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MXS-1810: Store transaction contents

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The queries that make up the transaction are now stored in the router
session while the transaction is in progress. For the time being, the
queries are only used to log extra information about the transaction
contents.
This commit is contained in:
Markus Mäkelä
2018-04-19 09:47:25 +03:00
parent 53a5685dc2
commit 94038933d8
3 changed files with 31 additions and 4 deletions
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22
server/modules/routing/readwritesplit/rwsplitsession.cc
View File

@ -15,6 +15,8 @@
#include <cmath>
#include <maxscale/modutil.hh>
using namespace maxscale;
RWSplitSession::RWSplitSession(RWSplit* instance, MXS_SESSION* session,
@ -401,8 +403,7 @@ void RWSplitSession::clientReply(GWBUF *writebuf, DCB *backend_dcb)
if (session_trx_is_ending(m_client->session))
{
m_trx_checksum.finalize(writebuf);
MXS_INFO("Transaction checksum: %s", m_trx_checksum.hex().c_str());
close_transaction();
}
else if (session_trx_is_active(m_client->session))
{
@ -558,9 +559,8 @@ void RWSplitSession::handleError(GWBUF *errmsgbuf, DCB *problem_dcb,
if (session_trx_is_active(session))
{
// We have an open transaction, we can't continue
m_trx_checksum.finalize();
MXS_INFO("Checksum of failed transaction: %s", m_trx_checksum.hex().c_str());
can_continue = false;
close_transaction();
}
*succp = can_continue;
@ -760,3 +760,17 @@ bool RWSplitSession::supports_hint(HINT_TYPE hint_type) const
return rv;
}
void RWSplitSession::close_transaction()
{
m_trx_checksum.finalize();
MXS_INFO("Checksum of current transaction: %s", m_trx_checksum.hex().c_str());
int i = 1;
while (!m_trx_log.empty())
{
const int max_len = 1024;
MXS_INFO("%d: %s", i++, mxs::extract_sql(m_trx_log.front().get(), max_len).c_str());
m_trx_log.pop_front();
}
}