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MAX-10, Transaction support for MaxScale.

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Naive implementation, which routes all statements to master between BEGIN|START TRANSACTION <options> and ROLLBACK|COMMIT
This commit is contained in:
VilhoRaatikka
2014-03-18 23:41:32 +02:00
parent d7e9978ac1
commit d6a9a5c1d0
4 changed files with 82 additions and 22 deletions
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63
server/modules/routing/readwritesplit/readwritesplit.c
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@ -583,6 +583,7 @@ static int routeQuery(
bool rses_is_closed;
rses_property_t* prop;
size_t len;
static bool transaction_active;
CHK_CLIENT_RSES(router_cli_ses);
@ -700,16 +701,27 @@ static int routeQuery(
case QUERY_TYPE_READ:
LOGIF(LT, (skygw_log_write_flush(
LOGFILE_TRACE,
"%lu [routeQuery:rwsplit] Query type\t%s, "
"routing to Slave.",
pthread_self(),
STRQTYPE(qtype))));
LOGIF(LT, tracelog_routed_query(router_cli_ses,
"routeQuery",
slave_dcb,
gwbuf_clone(querybuf)));
ret = slave_dcb->func.write(slave_dcb, querybuf);
LOGFILE_TRACE,
"%lu [routeQuery:rwsplit] Query type\t%s, "
"routing to %s.",
pthread_self(),
STRQTYPE(qtype),
(transaction_active ? "Master" : "Slave"))));
LOGIF(LT, tracelog_routed_query(
router_cli_ses,
"routeQuery",
(transaction_active ? master_dcb : slave_dcb),
gwbuf_clone(querybuf)));
if (transaction_active)
{
ret = master_dcb->func.write(master_dcb, querybuf);
}
else
{
ret = slave_dcb->func.write(slave_dcb, querybuf);
}
LOGIF(LT, (skygw_log_write_flush(
LOGFILE_TRACE,
"%lu [routeQuery:rwsplit] Routed.",
@ -807,6 +819,37 @@ static int routeQuery(
goto return_ret;
break;
case QUERY_TYPE_BEGIN_TRX:
transaction_active = true;
LOGIF(LT, tracelog_routed_query(router_cli_ses,
"routeQuery",
master_dcb,
gwbuf_clone(querybuf)));
ret = master_dcb->func.write(master_dcb, querybuf);
LOGIF(LT, (skygw_log_write_flush(
LOGFILE_TRACE,
"%lu [routeQuery:rwsplit] Routed.",
pthread_self())));
atomic_add(&inst->stats.n_master, 1);
goto return_ret;
break;
case QUERY_TYPE_COMMIT:
case QUERY_TYPE_ROLLBACK:
transaction_active = false;
LOGIF(LT, tracelog_routed_query(router_cli_ses,
"routeQuery",
master_dcb,
gwbuf_clone(querybuf)));
ret = master_dcb->func.write(master_dcb, querybuf);
LOGIF(LT, (skygw_log_write_flush(
LOGFILE_TRACE,
"%lu [routeQuery:rwsplit] Routed.",
pthread_self())));
atomic_add(&inst->stats.n_master, 1);
goto return_ret;
break;
default:
LOGIF(LT, (skygw_log_write(
LOGFILE_TRACE,