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/*
Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com>
This file is part of GlusterFS.
GlusterFS is free software; you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published
by the Free Software Foundation; either version 3 of the License,
or (at your option) any later version.
GlusterFS is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see
<http://www.gnu.org/licenses/>.
*/
#include <stdarg.h>
#include "glusterfs.h"
#include "logging.h"
#include "iobuf.h"
#include "statedump.h"
#include "stack.h"
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif /* MALLOC_H */
#define GF_PROC_DUMP_IS_OPTION_ENABLED(opt) \
(dump_options.dump_##opt == _gf_true)
#define GF_PROC_DUMP_IS_XL_OPTION_ENABLED(opt)\
(dump_options.xl_options.dump_##opt == _gf_true)
extern xlator_t global_xlator;
static pthread_mutex_t gf_proc_dump_mutex;
static int gf_dump_fd = -1;
gf_dump_options_t dump_options;
static void
gf_proc_dump_lock (void)
{
pthread_mutex_lock (&gf_proc_dump_mutex);
}
static void
gf_proc_dump_unlock (void)
{
pthread_mutex_unlock (&gf_proc_dump_mutex);
}
static int
gf_proc_dump_open (void)
{
char path[256];
int dump_fd = -1;
memset (path, 0, sizeof (path));
snprintf (path, sizeof (path), "%s.%d", GF_DUMP_LOGFILE_ROOT, getpid ());
dump_fd = open (path, O_CREAT|O_RDWR|O_TRUNC|O_APPEND, 0600);
if (dump_fd < 0)
return -1;
gf_dump_fd = dump_fd;
return 0;
}
static void
gf_proc_dump_close (void)
{
close (gf_dump_fd);
gf_dump_fd = -1;
}
void
gf_proc_dump_add_section (char *key, ...)
{
char buf[GF_DUMP_MAX_BUF_LEN];
va_list ap;
int ret;
GF_ASSERT(key);
memset (buf, 0, sizeof(buf));
snprintf (buf, GF_DUMP_MAX_BUF_LEN, "\n[");
va_start (ap, key);
vsnprintf (buf + strlen(buf),
GF_DUMP_MAX_BUF_LEN - strlen (buf), key, ap);
va_end (ap);
snprintf (buf + strlen(buf),
GF_DUMP_MAX_BUF_LEN - strlen (buf), "]\n");
ret = write (gf_dump_fd, buf, strlen (buf));
}
void
gf_proc_dump_write (char *key, char *value,...)
{
char buf[GF_DUMP_MAX_BUF_LEN];
int offset = 0;
va_list ap;
int ret;
GF_ASSERT (key);
offset = strlen (key);
memset (buf, 0, GF_DUMP_MAX_BUF_LEN);
snprintf (buf, GF_DUMP_MAX_BUF_LEN, "%s", key);
snprintf (buf + offset, GF_DUMP_MAX_BUF_LEN - offset, "=");
offset += 1;
va_start (ap, value);
vsnprintf (buf + offset, GF_DUMP_MAX_BUF_LEN - offset, value, ap);
va_end (ap);
offset = strlen (buf);
snprintf (buf + offset, GF_DUMP_MAX_BUF_LEN - offset, "\n");
ret = write (gf_dump_fd, buf, strlen (buf));
}
static void
gf_proc_dump_xlator_mem_info (xlator_t *xl)
{
char key[GF_DUMP_MAX_BUF_LEN];
char prefix[GF_DUMP_MAX_BUF_LEN];
int i = 0;
struct mem_acct rec = {0,};
if (!xl)
return;
if (!xl->mem_acct.rec)
return;
gf_proc_dump_add_section ("%s.%s - Memory usage", xl->type,xl->name);
gf_proc_dump_write ("num_types", "%d", xl->mem_acct.num_types);
for (i = 0; i < xl->mem_acct.num_types; i++) {
if (!(memcmp (&xl->mem_acct.rec[i], &rec,
sizeof (struct mem_acct))))
continue;
gf_proc_dump_add_section ("%s.%s - usage-type %d", xl->type,
xl->name,i);
gf_proc_dump_build_key (prefix, "memusage", "%s.%s.type.%d",
xl->type, xl->name, i);
gf_proc_dump_build_key (key, prefix, "size");
gf_proc_dump_write (key, "%u", xl->mem_acct.rec[i].size);
gf_proc_dump_build_key (key, prefix, "num_allocs");
gf_proc_dump_write (key, "%u", xl->mem_acct.rec[i].num_allocs);
gf_proc_dump_build_key (key, prefix, "max_size");
gf_proc_dump_write (key, "%u", xl->mem_acct.rec[i].max_size);
gf_proc_dump_build_key (key, prefix, "max_num_allocs");
