diff options
Diffstat (limited to 'libglusterfs/src')
| -rw-r--r-- | libglusterfs/src/statedump.c | 125 | ||||
| -rw-r--r-- | libglusterfs/src/statedump.h | 9 |
2 files changed, 119 insertions, 15 deletions
diff --git a/libglusterfs/src/statedump.c b/libglusterfs/src/statedump.c index 1158a2d82e5..8eac728721c 100644 --- a/libglusterfs/src/statedump.c +++ b/libglusterfs/src/statedump.c @@ -80,6 +80,45 @@ gf_proc_dump_close (void) gf_dump_fd = -1; } +static int +gf_proc_dump_set_path (char *dump_options_file) +{ + int ret = -1; + FILE *fp = NULL; + char buf[256]; + char *key = NULL, *value = NULL; + char *saveptr = NULL; + + fp = fopen (dump_options_file, "r"); + if (!fp) + goto out; + + 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; + } + if (!strcmp (key, "path")) { + dump_options.dump_path = gf_strdup (value); + break; + } + } + +out: + if (fp) + fclose (fp); + return ret; +} int gf_proc_dump_add_section (char *key, ...) @@ -489,6 +528,44 @@ gf_proc_dump_enable_all_options () return 0; } +gf_boolean_t +is_gf_proc_dump_all_disabled () +{ + gf_boolean_t all_disabled = _gf_true; + + GF_CHECK_DUMP_OPTION_ENABLED (dump_options.dump_mem, all_disabled, out); + GF_CHECK_DUMP_OPTION_ENABLED (dump_options.dump_iobuf, all_disabled, out); + GF_CHECK_DUMP_OPTION_ENABLED (dump_options.dump_callpool, all_disabled, + out); + GF_CHECK_DUMP_OPTION_ENABLED (dump_options.xl_options.dump_priv, + all_disabled, out); + GF_CHECK_DUMP_OPTION_ENABLED (dump_options.xl_options.dump_inode, + all_disabled, out); + GF_CHECK_DUMP_OPTION_ENABLED (dump_options.xl_options.dump_fd, + all_disabled, out); + GF_CHECK_DUMP_OPTION_ENABLED (dump_options.xl_options.dump_inodectx, + all_disabled, out); + GF_CHECK_DUMP_OPTION_ENABLED (dump_options.xl_options.dump_fdctx, + all_disabled, out); + GF_CHECK_DUMP_OPTION_ENABLED (dump_options.xl_options.dump_history, + all_disabled, out); + +out: + return all_disabled; +} + +/* These options are dumped by default if /tmp/glusterdump.options + file exists and it is emtpty +*/ +static int +gf_proc_dump_enable_default_options () +{ + GF_PROC_DUMP_SET_OPTION (dump_options.dump_mem, _gf_true); + GF_PROC_DUMP_SET_OPTION (dump_options.dump_callpool, _gf_true); + + return 0; +} + static int gf_proc_dump_disable_all_options () { @@ -567,28 +644,43 @@ 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; char dump_option_file[PATH_MAX]; + /* glusterd will create a file /tmp/glusterdump.<pid>.options and + sets the statedump options for the process and the file is removed + after the statedump is taken. Direct issue of SIGUSR1 does not have + mechanism for considering the statedump options. So to have a way + of configuring the statedump of all the glusterfs processes through + both cli command and SIGUSR1, /tmp/glusterdump.options file + is searched and the options mentioned in it are given the higher + priority. + */ snprintf (dump_option_file, sizeof (dump_option_file), - "/tmp/glusterdump.%d.options", getpid ()); - + "/tmp/glusterdump.options"); fp = fopen (dump_option_file, "r"); - if (!fp) { - //ENOENT, return success - (void) gf_proc_dump_enable_all_options (); - return 0; + snprintf (dump_option_file, sizeof (dump_option_file), + "/tmp/glusterdump.%d.options", getpid ()); + + fp = fopen (dump_option_file, "r"); + + if (!fp) { + //ENOENT, return success + (void) gf_proc_dump_enable_all_options (); + return 0; + } } (void) gf_proc_dump_disable_all_options (); + // swallow the errors if setting statedump file path is failed. + ret = gf_proc_dump_set_path (dump_option_file); + ret = fscanf (fp, "%s", buf); while (ret != EOF) { - key = strtok_r (buf, "=", &saveptr); if (!key) { ret = fscanf (fp, "%s", buf); @@ -602,20 +694,18 @@ gf_proc_dump_options_init () continue; } - snprintf (dumpbuf, sizeof (dumpbuf), "[Debug]:key=%s, value=%s\n",key,value); - ret = write (gf_dump_fd, dumpbuf, strlen (dumpbuf)); - gf_proc_dump_parse_set_option (key, value); - } + if (is_gf_proc_dump_all_disabled ()) + (void) gf_proc_dump_enable_default_options (); + if (fp) fclose (fp); return 0; } - void gf_proc_dump_info (int signum, glusterfs_ctx_t *ctx) { @@ -637,11 +727,14 @@ gf_proc_dump_info (int signum, glusterfs_ctx_t *ctx) } else strncpy (brick_name, "glusterdump", sizeof (brick_name)); - ret = gf_proc_dump_open (ctx->statedump_path, brick_name); + ret = gf_proc_dump_options_init (); if (ret < 0) goto out; - ret = gf_proc_dump_options_init (); + if (dump_options.dump_path) + ret = gf_proc_dump_open (dump_options.dump_path, brick_name); + else + ret = gf_proc_dump_open (ctx->statedump_path, brick_name); if (ret < 0) goto out; @@ -710,6 +803,8 @@ gf_proc_dump_info (int signum, glusterfs_ctx_t *ctx) out: if (gf_dump_fd != -1) gf_proc_dump_close (); + GF_FREE (dump_options.dump_path); + dump_options.dump_path = NULL; gf_proc_dump_unlock (); return; diff --git a/libglusterfs/src/statedump.h b/libglusterfs/src/statedump.h index 03648ddd9bd..8342b120ada 100644 --- a/libglusterfs/src/statedump.h +++ b/libglusterfs/src/statedump.h @@ -31,6 +31,7 @@ typedef struct gf_dump_options_ { gf_boolean_t dump_iobuf; gf_boolean_t dump_callpool; gf_dump_xl_options_t xl_options; //options for all xlators + char *dump_path; } gf_dump_options_t; extern gf_dump_options_t dump_options; @@ -55,6 +56,14 @@ void _gf_proc_dump_build_key (char *key, const char *prefix, char *fmt,...) #define GF_PROC_DUMP_SET_OPTION(opt,val) opt = val +#define GF_CHECK_DUMP_OPTION_ENABLED(option_dump, var, label) \ + do { \ + if (option_dump == _gf_true) { \ + var = _gf_false; \ + goto label; \ + } \ + } while (0); + void gf_proc_dump_init(); void gf_proc_dump_fini(void); |