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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
Download Patch File Download Diff File Expand all files Collapse all files

1066
log_manager/log_manager.cc
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File diff suppressed because it is too large Load Diff

7
log_manager/log_manager.h
View File

@ -27,13 +27,10 @@ typedef enum {
LOGFILE_FIRST = LOGFILE_ERROR,
LOGFILE_MESSAGE = 2,
LOGFILE_TRACE = 4,
LOGFILE_LAST = LOGFILE_TRACE
LOGFILE_DEBUG = 8,
LOGFILE_LAST = LOGFILE_DEBUG
} logfile_id_t;
/**
* This is for the future where LOGFILE_DEBUG has separate file.
*/
#define LOGFILE_DEBUG LOGFILE_TRACE
typedef enum { FILEWRITER_INIT, FILEWRITER_RUN, FILEWRITER_DONE }
filewriter_state_t;

43
server/core/dcb.c
View File

@ -106,10 +106,6 @@ if ((rval = calloc(1, sizeof(DCB))) == NULL)
rval->dcb_chk_tail = CHK_NUM_DCB;
#endif
rval->dcb_role = role;
simple_mutex_init(&rval->dcb_write_lock, "DCB write mutex");
simple_mutex_init(&rval->dcb_read_lock, "DCB read mutex");
rval->dcb_write_active = false;
rval->dcb_read_active = false;
spinlock_init(&rval->dcb_initlock);
spinlock_init(&rval->writeqlock);
spinlock_init(&rval->delayqlock);
@ -169,7 +165,13 @@ dcb_add_to_zombieslist(DCB *dcb)
spinlock_release(&zombiespin);
return;
}
#if 1
/**
* Add closing dcb to the top of the list.
*/
dcb->memdata.next = zombies;
zombies = dcb;
#else
if (zombies == NULL) {
zombies = dcb;
} else {
@ -199,6 +201,7 @@ dcb_add_to_zombieslist(DCB *dcb)
ptr->memdata.next = dcb;
}
}
#endif
/**
* Set state which indicates that it has been added to zombies
* list.
@ -319,7 +322,7 @@ bool succp = false;
{
/*
* Remove the DCB from the zombie queue
* and call the final free routine for the
* and call the final free routine for the
* DCB
*
* ptr is the DCB we are processing
@ -334,7 +337,7 @@ bool succp = false;
else
lptr->memdata.next = tptr;
skygw_log_write_flush(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [dcb_process_zombies] Remove dcb %p fd %d "
"in state %s from zombies list.",
pthread_self(),
@ -389,7 +392,7 @@ bool succp = false;
#if defined(SS_DEBUG)
else {
skygw_log_write_flush(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [dcb_process_zombies] Closed socket "
"%d on dcb %p.",
pthread_self(),
@ -454,7 +457,7 @@ int rc;
if (!session_link_dcb(session, dcb))
{
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [dcb_connect] Failed to link to session, the "
"session has been removed.",
pthread_self());
@ -465,7 +468,7 @@ int rc;
if (fd == -1) {
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [dcb_connect] Failed to connect to server %s:%d, "
"from backend dcb %p, client dcp %p fd %d.",
pthread_self(),
@ -479,7 +482,7 @@ int rc;
return NULL;
} else {
skygw_log_write_flush(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [dcb_connect] Connected to server %s:%d, "
"from backend dcb %p, client dcp %p fd %d.",
pthread_self(),
@ -621,7 +624,7 @@ int eno = 0;
goto return_n;
}
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [dcb_read] Read %d bytes from dcb %p in state %s "
"fd %d.",
pthread_self(),
@ -671,7 +674,7 @@ dcb_write(DCB *dcb, GWBUF *queue)
dcb->writeq = gwbuf_append(dcb->writeq, queue);
dcb->stats.n_buffered++;
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [dcb_write] Append to writequeue. %d writes "
"buffered for dcb %p in state %s fd %d",
pthread_self(),
@ -722,7 +725,7 @@ dcb_write(DCB *dcb, GWBUF *queue)
if (saved_errno == EPIPE) {
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [dcb_write] Write to dcb "
"%p in state %s fd %d failed "
"due errno %d, %s",
@ -754,7 +757,7 @@ dcb_write(DCB *dcb, GWBUF *queue)
*/
queue = gwbuf_consume(queue, w);
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [dcb_write] Wrote %d Bytes to dcb %p in "
"state %s fd %d",
pthread_self(),
@ -853,7 +856,7 @@ int saved_errno = 0;
*/
dcb->writeq = gwbuf_consume(dcb->writeq, w);
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [dcb_drain_writeq] Wrote %d Bytes to dcb %p "
"in state %s fd %d",
pthread_self(),
@ -902,8 +905,8 @@ dcb_close(DCB *dcb)
}
ss_dassert(dcb->state == DCB_STATE_POLLING ||
dcb->state == DCB_STATE_NOPOLLING ||
dcb->state == DCB_STATE_ZOMBIE);
dcb->state == DCB_STATE_NOPOLLING ||
dcb->state == DCB_STATE_ZOMBIE);
/**
* Stop dcb's listening and modify state accordingly.
@ -915,7 +918,7 @@ dcb_close(DCB *dcb)
if (rc == 0) {
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [dcb_close] Removed dcb %p in state %s from "
"poll set.",
pthread_self(),
@ -1262,7 +1265,7 @@ static bool dcb_set_state_nomutex(
if (succp) {
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [dcb_set_state_nomutex] dcb %p fd %d %s -> %s",
pthread_self(),
dcb,

