From 099fb56a076bc69183f234ee78a432796c78a669 Mon Sep 17 00:00:00 2001
From: Rich Megginson <rmeggins@redhat.com>
Date: Thu, 16 Jan 2014 12:57:22 -0700
Subject: [PATCH 154/225] Ticket #47516 replication stops with excessive clock
skew
https://fedorahosted.org/389/ticket/47516
Reviewed by: nhosoi (Thanks!)
Branch: 389-ds-base-1.2.11
Fix Description: The previous fix was not adequate. Instead, the determination
of whether or not to ignore time skew should be determined in
csngen_adjust_time().
Platforms tested: RHEL6 x86_64
Flag Day: no
Doc impact: yes - document new config param
(cherry picked from commit 9f2b104b0938b21d7c9fe37c736d0e6328843aeb)
(cherry picked from commit a6ec074c6295a59938f313b4fe09430e8f601fab)
(cherry picked from commit b51a57b20386e506a7eb484b62d39bf249ef995f)
(cherry picked from commit d128dbde4bff3d9c523d58b5ff485d052edbaf92)
---
ldap/servers/plugins/replication/repl_extop.c | 11 ++---------
ldap/servers/slapd/csngen.c | 8 ++++++--
2 files changed, 8 insertions(+), 11 deletions(-)
diff --git a/ldap/servers/plugins/replication/repl_extop.c b/ldap/servers/plugins/replication/repl_extop.c
index cccebb4..92207df 100644
--- a/ldap/servers/plugins/replication/repl_extop.c
+++ b/ldap/servers/plugins/replication/repl_extop.c
@@ -835,19 +835,12 @@ multimaster_extop_StartNSDS50ReplicationRequest(Slapi_PBlock *pb)
rc = replica_update_csngen_state_ext (replica, supplier_ruv, replicacsn); /* too much skew */
if (rc == CSN_LIMIT_EXCEEDED)
{
- extern int config_get_ignore_time_skew();
-
slapi_log_error(SLAPI_LOG_FATAL, repl_plugin_name,
"conn=%" NSPRIu64 " op=%d repl=\"%s\": "
"Excessive clock skew from supplier RUV\n",
connid, opid, repl_root);
- if (!config_get_ignore_time_skew()) {
- response = NSDS50_REPL_EXCESSIVE_CLOCK_SKEW;
- goto send_response;
- } else {
- /* else just continue */
- rc = 0;
- }
+ response = NSDS50_REPL_EXCESSIVE_CLOCK_SKEW;
+ goto send_response;
}
else if (rc != 0)
{
diff --git a/ldap/servers/slapd/csngen.c b/ldap/servers/slapd/csngen.c
index 7e0bdb6..3ec7620 100644
--- a/ldap/servers/slapd/csngen.c
+++ b/ldap/servers/slapd/csngen.c
@@ -315,6 +315,8 @@ int csngen_adjust_time (CSNGen *gen, const CSN* csn)
time_t remote_time, remote_offset, cur_time;
PRUint16 remote_seqnum;
int rc;
+ extern int config_get_ignore_time_skew();
+ int ignore_time_skew = config_get_ignore_time_skew();
if (gen == NULL || csn == NULL)
return CSN_INVALID_PARAMETER;
@@ -369,7 +371,7 @@ int csngen_adjust_time (CSNGen *gen, const CSN* csn)
remote_offset = remote_time - cur_time;
if (remote_offset > gen->state.remote_offset)
{
- if (remote_offset <= CSN_MAX_TIME_ADJUST)
+ if (ignore_time_skew || (remote_offset <= CSN_MAX_TIME_ADJUST))
{
gen->state.remote_offset = remote_offset;
}
@@ -640,6 +642,8 @@ _csngen_cmp_callbacks (const void *el1, const void *el2)
static int
_csngen_adjust_local_time (CSNGen *gen, time_t cur_time)
{
+ extern int config_get_ignore_time_skew();
+ int ignore_time_skew = config_get_ignore_time_skew();
time_t time_diff = cur_time - gen->state.sampled_time;
if (time_diff == 0) {
@@ -703,7 +707,7 @@ _csngen_adjust_local_time (CSNGen *gen, time_t cur_time)
gen->state.remote_offset);
}
- if (abs (time_diff) > CSN_MAX_TIME_ADJUST)
+ if (!ignore_time_skew && (abs (time_diff) > CSN_MAX_TIME_ADJUST))
{
slapi_log_error (SLAPI_LOG_FATAL, NULL, "_csngen_adjust_local_time: "
"adjustment limit exceeded; value - %d, limit - %d\n",
--
1.8.1.4