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Merge pull request #1814 from gianm/rt-docs 

Adjust realtime constraints in the docs.
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Xavier Léauté 2015-10-09 10:59:31 -07:00
parent 283ddfcf71 933cbdf780
commit 968b640261
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docs/content/ingestion/realtime-ingestion.md
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@ -252,5 +252,5 @@ The following table summarizes constraints between settings in the spec file for
|intermediatePersistPeriod| The max time (ISO8601 Period) between flushes of ingested rows from memory to disk | avoid excessive flushing | number of un-persisted rows in memory also constrained by maxRowsInMemory | |intermediatePersistPeriod| The max time (ISO8601 Period) between flushes of ingested rows from memory to disk | avoid excessive flushing | number of un-persisted rows in memory also constrained by maxRowsInMemory |
|maxRowsInMemory| The max number of ingested rows to hold in memory before a flush to disk | number of un-persisted post-aggregation rows in memory is also constrained by intermediatePersistPeriod | use this to avoid running out of heap if too many rows in an intermediatePersistPeriod | |maxRowsInMemory| The max number of ingested rows to hold in memory before a flush to disk | number of un-persisted post-aggregation rows in memory is also constrained by intermediatePersistPeriod | use this to avoid running out of heap if too many rows in an intermediatePersistPeriod |
The normal, expected use cases have the following overall constraints: `queryGranularity < intermediatePersistPeriod =< windowPeriod < segmentGranularity` The normal, expected use cases have the following overall constraints: `intermediatePersistPeriod ≤ windowPeriod < segmentGranularity` and `queryGranularity ≤ segmentGranularity`