BUG/MINOR: stats: Prevent HTTP "other sessions" counter underflows
Due to multithreading concurrency, it is difficult at this time to figure
out how this counter may become negative. This simple patch only checks this
will never be the case.
This issue arrives with this commit:
"9969adbcdc MINOR: stats: add by HTTP version cumulated number of sessions and requests"
So, this patch should be backported when the latter has been backported.
diff --git a/src/stats.c b/src/stats.c
index 62e372a..960fcbf 100644
--- a/src/stats.c
+++ b/src/stats.c
@@ -1876,6 +1876,7 @@
total_sess = px->fe_counters.cum_sess;
for (i = 0; i < nb_sess; i++)
total_sess -= px->fe_counters.cum_sess_ver[i];
+ total_sess = (int64_t)total_sess < 0 ? 0 : total_sess;
metric = mkf_u64(FN_COUNTER, total_sess);
break;
}