Format monitor modules
Formatted monitor modules with Astyle.
This commit is contained in:
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c25b7629f4
commit
735674bb1b
@ -281,16 +281,16 @@ MXS_MODULE* MXS_CREATE_MODULE()
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{
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{
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"script",
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MXS_MODULE_PARAM_PATH,
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NULL,
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MXS_MODULE_OPT_PATH_X_OK
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MXS_MODULE_PARAM_PATH,
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NULL,
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MXS_MODULE_OPT_PATH_X_OK
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},
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{
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"events",
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MXS_MODULE_PARAM_ENUM,
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MONITOR_EVENT_DEFAULT_VALUE,
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MXS_MODULE_OPT_NONE,
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monitor_event_enum_values
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MXS_MODULE_PARAM_ENUM,
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MONITOR_EVENT_DEFAULT_VALUE,
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MXS_MODULE_OPT_NONE,
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monitor_event_enum_values
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},
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{MXS_END_MODULE_PARAMS}
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}
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@ -55,8 +55,6 @@ static MONITOR_SERVERS *set_cluster_master(MONITOR_SERVERS *, MONITOR_SERVERS *,
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static void disableMasterFailback(void *, int);
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bool isGaleraEvent(monitor_event_t event);
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static void update_sst_donor_nodes(MONITOR*, int);
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static int compare_node_index(const void*, const void*);
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static int compare_node_priority(const void*, const void*);
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/**
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* The module entry point routine. It is this routine that
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@ -97,16 +95,16 @@ MXS_MODULE* MXS_CREATE_MODULE()
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{"use_priority", MXS_MODULE_PARAM_BOOL, "false"},
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{
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"script",
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MXS_MODULE_PARAM_PATH,
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NULL,
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MXS_MODULE_OPT_PATH_X_OK
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MXS_MODULE_PARAM_PATH,
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NULL,
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MXS_MODULE_OPT_PATH_X_OK
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},
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{
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"events",
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MXS_MODULE_PARAM_ENUM,
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MONITOR_EVENT_DEFAULT_VALUE,
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MXS_MODULE_OPT_NONE,
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monitor_event_enum_values
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MXS_MODULE_PARAM_ENUM,
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MONITOR_EVENT_DEFAULT_VALUE,
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MXS_MODULE_OPT_NONE,
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monitor_event_enum_values
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},
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{"set_donor_nodes", MXS_MODULE_PARAM_BOOL, "false"},
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{MXS_END_MODULE_PARAMS}
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@ -548,7 +546,7 @@ monitorMain(void *arg)
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*/
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if (handle->set_donor_nodes)
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{
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update_sst_donor_nodes(mon, is_cluster);
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update_sst_donor_nodes(mon, is_cluster);
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}
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release_monitor_servers(mon);
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@ -616,9 +614,7 @@ static MONITOR_SERVERS *get_candidate_master(MONITOR* mon)
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* This means that we can't connect to the root node of the cluster.
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*
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* If the node is down, the cluster would recalculate the index values
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* and we would find it. In this case, we just can't connect to it.
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*/
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* and we would find it. In this case, we just can't connect to it. */
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candidate_master = NULL;
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}
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@ -639,8 +635,7 @@ static MONITOR_SERVERS *get_candidate_master(MONITOR* mon)
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* @param candidate_master The candidate master server accordingly to the selection rule
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* @return The master node pointer (could be NULL)
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*/
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static MONITOR_SERVERS *set_cluster_master(MONITOR_SERVERS *current_master,
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MONITOR_SERVERS *candidate_master,
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static MONITOR_SERVERS *set_cluster_master(MONITOR_SERVERS *current_master, MONITOR_SERVERS *candidate_master,
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int master_stickiness)
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{
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/*
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@ -692,17 +687,12 @@ static void update_sst_donor_nodes(MONITOR *mon, int is_cluster)
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MONITOR_SERVERS *ptr;
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MYSQL_ROW row;
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MYSQL_RES *result;
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GALERA_MONITOR *handle = mon->handle;
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bool ignore_priority = true;
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if (is_cluster == 1)
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{
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MXS_DEBUG("Only one server in the cluster: update_sst_donor_nodes is not performed");
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return;
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}
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unsigned int found_slaves = 0;
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MONITOR_SERVERS *node_list[is_cluster-1];
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/* Donor list size = DONOR_LIST_SET_VAR + n_hosts * max_host_len + n_hosts + 1 */
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char *donor_list = MXS_CALLOC(1, strlen(DONOR_LIST_SET_VAR) +
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@ -719,77 +709,44 @@ static void update_sst_donor_nodes(MONITOR *mon, int is_cluster)
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ptr = mon->databases;
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/* Create an array of slave nodes */
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while (ptr)
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{
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if (SERVER_IS_JOINED(ptr->server) && SERVER_IS_SLAVE(ptr->server))
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{
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node_list[found_slaves] = (MONITOR_SERVERS *)ptr;
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found_slaves++;
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/* Check the server parameter "priority"
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* If no server has "priority" set, then
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* the server list will be order by default method.
