/* standalone ctdb daemon Copyright (C) Andrew Tridgell 2006 This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, see . */ #include "replace.h" #include "system/filesys.h" #include "system/time.h" #include "system/wait.h" #include "system/network.h" #include #include /* Allow use of deprecated function tevent_loop_allow_nesting() */ #define TEVENT_DEPRECATED #include #include "lib/util/debug.h" #include "lib/util/samba_util.h" #include "ctdb_private.h" #include "common/reqid.h" #include "common/system.h" #include "common/cmdline.h" #include "common/common.h" #include "common/logging.h" static struct { const char *nlist; const char *transport; const char *myaddress; const char *public_address_list; const char *event_script_dir; const char *notification_script; const char *logging; const char *recovery_lock; const char *db_dir; const char *db_dir_persistent; const char *db_dir_state; const char *public_interface; int valgrinding; int nosetsched; int start_as_disabled; int start_as_stopped; int no_lmaster; int no_recmaster; int script_log_level; int no_publicipcheck; int max_persistent_check_errors; } options = { .nlist = NULL, .public_address_list = NULL, .transport = "tcp", .event_script_dir = NULL, .logging = "file:" LOGDIR "/log.ctdb", .db_dir = CTDB_VARDIR, .db_dir_persistent = CTDB_VARDIR "/persistent", .db_dir_state = CTDB_VARDIR "/state", .script_log_level = DEBUG_ERR, }; int script_log_level; bool fast_start; /* called by the transport layer when a packet comes in */ static void ctdb_recv_pkt(struct ctdb_context *ctdb, uint8_t *data, uint32_t length) { struct ctdb_req_header *hdr = (struct ctdb_req_header *)data; CTDB_INCREMENT_STAT(ctdb, node_packets_recv); /* up the counter for this source node, so we know its alive */ if (ctdb_validate_pnn(ctdb, hdr->srcnode)) { /* as a special case, redirected calls don't increment the rx_cnt */ if (hdr->operation != CTDB_REQ_CALL || ((struct ctdb_req_call_old *)hdr)->hopcount == 0) { ctdb->nodes[hdr->srcnode]->rx_cnt++; } } ctdb_input_pkt(ctdb, hdr); } static const struct ctdb_upcalls ctdb_upcalls = { .recv_pkt = ctdb_recv_pkt, .node_dead = ctdb_node_dead, .node_connected = ctdb_node_connected }; /* main program */ int main(int argc, const char *argv[]) { struct ctdb_context *ctdb; int interactive = 0; struct poptOption popt_options[] = { POPT_AUTOHELP POPT_CTDB_CMDLINE { "interactive", 'i', POPT_ARG_NONE, &interactive, 0, "don't fork", NULL }, { "public-addresses", 0, POPT_ARG_STRING, &options.public_address_list, 0, "public address list file", "filename" }, { "public-interface", 0, POPT_ARG_STRING, &options.public_interface, 0, "public interface", "interface"}, { "event-script-dir", 0, POPT_ARG_STRING, &options.event_script_dir, 0, "event script directory", "dirname" }, { "logging", 0, POPT_ARG_STRING, &options.logging, 0, "logging method to be used", NULL }, { "nlist", 0, POPT_ARG_STRING, &options.nlist, 0, "node list file", "filename" }, { "notification-script", 0, POPT_ARG_STRING, &options.notification_script, 0, "notification script", "filename" }, { "listen", 0, POPT_ARG_STRING, &options.myaddress, 0, "address to listen on", "address" }, { "transport", 0, POPT_ARG_STRING, &options.transport, 0, "protocol transport", NULL }, { "dbdir", 0, POPT_ARG_STRING, &options.db_dir, 0, "directory for the tdb files", NULL }, { "dbdir-persistent", 0, POPT_ARG_STRING, &options.db_dir_persistent, 0, "directory for persistent tdb files", NULL }, { "dbdir-state", 0, POPT_ARG_STRING, &options.db_dir_state, 0, "directory for internal state tdb files", NULL }, { "reclock", 0, POPT_ARG_STRING, &options.recovery_lock, 0, "recovery lock", "lock" }, { "pidfile", 0, POPT_ARG_STRING, &ctdbd_pidfile, 0, "location of PID file", "filename" }, { "valgrinding", 0, POPT_ARG_NONE, &options.valgrinding, 0, "disable setscheduler SCHED_FIFO call, use mmap for tdbs", NULL }, { "nosetsched", 0, POPT_ARG_NONE, &options.nosetsched, 0, "disable setscheduler SCHED_FIFO call, use mmap for tdbs", NULL }, { "start-as-disabled", 0, POPT_ARG_NONE, &options.start_as_disabled, 0, "Node starts in disabled state", NULL }, { "start-as-stopped", 0, POPT_ARG_NONE, &options.start_as_stopped, 0, "Node starts in stopped state", NULL }, { "no-lmaster", 0, POPT_ARG_NONE, &options.no_lmaster, 0, "disable lmaster role on this node", NULL }, { "no-recmaster", 0, POPT_ARG_NONE, &options.no_recmaster, 0, "disable recmaster role on this node", NULL }, { "script-log-level", 0, POPT_ARG_INT, &options.script_log_level, 0, "log level of event script output", NULL }, { "nopublicipcheck", 0, POPT_ARG_NONE, &options.no_publicipcheck, 0, "don't check we have/don't have the correct public ip