Log Service:Why does index traffic cost several times higher than read and write traffic?

Index traffic is calculated based on the volume of uncompressed data. Read and write traffic is calculated based on the volume of compressed data.

Index traffic is calculated based on the volume of the uncompressed data that is indexed or reindexed. Read and write traffic is calculated based on the volume of transmitted data after compression. The size of the index file and the complexity of the log content depend on the number of fields that are indexed. For example, the size of the source file is 10 GB, the size of the created index file is 8 GB, and the size of the compressed source file is 2 GB. In this case, the index traffic is 8 GB and the read and write traffic is 2 GB.

For more information, see Billable items.