Hi list,
We have been testing GTM HA feature, and found a problem:
once gtm got failed, if someone or some AP accessed to
coordinator before gtm failover complete, gtm_standby can
never be reconnect to the cluster.
============================================================================
POSTGRES-XC BUG REPORT TEMPLATE
============================================================================
Your name : Hitoshi Hemmi
Your email address : hem...@la...
System Configuration:
---------------------
Architecture : x86_64
Operating Systems : CentOS release 6.2 x86_64
Postgres-XC version : Postgres-XC 1.0
Compilers used : gcc (GCC) 4.4.6 20110731 (Red Hat 4.4.6-3)
Description of problems:
==============================================
1. Simmulated failure of gtm
gtm_ctl stop -Z gtm -m immediate -D /home/postgres/data/gtm
2. Unluckily someone access to a coordinator
psql -p 5432 -c "SELECT * FROM pgxc_node;"
3. Promotion of gtm_standby
gtm_ctl promote -Z gtm -D /home/postgres/data/standby
4. Try to reconnet ...
gtm_ctl reconnect -Z gtm_proxy -D /home/postgres/data/gtm_proxy -o '-s localhost -t 7777'
5. BANG!
WARNING: can not connect to GTM: Connection refused
FATAL: Can not register Datanode on GTM
WARNING: can not connect to GTM: Connection refused
WARNING: can not connect to GTM: Connection refused
WARNING: Xid is invalid.
WARNING: can not connect to GTM: Connection refused
WARNING: can not connect to GTM: Connection refused
ERROR: GTM error, could not obtain snapshot
...
--
Hitoshi HEMMI
NTT Open Source Software Center
hem...@la...
(Please note that my address has changed.)
Tel:(03)5860-5115
Fax:(03)5463-5490
|
