log_manager.cc
Added new argument '-s' which takes additional argument composed of list of logfile identifiers. Logfiles listed with '-s' will be written on main memory instead of disk. In practice, the log file in question will be written in /dev/shm but corresponding symlink is added to log directory. In the case of name conflicts with log files and links, a differentiating sequence number is included in hte name of the file. This, however, is done only when existing file is not writable or is of different type (symlink <> file). Added new logfile LOGFILE_DEBUG whose contents will be largerly what was included up to date in trace log. Disabled feature which spreads writes to log files to others because of bug (#338) in the way block buffers are managed. Changed log manager parameters to match with the current implementation. List of arguments: "-h - help\n" "-a <debug prefix> ............(\"skygw_debug\")\n" "-b <debug suffix> ............(\".log\")\n" "-c <trace prefix> ............(\"skygw_trace\")\n" "-d <trace suffix> ............(\".log\")\n" "-e <message prefix> ............(\"skygw_msg\")\n" "-f <message suffix> ............(\".log\")\n" "-g <error prefix> ............(\"skygw_err\")\n" "-i <error suffix> ............(\".log\")\n" "-j <log path> ............(\"/tmp\")\n" "-s <shmem log file ids> ........(no default)\n"; dcb.c dcb_add_to_zombieslist, add dcb to the front of zombies list instead of inserting to the end of it. gateway.c Renamed shutdown_gateway to shutdown_server (Bug #131) Call skygw_logmanager_init so that trace and debug logs are written to shared memory. poll.c dcb.h Removed some dead code and references to unneeded mutexes. debugcmd.c Added enable/disable log command for debug log. skygw_utils.cc skygw_file_init now takes optional symlink name as a second argument. Symlink is created to point to the file being created.
This commit is contained in:
vraatikka
@ -253,7 +253,7 @@ static int gw_read_backend_event(DCB *dcb) {
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backend_protocol->state = MYSQL_IDLE;
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skygw_log_write_flush(
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LOGFILE_TRACE,
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LOGFILE_DEBUG,
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"%lu [gw_read_backend_event] "
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"gw_receive_backend_auth succeed. "
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"dcb %p fd %d, user %s.",
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@ -265,7 +265,7 @@ static int gw_read_backend_event(DCB *dcb) {
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default:
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ss_dassert(receive_rc == 0);
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skygw_log_write_flush(
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LOGFILE_TRACE,
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LOGFILE_DEBUG,
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"%lu [gw_read_backend_event] "
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"gw_receive_backend_auth read "
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"successfully "
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@ -436,7 +436,7 @@ static int gw_write_backend_event(DCB *dcb) {
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"Writing to backend failed due invalid Maxscale "
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"state.");
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skygw_log_write(
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LOGFILE_TRACE,
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LOGFILE_DEBUG,
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"%lu [gw_write_backend_event] Write to backend "
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"dcb %p fd %d "
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"failed due invalid state %s.",
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@ -454,7 +454,7 @@ static int gw_write_backend_event(DCB *dcb) {
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rc = 0;
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} else {
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skygw_log_write(
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LOGFILE_TRACE,
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LOGFILE_DEBUG,
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"%lu [gw_write_backend_event] Dcb %p in state %s "
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"but there's nothing to write either.",
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pthread_self(),
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@ -474,7 +474,7 @@ static int gw_write_backend_event(DCB *dcb) {
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rc = 1;
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return_rc:
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skygw_log_write(
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LOGFILE_TRACE,
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LOGFILE_DEBUG,
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"%lu [gw_write_backend_event] "
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"wrote to dcb %p fd %d, return %d",
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pthread_self(),
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@ -508,7 +508,7 @@ gw_MySQLWrite_backend(DCB *dcb, GWBUF *queue)
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gwbuf_consume(queue, GWBUF_LENGTH(queue));
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skygw_log_write(
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LOGFILE_TRACE,
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LOGFILE_DEBUG,
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"%lu [gw_MySQLWrite_backend] Write to backend failed. "
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"Backend dcb %p fd %d is %s.",
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pthread_self(),
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@ -602,7 +602,7 @@ static int gw_error_backend_event(DCB *dcb) {
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* rsession should never be NULL here.
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*/
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skygw_log_write_flush(
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LOGFILE_TRACE,
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LOGFILE_DEBUG,
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"%lu [gw_error_backend_event] "
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"Call closeSession for backend "
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"session.",
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@ -641,7 +641,7 @@ static int gw_create_backend_connection(
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if (protocol == NULL) {
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skygw_log_write(
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LOGFILE_TRACE,
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LOGFILE_DEBUG,
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"%lu [gw_create_backend_connection] Failed to create "
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"protocol object for backend connection.",
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pthread_self());
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@ -664,7 +664,7 @@ static int gw_create_backend_connection(
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protocol->fd = fd;
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protocol->state = MYSQL_CONNECTED;
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skygw_log_write(
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LOGFILE_TRACE,
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LOGFILE_DEBUG,
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"%lu [gw_create_backend_connection] Established "
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"connection to %s:%i, protocol fd %d client "
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"fd %d.",
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@ -680,7 +680,7 @@ static int gw_create_backend_connection(
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protocol->state = MYSQL_PENDING_CONNECT;
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protocol->fd = fd;
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skygw_log_write(
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LOGFILE_TRACE,
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LOGFILE_DEBUG,
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"%lu [gw_create_backend_connection] Connection "
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"pending to %s:%i, protocol fd %d client fd %d.",
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pthread_self(),
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@ -694,7 +694,7 @@ static int gw_create_backend_connection(
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ss_dassert(fd == -1);
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ss_dassert(protocol->state == MYSQL_ALLOC);
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skygw_log_write(
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LOGFILE_TRACE,
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LOGFILE_DEBUG,
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"%lu [gw_create_backend_connection] Connection "
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"failed to %s:%i, protocol fd %d client fd %d.",
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pthread_self(),
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