Hello, Igniters. Recently huge commit was merged [1].
Taras, Alexander, can you, please, explain what is purpose of the commit? What feature it implemented? Looked inside the ticket and found no explanation. Description is "Add statistics collection and usage.ยป Do we have plans to document this new feature? Also, I see very strange license in added files [2] ``` * Copyright 2013 Aggregate Knowledge, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); ``` Is it OK to have those copyright inside ASF codebase? Is it some kind of external dependency we adopted as part of the code? Why do we need it? [1] https://github.com/apache/ignite/commit/503a98495433e1d0cf84f8be8c1e2adc57034fbb [2] https://github.com/apache/ignite/blob/master/modules/indexing/src/main/java/org/apache/ignite/internal/processors/query/stat/hll/serialization/IHLLMetadata.java
