In JIRA 6.0.3 if I'm doing a test import to the test environment, the first two steps of the import process is sufficiently fast. The same first two steps in a production environment is extremely slow. I would be interested in what is happening in these steps. Refer to the database already during the first step to JIRA? The test and production environments virtual machines are clones, the database environment differs.
That's odd. Generally, MSSQL is the fastest to perform the import, and MySQL is the slowest. Just to confrim we are on the same page, the steps you are referring to are:
The first two steps, are not related to the database they are related to the XML backup. However, the latter 2 steps may be related to the database, as they check for the values from the database.
The process might be slow, due to not enough resources in your machine, as importing data requires a lot of resources. Perhaps, you would like to check the resources allocated for your JIRA instance during the importing process to check whether they are enough and the disk is not running our of resource in that process.
The test environment has a local mysql database. The production environment sits in a separate MSSQL database server. This can cause the problem? The production DB environments has known performance failures. Has the first phase of the import been using the JIRA database? Or is it just parse the xml?
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