diff options
Diffstat (limited to 'glusterfsd/src')
| -rw-r--r-- | glusterfsd/src/glusterfsd.c | 74 | ||||
| -rw-r--r-- | glusterfsd/src/glusterfsd.h | 4 |
2 files changed, 78 insertions, 0 deletions
diff --git a/glusterfsd/src/glusterfsd.c b/glusterfsd/src/glusterfsd.c index 219088025a0..e971426da93 100644 --- a/glusterfsd/src/glusterfsd.c +++ b/glusterfsd/src/glusterfsd.c @@ -115,6 +115,10 @@ static struct argp_option gf_options[] = { "[default: \"gluster-log\"]"}, {"log-format", ARGP_LOG_FORMAT, "LOG-FORMAT", 0, "Set log format, valid" " options are: no-msg-id and with-msg-id, [default: \"with-msg-id\"]"}, + {"log-buf-size", ARGP_LOG_BUF_SIZE, "LOG-BUF-SIZE", 0, "Set logging " + "buffer size, [default: 5]"}, + {"log-flush-timeout", ARGP_LOG_FLUSH_TIMEOUT, "LOG-FLUSH-TIMEOUT", 0, + "Set log flush timeout, [default: 2 minutes]"}, {0, 0, 0, 0, "Advanced Options:"}, {"volfile-server-port", ARGP_VOLFILE_SERVER_PORT_KEY, "PORT", 0, @@ -1110,6 +1114,37 @@ parse_opts (int key, char *arg, struct argp_state *state) break; + case ARGP_LOG_BUF_SIZE: + if (gf_string2uint32 (arg, &cmd_args->log_buf_size)) { + argp_failure (state, -1, 0, + "unknown log buf size option %s", arg); + } else if ((cmd_args->log_buf_size < GF_LOG_LRU_BUFSIZE_MIN) || + (cmd_args->log_buf_size > GF_LOG_LRU_BUFSIZE_MAX)) { + argp_failure (state, -1, 0, + "Invalid log buf size %s. " + "Valid range: [" + GF_LOG_LRU_BUFSIZE_MIN_STR"," + GF_LOG_LRU_BUFSIZE_MAX_STR"]", arg); + } + + break; + + case ARGP_LOG_FLUSH_TIMEOUT: + if (gf_string2uint32 (arg, &cmd_args->log_flush_timeout)) { + argp_failure (state, -1, 0, + "unknown log flush timeout option %s", arg); + } else if ((cmd_args->log_flush_timeout < + GF_LOG_FLUSH_TIMEOUT_MIN) || + (cmd_args->log_flush_timeout > + GF_LOG_FLUSH_TIMEOUT_MAX)) { + argp_failure (state, -1, 0, + "Invalid log flush timeout %s. " + "Valid range: [" + GF_LOG_FLUSH_TIMEOUT_MIN_STR"," + GF_LOG_FLUSH_TIMEOUT_MAX_STR"]", arg); + } + + break; } return 0; @@ -1127,6 +1162,23 @@ cleanup_and_exit (int signum) if (!ctx) return; + /* To take or not to take the mutex here and in the other + * signal handler - gf_print_trace() - is the big question here. + * + * Taking mutex in signal handler would mean that if the process + * receives a fatal signal while another thread is holding + * ctx->log.log_buf_lock to perhaps log a message in _gf_msg_internal(), + * the offending thread hangs on the mutex lock forever without letting + * the process exit. + * + * On the other hand. not taking the mutex in signal handler would cause + * it to modify the lru_list of buffered log messages in a racy manner, + * corrupt the list and potentially give rise to an unending + * cascade of SIGSEGVs and other re-entrancy issues. + */ + + gf_log_disable_suppression_before_exit (ctx); + gf_msg_callingfn ("", GF_LOG_WARNING, 0, glusterfsd_msg_32, signum); if (ctx->cleanup_started) @@ -1313,6 +1365,11 @@ glusterfs_ctx_defaults_init (glusterfs_ctx_t *ctx) if (!ctx->dict_data_pool) goto out; + ctx->logbuf_pool = mem_pool_new (log_buf_t, + GF_MEMPOOL_COUNT_OF_LRU_BUF_T); + if (!ctx->logbuf_pool) + goto out; + pthread_mutex_init (&(ctx->lock), NULL); ctx->clienttable = gf_clienttable_alloc(); @@ -1325,6 +1382,8 @@ glusterfs_ctx_defaults_init (glusterfs_ctx_t *ctx) cmd_args->log_level = DEFAULT_LOG_LEVEL; cmd_args->logger = gf_logger_glusterlog; cmd_args->log_format = gf_logformat_withmsgid; + cmd_args->log_buf_size = GF_LOG_LRU_BUFSIZE_DEFAULT; + cmd_args->log_flush_timeout = GF_LOG_FLUSH_TIMEOUT_DEFAULT; cmd_args->mac_compat = GF_OPTION_DISABLE; #ifdef GF_DARWIN_HOST_OS @@ -1359,6 +1418,7 @@ out: mem_pool_destroy (ctx->dict_pool); mem_pool_destroy (ctx->dict_data_pool); mem_pool_destroy (ctx->dict_pair_pool); + mem_pool_destroy (ctx->logbuf_pool); } return ret; @@ -1397,12 +1457,24 @@ logging_init (glusterfs_ctx_t *ctx, const char *progpath) gf_log_set_logformat (cmd_args->log_format); + gf_log_set_log_buf_size (cmd_args->log_buf_size); + + gf_log_set_log_flush_timeout (cmd_args->log_flush_timeout); + if (gf_log_init (ctx, cmd_args->log_file, cmd_args->log_ident) == -1) { fprintf (stderr, "ERROR: failed to open logfile %s\n", cmd_args->log_file); return -1; } + /* At this point, all the logging related parameters are initialised + * except for the log flush timer, which will be injected post fork(2) + * in daemonize() . During this time, any log message that is logged + * will be kept buffered. And if the list that holds these messages + * overflows, then the same lru policy is used to drive out the least + * recently used message and displace it with the message just logged. + */ + return 0; } @@ -1792,6 +1864,8 @@ postfork: if (ret) goto out; + ret = gf_log_inject_timer_event (ctx); + glusterfs_signals_setup (ctx); out: return ret; diff --git a/glusterfsd/src/glusterfsd.h b/glusterfsd/src/glusterfsd.h index 24487b4d461..a75369a24f5 100644 --- a/glusterfsd/src/glusterfsd.h +++ b/glusterfsd/src/glusterfsd.h @@ -39,6 +39,8 @@ #define GF_MEMPOOL_COUNT_OF_DATA_T (GF_MEMPOOL_COUNT_OF_DICT_T * 4) #define GF_MEMPOOL_COUNT_OF_DATA_PAIR_T (GF_MEMPOOL_COUNT_OF_DICT_T * 4) +#define GF_MEMPOOL_COUNT_OF_LRU_BUF_T 256 + enum argp_option_keys { ARGP_VOLFILE_SERVER_KEY = 's', ARGP_VOLUME_FILE_KEY = 'f', @@ -87,6 +89,8 @@ enum argp_option_keys { ARGP_FUSE_NO_ROOT_SQUASH_KEY = 167, ARGP_LOGGER = 168, ARGP_LOG_FORMAT = 169, + ARGP_LOG_BUF_SIZE = 170, + ARGP_LOG_FLUSH_TIMEOUT = 171, }; struct _gfd_vol_top_priv_t { |