160 lines
11 KiB
XML
160 lines
11 KiB
XML
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-->
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<!-- Title: lifecycle Pages: 1 -->
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<svg width="1215pt" height="546pt"
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<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 541.5)">
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<title>lifecycle</title>
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<text xml:space="preserve" text-anchor="middle" x="603.62" y="-518.3" font-family="Helvetica,sans-Serif" font-size="16.00" fill="#0066ff">Lambda execution environment lifecycle</text>
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<g id="clust1" class="cluster">
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<title>cluster_cold</title>
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<text xml:space="preserve" text-anchor="middle" x="263" y="-482.8" font-family="Helvetica,sans-Serif" font-size="16.00" fill="#ff3d00">Cold start (first invocation on a fresh execution environment)</text>
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</g>
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<g id="clust2" class="cluster">
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<title>cluster_invoke</title>
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<text xml:space="preserve" text-anchor="middle" x="937" y="-153.8" font-family="Helvetica,sans-Serif" font-size="16.00" fill="#8892a8">Invocation</text>
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<g id="clust3" class="cluster">
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<title>cluster_warm</title>
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<text xml:space="preserve" text-anchor="middle" x="793.5" y="-288.55" font-family="Helvetica,sans-Serif" font-size="16.00" fill="#00c853">Warm reuse (subsequent invocations on the same environment)</text>
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<!-- download -->
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<g id="node1" class="node">
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<title>download</title>
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<text xml:space="preserve" text-anchor="middle" x="437" y="-451.55" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#e8eaf0">1. Download code</text>
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<text xml:space="preserve" text-anchor="middle" x="437" y="-438.05" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#e8eaf0">zip / container layers</text>
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</g>
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<!-- bootstrap -->
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<g id="node2" class="node">
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<title>bootstrap</title>
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<text xml:space="preserve" text-anchor="middle" x="437" y="-372.3" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#e8eaf0">2. Start runtime</text>
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<text xml:space="preserve" text-anchor="middle" x="437" y="-358.8" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#e8eaf0">bootstrap (python3.x)</text>
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<!-- download->bootstrap -->
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<g id="edge1" class="edge">
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<title>download->bootstrap</title>
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</g>
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<!-- init -->
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<g id="node3" class="node">
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<title>init</title>
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<text xml:space="preserve" text-anchor="middle" x="437" y="-271.3" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#ffc107">3. Init phase</text>
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<text xml:space="preserve" text-anchor="middle" x="437" y="-257.8" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#ffc107">run module-level code</text>
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<text xml:space="preserve" text-anchor="middle" x="437" y="-244.3" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#ffc107">import boto3 / aioboto3</text>
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<text xml:space="preserve" text-anchor="middle" x="437" y="-230.8" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#ffc107">build clients</text>
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<text xml:space="preserve" text-anchor="middle" x="437" y="-217.3" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#ffc107">(billed; capped at 10 s)</text>
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</g>
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<!-- bootstrap->init -->
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<g id="edge2" class="edge">
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<title>bootstrap->init</title>
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</g>
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<!-- handler -->
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<g id="node4" class="node">
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<title>handler</title>
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<text xml:space="preserve" text-anchor="middle" x="937" y="-123.05" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#e8eaf0">handler(event, context)</text>
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<text xml:space="preserve" text-anchor="middle" x="937" y="-109.55" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#e8eaf0">your code runs</text>
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<text xml:space="preserve" text-anchor="middle" x="937" y="-96.05" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#e8eaf0">(billed)</text>
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</g>
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<!-- init->handler -->
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<g id="edge3" class="edge">
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<title>init->handler</title>
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<polygon fill="#0066ff" stroke="#0066ff" points="852.08,-128.79 861.47,-123.88 851.06,-121.86 852.08,-128.79"/>
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<text xml:space="preserve" text-anchor="middle" x="605.96" y="-183.7" font-family="Helvetica,sans-Serif" font-size="9.00" fill="#8892a8">event arrives</text>
