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Unlike with other database maintenance operations, re-indexing database tables requires stopping the SolarWinds services that write to those tables.
If an Orion NTA installation is running slowly, first follow the procedures in this KB article to improve performance.
If you have already performed those taks (switching DNS to on demand, saving a subset of collected NetFlow data and aggregating data in memory for top talker resources, and turned of searchability by IP address) you can consider re-indexing the NetFlow tables in the Orion database.
Re-indexing NetFlow database tables requires downtime in capturing and processing collected NetFlow data. Time to re-index your tables depends on their size. As a rule, re-indexing takes 30 minutes per 10GB of table data.
To determine the current size of a database table:
To re-index NetFlow database tables:
Beware that the NetFlowService will be shutdown for the duration of the reindexing operation and that you should not cancel the operation once that it is underway. Follow these steps to proceed:
NetFlowDatabaseMaintenance.exein the Orion NTA program directory by default: