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log_manager.cc

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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
2013-11-08 12:56:39 +02:00
parent 594f1c294f
commit 9ba7a0d955
15 changed files with 973 additions and 442 deletions
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8
server/modules/protocol/mysql_common.c
View File

@ -328,7 +328,7 @@ int gw_receive_backend_auth(
(uint8_t *)calloc(1, GWBUF_LENGTH(head)+1);
memcpy(tmpbuf, ptr, GWBUF_LENGTH(head));
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [gw_receive_backend_auth] Invalid "
"authentication message from backend dcb %p "
"fd %d, ptr[4] = %p, msg %s.",
@ -358,7 +358,7 @@ int gw_receive_backend_auth(
*/
rc = 0;
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [gw_receive_backend_auth] Read zero bytes from "
"backend dcb %p fd %d in state %s. n %d, head %p, len %d",
pthread_self(),
@ -374,7 +374,7 @@ int gw_receive_backend_auth(
ss_dassert(n < 0 && head == NULL);
rc = -1;
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [gw_receive_backend_auth] Reading from backend dcb %p "
"fd %d in state %s failed. n %d, head %p, len %d",
pthread_self(),
@ -672,7 +672,7 @@ int gw_do_connect_to_backend(
}
*fd = so;
skygw_log_write_flush(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [gw_do_connect_to_backend] Connected to backend server "
"%s:%d, fd %d.",
pthread_self(),