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change the xid construction method of dblink

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This commit is contained in:
obdev
2023-07-20 09:18:19 +00:00
committed by ob-robot
parent feef090117
commit a2ac8c138f
2 changed files with 27 additions and 5 deletions
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30
src/storage/tx/ob_xa_dblink_service.cpp
View File

@ -39,17 +39,39 @@ int ObXAService::generate_xid(const ObTransID &tx_id, ObXATransID &new_xid)
int64_t txid_value = tx_id.get_id();
static const char *DBLINK_STR = "DBLINK.";
static const int DBLINK_STR_LENGTH = 7;
char txid_str[ObXATransID::MAX_GTRID_LENGTH] = {0};
char txid_str[ObXATransID::MAX_GTRID_LENGTH];
memset(txid_str, 0, ObXATransID::MAX_GTRID_LENGTH);
int txid_str_length = sprintf(txid_str, "%ld", txid_value);
if (ObXATransID::MAX_GTRID_LENGTH < txid_str_length + DBLINK_STR_LENGTH) {
ret = OB_ERR_UNEXPECTED;
TRANS_LOG(WARN, "unexpected gtrid length", K(ret), K(txid_str_length));
} else {
char gtrid_str[ObXATransID::MAX_GTRID_LENGTH] = {0};
char gtrid_str[ObXATransID::MAX_GTRID_LENGTH];
memset(gtrid_str, 0, ObXATransID::MAX_GTRID_LENGTH);
strncpy(gtrid_str, DBLINK_STR, DBLINK_STR_LENGTH);
strncpy(gtrid_str + DBLINK_STR_LENGTH, txid_str, txid_str_length);
ObString gtrid_string = ObString(DBLINK_STR_LENGTH + txid_str_length, gtrid_str);
ret = new_xid.set(gtrid_string, BQUAL_STRING, DBLINK_FORMAT_ID);
ObString gtrid_string;
if (GCONF.self_addr_.using_ipv4()) {
char ip_port[MAX_IP_PORT_LENGTH];
int ip_str_length = 0;
memset(ip_port, 0, MAX_IP_PORT_LENGTH);
if (OB_FAIL(GCONF.self_addr_.addr_to_buffer(ip_port, MAX_IP_PORT_LENGTH, ip_str_length))) {
TRANS_LOG(WARN, "convert server to string failed", K(ret), K(tx_id));
} else if (ObXATransID::MAX_GTRID_LENGTH < 1 + ip_str_length + txid_str_length + DBLINK_STR_LENGTH) {
ret = OB_ERR_UNEXPECTED;
TRANS_LOG(WARN, "unexpected gtrid length", K(ret), K(tx_id), K(txid_str_length), K(ip_port), K(ip_str_length));
} else {
const char *comma = ",";
strncpy(gtrid_str + DBLINK_STR_LENGTH + txid_str_length, comma, 1);
strncpy(gtrid_str + DBLINK_STR_LENGTH + txid_str_length + 1, ip_port, ip_str_length);
gtrid_string = ObString(DBLINK_STR_LENGTH + txid_str_length + 1 + ip_str_length, gtrid_str);
}
} else {
gtrid_string = ObString(DBLINK_STR_LENGTH + txid_str_length, gtrid_str);
}
if (OB_SUCC(ret)) {
ret = new_xid.set(gtrid_string, BQUAL_STRING, DBLINK_FORMAT_ID);
}
}
return ret;

2
src/storage/tx/ob_xa_define.h
View File

@ -269,7 +269,7 @@ private:
// format id of dblink trans
// from Oracle
static const int32_t DBLINK_FORMAT_ID = 306206;
static const int32_t DBLINK_FORMAT_ID = 830487;
class ObXADefault
{
public: