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From: Tejeswar M. <tej...@ho...> - 2012-04-04 17:09:24
|
Hi, I have a quick question on a GTM behavior We are a starting a new initiative and exploring PG-XC for our Cloud-database. I installed a 2 node PG-XC cluster and in one of the scenario I did a kill -9 on one of the data node and later restarted it, but it failed to join the cluster(repeatedly) with this message FATAL: Can not register Datanode on GTM When I looked at the GTM code, the routine pgxcnode_add_info() is trying to add the datanode into the global table and finds a duplicate and rejects the registration, this is obvious since the datanode wasn't a clean shutdown. Is this considered a bug or an expected behavior? pgxcnode_add_infoRecovery_PGXCNodeRegister ProcessPGXCNodeRegisterProcessPGXCNodeCommand (argp=0x10c8ca8) at main.cpp:1421 In general for a cluster system we will have membership layer, heartbeat check is performed and datanode death might have been detected and a cleanup is done for global hash table. BTW I have worked around the problem by calling Unregister just before calling pgxcnode_add_info(). Can you please share your ideas and thoughts. ThanksTeja |
