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fix alloc local session with same sid leads memory damage

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This commit is contained in:
ls0
2022-04-06 10:55:46 +08:00
committed by LINxiansheng
parent 21163c4fdb
commit 518fd3552f
3 changed files with 15 additions and 8 deletions
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5
src/sql/session/ob_sql_session_mgr.h
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@ -47,6 +47,7 @@ public:
static const uint32_t NON_DURABLE_VALUE = 0;
static const uint32_t MAX_VERSION = UINT8_MAX; // 255
static const uint32_t SERVER_SESSID_TAG = 1ULL << 31;
static const uint32_t LOCAL_SESSID_TAG = 0; // used for sessions overflow
typedef SessionInfoKey Key;
explicit ObSQLSessionMgr(storage::ObPartitionService* partition_service)
: // null_callback_(),
@ -121,11 +122,11 @@ public:
}
static int is_need_clear_sessid(const observer::ObSMConnection* conn, bool& is_need);
int fetch_first_sessid();
int create_sessid(uint32_t& sessid);
// in_mgr = false means fail back to local session allocating, avoid remote/distribute executing fail
int create_sessid(uint32_t& sessid, bool in_mgr = true);
int mark_sessid_used(uint32_t sess_id);
int mark_sessid_unused(uint32_t sess_id);
// inline ObNullEndTransCallback &get_null_callback() { return null_callback_; }
private:
int create_session_by_version(
uint64_t tenant_id, uint32_t sessid, uint64_t proxy_sessid, ObSQLSessionInfo*& sess_info, uint32_t& out_version);
int get_avaiable_local_seq(uint32_t& local_seq);