You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
276 lines
6.6 KiB
276 lines
6.6 KiB
/* mdb_stat.c - memory-mapped database status tool */
|
|
/*
|
|
* Copyright 2011-2021 Howard Chu, Symas Corp.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted only as authorized by the OpenLDAP
|
|
* Public License.
|
|
*
|
|
* A copy of this license is available in the file LICENSE in the
|
|
* top-level directory of the distribution or, alternatively, at
|
|
* <http://www.OpenLDAP.org/license.html>.
|
|
*/
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include "lmdb.h"
|
|
#include "module.h"
|
|
|
|
#define Z MDB_FMT_Z
|
|
#define Yu MDB_PRIy(u)
|
|
|
|
static void prstat(MDB_stat *ms)
|
|
{
|
|
printf(" Page size: %u\n", ms->ms_psize);
|
|
printf(" Tree depth: %u\n", ms->ms_depth);
|
|
printf(" Branch pages: %"Yu"\n", ms->ms_branch_pages);
|
|
printf(" Leaf pages: %"Yu"\n", ms->ms_leaf_pages);
|
|
printf(" Overflow pages: %"Yu"\n", ms->ms_overflow_pages);
|
|
printf(" Entries: %"Yu"\n", ms->ms_entries);
|
|
}
|
|
|
|
static void usage(char *prog)
|
|
{
|
|
fprintf(stderr, "usage: %s [-V] [-n] [-e] [-r[r]] [-f[f[f]]] [-v] [-m module [-w password]] [-a|-s subdb] dbpath\n", prog);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
int i, rc;
|
|
MDB_env *env;
|
|
MDB_txn *txn;
|
|
MDB_dbi dbi;
|
|
MDB_stat mst;
|
|
MDB_envinfo mei;
|
|
char *prog = argv[0];
|
|
char *envname;
|
|
char *subname = NULL;
|
|
int alldbs = 0, envinfo = 0, envflags = 0, freinfo = 0, rdrinfo = 0;
|
|
char *module = NULL, *password = NULL, *errmsg;
|
|
void *mlm = NULL;
|
|
|
|
if (argc < 2) {
|
|
usage(prog);
|
|
}
|
|
|
|
/* -a: print stat of main DB and all subDBs
|
|
* -s: print stat of only the named subDB
|
|
* -e: print env info
|
|
* -f: print freelist info
|
|
* -r: print reader info
|
|
* -n: use NOSUBDIR flag on env_open
|
|
* -v: use previous snapshot
|
|
* -V: print version and exit
|
|
* (default) print stat of only the main DB
|
|
*/
|
|
while ((i = getopt(argc, argv, "Vaefm:nrs:vw:")) != EOF) {
|
|
switch(i) {
|
|
case 'V':
|
|
printf("%s\n", MDB_VERSION_STRING);
|
|
exit(0);
|
|
break;
|
|
case 'a':
|
|
if (subname)
|
|
usage(prog);
|
|
alldbs++;
|
|
break;
|
|
case 'e':
|
|
envinfo++;
|
|
break;
|
|
case 'f':
|
|
freinfo++;
|
|
break;
|
|
case 'n':
|
|
envflags |= MDB_NOSUBDIR;
|
|
break;
|
|
case 'v':
|
|
envflags |= MDB_PREVSNAPSHOT;
|
|
break;
|
|
case 'r':
|
|
rdrinfo++;
|
|
break;
|
|
case 's':
|
|
if (alldbs)
|
|
usage(prog);
|
|
subname = optarg;
|
|
break;
|
|
case 'm':
|
|
module = optarg;
|
|
break;
|
|
case 'w':
|
|
password = optarg;
|
|
break;
|
|
default:
|
|
usage(prog);
|
|
}
|
|
}
|
|
|
|
if (optind != argc - 1)
|
|
usage(prog);
|
|
|
|
envname = argv[optind];
|
|
rc = mdb_env_create(&env);
|
|
if (rc) {
|
|
fprintf(stderr, "mdb_env_create failed, error %d %s\n", rc, mdb_strerror(rc));
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
if (module) {
|
|
mlm = mlm_setup(env, module, password, &errmsg);
|
|
if (!mlm) {
|
|
fprintf(stderr, "Failed to load crypto module: %s\n", errmsg);
|
|
goto env_close;
|
|
}
|
|
}
|
|
|
|
if (alldbs || subname) {
|
|
mdb_env_set_maxdbs(env, 4);
|
|
}
|
|
|
|
rc = mdb_env_open(env, envname, envflags | MDB_RDONLY, 0664);
|
|
if (rc) {
|
|
fprintf(stderr, "mdb_env_open failed, error %d %s\n", rc, mdb_strerror(rc));
|
|
goto env_close;
|
|
}
|
|
|
|
if (envinfo) {
|
|
(void)mdb_env_stat(env, &mst);
|
|
(void)mdb_env_info(env, &mei);
|
|
printf("Environment Info\n");
|
|
printf(" Map address: %p\n", mei.me_mapaddr);
|
|
printf(" Map size: %"Yu"\n", mei.me_mapsize);
|
|
printf(" Page size: %u\n", mst.ms_psize);
|
|
