Search thread safety
Multiple simultaneous searches
Search in an index is a thread safe operation. This means that calls to the search and searchNext methods can be made from different threads to the same instance of the Index class without any cross-threading problems.
Search during indexing, updating, optimizing, or merging operation
Simultaneous search from different threads is a thread safe operation and can be performed even during indexing, updating, optimizing, and merging operations.
However, indexing, updating, optimizing, and merging operations themselves cannot be performed at the same time. A new start of one of these operations before the completion of the previous operation will result in an error.
You may easily run the code from documentation articles and see the features in action in our GitHub examples:
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