# Validate the Data Index

You can check that your data indexes are correctly populated by validating the index. Validation checks the consistency of each of the subindexes in IDOL (node table, numeric, and so on) and logs information about any issues in the application log.

You can perform validation:

- at any time, using an index action or the IDOL Admin interface.

- on startup, by configuring validation parameters.

- automatically, following a server interruption.

NOTE: The validation checks can take some time to run, depending on the size of your index.

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