masterReadOnly(const node& nd, bool toReadOnly)
{
if (toReadOnly)
{
m_db = createDb(nd.host.c_str(), nd.user.c_str(), nd.passwd.c_str(), true);
//db->execSql("flush tables with read lock");
//validateStatus(db, _T("flush tables"));
m_db->execSql("set global read_only=ON");
validateStatus(m_db, _T("read_only ON"));
}
}
void promoteMaster(const masterNode& master, database_ptr db, connMgr_ptr mgr,
binlogPos* bpos, bool readOnlyControl)
{
replicationParam pm;
pm.master = master;
pm.type = isMariadb(db) ? REP_TYPE_GTID_MA : REP_TYPE_GTID_MY;
if (m_isSwitchOver)
{
pm.master.channel = getChannlName(mgr, m_nd.host.c_str());
const_cast<masterNode&>(master).channel = pm.master.channel;
}
else
pm.master.channel = m_channel;
nfSetHostName(m_nf, master.host.c_str());
notify(m_nf, HA_NF_PROMOTE_MASTER, _T(""));
notify(m_nf, HA_NF_PROMOTE_CHANNEL, m_channel.c_str());
replSlave rpl(db, pm, mgr.get());
rpl.stop(one);
setMasterRoleStatus(mgr);
notify(m_nf, HA_NF_ROLE_MASTER, _T(""));
if (bpos)
{ // Sync SQLthread binlog pos to old master
rpl.startUntil(*bpos);
notify(m_nf, HA_NF_WAIT_POS_START, _T(""));
rpl.waitForSlaveSync(*bpos, 2, NULL);
notify(m_nf, HA_NF_WAIT_POS_COMP, *bpos);
rpl.stop(one);
notify(m_nf, HA_SLAVE_STOP, _T(""));
}
rpl.resetAll(); // reset only this channel
if (readOnlyControl)
{
db->execSql("set global read_only=OFF");
validateStatus(db, _T("read_only off"));
notify(m_nf, HA_SET_READ_ONLY, _T(""));
}
}
~masterReadOnly()
{
if (m_db)
m_db->execSql("set global read_only=OFF");
}