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From "Damodar Reddy Talakanti" <>
Subject Review Request 15344: Enabling DB HA for cloud stack data bases using mysql active-active solution
Date Fri, 08 Nov 2013 08:48:13 GMT

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Review request for cloudstack, Abhinandan Prateek and Darren Shepherd.


Repository: cloudstack-git


To enable Data base High Availability for cloud stack management server database. We have
used Mysql's connector parameters to switch between master and slaves along with mysql's 2-way
replication and chain way of replication for more than 2 nodes

Due ot this defect changed 2 files to have synchronized
for on block of statements which were cauing Thread BLOCKING..


  client/tomcatconf/ b0cb22b 
  framework/db/src/com/cloud/utils/db/ acb9cc6 
  framework/db/src/com/cloud/utils/db/ 8544aab 
  framework/db/src/com/cloud/utils/db/ a874ce1 



Basic sanity testing is done using 2 nodes. If any transaction(api request) is in between
and if server goes down then that api request will fail


Damodar Reddy Talakanti

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