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/** BEGIN COPYRIGHT BLOCK
* Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
* Copyright (C) 2005 Red Hat, Inc.
* All rights reserved.
* END COPYRIGHT BLOCK **/
/* monitor.c - ldbm backend monitor function */
#include "back-ldbm.h"
#include "dblayer.h" /* XXXmcs: not sure this is good to do... */
#include <sys/stat.h>
#define MSET(_attr) do { \
val.bv_val = buf; \
val.bv_len = strlen(buf); \
attrlist_replace(&e->e_attrs, (_attr), vals); \
} while (0)
#define MSETF(_attr, _x) do { \
char tmp_atype[37]; \
PR_snprintf(tmp_atype, sizeof(tmp_atype), _attr, _x); \
MSET(tmp_atype); \
} while (0)
/* DSE callback to monitor stats for a particular instance */
int ldbm_back_monitor_instance_search(Slapi_PBlock *pb, Slapi_Entry *e,
Slapi_Entry *entryAfter, int *returncode, char *returntext, void *arg)
{
ldbm_instance *inst = (ldbm_instance *)arg;
struct ldbminfo *li = NULL;
struct berval val;
struct berval *vals[2];
char buf[BUFSIZ];
u_long hits, tries;
long nentries,maxentries;
size_t size,maxsize;
/* NPCTE fix for bugid 544365, esc 0. <P.R> <04-Jul-2001> */
struct stat astat;
/* end of NPCTE fix for bugid 544365 */
DB_MPOOL_FSTAT **mpfstat = NULL;
int i,j;
char *absolute_pathname = NULL;
/* Get the LDBM Info structure for the ldbm backend */
if (inst->inst_be->be_database == NULL) {
*returncode= LDAP_OPERATIONS_ERROR;
return SLAPI_DSE_CALLBACK_ERROR;
}
li = (struct ldbminfo *)inst->inst_be->be_database->plg_private;
if (li == NULL) {
*returncode= LDAP_OPERATIONS_ERROR;
return SLAPI_DSE_CALLBACK_ERROR;
}
if (inst->inst_be->be_state != BE_STATE_STARTED)
{
*returncode = LDAP_SUCCESS;
return SLAPI_DSE_CALLBACK_OK;
}
vals[0] = &val;
vals[1] = NULL;
/* database name */
PR_snprintf(buf, sizeof(buf), "%s", li->li_plugin->plg_name);
MSET("database");
/* read-only status */
PR_snprintf( buf, sizeof(buf), "%d", inst->inst_be->be_readonly );
MSET("readOnly");
/* fetch cache statistics */
cache_get_stats(&(inst->inst_cache), &hits, &tries,
&nentries, &maxentries, &size, &maxsize);
sprintf(buf, "%lu", hits);
MSET("entryCacheHits");
sprintf(buf, "%lu", tries);
MSET("entryCacheTries");
sprintf(buf, "%lu", (unsigned long)(100.0*(double)hits / (double)(tries > 0 ? tries : 1)));
MSET("entryCacheHitRatio");
sprintf(buf, "%lu", size);
MSET("currentEntryCacheSize");
sprintf(buf, "%lu", maxsize);
MSET("maxEntryCacheSize");
sprintf(buf, "%ld", nentries);
MSET("currentEntryCacheCount");
sprintf(buf, "%ld", maxentries);
MSET("maxEntryCacheCount");
#ifdef DEBUG
{
/* debugging for hash statistics */
char *x;
cache_debug_hash(&(inst->inst_cache), &x);
val.bv_val = x;
val.bv_len = strlen(x);
attrlist_replace(&e->e_attrs, "entrycache-hashtables", vals);
slapi_ch_free((void **)&x);
}
#endif
if (dblayer_memp_stat(li, NULL, &mpfstat) != 0) {
*returncode = LDAP_OPERATIONS_ERROR;
return SLAPI_DSE_CALLBACK_ERROR;
}
for (i = 0;(mpfstat[i] && (mpfstat[i]->file_name != NULL)); i++) {
#ifdef _WIN32
int fpos = 0;
#endif
/* only print out stats on files used by this instance */
if (strlen(mpfstat[i]->file_name) < strlen(inst->inst_dir_name))
continue;
if (strncmp(mpfstat[i]->file_name, inst->inst_dir_name,
strlen(inst->inst_dir_name)) != 0)
continue;
/* Since the filenames are now relative, we need to construct an absolute version
* for the purpose of stat() etc below...