28
server/core/gateway.c
View File

@ -112,24 +112,23 @@ static void sighup_handler (int i)
}
static void sigterm_handler (int i) {
extern void shutdown_gateway();
extern void shutdown_server();
skygw_log_write_flush(
LOGFILE_ERROR,
"Error : Signal SIGTERM %i received ...Exiting!", i);
shutdown_gateway();
"MaxScale received signal SIGTERM. Exiting.");
shutdown_server();
}
static void
sigint_handler (int i)
{
extern void shutdown_gateway();
extern void shutdown_server();
skygw_log_write_flush(
LOGFILE_ERROR,
"Error : Signal SIGINT %i received ...Exiting!",
i);
shutdown_gateway();
"MaxScale received signal SIGINT. Shutting down.");
shutdown_server();
fprintf(stderr, "\n\nShutting down MaxScale\n\n");
}
@ -485,15 +484,17 @@ main(int argc, char **argv)
if (home)
{
char buf[1024];
char *argv[4];
char *argv[6];
sprintf(buf, "%s/log", home);
mkdir(buf, 0777);
argv[0] = "MaxScale";
argv[1] = "-g";
argv[1] = "-j";
argv[2] = buf;
argv[3] = NULL;
skygw_logmanager_init(3, argv);
argv[3] = "-s"; /**<! store to shared memory.. */
argv[4] = "LOGFILE_DEBUG,LOGFILE_TRACE"; /**<! ..these logs */
argv[5] = NULL;
skygw_logmanager_init(5, argv);
}
if (cnf_file == NULL) {
@ -614,10 +615,10 @@ main(int argc, char **argv)
} // End of main
/**
* Shutdown the gateway
* Shutdown MaxScale server
*/
void
shutdown_gateway()
shutdown_server()
{
poll_shutdown();
log_flush_shutdown();
@ -638,6 +639,7 @@ static void log_flush_cb(
skygw_log_flush(LOGFILE_ERROR);
skygw_log_flush(LOGFILE_MESSAGE);
skygw_log_flush(LOGFILE_TRACE);
skygw_log_flush(LOGFILE_DEBUG);
usleep(timeout_ms*1000);
}
skygw_log_write(LOGFILE_MESSAGE, "Finished MaxScale log flusher.");

