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MXS-2311: Write queued packet one at a time

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If an ignorable packet was followed by more than one queued packets, they
would all get routed in the same batch. This would cause unexpected
replies from the server if multiple ignorable packets were queued up.
This commit is contained in:
Markus Mäkelä
2019-02-08 14:15:34 +02:00
parent 1be845c438
commit 46484b4e11
1 changed files with 1 additions and 1 deletions
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2
server/modules/protocol/MySQL/mariadbbackend/mysql_backend.c
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@ -877,7 +877,7 @@ gw_read_and_write(DCB *dcb)
if (proto->ignore_replies > 0) if (proto->ignore_replies > 0)
{ {
/** The reply to a COM_CHANGE_USER is in packet */ /** The reply to a COM_CHANGE_USER is in packet */
GWBUF *query = proto->stored_query; GWBUF* query = modutil_get_next_MySQL_packet(&proto->stored_query);
proto->stored_query = NULL; proto->stored_query = NULL;
proto->ignore_replies--; proto->ignore_replies--;
ss_dassert(proto->ignore_replies >= 0); ss_dassert(proto->ignore_replies >= 0);