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Merge branch '2.2' into develop

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This commit is contained in:
Esa Korhonen
2018-03-13 11:26:41 +02:00
parent 69383c0943 633b08ed0d
commit dad6a4f9bf
9 changed files with 59 additions and 43 deletions
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14
server/modules/monitor/mariadbmon/cluster_manipulation.cc
View File

@ -212,7 +212,7 @@ bool MariaDBMonitor::get_joinable_servers(ServerVector* output)
server != NULL;
server = server->next)
{
if (server_is_rejoin_suspect(server, master_info))
if (server_is_rejoin_suspect(server, master_info, NULL))
{
suspects.push_back(server);
}
@ -267,12 +267,13 @@ bool MariaDBMonitor::join_cluster(MXS_MONITORED_SERVER* server, const char* chan
return rval;
}
bool MariaDBMonitor::server_is_rejoin_suspect(MXS_MONITORED_SERVER* server, MySqlServerInfo* master_info)
bool MariaDBMonitor::server_is_rejoin_suspect(MXS_MONITORED_SERVER* rejoin_server,
MySqlServerInfo* master_info, json_t** output)
{
bool is_suspect = false;
if (!SERVER_IS_MASTER(server->server) && SERVER_IS_RUNNING(server->server))
if (!SERVER_IS_MASTER(rejoin_server->server) && SERVER_IS_RUNNING(rejoin_server->server))
{
MySqlServerInfo* server_info = get_server_info(this, server);
MySqlServerInfo* server_info = get_server_info(this, rejoin_server);
SlaveStatusInfo* slave_status = &server_info->slave_status;
// Has no slave connection, yet is not a master.
if (server_info->n_slaves_configured == 0)
@ -297,6 +298,11 @@ bool MariaDBMonitor::server_is_rejoin_suspect(MXS_MONITORED_SERVER* server, MySq
}
}
}
else if (output != NULL)
{
PRINT_MXS_JSON_ERROR(output, "Server '%s' is master or not running.",
rejoin_server->server->unique_name);
}
return is_suspect;
}

48
server/modules/monitor/mariadbmon/mariadbmon.cc
View File

@ -518,39 +518,50 @@ bool mysql_rejoin(MXS_MONITOR* mon, SERVER* rejoin_server, json_t** output)
MariaDBMonitor *handle = static_cast<MariaDBMonitor*>(mon->handle);
if (handle->cluster_can_be_joined())
{
const char* rejoin_serv_name = rejoin_server->unique_name;
MXS_MONITORED_SERVER* mon_server = mon_get_monitored_server(mon, rejoin_server);
if (mon_server)
{
MXS_MONITORED_SERVER* master = handle->master;
const char* master_name = master->server->unique_name;
MySqlServerInfo* master_info = get_server_info(handle, master);
MySqlServerInfo* server_info = get_server_info(handle, mon_server);
if (handle->server_is_rejoin_suspect(mon_server, master_info) &&
handle->update_gtids(master, master_info) &&
can_replicate_from(handle, mon_server, server_info, master, master_info))
if (handle->server_is_rejoin_suspect(mon_server, master_info, output))
{
ServerVector joinable_server;
joinable_server.push_back(mon_server);
if (handle->do_rejoin(joinable_server) == 1)
if (handle->update_gtids(master, master_info))
{
rval = true;
MXS_NOTICE("Rejoin performed.");
if (can_replicate_from(handle, mon_server, server_info, master, master_info))
{
ServerVector joinable_server;
joinable_server.push_back(mon_server);
if (handle->do_rejoin(joinable_server) == 1)
{
rval = true;
MXS_NOTICE("Rejoin performed.");
}
else
{
PRINT_MXS_JSON_ERROR(output, "Rejoin attempted but failed.");
}
}
else
{
PRINT_MXS_JSON_ERROR(output, "Server '%s' cannot replicate from cluster master '%s' "
"or it could not be queried.", rejoin_serv_name, master_name);
}
}
else
{
PRINT_MXS_JSON_ERROR(output, "Rejoin attempted but failed.");
PRINT_MXS_JSON_ERROR(output, "Cluster master '%s' gtid info could not be updated.",
master_name);
}
}
else
{
PRINT_MXS_JSON_ERROR(output, "Server is not eligible for rejoin or eligibility could not be "
"ascertained.");
}
}
else
{
PRINT_MXS_JSON_ERROR(output, "The given server '%s' is not monitored by this monitor.",
rejoin_server->unique_name);
rejoin_serv_name);
}
}
else
@ -1168,7 +1179,12 @@ bool MariaDBMonitor::do_show_slave_status(MySqlServerInfo* serv_info, MXS_MONITO
* root master server.
* Please note, there could be no slaves at all if Slave_SQL_Running == 'No'
*/
if (serv_info->slave_status.slave_io_running && server_version != MYSQL_SERVER_VERSION_51)
const char* last_io_errno = mxs_mysql_get_value(result, row, "Last_IO_Errno");
int io_errno = last_io_errno ? atoi(last_io_errno) : 0;
const int connection_errno = 2003;
if ((io_errno == 0 || io_errno == connection_errno) &&
server_version != MYSQL_SERVER_VERSION_51)
{
/* Get Master_Server_Id */
master_server_id = scan_server_id(row[i_master_server_id]);

6
server/modules/monitor/mariadbmon/mariadbmon.hh
View File

@ -133,11 +133,13 @@ public:
* Checks if a server is a possible rejoin candidate. A true result from this function is not yet sufficient
* criteria and another call to can_replicate_from() should be made.
*
* @param server Server to check.
* @param server Server to check
* @param master_info Master server info
* @param output Error output. If NULL, no error is printed to log.
* @return True, if server is a rejoin suspect.
*/
bool server_is_rejoin_suspect(MXS_MONITORED_SERVER* server, MySqlServerInfo* master_info);
bool server_is_rejoin_suspect(MXS_MONITORED_SERVER* server, MySqlServerInfo* master_info,
json_t** output);
/**
* (Re)join given servers to the cluster. The servers in the array are assumed to be joinable.