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389-ds-base/SOURCES/0008-Issue-6096-Improve-con...

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From 6e5f03d5872129963106024f53765234a282406c Mon Sep 17 00:00:00 2001
From: James Chapman <jachapma@redhat.com>
Date: Fri, 16 Feb 2024 11:13:16 +0000
Subject: [PATCH] Issue 6096 - Improve connection timeout error logging (#6097)
Bug description: When a paged result search is run with a time limit,
if the time limit is exceed the server closes the connection with
closed IO timeout (nsslapd-ioblocktimeout) - T2. This error message
is incorrect as the reason the connection has been closed was because
the specified time limit on a paged result search has been exceeded.
Fix description: Correct error message
Relates: https://github.com/389ds/389-ds-base/issues/6096
Reviewed by: @tbordaz (Thank you)
---
ldap/admin/src/logconv.pl | 24 ++++++++++++++++++-
ldap/servers/slapd/daemon.c | 4 ++--
ldap/servers/slapd/disconnect_error_strings.h | 1 +
ldap/servers/slapd/disconnect_errors.h | 2 +-
4 files changed, 27 insertions(+), 4 deletions(-)
diff --git a/ldap/admin/src/logconv.pl b/ldap/admin/src/logconv.pl
index 7698c383a..2a933c4a3 100755
--- a/ldap/admin/src/logconv.pl
+++ b/ldap/admin/src/logconv.pl
@@ -267,7 +267,7 @@ my $optimeAvg = 0;
my %cipher = ();
my @removefiles = ();
-my @conncodes = qw(A1 B1 B4 T1 T2 B2 B3 R1 P1 P2 U1);
+my @conncodes = qw(A1 B1 B4 T1 T2 T3 B2 B3 R1 P1 P2 U1);
my %conn = ();
map {$conn{$_} = $_} @conncodes;
@@ -355,6 +355,7 @@ $connmsg{"B1"} = "Bad Ber Tag Encountered";
$connmsg{"B4"} = "Server failed to flush data (response) back to Client";
$connmsg{"T1"} = "Idle Timeout Exceeded";
$connmsg{"T2"} = "IO Block Timeout Exceeded or NTSSL Timeout";
+$connmsg{"T3"} = "Paged Search Time Limit Exceeded";
$connmsg{"B2"} = "Ber Too Big";
$connmsg{"B3"} = "Ber Peek";
$connmsg{"R1"} = "Revents";
@@ -1723,6 +1724,10 @@ if ($usage =~ /j/i || $verb eq "yes"){
print "\n $recCount. You have some coonections that are being closed by the ioblocktimeout setting. You may want to increase the ioblocktimeout.\n";
$recCount++;
}
+ if (defined($conncount->{"T3"}) and $conncount->{"T3"} > 0){
+ print "\n $recCount. You have some connections that are being closed because a paged result search limit has been exceeded. You may want to increase the search time limit.\n";
+ $recCount++;
+ }
# compare binds to unbinds, if the difference is more than 30% of the binds, then report a issue
if (($bindCount - $unbindCount) > ($bindCount*.3)){
print "\n $recCount. You have a significant difference between binds and unbinds. You may want to investigate this difference.\n";
@@ -2366,6 +2371,7 @@ sub parseLineNormal
$brokenPipeCount++;
if (m/- T1/){ $hashes->{rc}->{"T1"}++; }
elsif (m/- T2/){ $hashes->{rc}->{"T2"}++; }
+ elsif (m/- T3/){ $hashes->{rc}->{"T3"}++; }
elsif (m/- A1/){ $hashes->{rc}->{"A1"}++; }
elsif (m/- B1/){ $hashes->{rc}->{"B1"}++; }
elsif (m/- B4/){ $hashes->{rc}->{"B4"}++; }
