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-rw-r--r--ctdb/server/ctdbd.c324
1 files changed, 324 insertions, 0 deletions
diff --git a/ctdb/server/ctdbd.c b/ctdb/server/ctdbd.c
new file mode 100644
index 0000000000..5bf48a1a21
--- /dev/null
+++ b/ctdb/server/ctdbd.c
@@ -0,0 +1,324 @@
+/*
+ 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 <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+#include "system/filesys.h"
+#include "popt.h"
+#include "system/time.h"
+#include "system/wait.h"
+#include "system/network.h"
+#include "cmdline.h"
+#include "../include/ctdb_private.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 *logfile;
+ const char *recovery_lock_file;
+ const char *db_dir;
+ const char *db_dir_persistent;
+ const char *db_dir_state;
+ const char *public_interface;
+ const char *single_public_ip;
+ int valgrinding;
+ int nosetsched;
+ int use_syslog;
+ int start_as_disabled;
+ int start_as_stopped;
+ int no_lmaster;
+ int no_recmaster;
+ int lvs;
+ 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,
+ .logfile = 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 *)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"},
+ { "single-public-ip", 0, POPT_ARG_STRING, &options.single_public_ip, 0, "single public ip", "ip-address"},
+ { "event-script-dir", 0, POPT_ARG_STRING, &options.event_script_dir, 0, "event script directory", "dirname" },
+ { "logfile", 0, POPT_ARG_STRING, &options.logfile, 0, "log file location", "filename" },
+ { "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_file, 0, "location of recovery lock file", "filename" },
+ { "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 },
+ { "syslog", 0, POPT_ARG_NONE, &options.use_syslog, 0, "log messages to syslog", 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 },
+ { "lvs", 0, POPT_ARG_NONE, &options.lvs, 0, "lvs is enabled 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 },
+ { "log-ringbuf-size", 0, POPT_ARG_INT, &log_ringbuf_size, 0, "Number of log messages we can store in the memory ringbuffer", 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 event_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();
+
+ ctdb_block_signal(SIGPIPE);
+ fault_setup("ctdbd");
+
+ ev = event_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;
+
+ ret = ctdb_set_logfile(ctdb, options.logfile, options.use_syslog);
+ if (ret == -1) {
+ printf("ctdb_set_logfile to %s failed - %s\n",
+ options.use_syslog?"syslog":options.logfile, ctdb_errstr(ctdb));
+ 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;
+ ctdb->idr = idr_init(ctdb);
+ ctdb->recovery_lock_fd = -1;
+
+ ctdb_tunables_set_defaults(ctdb);
+
+ ret = ctdb_set_recovery_lock_file(ctdb, options.recovery_lock_file);
+ if (ret == -1) {
+ DEBUG(DEBUG_ALERT,("ctdb_set_recovery_lock_file failed - %s\n", ctdb_errstr(ctdb)));
+ exit(1);
+ }
+
+ 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 = 0;
+ if (options.no_lmaster == 0) {
+ ctdb->capabilities |= CTDB_CAP_LMASTER;
+ }
+ if (options.no_recmaster == 0) {
+ ctdb->capabilities |= CTDB_CAP_RECMASTER;
+ }
+ if (options.lvs != 0) {
+ ctdb->capabilities |= CTDB_CAP_LVS;
+ }
+
+ /* 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", ETCDIR "/ctdb", 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;
+ ctdb_mkdir_p_or_die(ctdb, ctdb->db_directory, 0700);
+
+ ctdb->db_directory_persistent = options.db_dir_persistent;
+ ctdb_mkdir_p_or_die(ctdb, ctdb->db_directory_persistent, 0700);
+
+ ctdb->db_directory_state = options.db_dir_state;
+ ctdb_mkdir_p_or_die(ctdb, 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.single_public_ip) {
+ if (options.public_interface == NULL) {
+ DEBUG(DEBUG_ALERT,("--single_public_ip used but --public_interface is not specified. You must specify the public interface when using single public ip. Exiting\n"));
+ exit(10);
+ }
+
+ ret = ctdb_set_single_public_ip(ctdb, options.public_interface,
+ options.single_public_ip);
+ if (ret != 0) {
+ DEBUG(DEBUG_ALERT,("Invalid --single-public-ip argument : %s . This is not a valid ip address. Exiting.\n", options.single_public_ip));
+ exit(10);
+ }
+ }
+
+ 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;
+ if (options.valgrinding || options.nosetsched) {
+ ctdb->do_setsched = 0;
+ } else {
+ ctdb->do_setsched = 1;
+ }
+
+ ctdb->public_addresses_file = options.public_address_list;
+ ctdb->do_checkpublicip = !options.no_publicipcheck;
+
+ 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, options.use_syslog);
+}
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