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Integrate Replicator into avrorouter

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Took the Replicator into use in avrorouter as an alternative to the
binlogrouter based setup. This also allows the avrorouter to automatically
handle master failovers and to start replication from GTID coordinates.
This commit is contained in:
Markus Mäkelä
2019-04-07 11:33:24 +03:00
parent 7723e7c933
commit 733dc491d9
6 changed files with 55 additions and 38 deletions
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43
server/modules/routing/avrorouter/avro.cc
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@ -133,22 +133,41 @@ Avro::Avro(SERVICE* service, MXS_CONFIG_PARAMETER* params, SERVICE* source, SRow
, handler(service, handler, params->get_compiled_regex("match", 0, NULL).release(),
params->get_compiled_regex("exclude", 0, NULL).release())
{
if (source)
if (params->contains(CN_SERVERS))
{
read_source_service_options(source);
MXS_NOTICE("Replicating directly from a master server");
cdc::Config cnf;
cnf.service = service;
cnf.statedir = avrodir;
cnf.server_id = params->get_integer("server_id");
cnf.gtid = params->get_string("gtid_start_pos");
auto worker = mxs::RoutingWorker::get(mxs::RoutingWorker::MAIN);
worker->execute([this, cnf]() {
m_replicator = cdc::Replicator::start(cnf, &this->handler);
mxb_assert(m_replicator);
}, mxs::RoutingWorker::EXECUTE_QUEUED);
}
else
{
if (source)
{
read_source_service_options(source);
}
char filename[BINLOG_FNAMELEN + 1];
snprintf(filename,
sizeof(filename),
BINLOG_NAMEFMT,
filestem.c_str(),
static_cast<int>(params->get_integer("start_index")));
binlog_name = filename;
MXS_NOTICE("Reading MySQL binlog files from %s", binlogdir.c_str());
MXS_NOTICE("First binlog is: %s", binlog_name.c_str());
}
char filename[BINLOG_FNAMELEN + 1];
snprintf(filename,
sizeof(filename),
BINLOG_NAMEFMT,
filestem.c_str(),
static_cast<int>(params->get_integer("start_index")));
binlog_name = filename;
MXS_NOTICE("Reading MySQL binlog files from %s", binlogdir.c_str());
MXS_NOTICE("Avro files stored at: %s", avrodir.c_str());
MXS_NOTICE("First binlog is: %s", binlog_name.c_str());
// TODO: Do these in Avro::create
avro_load_conversion_state(this);