*/
slapi_ch_free_string(&absolute_pathname);
absolute_pathname = slapi_ch_smprintf("%s%c%s" , inst->inst_parent_dir_name, get_sep(inst->inst_parent_dir_name), mpfstat[i]->file_name );
/* NPCTE fix for bugid 544365, esc 0. <P.R> <04-Jul-2001> */
/* Hide statistic of deleted files (mainly indexes) */
if (stat(absolute_pathname,&astat))
continue;
/* If the file has been re-created after been deleted
* We should show only statistics for the last instance
* Since SleepyCat returns the statistic of the last open file first,
* we should only display the first statistic record for a given file
*/
for (j=0;j<i;j++)
if (!strcmp(mpfstat[i]->file_name,mpfstat[j]->file_name))
break;
if (j<i)
continue;
/* end of NPCTE fix for bugid 544365 */
/* Get each file's stats */
PR_snprintf(buf, sizeof(buf), "%s", mpfstat[i]->file_name);
#ifdef _WIN32
/*
* For NT, switch the last
* backslash to a foward
* slash. - RJP
*/
for (fpos = strlen(buf); fpos >= 0; fpos--) {
if (buf[fpos] == '\\') {
buf[fpos] = '/';
break;
}
}
#endif
MSETF("dbFilename-%d", i);
sprintf(buf, "%u", mpfstat[i]->st_cache_hit);
MSETF("dbFileCacheHit-%d", i);
sprintf(buf, "%u", mpfstat[i]->st_cache_miss);
MSETF("dbFileCacheMiss-%d", i);
sprintf(buf, "%u", mpfstat[i]->st_page_in);
MSETF("dbFilePageIn-%d", i);
sprintf(buf, "%u", mpfstat[i]->st_page_out);
MSETF("dbFilePageOut-%d", i);
slapi_ch_free_string(&absolute_pathname);
}
slapi_ch_free_string(&absolute_pathname);
#if 1000*DB_VERSION_MAJOR + 100*DB_VERSION_MINOR + DB_VERSION_PATCH <= 3204
/* In DB 3.2.4 and earlier, we need to free each element */
for (i = 0; mpfstat[i]; i++)
free(mpfstat[i]);
#endif
free(mpfstat);
*returncode = LDAP_SUCCESS;
return SLAPI_DSE_CALLBACK_OK;
}
/* monitor global ldbm stats */
int ldbm_back_monitor_search(Slapi_PBlock *pb, Slapi_Entry *e,
Slapi_Entry *entryAfter, int *returncode, char *returntext, void *arg)
{
struct ldbminfo *li = (struct ldbminfo *)arg;
struct berval val;
struct berval *vals[2];
char buf[BUFSIZ];
DB_MPOOL_STAT *mpstat = NULL;
DB_MPOOL_FSTAT **mpfstat = NULL;
u_int32_t cache_tries;
vals[0] = &val;
vals[1] = NULL;
/* database name */
PR_snprintf(buf, sizeof(buf), "%s", li->li_plugin->plg_name);
MSET("database");
/* we have to ask for file stats in order to get correct global stats */
if (dblayer_memp_stat(li, &mpstat, &mpfstat) != 0) {
*returncode = LDAP_OPERATIONS_ERROR;
return SLAPI_DSE_CALLBACK_ERROR;
}
/* cache hits*/
sprintf(buf, "%u", mpstat->st_cache_hit);
MSET("dbCacheHits");
/* cache tries*/
cache_tries = (mpstat->st_cache_miss + mpstat->st_cache_hit);
sprintf(buf, "%u", cache_tries);
MSET("dbCacheTries");
/* cache hit ratio*/
sprintf(buf, "%lu", (unsigned long)(100.0 * (double)mpstat->st_cache_hit / (double)(cache_tries > 0 ? cache_tries : 1) ));
MSET("dbCacheHitRatio");
sprintf(buf, "%u", mpstat->st_page_in);
MSET("dbCachePageIn");
sprintf(buf, "%u", mpstat->st_page_out);
MSET("dbCachePageOut");
sprintf(buf, "%u", mpstat->st_ro_evict);
MSET("dbCacheROEvict");
sprintf(buf, "%u", mpstat->st_rw_evict);
MSET("dbCacheRWEvict");
free(mpstat);
if (mpfstat) {
#if 1000*DB_VERSION_MAJOR + 100*DB_VERSION_MINOR + DB_VERSION_PATCH <= 3204
/* In DB 3.2.4 and earlier, we need to free each element */
int i;
for (i = 0; mpfstat[i]; i++)
free(mpfstat[i]);
#endif
free(mpfstat);
}
*returncode = LDAP_SUCCESS;
return SLAPI_DSE_CALLBACK_OK;
}
/* monitor global ldbm database stats */
int
ldbm_back_dbmonitor_search(Slapi_PBlock *pb, Slapi_Entry *e,
Slapi_Entry *entryAfter, int *returncode, char *returntext, void *arg)
{
dblayer_private *dbpriv = NULL;
struct ldbminfo *li = NULL;
PR_ASSERT(NULL != arg);
li = (struct ldbminfo*)arg;
dbpriv = (dblayer_private*)li->li_dblayer_private;
PR_ASSERT(NULL != dbpriv);
perfctrs_as_entry( e, dbpriv->perf_private, dbpriv->dblayer_env->dblayer_DB_ENV);
*returncode = LDAP_SUCCESS;
return SLAPI_DSE_CALLBACK_OK;
}
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