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*/
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if (handle->use_priority &&
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server_get_parameter(ptr->server, "priority"))
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{
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ignore_priority = false;
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}
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}
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ptr = ptr->next;
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}
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if (ignore_priority)
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{
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MXS_DEBUG("Use priority is set but no server has priority parameter. "
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"Donor server list will be ordered by 'wsrep_local_index'");
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}
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/* Set order type */
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bool sort_order = (!ignore_priority) && (int)handle->use_priority;
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/* Sort the array */
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qsort(node_list,
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found_slaves,
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sizeof(MONITOR_SERVERS *),
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sort_order ? compare_node_priority : compare_node_index);
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/* Select nodename from each server and append it to node_list */
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for (int k = 0; k < found_slaves; k++)
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{
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MONITOR_SERVERS *ptr = node_list[k];
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/* Get the Galera node name */
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if (mysql_query(ptr->con, "SHOW VARIABLES LIKE 'wsrep_node_name'") == 0
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/* Get the Galera node name */
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if (mysql_query(ptr->con, "SHOW VARIABLES LIKE 'wsrep_node_name'") == 0
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&& (result = mysql_store_result(ptr->con)) != NULL)
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{
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if (mysql_field_count(ptr->con) < 2)
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{
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mysql_free_result(result);
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MXS_ERROR("Unexpected result for \"SHOW VARIABLES LIKE 'wsrep_node_name'\". "
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if (mysql_field_count(ptr->con) < 2)
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{
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mysql_free_result(result);
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MXS_ERROR("Unexpected result for \"SHOW VARIABLES LIKE 'wsrep_node_name'\". "
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"Expected 2 columns");
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return;
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}
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return;
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}
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while ((row = mysql_fetch_row(result)))
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while ((row = mysql_fetch_row(result)))
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{
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MXS_DEBUG("wsrep_node_name name for %s is [%s]",
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ptr->server->unique_name,
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row[1]);
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strncat(donor_list, row[1], DONOR_NODE_NAME_MAX_LEN);
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strcat(donor_list, ",");
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}
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mysql_free_result(result);
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}
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else
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{
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MXS_DEBUG("wsrep_node_name name for %s is [%s]",
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ptr->server->unique_name,
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row[1]);
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strncat(donor_list, row[1], DONOR_NODE_NAME_MAX_LEN);
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strcat(donor_list, ",");
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MXS_ERROR("Error while selecting 'wsrep_node_name' from node %s: %s",
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ptr->server->unique_name,
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mysql_error(ptr->con));
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}
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}
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mysql_free_result(result);
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}
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else
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{
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MXS_ERROR("Error while selecting 'wsrep_node_name' from node %s: %s",
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ptr->server->unique_name,
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mysql_error(ptr->con));
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}
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ptr = ptr->next;
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}
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int donor_list_size = strlen(donor_list);
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@ -801,121 +758,31 @@ static void update_sst_donor_nodes(MONITOR *mon, int is_cluster)
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strcat(donor_list, "\"");
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MXS_DEBUG("Sending %s to all slave nodes",
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donor_list);
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donor_list);
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/* Set now rep_sst_donor in each slave node */
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for (int k=0; k < found_slaves; k++)
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ptr = mon->databases;
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while (ptr)
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{
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MONITOR_SERVERS *ptr = node_list[k];
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/* Set the Galera SST donor node list */
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if (mysql_query(ptr->con, donor_list) == 0)
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if (SERVER_IS_JOINED(ptr->server) && SERVER_IS_SLAVE(ptr->server))
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{
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MXS_DEBUG("SET GLOBAL rep_sst_donor OK in node %s",
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ptr->server->unique_name);
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}
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else
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{
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MXS_ERROR("SET GLOBAL rep_sst_donor error in node %s: %s",
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ptr->server->unique_name,
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mysql_error(ptr->con));
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/* Set the Galera SST donor node list */
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if (mysql_query(ptr->con, donor_list) == 0)
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{
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MXS_DEBUG("SET GLOBAL rep_sst_donor OK in node %s",
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ptr->server->unique_name);
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}
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else
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{
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MXS_ERROR("SET GLOBAL rep_sst_donor error in node %s: %s",
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ptr->server->unique_name,
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mysql_error(ptr->con));
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}
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}
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ptr = ptr->next;
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}
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MXS_FREE(donor_list);
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}
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/**
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* Compare routine for slave nodes sorted by 'wsrep_local_index'
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*
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* The default order is DESC.
