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MXS-2592 Add configuration for session specific in-memory log

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When enabled each session will write log messages in the in-memory log.
If session ends in error this log is written to the actual log in disk.
This commit is contained in:
Marko
2019-07-24 18:29:58 +03:00
parent b07ffdb2fa
commit 918a2964d5
14 changed files with 176 additions and 16 deletions
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6
server/core/internal/session.hh
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@ -97,7 +97,7 @@ public:
};
typedef std::deque<QueryInfo> QueryInfos;
using Log = std::deque<std::string>;
using FilterList = std::vector<SessionFilter>;
Session(SERVICE* service);
@ -121,8 +121,11 @@ public:
void book_server_response(SERVER* pServer, bool final_response);
void book_last_as_complete();
void reset_server_bookkeeping();
void append_session_log(std::string);
void dump_session_log();
json_t* queries_as_json() const;
json_t* log_as_json() const;
void link_backend_dcb(DCB* dcb)
{
@ -148,6 +151,7 @@ private:
int m_current_query = -1; /*< The index of the current query */
DCBSet m_dcb_set; /*< Set of associated backend DCBs */
uint32_t m_retain_last_statements; /*< How many statements be retained */
Log m_log; /*< Session specific in-memory log */
};
}