printf(" Max pages: %"Yu"\n", mei.me_mapsize / mst.ms_psize);
|
|
printf(" Number of pages used: %"Yu"\n", mei.me_last_pgno+1);
|
|
printf(" Last transaction ID: %"Yu"\n", mei.me_last_txnid);
|
|
printf(" Max readers: %u\n", mei.me_maxreaders);
|
|
printf(" Number of readers used: %u\n", mei.me_numreaders);
|
|
}
|
|
|
|
if (rdrinfo) {
|
|
printf("Reader Table Status\n");
|
|
rc = mdb_reader_list(env, (MDB_msg_func *)fputs, stdout);
|
|
if (rdrinfo > 1) {
|
|
int dead;
|
|
mdb_reader_check(env, &dead);
|
|
printf(" %d stale readers cleared.\n", dead);
|
|
rc = mdb_reader_list(env, (MDB_msg_func *)fputs, stdout);
|
|
}
|
|
if (!(subname || alldbs || freinfo))
|
|
goto env_close;
|
|
}
|
|
|
|
rc = mdb_txn_begin(env, NULL, MDB_RDONLY, &txn);
|
|
if (rc) {
|
|
fprintf(stderr, "mdb_txn_begin failed, error %d %s\n", rc, mdb_strerror(rc));
|
|
goto env_close;
|
|
}
|
|
|
|
if (freinfo) {
|
|
MDB_cursor *cursor;
|
|
MDB_val key, data;
|
|
mdb_size_t pages = 0, *iptr;
|
|
|
|
printf("Freelist Status\n");
|
|
dbi = 0;
|
|
rc = mdb_cursor_open(txn, dbi, &cursor);
|
|
if (rc) {
|
|
fprintf(stderr, "mdb_cursor_open failed, error %d %s\n", rc, mdb_strerror(rc));
|
|
goto txn_abort;
|
|
}
|
|
rc = mdb_stat(txn, dbi, &mst);
|
|
if (rc) {
|
|
fprintf(stderr, "mdb_stat failed, error %d %s\n", rc, mdb_strerror(rc));
|
|
goto txn_abort;
|
|
}
|
|
prstat(&mst);
|
|
while ((rc = mdb_cursor_get(cursor, &key, &data, MDB_NEXT)) == 0) {
|
|
iptr = data.mv_data;
|
|
pages += *iptr;
|
|
if (freinfo > 1) {
|
|
char *bad = "";
|
|
mdb_size_t pg, prev;
|
|
ssize_t i, j, span = 0;
|
|
j = *iptr++;
|
|
for (i = j, prev = 1; --i >= 0; ) {
|
|
pg = iptr[i];
|
|
if (pg <= prev)
|
|
bad = " [bad sequence]";
|
|
prev = pg;
|
|
pg += span;
|
|
for (; i >= span && iptr[i-span] == pg; span++, pg++) ;
|
|
}
|
|
printf(" Transaction %"Yu", %"Z"d pages, maxspan %"Z"d%s\n",
|
|
*(mdb_size_t *)key.mv_data, j, span, bad);
|
|
if (freinfo > 2) {
|
|
for (--j; j >= 0; ) {
|
|
pg = iptr[j];
|
|
for (span=1; --j >= 0 && iptr[j] == pg+span; span++) ;
|
|
printf(span>1 ? " %9"Yu"[%"Z"d]\n" : " %9"Yu"\n",
|
|
pg, span);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
mdb_cursor_close(cursor);
|
|
printf(" Free pages: %"Yu"\n", pages);
|
|
}
|
|
|
|
rc = mdb_dbi_open(txn, subname, 0, &dbi);
|
|
if (rc) {
|
|
fprintf(stderr, "mdb_dbi_open failed, error %d %s\n", rc, mdb_strerror(rc));
|
|
goto txn_abort;
|
|
}
|
|
|
|
rc = mdb_stat(txn, dbi, &mst);
|
|
if (rc) {
|
|
fprintf(stderr, "mdb_stat failed, error %d %s\n", rc, mdb_strerror(rc));
|
|
goto txn_abort;
|
|
}
|
|
printf("Status of %s\n", subname ? subname : "Main DB");
|
|
prstat(&mst);
|
|
|
|
if (alldbs) {
|
|
MDB_cursor *cursor;
|
|
MDB_val key;
|
|
|
|
rc = mdb_cursor_open(txn, dbi, &cursor);
|
|
if (rc) {
|
|
fprintf(stderr, "mdb_cursor_open failed, error %d %s\n", rc, mdb_strerror(rc));
|
|
goto txn_abort;
|
|
}
|
|
while ((rc = mdb_cursor_get(cursor, &key, NULL, MDB_NEXT_NODUP)) == 0) {
|
|
MDB_dbi db2;
|
|
if (!mdb_cursor_is_db(cursor))
|
|
continue;
|
|
rc = mdb_dbi_open(txn, key.mv_data, 0, &db2);
|
|
if (rc == MDB_SUCCESS)
|
|
printf("Status of %s\n", (char *)key.mv_data);
|
|
if (rc) continue;
|
|
rc = mdb_stat(txn, db2, &mst);
|
|
if (rc) {
|
|
fprintf(stderr, "mdb_stat failed, error %d %s\n", rc, mdb_strerror(rc));
|
|
goto txn_abort;
|
|
}
|
|
prstat(&mst);
|
|
mdb_dbi_close(env, db2);
|
|
}
|
|
mdb_cursor_close(cursor);
|
|
}
|
|
|
|
if (rc == MDB_NOTFOUND)
|
|
rc = MDB_SUCCESS;
|
|
|
|
mdb_dbi_close(env, dbi);
|
|
txn_abort:
|
|
mdb_txn_abort(txn);
|
|
env_close:
|
|
mdb_env_close(env);
|
|
if (mlm)
|
|
mlm_unload(mlm);
|
|
|
|
return rc ? EXIT_FAILURE : EXIT_SUCCESS;
|
|
}
|
|
|