addresses", NULL }, { "max-persistent-check-errors", 0, POPT_ARG_INT, &options.max_persistent_check_errors, 0, "max allowed persistent check errors (default 0)", NULL }, { "sloppy-start", 0, POPT_ARG_NONE, &fast_start, 0, "Do not perform full recovery on start", NULL }, POPT_TABLEEND }; int opt, ret; const char **extra_argv; int extra_argc = 0; poptContext pc; struct tevent_context *ev; pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST); while ((opt = poptGetNextOpt(pc)) != -1) { switch (opt) { default: fprintf(stderr, "Invalid option %s: %s\n", poptBadOption(pc, 0), poptStrerror(opt)); exit(1); } } /* setup the remaining options for the main program to use */ extra_argv = poptGetArgs(pc); if (extra_argv) { extra_argv++; while (extra_argv[extra_argc]) extra_argc++; } talloc_enable_null_tracking(); fault_setup(); ev = tevent_context_init(NULL); tevent_loop_allow_nesting(ev); ctdb = ctdb_cmdline_init(ev); ctdb->start_as_disabled = options.start_as_disabled; ctdb->start_as_stopped = options.start_as_stopped; script_log_level = options.script_log_level; if (!ctdb_logging_init(ctdb, options.logging)) { exit(1); } DEBUG(DEBUG_NOTICE,("CTDB starting on node\n")); gettimeofday(&ctdb->ctdbd_start_time, NULL); gettimeofday(&ctdb->last_recovery_started, NULL); gettimeofday(&ctdb->last_recovery_finished, NULL); ctdb->recovery_mode = CTDB_RECOVERY_NORMAL; ctdb->recovery_master = (uint32_t)-1; ctdb->upcalls = &ctdb_upcalls; if (options.recovery_lock == NULL) { DEBUG(DEBUG_WARNING, ("Recovery lock not set\n")); } ctdb->recovery_lock = options.recovery_lock; TALLOC_FREE(ctdb->idr); ret = reqid_init(ctdb, 0, &ctdb->idr);; if (ret != 0) { DEBUG(DEBUG_ALERT, ("reqid_init failed (%s)\n", strerror(ret))); exit(1); } ctdb_tunables_set_defaults(ctdb); ret = ctdb_set_transport(ctdb, options.transport); if (ret == -1) { DEBUG(DEBUG_ALERT,("ctdb_set_transport failed - %s\n", ctdb_errstr(ctdb))); exit(1); } /* tell ctdb what address to listen on */ if (options.myaddress) { ret = ctdb_set_address(ctdb, options.myaddress); if (ret == -1) { DEBUG(DEBUG_ALERT,("ctdb_set_address failed - %s\n", ctdb_errstr(ctdb))); exit(1); } } /* set ctdbd capabilities */ ctdb->capabilities = CTDB_CAP_DEFAULT; if (options.no_lmaster != 0) { ctdb->capabilities &= ~CTDB_CAP_LMASTER; } if (options.no_recmaster != 0) { ctdb->capabilities &= ~CTDB_CAP_RECMASTER; } /* Initialise this node's PNN to the unknown value. This will * be set to the correct value by either ctdb_add_node() as * part of loading the nodes file or by * ctdb_tcp_listen_automatic() when the transport is * initialised. At some point we should de-optimise this and * pull it out into ctdb_start_daemon() so it is done clearly * and only in one place. */ ctdb->pnn = -1; /* Default value for CTDB_BASE - don't override */ setenv("CTDB_BASE", CTDB_ETCDIR, 0); /* tell ctdb what nodes are available */ if (options.nlist != NULL) { ctdb->nodes_file = options.nlist; } else { ctdb->nodes_file = talloc_asprintf(ctdb, "%s/nodes", getenv("CTDB_BASE")); if (ctdb->nodes_file == NULL) { DEBUG(DEBUG_ALERT,(__location__ " Out of memory\n")); exit(1); } } ctdb_load_nodes_file(ctdb); ctdb->db_directory = options.db_dir; mkdir_p_or_die(ctdb->db_directory, 0700); ctdb->db_directory_persistent = options.db_dir_persistent; mkdir_p_or_die(ctdb->db_directory_persistent, 0700); ctdb->db_directory_state = options.db_dir_state; mkdir_p_or_die(ctdb->db_directory_state, 0700); if (options.public_interface) { ctdb->default_public_interface = talloc_strdup(ctdb, options.public_interface); CTDB_NO_MEMORY(ctdb, ctdb->default_public_interface); } if (options.event_script_dir != NULL) { ctdb->event_script_dir = options.event_script_dir; } else { ctdb->event_script_dir = talloc_asprintf(ctdb, "%s/events.d", getenv("CTDB_BASE")); if (ctdb->event_script_dir == NULL) { DEBUG(DEBUG_ALERT,(__location__ " Out of memory\n")); exit(1); } } if (options.notification_script != NULL) { ret = ctdb_set_notification_script(ctdb, options.notification_script); if (ret == -1) { DEBUG(DEBUG_ALERT,("Unable to setup notification script\n")); exit(1); } } ctdb->valgrinding = (options.valgrinding == 1); ctdb->do_setsched = (options.nosetsched != 1); if (ctdb->valgrinding) { ctdb->do_setsched = false; } ctdb->public_addresses_file = options.public_address_list; ctdb->do_checkpublicip = (options.no_publicipcheck == 0); if (options.max_persistent_check_errors < 0) { ctdb->max_persistent_check_errors = 0xFFFFFFFFFFFFFFFFLL; } else { ctdb->max_persistent_check_errors = (uint64_t)options.max_persistent_check_errors; } /* start the protocol running (as a child) */ return ctdb_start_daemon(ctdb, interactive?false:true); }