gf_proc_dump_write (key, "%u", xl->mem_acct.rec[i].max_num_allocs);
}
return;
}
/* Currently this dumps only mallinfo. More can be built on here */
void
gf_proc_dump_mem_info ()
{
#ifdef HAVE_MALLOC_STATS
struct mallinfo info;
memset (&info, 0, sizeof (struct mallinfo));
info = mallinfo ();
gf_proc_dump_add_section ("mallinfo");
gf_proc_dump_write ("mallinfo_arena", "%d", info.arena);
gf_proc_dump_write ("mallinfo_ordblks", "%d", info.ordblks);
gf_proc_dump_write ("mallinfo_smblks", "%d", info.smblks);
gf_proc_dump_write ("mallinfo_hblks", "%d", info.hblks);
gf_proc_dump_write ("mallinfo_hblkhd", "%d", info.hblkhd);
gf_proc_dump_write ("mallinfo_usmblks", "%d", info.usmblks);
gf_proc_dump_write ("mallinfo_fsmblks", "%d", info.fsmblks);
gf_proc_dump_write ("mallinfo_uordblks", "%d", info.uordblks);
gf_proc_dump_write ("mallinfo_fordblks", "%d", info.fordblks);
gf_proc_dump_write ("mallinfo_keepcost", "%d", info.keepcost);
#endif
gf_proc_dump_xlator_mem_info(&global_xlator);
}
void gf_proc_dump_latency_info (xlator_t *xl);
void
gf_proc_dump_xlator_info (xlator_t *this_xl)
{
glusterfs_ctx_t *ctx = NULL;
xlator_t *fuse_xlator, *this_xlator;
if (!this_xl)
return;
ctx = glusterfs_ctx_get ();
if (!ctx)
return;
if (ctx->master){
fuse_xlator = (xlator_t *) ctx->master;
if (!fuse_xlator->dumpops)
return;
if (fuse_xlator->dumpops->priv &&
GF_PROC_DUMP_IS_XL_OPTION_ENABLED (priv))
fuse_xlator->dumpops->priv (fuse_xlator);
if (fuse_xlator->dumpops->inode &&
GF_PROC_DUMP_IS_XL_OPTION_ENABLED (inode)) {
if (!ctx->active)
return;
this_xlator = (xlator_t *) ctx->active->top;
if (this_xlator && this_xlator->itable)
inode_table_dump (this_xlator->itable,
"xlator.mount.fuse.itable");
else
return;
}
if (fuse_xlator->dumpops->fd &&
GF_PROC_DUMP_IS_XL_OPTION_ENABLED (fd))
fuse_xlator->dumpops->fd (fuse_xlator);
}
while (this_xl) {
if (ctx->measure_latency)
gf_proc_dump_latency_info (this_xl);
gf_proc_dump_xlator_mem_info(this_xl);
if (!this_xl->dumpops) {
this_xl = this_xl->next;
continue;
}
if (this_xl->dumpops->priv &&
GF_PROC_DUMP_IS_XL_OPTION_ENABLED (priv))
this_xl->dumpops->priv (this_xl);
if (this_xl->dumpops->inode &&
GF_PROC_DUMP_IS_XL_OPTION_ENABLED (inode))
this_xl->dumpops->inode (this_xl);
if (this_xl->dumpops->fd &&
GF_PROC_DUMP_IS_XL_OPTION_ENABLED (fd))
this_xl->dumpops->fd (this_xl);
this_xl = this_xl->next;
}
return;
}
static int
gf_proc_dump_parse_set_option (char *key, char *value)
{
gf_boolean_t *opt_key = NULL;
gf_boolean_t opt_value = _gf_false;
char buf[GF_DUMP_MAX_BUF_LEN];
if (!strncasecmp (key, "mem", 3)) {
opt_key = &dump_options.dump_mem;
} else if (!strncasecmp (key, "iobuf", 5)) {
opt_key = &dump_options.dump_iobuf;
} else if (!strncasecmp (key, "callpool", 8)) {
opt_key = &dump_options.dump_callpool;
} else if (!strncasecmp (key, "priv", 4)) {
opt_key = &dump_options.xl_options.dump_priv;
} else if (!strncasecmp (key, "fd", 2)) {
opt_key = &dump_options.xl_options.dump_fd;
} else if (!strncasecmp (key, "inode", 5)) {
opt_key = &dump_options.xl_options.dump_inode;
} else if (!strncasecmp (key, "inodectx", strlen ("inodectx"))) {
opt_key = &dump_options.xl_options.dump_inodectx;
} else if (!strncasecmp (key, "fdctx", strlen ("fdctx"))) {
opt_key = &dump_options.xl_options.dump_fdctx;
}
if (!opt_key) {
//None of dump options match the key, return back
snprintf (buf, sizeof (buf), "[Warning]:None of the options "
"matched key : %s\n", key);
write (gf_dump_fd, buf, strlen (buf));
return -1;
}
opt_value = (strncasecmp (value, "yes", 3) ?
