Iindexing session describes all data collected during the pass of a document store’s indexer. Data for all documents is collected during the first indexing session; subsequent indexing sessions collect data for new documents, modified documents, and deleted documents. Thus, the amount of data collected during two different indexing sessions can vary dramatically (from everything to nothing).
All data collected by the indexing session is stored in the indexing session’s data buffer. The data buffer is a RAM-oriented data structure, where data is aggregated, ready to be written to an index stripe. This buffer is flushed when the maximum memory threshold has been exceeded (specified in the system property omniq.index.buffer.maxMemory). The buffer shares this memory allocation with the document store’s active index stripe. See “Active index stripes”.
The data is transferred from the data buffer to one of two types of index stripes—active or static. See “Index stripes” below.
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