Hello,

I have configured three mirrors and am using a python script (ldapSynchCheck.py) which check the sync status on retrieving the contextCSN from both Provider and consumer

I tried deleting a tree from directory and checked what is the output of the script and can still see “All of them are in sync”. I believe this is happening because contextCSN is not getting updated on the respective directories and hence it will showing all in sync.

However sometimes I am getting below error and it seems one of the consumer changed its contextCSN while provider was synching the data and it also confirms that provider will not change the contextCSN until it completes the sync to the consumer.

2010-05-06 15:15:51,459 - ldapSynchCheck.py - INFO - Provider is: tardis03.nat.bt.com:389

2010-05-06 15:15:51,462 - ldapSynchCheck.py - DEBUG - Connecting to ldap://tardis03.nat.bt.com:389

2010-05-06 15:15:51,464 - ldapSynchCheck.py - DEBUG - LDAP protocol version 3

2010-05-06 15:15:51,465 - ldapSynchCheck.py - DEBUG - Binding with o=BT

2010-05-06 15:15:51,469 - ldapSynchCheck.py - INFO - Checking if consumer tardis02.nat.bt.com:9011 is in SYNCH with provider

2010-05-06 15:15:51,470 - ldapSynchCheck.py - DEBUG - Connecting to ldap://tardis02.nat.bt.com:9011

2010-05-06 15:15:51,471 - ldapSynchCheck.py - DEBUG - LDAP protocol version 3

2010-05-06 15:15:51,472 - ldapSynchCheck.py - DEBUG - Binding with o=BT

2010-05-06 15:15:51,475 - ldapSynchCheck.py - DEBUG - Retrieving Provider contextCSN

2010-05-06 15:15:51,482 - ldapSynchCheck.py - DEBUG - contextCSN = 20100506141551.044268Z#000000#003#000000

2010-05-06 15:15:51,483 - ldapSynchCheck.py - DEBUG - Retrieving Consumer contextCSN

2010-05-06 15:15:51,513 - ldapSynchCheck.py - DEBUG - contextCSN = 20100506141551.044268Z#000000#003#000000

2010-05-06 15:15:51,515 - ldapSynchCheck.py - INFO -   Provider and consumer exactly in SYNCH

2010-05-06 15:15:51,516 - ldapSynchCheck.py - INFO - Checking if consumer tardis01.nat.bt.com:9022 is in SYNCH with provider

2010-05-06 15:15:51,517 - ldapSynchCheck.py - DEBUG - Connecting to ldap://tardis01.nat.bt.com:9022

2010-05-06 15:15:51,519 - ldapSynchCheck.py - DEBUG - LDAP protocol version 3

2010-05-06 15:15:51,520 - ldapSynchCheck.py - DEBUG - Binding with o=BT

2010-05-06 15:15:51,523 - ldapSynchCheck.py - DEBUG - Retrieving Provider contextCSN

2010-05-06 15:15:51,525 - ldapSynchCheck.py - DEBUG - contextCSN = 20100506141551.044268Z#000000#003#000000

2010-05-06 15:15:51,526 - ldapSynchCheck.py - DEBUG - Retrieving Consumer contextCSN

2010-05-06 15:15:51,573 - ldapSynchCheck.py - DEBUG - contextCSN = 20100506141549.755004Z#000000#003#000000 <here it goes different>

Traceback (most recent call last):

  File "./ldapSynchCheck.py", line 258, in <module>

    main()

  File "./ldapSynchCheck.py", line 253, in main

    is_insynch(ldapprov, ldapcons, options.basedn, options.threshold, logger)

  File "./ldapSynchCheck.py", line 188, in is_insynch

    delta = contextCSN_to_datetime(provcontextCSN) - contextCSN_to_datetime(conscontextCSN)

  File "./ldapSynchCheck.py", line 155, in contextCSN_to_datetime

    return datetime.datetime.fromtimestamp(time.mktime(time.strptime(gentime,"%Y%m%d%H%M%S")))

  File "/software/python/lib/python2.6/_strptime.py", line 454, in _strptime_time

    return _strptime(data_string, format)[0]

  File "/software/python/lib/python2.6/_strptime.py", line 328, in _strptime

    data_string[found.end():])

ValueError: unconverted data remains: .044268

As I know putting a frequent checkpoint will generate a large amount of checkpoint log file and will cause issues while database recovery during crash/corrupt situations.

Can someone please suggest how make this more precise? Is there any other way contextCSN keeps on changing frequently?

Please suggest.

Many Thanks in advance!!

Rahul Manchanda

GS Selfcare

Platform Build Team

Tel: +91 02066018100 Extn: 6178

SMTP: rahul.manchanda@bt.com

Office: Sharda Center ,6th Floor Annex

Off Karve Road, Erandwana ,Pune-04