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Initial implementation of transaction safety

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Initial implementation of transaction safety
This commit is contained in:
MassimilianoPinto
2015-08-05 14:29:17 +02:00
parent 619261cd21
commit f91a339674
5 changed files with 836 additions and 39 deletions
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23
server/modules/routing/binlog/blr.c
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@ -268,6 +268,9 @@ int rc = 0;
inst->m_errno = 0;
inst->m_errmsg = NULL;
inst->trx_safe = 0;
inst->pending_transaction = 0;
my_uuid_init((ulong)rand()*12345,12345);
if ((defuuid = (unsigned char *)malloc(20)) != NULL)
{
@ -348,6 +351,10 @@ int rc = 0;
{
inst->initbinlog = atoi(value);
}
else if (strcmp(options[i], "transaction_safety") == 0)
{
inst->trx_safe = atoi(value);
}
else if (strcmp(options[i], "lowwater") == 0)
{
inst->low_water = atoi(value);
@ -414,6 +421,8 @@ int rc = 0;
service->name)));
}
fprintf(stderr, "Transaction safety is [%i]\n", inst->trx_safe);
if (inst->fileroot == NULL)
inst->fileroot = strdup(BINLOG_NAME_ROOT);
inst->active_logs = 0;
@ -426,6 +435,8 @@ int rc = 0;
inst->lastEventTimestamp = 0;
inst->binlog_position = 0;
inst->current_pos = 0;
strcpy(inst->binlog_name, "");
strcpy(inst->prevbinlog, "");
@ -602,6 +613,18 @@ int rc = 0;
* Now start the replication from the master to MaxScale
*/
if (inst->master_state == BLRM_UNCONNECTED) {
/* NOTE: This setting will be replaced by calling
* blr_read_events_all() routine soon
* The routine may truncate binlog file or put
* master_state into BLR_SLAVE_STOPPED state.
* If an open transaction is detected @ pos xxx
* inst->binlog_position will be set to xxx
*/
if (inst->binlog_position == 0)
inst->binlog_position = inst->current_pos;
/* Start replication from master server */
blr_start_master(inst);
}