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</g>
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<!-- respond -->
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<g id="node5" class="node">
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<title>respond</title>
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<text xml:space="preserve" text-anchor="middle" x="952" y="-30.3" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#e8eaf0">return / raise</text>
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</g>
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<!-- handler->respond -->
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<g id="edge4" class="edge">
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<title>handler->respond</title>
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</g>
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<!-- freeze -->
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<g id="node8" class="node">
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<title>freeze</title>
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<text xml:space="preserve" text-anchor="middle" x="1124" y="-379.05" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#e8eaf0">freeze</text>
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<text xml:space="preserve" text-anchor="middle" x="1124" y="-365.55" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#e8eaf0">process paused</text>
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<text xml:space="preserve" text-anchor="middle" x="1124" y="-352.05" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#e8eaf0">(after handler returns)</text>
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</g>
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<!-- respond->freeze -->
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<g id="edge5" class="edge">
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<title>respond->freeze</title>
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</g>
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<!-- thaw -->
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<g id="node6" class="node">
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<title>thaw</title>
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<text xml:space="preserve" text-anchor="middle" x="1000" y="-251.05" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#e8eaf0">thaw</text>
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<text xml:space="preserve" text-anchor="middle" x="1000" y="-237.55" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#e8eaf0">(microseconds)</text>
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</g>
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<!-- thaw->handler -->
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<g id="edge7" class="edge">
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<title>thaw->handler</title>
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<text xml:space="preserve" text-anchor="middle" x="994.4" y="-183.7" font-family="Helvetica,sans-Serif" font-size="9.00" fill="#8892a8">reuse env</text>
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</g>
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<!-- reuse -->
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<g id="node7" class="node">
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<title>reuse</title>
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<text xml:space="preserve" text-anchor="middle" x="873" y="-257.8" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#00c853">globals retained:</text>
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<text xml:space="preserve" text-anchor="middle" x="873" y="-244.3" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#00c853">clients, /tmp,</text>
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<text xml:space="preserve" text-anchor="middle" x="873" y="-230.8" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#00c853">in-memory caches</text>
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</g>
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<!-- reuse->handler -->
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<g id="edge8" class="edge">
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<title>reuse->handler</title>
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<polygon fill="#00c853" stroke="#00c853" points="923.81,-149.67 925,-139.14 917.5,-146.63 923.81,-149.67"/>
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<!-- freeze->thaw -->
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<g id="edge6" class="edge">
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<title>freeze->thaw</title>
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<path fill="none" stroke="#00c853" d="M1092.05,-344.65C1085.01,-339.08 1077.73,-333 1071.25,-327 1053.59,-310.64 1035.31,-290.56 1021.69,-274.86"/>
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<polygon fill="#00c853" stroke="#00c853" points="1024.4,-272.65 1015.23,-267.34 1019.09,-277.21 1024.4,-272.65"/>
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<text xml:space="preserve" text-anchor="middle" x="1095.62" y="-318.45" font-family="Helvetica,sans-Serif" font-size="9.00" fill="#8892a8">next event</text>
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<!-- shutdown -->
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<title>shutdown</title>
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<text xml:space="preserve" text-anchor="middle" x="1124" y="-264.55" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#ff3d00">shutdown</text>
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<text xml:space="preserve" text-anchor="middle" x="1124" y="-251.05" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#ff3d00">idle ~5–15 min →</text>
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<text xml:space="preserve" text-anchor="middle" x="1124" y="-237.55" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#ff3d00">env torn down</text>
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<text xml:space="preserve" text-anchor="middle" x="1124" y="-224.05" font-family="Helvetica,sans-Serif" font-size="11.00" fill="#ff3d00">/tmp gone</text>
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<!-- freeze->shutdown -->
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<g id="edge9" class="edge">
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<title>freeze->shutdown</title>
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<text xml:space="preserve" text-anchor="middle" x="1151.75" y="-318.45" font-family="Helvetica,sans-Serif" font-size="9.00" fill="#8892a8">idle too long</text>
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