38
server/core/poll.c
View File

@ -344,8 +344,8 @@ poll_waitevents(void *arg)
ss_dassert(dcb->state != DCB_STATE_FREED);
ss_debug(spinlock_release(&dcb->dcb_initlock);)
skygw_log_write_flush(
LOGFILE_DEBUG,
skygw_log_write(
LOGFILE_TRACE,
"%lu [poll_waitevents] event %d dcb %p "
"role %s",
pthread_self(),
@ -388,7 +388,7 @@ poll_waitevents(void *arg)
eno = gw_getsockerrno(dcb->fd);
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [poll_waitevents] "
"EPOLLHUP on dcb %p, fd %d. "
"Errno %d, %s.",
@ -406,25 +406,13 @@ poll_waitevents(void *arg)
eno = gw_getsockerrno(dcb->fd);
if (eno == 0) {
#if 0
simple_mutex_lock(
&dcb->dcb_write_lock,
true);
ss_info_dassert(
!dcb->dcb_write_active,
"Write already active");
dcb->dcb_write_active = TRUE;
#endif
atomic_add(&pollStats.n_write, 1);
atomic_add(
&pollStats.n_write,
1);
dcb->func.write_ready(dcb);
#if 0
dcb->dcb_write_active = FALSE;
simple_mutex_unlock(
&dcb->dcb_write_lock);
#endif
} else {
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [poll_waitevents] "
"EPOLLOUT due %d, %s. "
"dcb %p, fd %i",
@ -437,13 +425,6 @@ poll_waitevents(void *arg)
}
if (ev & EPOLLIN)
{
#if 0
simple_mutex_lock(&dcb->dcb_read_lock,
true);
ss_info_dassert(!dcb->dcb_read_active,
"Read already active");
dcb->dcb_read_active = TRUE;
#endif
if (dcb->state == DCB_STATE_LISTENING)
{
skygw_log_write(
@ -468,11 +449,6 @@ poll_waitevents(void *arg)
atomic_add(&pollStats.n_read, 1);
dcb->func.read(dcb);
}
#if 0
dcb->dcb_read_active = FALSE;
simple_mutex_unlock(
&dcb->dcb_read_lock);
#endif
}
} /**< for */
no_op = FALSE;

6
server/include/dcb.h
View File

@ -156,11 +156,7 @@ typedef struct dcb {
#endif
dcb_role_t dcb_role;
SPINLOCK dcb_initlock;
simple_mutex_t dcb_read_lock;
simple_mutex_t dcb_write_lock;
int fd; /**< The descriptor */
bool dcb_read_active;
bool dcb_write_active;
int fd; /**< The descriptor */
dcb_state_t state; /**< Current descriptor state */
char *remote; /**< Address of remote end */
void *protocol; /**< The protocol specific state */

22
server/modules/protocol/mysql_backend.c
View File

@ -253,7 +253,7 @@ static int gw_read_backend_event(DCB *dcb) {
backend_protocol->state = MYSQL_IDLE;
skygw_log_write_flush(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [gw_read_backend_event] "
"gw_receive_backend_auth succeed. "
"dcb %p fd %d, user %s.",
@ -265,7 +265,7 @@ static int gw_read_backend_event(DCB *dcb) {
default:
ss_dassert(receive_rc == 0);
skygw_log_write_flush(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [gw_read_backend_event] "
"gw_receive_backend_auth read "
"successfully "
@ -436,7 +436,7 @@ static int gw_write_backend_event(DCB *dcb) {
"Writing to backend failed due invalid Maxscale "
"state.");
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [gw_write_backend_event] Write to backend "
"dcb %p fd %d "
"failed due invalid state %s.",
@ -454,7 +454,7 @@ static int gw_write_backend_event(DCB *dcb) {
rc = 0;
} else {
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [gw_write_backend_event] Dcb %p in state %s "
"but there's nothing to write either.",
pthread_self(),
@ -474,7 +474,7 @@ static int gw_write_backend_event(DCB *dcb) {
rc = 1;
return_rc:
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [gw_write_backend_event] "
"wrote to dcb %p fd %d, return %d",
pthread_self(),
@ -508,7 +508,7 @@ gw_MySQLWrite_backend(DCB *dcb, GWBUF *queue)
gwbuf_consume(queue, GWBUF_LENGTH(queue));
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [gw_MySQLWrite_backend] Write to backend failed. "
"Backend dcb %p fd %d is %s.",
pthread_self(),
@ -602,7 +602,7 @@ static int gw_error_backend_event(DCB *dcb) {
* rsession should never be NULL here.
*/
skygw_log_write_flush(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [gw_error_backend_event] "
"Call closeSession for backend "
"session.",
@ -641,7 +641,7 @@ static int gw_create_backend_connection(
if (protocol == NULL) {
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [gw_create_backend_connection] Failed to create "
"protocol object for backend connection.",
pthread_self());
@ -664,7 +664,7 @@ static int gw_create_backend_connection(
protocol->fd = fd;
protocol->state = MYSQL_CONNECTED;
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [gw_create_backend_connection] Established "
"connection to %s:%i, protocol fd %d client "
"fd %d.",
@ -680,7 +680,7 @@ static int gw_create_backend_connection(
protocol->state = MYSQL_PENDING_CONNECT;
protocol->fd = fd;
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [gw_create_backend_connection] Connection "
"pending to %s:%i, protocol fd %d client fd %d.",
pthread_self(),
@ -694,7 +694,7 @@ static int gw_create_backend_connection(
ss_dassert(fd == -1);
ss_dassert(protocol->state == MYSQL_ALLOC);
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [gw_create_backend_connection] Connection "
"failed to %s:%i, protocol fd %d client fd %d.",
pthread_self(),

