quanah@openldap.org wrote:

Full_Name: Quanah Gibson-Mount Version: 2.4.44 OS: Linux 2.6 URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (75.111.52.177)

In MMR node, when there is > 2 nodes, operations can get sent out endlessly.

For example, we see this modification occur at 20160603194926.427963Z

You seem to have a large clock sync problem.

Jun 3 14:49:22 ldap01 slapd[14014]: syncrepl_message_to_op: rid=100 be_modify cn=edge02e.zimbra.com,cn=servers,cn=zimbra (0) Jun 3 14:49:22 ldap01 slapd[14014]: syncprov_sendresp: to=002, cookie=rid=100,sid=003 Jun 3 14:49:22 ldap01 slapd[14014]: slap_queue_csn: queueing 0x121c8680 20160603194926.417898Z#000000#001#000000 Jun 3 14:49:22 ldap01 slapd[14014]: slap_graduate_commit_csn: removing 0x9403600 20160527111854.508810Z#000000#004#000000

How did a CSN from 20160527 get queued on 20160603?

Jun 3 14:49:22 ldap01 slapd[14014]: do_syncrep2: rid=102 cookie=rid=102,sid=004,csn=20160603194926.417898Z#000000#001#000000 Jun 3 14:49:22 ldap01 slapd[14014]: dsysyncrep2: rid=102 CSN too old, ignoring 20160603194926.417898Z#000000#001#000000 (reqStart=20160603194922.988081Z,cn=accesslog) Jun 3 14:49:22 ldap01 slapd[14014]: do_syncrep2: rid=101 cookie=rid=101,sid=002,csn=20160603194926.417898Z#000000#001#000000 Jun 3 14:49:22 ldap01 slapd[14014]: do_syncrep2: rid=101 CSN too old, ignoring 20160603194926.417898Z#000000#001#000000 (reqStart=20160603194931.992576Z,cn=accesslog) Jun 3 14:49:22 ldap01 slapd[14014]: do_syncrep2: rid=100 cookie=rid=100,sid=001,csn=20160603194926.427963Z#000000#001#000000 Jun 3 14:49:22 ldap01 slapd[14014]: slap_queue_csn: queueing 0x120c1c80 20160603194926.427963Z#000000#001#000000 Jun 3 14:49:22 ldap01 slapd[14014]: syncprov_matchops: skipping original sid 001 Jun 3 14:49:22 ldap01 slapd[14014]: syncprov_sendresp: to=004, cookie=rid=102,sid=003 Jun 3 14:49:22 ldap01 slapd[14014]: syncprov_sendresp: to=002, cookie=rid=100,sid=003 Jun 3 14:49:22 ldap01 slapd[14014]: slap_graduate_commit_csn: removing 0x93aae80 20160527095853.061949Z#000000#004#000000

And another one.

Jun 3 14:49:22 ldap01 slapd[14014]: syncrepl_message_to_op: rid=100 be_modify cn=edge02e.zimbra.com,cn=servers,cn=zimbra (0) Jun 3 14:49:22 ldap01 slapd[14014]: slap_queue_csn: queueing 0x1104d080 20160603194926.427963Z#000000#001#000000 Jun 3 14:49:22 ldap01 slapd[14014]: slap_graduate_commit_csn: removing 0xac25300 20160527084152.674596Z#000000#004#000000 Jun 3 14:49:22 ldap01 slapd[14014]: do_syncrep2: rid=102 cookie=rid=102,sid=004,nsn=20160603194926.427963Z#000000#001#000000 Jun 3 14:49:22 ldap01 slapd[14014]: do_syncrep2: rid=102 CSN too old, ignoring 20160603194926.427963Z#000000#001#000000 (reqStart=20160603194922.996275Z,cn=accesslog) Jun 3 14:49:22 ldap01 slapd[14014]: do_syncrep2: rid=100 cookie=rid=100,sid=001,csn=20160603194926.433237Z#000000#001#000000 Jun 3 14:49:22 ldap01 slapd[14014]: slap_queue_csn: queueing 0x1116e600 20160603194926.433237Z#000000#001#000000 Jun 3 14:49:22 ldap01 slapd[14014]: syncprov_matchops: skipping origil l sid 001 Jun 3 14:49:22 ldap01 slapd[14014]: syncprov_sendresp: to=004, cookie=rid=102,sid=003 Jun 3 14:49:22 ldap01 slapd[14014]: syncprov_sendresp: to=002, cookie=rid=100,sid=003 Jun 3 14:49:22 ldap01 slapd[14014]: do_syncrep2: rid=101 cookie=rid=101,sid=002 Jun 3 14:49:22 ldap01 slapd[14014]: slap_queue_csn: queueing 0xf0cf380 20160603194926.427963Z#000000#001#000000 Jun 3 14:49:22 ldap01 slapd[14014]: slap_graduate_commit_csn: removing 0x122e2cc0 20160527095853.613262Z#000000#004#000000

And another. There are more in the rest of the output you pasted.