@@ -2381,6 +2387,7 @@ sub parseLineNormal
$connResetByPeerCount++;
if (m/- T1/){ $hashes->{src}->{"T1"}++; }
elsif (m/- T2/){ $hashes->{src}->{"T2"}++; }
+ elsif (m/- T3/){ $hashes->{src}->{"T3"}++; }
elsif (m/- A1/){ $hashes->{src}->{"A1"}++; }
elsif (m/- B1/){ $hashes->{src}->{"B1"}++; }
elsif (m/- B4/){ $hashes->{src}->{"B4"}++; }
@@ -2396,6 +2403,7 @@ sub parseLineNormal
$resourceUnavailCount++;
if (m/- T1/){ $hashes->{rsrc}->{"T1"}++; }
elsif (m/- T2/){ $hashes->{rsrc}->{"T2"}++; }
+ elsif (m/- T3/){ $hashes->{rsrc}->{"T3"}++; }
elsif (m/- A1/){ $hashes->{rsrc}->{"A1"}++; }
elsif (m/- B1/){ $hashes->{rsrc}->{"B1"}++; }
elsif (m/- B4/){ $hashes->{rsrc}->{"B4"}++; }
@@ -2494,6 +2502,20 @@ sub parseLineNormal
}
}
}
+ if (m/- T3/){
+ if ($_ =~ /conn= *([0-9A-Z]+)/i) {
+ $exc = "no";
+ $ip = getIPfromConn($1, $serverRestartCount);
+ for (my $xxx = 0; $xxx < $#excludeIP; $xxx++){
+ if ($ip eq $excludeIP[$xxx]){$exc = "yes";}
+ }
+ if ($exc ne "yes"){
+ $hashes->{T3}->{$ip}++;
+ $hashes->{conncount}->{"T3"}++;
+ $connCodeCount++;
+ }
+ }
+ }
if (m/- B2/){
if ($_ =~ /conn= *([0-9A-Z]+)/i) {
$exc = "no";
diff --git a/ldap/servers/slapd/daemon.c b/ldap/servers/slapd/daemon.c
index 5a48aa66f..bb80dae36 100644
--- a/ldap/servers/slapd/daemon.c
+++ b/ldap/servers/slapd/daemon.c
@@ -1599,9 +1599,9 @@ setup_pr_read_pds(Connection_Table *ct)
int add_fd = 1;
/* check timeout for PAGED RESULTS */
if (pagedresults_is_timedout_nolock(c)) {
- /* Exceeded the timelimit; disconnect the client */
+ /* Exceeded the paged search timelimit; disconnect the client */
disconnect_server_nomutex(c, c->c_connid, -1,
- SLAPD_DISCONNECT_IO_TIMEOUT,
+ SLAPD_DISCONNECT_PAGED_SEARCH_LIMIT,
0);
connection_table_move_connection_out_of_active_list(ct,
c);
diff --git a/ldap/servers/slapd/disconnect_error_strings.h b/ldap/servers/slapd/disconnect_error_strings.h
index f7a31d728..c2d9e283b 100644
--- a/ldap/servers/slapd/disconnect_error_strings.h
+++ b/ldap/servers/slapd/disconnect_error_strings.h
@@ -27,6 +27,7 @@ ER2(SLAPD_DISCONNECT_BER_FLUSH, "B4")
ER2(SLAPD_DISCONNECT_IDLE_TIMEOUT, "T1")
ER2(SLAPD_DISCONNECT_REVENTS, "R1")
ER2(SLAPD_DISCONNECT_IO_TIMEOUT, "T2")
+ER2(SLAPD_DISCONNECT_PAGED_SEARCH_LIMIT, "T3")
ER2(SLAPD_DISCONNECT_PLUGIN, "P1")
ER2(SLAPD_DISCONNECT_UNBIND, "U1")
ER2(SLAPD_DISCONNECT_POLL, "P2")
diff --git a/ldap/servers/slapd/disconnect_errors.h b/ldap/servers/slapd/disconnect_errors.h
index a0484f1c2..e118f674c 100644
--- a/ldap/servers/slapd/disconnect_errors.h
+++ b/ldap/servers/slapd/disconnect_errors.h
@@ -35,6 +35,6 @@
#define SLAPD_DISCONNECT_SASL_FAIL SLAPD_DISCONNECT_ERROR_BASE + 12
#define SLAPD_DISCONNECT_PROXY_INVALID_HEADER SLAPD_DISCONNECT_ERROR_BASE + 13
#define SLAPD_DISCONNECT_PROXY_UNKNOWN SLAPD_DISCONNECT_ERROR_BASE + 14
-
+#define SLAPD_DISCONNECT_PAGED_SEARCH_LIMIT SLAPD_DISCONNECT_ERROR_BASE + 15
#endif /* __DISCONNECT_ERRORS_H_ */
--
2.45.0
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