Serialize Monitoring Bulk Request Compressed (#56410) #56442
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Even with changes from elastic#48854 we're still seeing significant (as in tens and hundreds of MB) buffer usage for bulk exports in some cases which destabilizes master nodes. Since we need to know the serialized length of the bulk body we can't do the serialization in a streaming manner. (also it's not easily doable with the HTTP client API we're using anyway). => let's at least serialize on heap in compressed form and decompress as we're streaming to the HTTP connection. For small requests this adds negligible overhead but for large requests this reduces the size of the payload field by about an order of magnitude (empirically determined) which is a massive reduction in size when considering O(100MB) bulk requests.
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Pinging @elastic/es-core-features (:Core/Features/Monitoring) |
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Even with changes from #48854 we're still seeing significant (as in tens and hundreds of MB)
buffer usage for bulk exports in some cases which destabilizes master nodes.
Since we need to know the serialized length of the bulk body we can't do the serialization
in a streaming manner. (also it's not easily doable with the HTTP client API we're using anyway).
=> let's at least serialize on heap in compressed form and decompress as we're streaming to the
HTTP connection. For small requests this adds negligible overhead but for large requests this reduces the size of the payload field by about an order of magnitude (empirically determined) which is a massive reduction in size when considering O(100MB) bulk requests.
backport of #56410