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Re: contextCSN
jakjr wrote:
Hello,
I'm testing a multi-master installation of openldap 2.4.11 (debian lenny).
To check if the masters are consistent, I search for the contextCSN of each
one, and check this value.
If the values are the same, the masters are consistents, rigth ??
But now, after many, many changes (ADD/DELETE), I am searching for the
contextCSN and the server is reporting three contextCSN's.
Is this correct ??
EG:
# ldapsearch -x -h <IP> objectClass=organization contextCSN -b
dc=pr,dc=gov,dc=br -LLL -z 1
dn: dc=org
contextCSN: 20081226121401.392297Z#000000#000#000000
contextCSN: 20081226173429.931124Z#000000#001#000000
contextCSN: 20081226173327.189304Z#000000#002#000000
It is not an indication of an error, at least. Each value belongs to
one server. Look at the three digits towards the end: they indicate the
server ID of the server the CSN belongs to. The "000" refers to
modifications performed when the pool was not multimaster yet. The
"001" refers to the server with SID 1, and the "002" to the server with
SID 2. They should be in sync.
Please note that the order is not preserved, so you could see, for example,
contextCSN: 20081226121401.392297Z#000000#000#000000
contextCSN: 20081226173429.931124Z#000000#001#000000
contextCSN: 20081226173327.189304Z#000000#002#000000
on one server, and
contextCSN: 20081226173327.189304Z#000000#002#000000
contextCSN: 20081226173429.931124Z#000000#001#000000
contextCSN: 20081226121401.392297Z#000000#000#000000
on another one.
p.
Ing. Pierangelo Masarati
OpenLDAP Core Team
SysNet s.r.l.
via Dossi, 8 - 27100 Pavia - ITALIA
http://www.sys-net.it
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Fax: +39 0382 476497
Email: ando@sys-net.it
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