4
server/modules/protocol/mysql_client.c
View File

@ -977,7 +977,7 @@ int gw_MySQLAccept(DCB *listener)
listener->stats.n_accepts++;
#if defined(SS_DEBUG)
skygw_log_write_flush(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [gw_MySQLAccept] Accepted fd %d.",
pthread_self(),
c_sock);
@ -1046,7 +1046,7 @@ int gw_MySQLAccept(DCB *listener)
else
{
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [gw_MySQLAccept] Added dcb %p for fd "
"%d to epoll set.",
pthread_self(),

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(),

51
server/modules/routing/debugcmd.c
View File

@ -114,7 +114,7 @@ struct subcommand showoptions[] = {
{0, 0, 0} }
};
extern void shutdown_gateway();
extern void shutdown_maxscale();
static void shutdown_service(DCB *dcb, SERVICE *service);
static void shutdown_monitor(DCB *dcb, MONITOR *monitor);
@ -122,16 +122,37 @@ static void shutdown_monitor(DCB *dcb, MONITOR *monitor);
* The subcommands of the shutdown command
*/
struct subcommand shutdownoptions[] = {
{ "maxscale", 0, shutdown_gateway, "Shutdown the MaxScale gateway",
{0, 0, 0} },
{ "monitor", 1, shutdown_monitor, "Shutdown a monitor, e.g. shutdown monitor 0x48381e0",
{ARG_TYPE_ADDRESS, 0, 0} },
{ "service", 1, shutdown_service, "Shutdown a service, e.g. shutdown service 0x4838320",
{ARG_TYPE_ADDRESS, 0, 0} },
{ NULL, 0, NULL, NULL,
{0, 0, 0} }
{ "maxscale",
0,
shutdown_maxscale,
"Shutdown MaxScale",
{0, 0, 0}
},
{
"monitor",
1,
shutdown_monitor,
"Shutdown a monitor, e.g. shutdown monitor 0x48381e0",
{ARG_TYPE_ADDRESS, 0, 0}
},
{
"service",
1,
shutdown_service,
"Shutdown a service, e.g. shutdown service 0x4838320",
{ARG_TYPE_ADDRESS, 0, 0}
},
{
NULL,
0,
NULL,
NULL,
{0, 0, 0}
}
};
static void restart_service(DCB *dcb, SERVICE *service);
static void restart_monitor(DCB *dcb, MONITOR *monitor);
/**
@ -216,8 +237,8 @@ struct subcommand disableoptions[] = {
"log",
1,
disable_log_action,
"Disable Log for MaxScale, Options: trace | error | message E.g. "
"disable log trace",
"Disable Log for MaxScale, Options: debug | trace | error | message "
"E.g. disable log debug",
{ARG_TYPE_STRING, 0, 0}
},
{
@ -726,7 +747,9 @@ static void enable_log_action(DCB *dcb, char *arg1) {
logfile_id_t type;
int max_len = strlen("message");
if (strncmp(arg1, "trace", max_len) == 0) {
if (strncmp(arg1, "debug", max_len) == 0) {
type = LOGFILE_DEBUG;
} else if (strncmp(arg1, "trace", max_len) == 0) {
type = LOGFILE_TRACE;
} else if (strncmp(arg1, "error", max_len) == 0) {
type = LOGFILE_ERROR;
@ -748,7 +771,9 @@ static void disable_log_action(DCB *dcb, char *arg1) {
logfile_id_t type;
int max_len = strlen("message");
if (strncmp(arg1, "trace", max_len) == 0) {
if (strncmp(arg1, "debug", max_len) == 0) {
type = LOGFILE_DEBUG;
} else if (strncmp(arg1, "trace", max_len) == 0) {
type = LOGFILE_TRACE;
} else if (strncmp(arg1, "error", max_len) == 0) {
type = LOGFILE_ERROR;

