From 7076fd22e744fd51dbcc0c4e4a4089884a3dae48 Mon Sep 17 00:00:00 2001 From: Christian Heimes Date: Wed, 11 Apr 2018 13:34:41 +0200 Subject: [PATCH] Add nsds5ReplicaReleaseTimeout to replica config The nsds5ReplicaReleaseTimeout setting prevents the monopolization of replicas during initial or busy master-master replication. 389-DS documentation suggets a timeout of 60 seconds to improve convergence of replicas. See: http://directory.fedoraproject.org/docs/389ds/design/repl-conv-design.html Fixes: https://pagure.io/freeipa/issue/7488 Signed-off-by: Christian Heimes Reviewed-By: Florence Blanc-Renaud Reviewed-By: Fraser Tweedale Reviewed-By: Florence Blanc-Renaud --- ipaserver/install/replication.py | 21 ++++++++++++++++----- ipaserver/install/server/upgrade.py | 17 +++++++++++++++++ 2 files changed, 33 insertions(+), 5 deletions(-) diff --git a/ipaserver/install/replication.py b/ipaserver/install/replication.py index 3cd871e5df44398fd994504a3807a5648af5e048..e0055b792ce5b51fd411a7ea1f4316bb017984ba 100644 --- a/ipaserver/install/replication.py +++ b/ipaserver/install/replication.py @@ -468,20 +468,30 @@ class ReplicationManager(object): try: entry = conn.get_entry(dn) + except errors.NotFound: + pass + else: managers = {DN(m) for m in entry.get('nsDS5ReplicaBindDN', [])} + mods = [] if replica_binddn not in managers: # Add the new replication manager - mod = [(ldap.MOD_ADD, 'nsDS5ReplicaBindDN', - replica_binddn)] - conn.modify_s(dn, mod) + mods.append( + (ldap.MOD_ADD, 'nsDS5ReplicaBindDN', replica_binddn) + ) + if 'nsds5replicareleasetimeout' not in entry: + # See https://pagure.io/freeipa/issue/7488 + mods.append( + (ldap.MOD_ADD, 'nsds5replicareleasetimeout', ['60']) + ) + + if mods: + conn.modify_s(dn, mods) self.set_replica_binddngroup(conn, entry) # replication is already configured return - except errors.NotFound: - pass replica_type = self.get_replica_type() @@ -496,6 +506,7 @@ class ReplicationManager(object): nsds5replicabinddn=[replica_binddn], nsds5replicabinddngroup=[self.repl_man_group_dn], nsds5replicabinddngroupcheckinterval=["60"], + nsds5replicareleasetimeout=["60"], nsds5replicalegacyconsumer=["off"], ) conn.add_entry(entry) diff --git a/ipaserver/install/server/upgrade.py b/ipaserver/install/server/upgrade.py index 62665d56ca0fb2c632f8ba135f8b6191a18b6aa1..62a75510ad331923f468c28908ea407789ec380c 100644 --- a/ipaserver/install/server/upgrade.py +++ b/ipaserver/install/server/upgrade.py @@ -1565,6 +1565,19 @@ def disable_httpd_system_trust(http): db.add_cert(cert, nickname, trust_flags) +def update_replica_config(db_suffix): + dn = DN( + ('cn', 'replica'), ('cn', db_suffix), ('cn', 'mapping tree'), + ('cn', 'config') + ) + entry = api.Backend.ldap2.get_entry(dn) + if 'nsds5replicareleasetimeout' not in entry: + # See https://pagure.io/freeipa/issue/7488 + root_logger.info("Adding nsds5replicaReleaseTimeout=60 to %s", dn) + entry['nsds5replicareleasetimeout'] = '60' + api.Backend.ldap2.update_entry(entry) + + def upgrade_configuration(): """ Execute configuration upgrade of the IPA services @@ -1681,6 +1694,10 @@ def upgrade_configuration(): ds.configure_dirsrv_ccache() + update_replica_config(ipautil.realm_to_suffix(api.env.realm)) + if ca.is_configured(): + update_replica_config(DN(('o', 'ipaca'))) + ntpinstance.ntp_ldap_enable(api.env.host, api.env.basedn, api.env.realm) ds.stop(ds_serverid) -- 2.14.3