Fix oversized response handling #33
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dfangl
approved these changes
Feb 13, 2024
joe4dev
reviewed
Feb 13, 2024
| @@ -50,6 +52,7 @@ func InitLsOpts() *LsOpts { | |||
| User: GetenvWithDefault("LOCALSTACK_USER", "sbx_user1051"), | |||
| InitLogLevel: GetenvWithDefault("LOCALSTACK_INIT_LOG_LEVEL", "warn"), | |||
| EdgePort: GetenvWithDefault("EDGE_PORT", "4566"), | |||
| MaxPayloadSize: GetenvWithDefault("LOCALSTACK_MAX_PAYLOAD_SIZE", "6291556"), | |||
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Intentionally no unit _BYTES vs. LAMBDA_LIMITS_MAX_FUNCTION_PAYLOAD_SIZE_BYTES in LocalStack
guess to match with interop.MaxPayloadSize
(LOCALSTACK_POST_INVOKE_WAIT_MS also has a unit)
| @@ -18,10 +19,10 @@ import ( | |||
| log "github.com/sirupsen/logrus" | |||
| ) | |||
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| var MaxPayloadSize int = 6*1024*1024 + 100 // 6 MiB + 100 bytes | |||
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annoying that we cannot use a single type due to mixed usages 😢 (server.go requires an int; not int64)
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When sending an oversized (>6MB) response payload, the runtime process exits with exit code 1. In our error handling code we used
log.Fatalwhen handling aErrInvokeDoneFailedexception which caused the init to prematurely exit and thus didn't send a proper response back to localstack.Additionaly when testing, I've noticed a small parity gap, so I patched the generated message to not include the actual bytes there. Though I guess its debatable if we want to keep that part of the PR or not. 🤷♂️