8
server/modules/routing/readconnroute.c
View File

@ -282,7 +282,7 @@ BACKEND *candidate = NULL;
int i;
skygw_log_write_flush(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [newSession] new router session with session "
"%p, and inst %p.",
pthread_self(),
@ -322,7 +322,7 @@ int i;
for (i = 0; inst->servers[i]; i++) {
if(inst->servers[i]) {
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [newSession] Examine server in port %d with "
"%d connections. Status is %d, "
"inst->bitvalue is %d",
@ -383,7 +383,7 @@ int i;
atomic_add(&candidate->current_connection_count, 1);
client_rses->backend = candidate;
skygw_log_write(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [newSession] Selected server in port %d. "
"Connections : %d\n",
pthread_self(),
@ -465,7 +465,7 @@ static void freeSession(
spinlock_release(&router->lock);
skygw_log_write_flush(
LOGFILE_TRACE,
LOGFILE_DEBUG,
"%lu [freeSession] Unlinked router_client_session %p from "
"router %p and from server on port %d. Connections : %d. ",
pthread_self(),

18
server/modules/routing/readwritesplit/readwritesplit.c
View File

@ -547,14 +547,16 @@ static int routeQuery(
"%s.",
STRPACKETTYPE(packet_type),
STRQTYPE(qtype),
querystr,
(querystr == NULL ? "(empty)" : querystr),
(rses_is_closed ? "Router was closed" :
"Router has no backend servers where to route to"));
goto return_ret;
}
skygw_log_write(LOGFILE_TRACE, "String\t\"%s\"", querystr);
skygw_log_write(LOGFILE_TRACE,
"String\t\"%s\"",
querystr == NULL ? "(empty)" : querystr);
skygw_log_write(LOGFILE_TRACE,
"Packet type\t%s",
STRPACKETTYPE(packet_type));
@ -590,7 +592,7 @@ static int routeQuery(
case QUERY_TYPE_SESSION_WRITE:
skygw_log_write(LOGFILE_TRACE,
"%lu [routeQuery:rwsplit] Query type\t%s, "
"routing to All servers.",
"routing to all servers.",
pthread_self(),
STRQTYPE(qtype));
/**
@ -865,8 +867,8 @@ static bool search_backend_servers(
if (be != NULL) {
skygw_log_write(
LOGFILE_TRACE,
"%lu [search_backend_servers] Examine server %s:%d "
"with %d connections. Status is %d, "
"%lu [search_backend_servers] Examine server "
"%s:%d with %d connections. Status is %d, "
"router->bitvalue is %d",
pthread_self(),
be->backend_server->name,
@ -931,7 +933,8 @@ static bool search_backend_servers(
succp = false;
skygw_log_write_flush(
LOGFILE_ERROR,
"Error : Couldn't find suitable Slave from %d candidates.",
"Error : Couldn't find suitable Slave from %d "
"candidates.",
i);
}
@ -939,7 +942,8 @@ static bool search_backend_servers(
succp = false;
skygw_log_write_flush(
LOGFILE_ERROR,
"Error : Couldn't find suitable Master from %d candidates.",
"Error : Couldn't find suitable Master from %d "
"candidates.",
i);
}

