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Track transaction end as well as start

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The COMMIT and ROLLBACK are now detected. This can be used to route the
trailing end of a transaction to a specific server.
This commit is contained in:
Markus Mäkelä
2017-01-24 11:09:58 +02:00
parent 6bcf0b1fd6
commit 81be935fa9
3 changed files with 30 additions and 6 deletions
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2
server/core/session.c
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@ -897,6 +897,8 @@ const char* session_trx_state_to_string(mxs_session_trx_state_t state)
return "SESSION_TRX_READ_ONLY";
case SESSION_TRX_READ_WRITE:
return "SESSION_TRX_READ_WRITE";
case SESSION_TRX_ENDING:
return "SESSION_TRX_ENDING";
}
MXS_ERROR("Unknown session_trx_state_t value: %d", (int)state);

7
server/modules/protocol/MySQL/MySQLClient/mysql_client.c
View File

@ -1483,6 +1483,11 @@ static int route_by_statement(MXS_SESSION* session, uint64_t capabilities, GWBUF
{
uint8_t *data = GWBUF_DATA(packetbuf);
if (session_trx_is_ending(session))
{
session_set_trx_state(session, SESSION_TRX_INACTIVE);
}
if (MYSQL_GET_COMMAND(data) == MYSQL_COM_QUERY)
{
uint32_t type = qc_get_type_mask(packetbuf);
@ -1515,7 +1520,7 @@ static int route_by_statement(MXS_SESSION* session, uint64_t capabilities, GWBUF
}
else if ((type & QUERY_TYPE_COMMIT) || (type & QUERY_TYPE_ROLLBACK))
{
session_set_trx_state(session, SESSION_TRX_INACTIVE);
session_set_trx_state(session, SESSION_TRX_ENDING);
if (type & QUERY_TYPE_ENABLE_AUTOCOMMIT)
{