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*
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* Nodes with lowest 'wsrep_local_index' value
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* are at the end of the list.
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*
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* @param a Pointer to array value
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* @param b Pointer to array value
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* @return A number less than, threater than or equal to 0
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*/
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static int compare_node_index (const void *a, const void *b)
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{
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const MONITOR_SERVERS *s_a = *(MONITOR_SERVERS * const *)a;
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const MONITOR_SERVERS *s_b = *(MONITOR_SERVERS * const *)b;
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// Order is DESC: b - a
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return s_b->server->node_id - s_a->server->node_id;
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}
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/**
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* Compare routine for slave nodes sorted by node priority
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*
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* The default order is DESC.
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*
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* Some special cases, i.e: no give priority, or 0 value
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* are handled.
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*
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* Note: the master selection algorithm is:
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* node with lowest priority value and > 0
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*
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* This sorting function will add master candidates
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* at the end of the list.
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*
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* @param a Pointer to array value
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* @param b Pointer to array value
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* @return A number less than, threater than or equal to 0
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*/
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static int compare_node_priority (const void *a, const void *b)
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{
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const MONITOR_SERVERS *s_a = *(MONITOR_SERVERS * const *)a;
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const MONITOR_SERVERS *s_b = *(MONITOR_SERVERS * const *)b;
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const char *pri_a = server_get_parameter(s_a->server, "priority");
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const char *pri_b = server_get_parameter(s_b->server, "priority");
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/**
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* Check priority parameter:
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*
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* Return a - b in case of issues
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*/
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if (!pri_a && pri_b)
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{
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MXS_DEBUG("Server %s has no given priority. It will be at the beginning of the list",
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s_a->server->unique_name);
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return -(INT_MAX - 1);
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}
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else if (pri_a && !pri_b)
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{
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MXS_DEBUG("Server %s has no given priority. It will be at the beginning of the list",
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s_b->server->unique_name);
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return INT_MAX - 1;
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}
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else if (!pri_a && !pri_b)
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{
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MXS_DEBUG("Servers %s and %s have no given priority. They be at the beginning of the list",
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s_a->server->unique_name,
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s_b->server->unique_name);
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return 0;
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}
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/* The given priority is valid */
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int pri_val_a = atoi(pri_a);
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int pri_val_b = atoi(pri_b);
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/* Return a - b in case of issues */
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if ((pri_val_a < INT_MAX && pri_val_a > 0) && !(pri_val_b < INT_MAX && pri_val_b > 0))
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{
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return pri_val_a;
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}
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else if (!(pri_val_a < INT_MAX && pri_val_a > 0) && (pri_val_b < INT_MAX && pri_val_b > 0))
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{
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return -pri_val_b;
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}
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else if (!(pri_val_a < INT_MAX && pri_val_a > 0) && !(pri_val_b < INT_MAX && pri_val_b > 0))
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{
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return 0;
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}
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// The order is DESC: b -a
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return pri_val_b - pri_val_a;
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}
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@ -129,16 +129,16 @@ MXS_MODULE* MXS_CREATE_MODULE()
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{"failcount", MXS_MODULE_PARAM_COUNT, "5"},
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{
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"script",
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MXS_MODULE_PARAM_PATH,
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NULL,
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MXS_MODULE_OPT_PATH_X_OK
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MXS_MODULE_PARAM_PATH,
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NULL,
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MXS_MODULE_OPT_PATH_X_OK
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},
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{
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"events",
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MXS_MODULE_PARAM_ENUM,
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MONITOR_EVENT_DEFAULT_VALUE,
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MXS_MODULE_OPT_NONE,
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monitor_event_enum_values
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MXS_MODULE_PARAM_ENUM,
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MONITOR_EVENT_DEFAULT_VALUE,
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MXS_MODULE_OPT_NONE,
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monitor_event_enum_values
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},
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{MXS_END_MODULE_PARAMS}
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}
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@ -80,16 +80,16 @@ MXS_MODULE* MXS_CREATE_MODULE()
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{
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{
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"script",
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MXS_MODULE_PARAM_PATH,
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NULL,
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MXS_MODULE_OPT_PATH_X_OK
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MXS_MODULE_PARAM_PATH,
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NULL,
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MXS_MODULE_OPT_PATH_X_OK
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},
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{
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"events",
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MXS_MODULE_PARAM_ENUM,
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MONITOR_EVENT_DEFAULT_VALUE,
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MXS_MODULE_OPT_NONE,
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monitor_event_enum_values
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MXS_MODULE_PARAM_ENUM,
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MONITOR_EVENT_DEFAULT_VALUE,
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MXS_MODULE_OPT_NONE,
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monitor_event_enum_values
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},
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{MXS_END_MODULE_PARAMS} // No parameters
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}
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