_gf_false: _gf_true);
GF_PROC_DUMP_SET_OPTION (*opt_key, opt_value);
return 0;
}
static int
gf_proc_dump_enable_all_options ()
{
GF_PROC_DUMP_SET_OPTION (dump_options.dump_mem, _gf_true);
GF_PROC_DUMP_SET_OPTION (dump_options.dump_iobuf, _gf_true);
GF_PROC_DUMP_SET_OPTION (dump_options.dump_callpool, _gf_true);
GF_PROC_DUMP_SET_OPTION (dump_options.xl_options.dump_priv, _gf_true);
GF_PROC_DUMP_SET_OPTION (dump_options.xl_options.dump_inode, _gf_true);
GF_PROC_DUMP_SET_OPTION (dump_options.xl_options.dump_fd, _gf_true);
GF_PROC_DUMP_SET_OPTION (dump_options.xl_options.dump_inodectx,
_gf_true);
GF_PROC_DUMP_SET_OPTION (dump_options.xl_options.dump_fdctx, _gf_true);
return 0;
}
static int
gf_proc_dump_disable_all_options ()
{
GF_PROC_DUMP_SET_OPTION (dump_options.dump_mem, _gf_false);
GF_PROC_DUMP_SET_OPTION (dump_options.dump_iobuf, _gf_false);
GF_PROC_DUMP_SET_OPTION (dump_options.dump_callpool, _gf_false);
GF_PROC_DUMP_SET_OPTION (dump_options.xl_options.dump_priv, _gf_false);
GF_PROC_DUMP_SET_OPTION (dump_options.xl_options.dump_inode,
_gf_false);
GF_PROC_DUMP_SET_OPTION (dump_options.xl_options.dump_fd, _gf_false);
GF_PROC_DUMP_SET_OPTION (dump_options.xl_options.dump_inodectx,
_gf_false);
GF_PROC_DUMP_SET_OPTION (dump_options.xl_options.dump_fdctx, _gf_false);
return 0;
}
static int
gf_proc_dump_options_init ()
{
int ret = -1;
FILE *fp = NULL;
char buf[256];
char dumpbuf[GF_DUMP_MAX_BUF_LEN];
char *key = NULL, *value = NULL;
char *saveptr = NULL;
fp = fopen (GF_DUMP_OPTIONFILE, "r");
if (!fp) {
//ENOENT, return success
(void) gf_proc_dump_enable_all_options ();
return 0;
}
(void) gf_proc_dump_disable_all_options ();
ret = fscanf (fp, "%s", buf);
while (ret != EOF) {
key = strtok_r (buf, "=", &saveptr);
if (!key) {
ret = fscanf (fp, "%s", buf);
continue;
}
value = strtok_r (NULL, "=", &saveptr);
if (!value) {
ret = fscanf (fp, "%s", buf);
continue;
}
snprintf (dumpbuf, sizeof (dumpbuf), "[Debug]:key=%s, value=%s\n",key,value);
write (gf_dump_fd, dumpbuf, strlen (dumpbuf));
gf_proc_dump_parse_set_option (key, value);
}
return 0;
}
void
gf_proc_dump_info (int signum)
{
int ret = -1;
glusterfs_ctx_t *ctx = NULL;
gf_proc_dump_lock ();
ret = gf_proc_dump_open ();
if (ret < 0)
goto out;
ret = gf_proc_dump_options_init ();
if (ret < 0)
goto out;
if (GF_PROC_DUMP_IS_OPTION_ENABLED (mem))
gf_proc_dump_mem_info ();
ctx = glusterfs_ctx_get ();
if (ctx) {
if (GF_PROC_DUMP_IS_OPTION_ENABLED (iobuf))
iobuf_stats_dump (ctx->iobuf_pool);
if (GF_PROC_DUMP_IS_OPTION_ENABLED (callpool))
gf_proc_dump_pending_frames (ctx->pool);
gf_proc_dump_xlator_info (ctx->active->top);
}
gf_proc_dump_close ();
out:
gf_proc_dump_unlock ();
return;
}
void
gf_proc_dump_fini (void)
{
pthread_mutex_destroy (&gf_proc_dump_mutex);
}
void
gf_proc_dump_init ()
{
pthread_mutex_init (&gf_proc_dump_mutex, NULL);
return;
}
void
gf_proc_dump_cleanup (void)
{
pthread_mutex_destroy (&gf_proc_dump_mutex);
}
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