51
utils/skygw_debug.h
View File

@ -19,6 +19,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <limits.h>
#define __USE_UNIX98 1
#include <pthread.h>
@ -120,16 +121,19 @@ typedef enum skygw_chk_t {
} skygw_chk_t;
# define STRBOOL(b) ((b) ? "true" : "false")
# define STRQTYPE(t) ((t) == QUERY_TYPE_WRITE ? "QUERY_TYPE_WRITE" : \
((t) == QUERY_TYPE_READ ? "QUERY_TYPE_READ" : \
((t) == QUERY_TYPE_SESSION_WRITE ? "QUERY_TYPE_SESSION_WRITE" : \
((t) == QUERY_TYPE_UNKNOWN ? "QUERY_TYPE_UNKNWON" : \
((t) == QUERY_TYPE_LOCAL_READ ? "QUERY_TYPE_LOCAL_READ" : \
"Unknown query type")))))
#define STRLOGID(i) ((i) == LOGFILE_TRACE ? "LOGFILE_TRACE" : \
((i) == LOGFILE_MESSAGE ? "LOGFILE_MESSAGE" : \
((i) == LOGFILE_ERROR ? "LOGFILE_ERROR" : \
"Unknown logfile type")))
((i) == LOGFILE_MESSAGE ? "LOGFILE_MESSAGE" : \
((i) == LOGFILE_ERROR ? "LOGFILE_ERROR" : \
((i) == LOGFILE_DEBUG ? "LOGFILE_DEBUG" : \
"Unknown logfile type"))))
#define STRPACKETTYPE(p) ((p) == COM_INIT_DB ? "COM_INIT_DB" : \
((p) == COM_CREATE_DB ? "COM_CREATE_DB" : \
@ -285,11 +289,11 @@ typedef enum skygw_chk_t {
ss_info_dassert((n->slnode_chk_top == CHK_NUM_SLIST_NODE && \
n->slnode_chk_tail == CHK_NUM_SLIST_NODE), \
"Single-linked list node under- or overflow"); \
}
}
#define CHK_SLIST_CURSOR(c) { \
ss_info_dassert(c->slcursor_chk_top == CHK_NUM_SLIST_CURSOR && \
c->slcursor_chk_tail == CHK_NUM_SLIST_CURSOR, \
ss_info_dassert(c->slcursor_chk_top == CHK_NUM_SLIST_CURSOR && \
c->slcursor_chk_tail == CHK_NUM_SLIST_CURSOR, \
"List cursor under- or overflow"); \
ss_info_dassert(c->slcursor_list != NULL, \
"List cursor doesn't have list"); \
@ -297,34 +301,35 @@ typedef enum skygw_chk_t {
(c->slcursor_pos == NULL && \
c->slcursor_list->slist_head == NULL), \
"List cursor doesn't have position"); \
}
}
#define CHK_QUERY_TEST(q) { \
ss_info_dassert(q->qt_chk_top == CHK_NUM_QUERY_TEST && \
q->qt_chk_tail == CHK_NUM_QUERY_TEST, \
"Query test under- or overflow."); \
}
#define CHK_QUERY_TEST(q) { \
ss_info_dassert(q->qt_chk_top == CHK_NUM_QUERY_TEST && \
q->qt_chk_tail == CHK_NUM_QUERY_TEST, \
"Query test under- or overflow."); \
}
#define CHK_LOGFILE(lf) { \
ss_info_dassert(lf->lf_chk_top == CHK_NUM_LOGFILE && \
ss_info_dassert(lf->lf_chk_top == CHK_NUM_LOGFILE && \
lf->lf_chk_tail == CHK_NUM_LOGFILE, \
"Logfile struct under- or overflow"); \
ss_info_dassert(lf->lf_logpath != NULL && \
lf->lf_name_prefix != NULL && \
lf->lf_name_suffix != NULL && \
lf->lf_full_name != NULL, \
"NULL in name variable\n"); \
ss_info_dassert(lf->lf_filepath != NULL && \
lf->lf_name_prefix != NULL && \
lf->lf_name_suffix != NULL && \
lf->lf_full_file_name != NULL, \
"NULL in name variable\n"); \
ss_info_dassert(lf->lf_id >= LOGFILE_FIRST && \
lf->lf_id <= LOGFILE_LAST, \
"Invalid logfile id\n"); \
lf->lf_id <= LOGFILE_LAST, \
"Invalid logfile id\n"); \
ss_debug( \
(lf->lf_chk_top != CHK_NUM_LOGFILE || \
lf->lf_chk_tail != CHK_NUM_LOGFILE ? \
false : \
(lf->lf_logpath == NULL || \
(lf->lf_filepath == NULL || \
lf->lf_name_prefix == NULL || \
lf->lf_name_suffix == NULL || \
lf->lf_full_name == NULL ? false : true)); \
}
lf->lf_full_file_name == NULL ? false : true));) \
}
#define CHK_FILEWRITER(fwr) { \
ss_info_dassert(fwr->fwr_chk_top == CHK_NUM_FILEWRITER && \

