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Feature/acksync response writer (#1267)

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This implements a "detached" mechanism to get an ack from the runner
once it actually starts to run a function. In this scenario the response
returned back is just a 202 if we placed the function in a specific
time-frame. If we hit some errors or we fail to place the fn in time we
return back different errors.
This commit is contained in:
Andrea Rosa
2018-11-09 18:25:43 +00:00
committed by Tolga Ceylan
parent 2df6c8d349
commit 182db94fad
17 changed files with 453 additions and 58 deletions
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5
api/agent/config.go
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@@ -18,6 +18,7 @@ type Config struct {
HotLauncherTimeout time.Duration `json:"hot_launcher_timeout_msecs"`
HotStartTimeout time.Duration `json:"hot_start_timeout_msecs"`
AsyncChewPoll time.Duration `json:"async_chew_poll_msecs"`
DetachedHeadRoom time.Duration `json:"detached_head_room_msecs"`
MaxResponseSize uint64 `json:"max_response_size_bytes"`
MaxLogSize uint64 `json:"max_log_size_bytes"`
MaxTotalCPU uint64 `json:"max_total_cpu_mcpus"`
@@ -94,6 +95,9 @@ const (
// EnvIOFSOpts are the options to set when mounting the iofs directory for unix socket files
EnvIOFSOpts = "FN_IOFS_OPTS"
// EnvDetachedHeadroom is the extra room we want to give to a detached function to run.
EnvDetachedHeadroom = "FN_EXECUTION_HEADROOM"
// MaxMsDisabled is used to determine whether mr freeze is lying in wait. TODO remove this manuever
MaxMsDisabled = time.Duration(math.MaxInt64)
@@ -128,6 +132,7 @@ func NewConfig() (*Config, error) {
err = setEnvMsecs(err, EnvHotLauncherTimeout, &cfg.HotLauncherTimeout, time.Duration(60)*time.Minute)
err = setEnvMsecs(err, EnvHotStartTimeout, &cfg.HotStartTimeout, time.Duration(10)*time.Minute)
err = setEnvMsecs(err, EnvAsyncChewPoll, &cfg.AsyncChewPoll, time.Duration(60)*time.Second)
err = setEnvMsecs(err, EnvDetachedHeadroom, &cfg.DetachedHeadRoom, time.Duration(360)*time.Second)
err = setEnvUint(err, EnvMaxResponseSize, &cfg.MaxResponseSize)
err = setEnvUint(err, EnvMaxLogSize, &cfg.MaxLogSize)
err = setEnvUint(err, EnvMaxTotalCPU, &cfg.MaxTotalCPU)