Distributed Queries #2202
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Distributed Queries #2202
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otoolep
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Refactored query engine to have different processing pipeline for raw queries. This enables queries that have a large offset to not keep everything in memory. It also makes it so that queries against raw data that have a limit will only p rocess up to that limit and then bail out. Raw data queries will only read up to a certain point in the map phase before yielding to the engine for further processing. Fixes #2029 and fixes #2030
Fixes issue #1649
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No doubt about it, URL routing is definitely brittle and needs work.
With a max remote reponse of 1GB, testing is unable to proceed.
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| } | ||
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| // request to start streaming results | ||
| resp, err := http.Post(m.dataNodes[0].URL.String()+"/run_mapper", "application/json", bytes.NewReader(b)) |
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Should this be m.dataNode[rand.Intn(len(m.dataNodes))]to avoid a single node handling all the traffic? Or is m.dataNodes already randomized beforehand?
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I was thinking exactly the same thing myself.
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Two comments but LGTM otherwise. |
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