\0\10\0\0\0\0\0\336\300\357\276\1\0\0\0\0\0\0\0\0\0\0\0"..., 4096) = 4096
close(4)                                = 0
close(3)                                = 0
fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb138ef2000
write(1, "mdb_env_open failed, error 22\n", 30mdb_env_open failed, error 22
) = 30
exit_group(1)                           = ?
[root@birch tmp]# 
[root@birch tmp]# 
[root@birch tmp]# 
[root@birch tmp]# ./mdb_stat /usr/local/authz/var/openldap-data/authorise-test
mdb_env_open failed, error 22
[root@birch tmp]# strace ./mdb_stat /usr/local/authz/var/openldap-data/authorise-test
execve("./mdb_stat", ["./mdb_stat", "/usr/local/authz/var/openldap-da"...], [/* 29 vars */]) = 0
brk(0)                                  = 0x1946000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb3f6a65000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=66956, ...}) = 0
mmap(NULL, 66956, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fb3f6a54000
close(3)                                = 0
open("/lib64/libpthread.so.0", O_RDONLY) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\\\340\2401\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=145720, ...}) = 0
mmap(0x31a0e00000, 2212768, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x31a0e00000
mprotect(0x31a0e17000, 2097152, PROT_NONE) = 0
mmap(0x31a1017000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x17000) = 0x31a1017000
mmap(0x31a1019000, 13216, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x31a1019000
close(3)                                = 0
open("/lib64/libc.so.6", O_RDONLY)      = 3
read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360\355a\2401\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1922112, ...}) = 0
mmap(0x31a0600000, 3745960, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x31a0600000
mprotect(0x31a0789000, 2097152, PROT_NONE) = 0
mmap(0x31a0989000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x189000) = 0x31a0989000
mmap(0x31a098e000, 18600, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x31a098e000
close(3)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb3f6a53000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb3f6a52000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb3f6a51000
arch_prctl(ARCH_SET_FS, 0x7fb3f6a52700) = 0
mprotect(0x31a0989000, 16384, PROT_READ) = 0
mprotect(0x31a1017000, 4096, PROT_READ) = 0
mprotect(0x31a041f000, 4096, PROT_READ) = 0
munmap(0x7fb3f6a54000, 66956)           = 0
set_tid_address(0x7fb3f6a529d0)         = 13069
set_robust_list(0x7fb3f6a529e0, 0x18)   = 0
futex(0x7fffb15785cc, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0x7fffb15785cc, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1, NULL, 7fb3f6a52700) = -1 EAGAIN (Resource temporarily unavailable)
rt_sigaction(SIGRTMIN, {0x31a0e05ae0, [], SA_RESTORER|SA_SIGINFO, 0x31a0e0f500}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {0x31a0e05b70, [], SA_RESTORER|SA_RESTART|SA_SIGINFO, 0x31a0e0f500}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=10240*1024, rlim_max=RLIM_INFINITY}) = 0
mmap(NULL, 2101248, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb3f6850000
brk(0)                                  = 0x1946000
brk(0x1967000)                          = 0x1967000
open("/usr/local/authz/var/openldap-data/authorise-test/lock.mdb", O_RDWR|O_CREAT, 0) = 3
fcntl(3, F_SETLK, {type=F_WRLCK, whence=SEEK_SET, start=0, len=1}) = -1 EAGAIN (Resource temporarily unavailable)
fcntl(3, F_SETLKW, {type=F_RDLCK, whence=SEEK_SET, start=0, len=1}) = 0
lseek(3, 0, SEEK_END)                   = 6272
mmap(NULL, 6272, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = 0x7fb3f6a63000
open("/usr/local/authz/var/openldap-data/authorise-test/data.mdb", O_RDONLY) = 4
read(4, "\0\0\0\0\0\0\0\0\0\0\10\0\0\0\0\0\336\300\357\276\1\0\0\0\0\0\0\0\0\0\0\0"..., 4096) = 4096
close(4)                                = 0
close(3)                                = 0
fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb3f6a62000
write(1, "mdb_env_open failed, error 22\n", 30mdb_env_open failed, error 22
) = 30
exit_group(1)                           = ?
[root@birch tmp]# 

Any ideas and apologies if this isn't the appropriate place to ask about this.


/****************************

Mark R Cairney
ITI UNIX Section
Information Services

Tel: 0131 650 6565
Email: Mark.Cairney@ed.ac.uk

****************************/


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