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mod_status: Remove duplicate keys "BusyWorkers" and "IdleWorkers".

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Resolve inconsistency between the previous two occurrences by
counting workers in state SERVER_GRACEFUL no longer as busy,
but instead in a new counter "GracefulWorkers" (or on HTML
view as "workers gracefully restarting"). Also add the graceful
counter as a new column to the existing HTML per process table
for async MPMs.
PR 63300


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1909429 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Rainer Jung
2023-04-26 10:08:42 +00:00
parent 0544997f85
commit 1e801bec03
1 changed files with 23 additions and 25 deletions
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48
modules/generators/mod_status.c
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@ -186,7 +186,8 @@ static int status_handler(request_rec *r)
apr_uint32_t up_time;
ap_loadavg_t t;
int j, i, res, written;
int ready;
int idle;
int graceful;
int busy;
unsigned long count;
unsigned long lres, my_lres, conn_lres;
@ -203,6 +204,7 @@ static int status_handler(request_rec *r)
char *stat_buffer;
pid_t *pid_buffer, worker_pid;
int *thread_idle_buffer = NULL;
int *thread_graceful_buffer = NULL;
int *thread_busy_buffer = NULL;
clock_t tu, ts, tcu, tcs;
clock_t gu, gs, gcu, gcs;
@ -231,7 +233,8 @@ static int status_handler(request_rec *r)
#endif
#endif
ready = 0;
idle = 0;
graceful = 0;
busy = 0;
count = 0;
bcount = 0;
@ -250,6 +253,7 @@ static int status_handler(request_rec *r)
stat_buffer = apr_palloc(r->pool, server_limit * thread_limit * sizeof(char));
if (is_async) {
thread_idle_buffer = apr_palloc(r->pool, server_limit * sizeof(int));
thread_graceful_buffer = apr_palloc(r->pool, server_limit * sizeof(int));
thread_busy_buffer = apr_palloc(r->pool, server_limit * sizeof(int));
}
@ -318,6 +322,7 @@ static int status_handler(request_rec *r)
ps_record = ap_get_scoreboard_process(i);
if (is_async) {
thread_idle_buffer[i] = 0;
thread_graceful_buffer[i] = 0;
thread_busy_buffer[i] = 0;
}
for (j = 0; j < thread_limit; ++j) {
@ -336,18 +341,20 @@ static int status_handler(request_rec *r)
&& ps_record->pid) {
if (res == SERVER_READY) {
if (ps_record->generation == mpm_generation)
ready++;
idle++;
if (is_async)
thread_idle_buffer[i]++;
}
else if (res != SERVER_DEAD &&
res != SERVER_STARTING &&
res != SERVER_IDLE_KILL) {
busy++;
if (is_async) {
if (res == SERVER_GRACEFUL)
thread_idle_buffer[i]++;
else
if (res == SERVER_GRACEFUL)
graceful++;
if (is_async) {
thread_graceful_buffer[i]++;
} else {
busy++;
if (is_async)
thread_busy_buffer[i]++;
}
}
@ -548,10 +555,10 @@ static int status_handler(request_rec *r)
} /* ap_extended_status */
if (!short_report)
ap_rprintf(r, "<dt>%d requests currently being processed, "
"%d idle workers</dt>\n", busy, ready);
ap_rprintf(r, "<dt>%d requests currently being processed, %d workers gracefully restarting, "
"%d idle workers</dt>\n", busy, graceful, idle);
else
ap_rprintf(r, "BusyWorkers: %d\nIdleWorkers: %d\n", busy, ready);
ap_rprintf(r, "BusyWorkers: %d\nGracefulWorkers: %d\nIdleWorkers: %d\n", busy, graceful, idle);
if (!short_report)
ap_rputs("</dl>", r);
@ -559,11 +566,6 @@ static int status_handler(request_rec *r)
if (is_async) {
int write_completion = 0, lingering_close = 0, keep_alive = 0,
connections = 0, stopping = 0, procs = 0;
/*
* These differ from 'busy' and 'ready' in how gracefully finishing
* threads are counted. XXX: How to make this clear in the html?
*/
int busy_workers = 0, idle_workers = 0;
if (!short_report)
ap_rputs("\n\n<table rules=\"all\" cellpadding=\"1%\">\n"
"<tr><th rowspan=\"2\">Slot</th>"
@ -573,7 +575,7 @@ static int status_handler(request_rec *r)
"<th colspan=\"2\">Threads</th>"
"<th colspan=\"3\">Async connections</th></tr>\n"
"<tr><th>total</th><th>accepting</th>"
"<th>busy</th><th>idle</th>"
"<th>busy</th><th>graceful</th><th>idle</th>"
"<th>writing</th><th>keep-alive</th><th>closing</th></tr>\n", r);
for (i = 0; i < server_limit; ++i) {
ps_record = ap_get_scoreboard_process(i);
@ -582,8 +584,6 @@ static int status_handler(request_rec *r)
write_completion += ps_record->write_completion;
keep_alive += ps_record->keep_alive;
lingering_close += ps_record->lingering_close;
busy_workers += thread_busy_buffer[i];
idle_workers += thread_idle_buffer[i];
procs++;
if (ps_record->quiescing) {
stopping++;
@ -599,7 +599,7 @@ static int status_handler(request_rec *r)
ap_rprintf(r, "<tr><td>%u</td><td>%" APR_PID_T_FMT "</td>"
"<td>%s%s</td>"
"<td>%u</td><td>%s</td>"
"<td>%u</td><td>%u</td>"
"<td>%u</td><td>%u</td><td>%u</td>"
"<td>%u</td><td>%u</td><td>%u</td>"
"</tr>\n",
i, ps_record->pid,
@ -607,6 +607,7 @@ static int status_handler(request_rec *r)
ps_record->connections,
ps_record->not_accepting ? "no" : "yes",
thread_busy_buffer[i],
thread_graceful_buffer[i],
thread_idle_buffer[i],
ps_record->write_completion,
ps_record->keep_alive,
@ -618,25 +619,22 @@ static int status_handler(request_rec *r)
ap_rprintf(r, "<tr><td>Sum</td>"
"<td>%d</td><td>%d</td>"
"<td>%d</td><td>&nbsp;</td>"
"<td>%d</td><td>%d</td>"
"<td>%d</td><td>%d</td><td>%d</td>"
"<td>%d</td><td>%d</td><td>%d</td>"
"</tr>\n</table>\n",
procs, stopping,
connections,
busy_workers, idle_workers,
busy, graceful, idle,
write_completion, keep_alive, lingering_close);
}
else {
ap_rprintf(r, "Processes: %d\n"
"Stopping: %d\n"
"BusyWorkers: %d\n"
"IdleWorkers: %d\n"
"ConnsTotal: %d\n"
"ConnsAsyncWriting: %d\n"
"ConnsAsyncKeepAlive: %d\n"
"ConnsAsyncClosing: %d\n",
procs, stopping,
busy_workers, idle_workers,
connections,
write_completion, keep_alive, lingering_close);
}