47
utils/skygw_utils.cc
View File

@ -279,8 +279,9 @@ mlist_node_t* mlist_detach_nodes(
* @return Address of mlist_t struct.
*
*
* @details Cursor must protect its reads with read lock, and after acquiring
* read lock reader must check whether the list is deleted (mlist_deleted).
* @details Cursor must protect its reads with read lock, and after
* acquiring read lock reader must check whether the list is deleted
* (mlist_deleted).
*
*/
mlist_t* mlist_init(
@ -1240,8 +1241,10 @@ simple_mutex_t* simple_mutex_init(
sm = (simple_mutex_t *)calloc(1, sizeof(simple_mutex_t));
}
ss_dassert(sm != NULL);
#if defined(SS_DEBUG)
sm->sm_chk_top = CHK_NUM_SIMPLE_MUTEX;
sm->sm_chk_tail = CHK_NUM_SIMPLE_MUTEX;
#endif
sm->sm_name = name;
/** Create pthread mutex */
@ -1746,8 +1749,8 @@ return_succp:
}
skygw_file_t* skygw_file_init(
char* fname)
char* fname,
char* symlinkname)
{
skygw_file_t* file;
@ -1780,10 +1783,13 @@ skygw_file_t* skygw_file_init(
setvbuf(file->sf_file, NULL, _IONBF, 0);
if (!file_write_header(file)) {
int eno = errno;
errno = 0;
fprintf(stderr,
"* Writing header of log file %s failed.\n",
file->sf_fname);
perror("SkyGW file open\n");
"* Writing header of log file %s failed due %d, %s.\n",
file->sf_fname,
eno,
strerror(eno));
free(file);
file = NULL;
goto return_file;
@ -1791,6 +1797,33 @@ skygw_file_t* skygw_file_init(
CHK_FILE(file);
ss_dfprintf(stderr, "Opened %s\n", file->sf_fname);
/**
* Create symlink to newly created file if name was provided.
*/
if (symlinkname != NULL)
{
int rc;
unlink(symlinkname);
rc = symlink(fname, symlinkname);
if (rc != 0)
{
int eno = errno;
errno = 0;
fprintf(stderr,
"failed to create symlink %s -> "
"%s due %d, %s. Exiting.",
fname,
symlinkname,
eno,
strerror(eno));
free(file);
file = NULL;
goto return_file;
}
}
return_file:
return file;
}

2
utils/skygw_utils.h
View File

@ -145,7 +145,7 @@ EXTERN_C_BLOCK_END
/** Skygw thread routines */
/** Skygw file routines */
skygw_file_t* skygw_file_init(char* fname);
skygw_file_t* skygw_file_init(char* fname, char* symlinkname);
void skygw_file_done(skygw_file_t* file);
bool skygw_file_write(
skygw_file_t* file,