LogDog: Update to archival V2.

common/proto/logdog/svcconfig/config.pb.go

 // Code generated by protoc-gen-go.
 // source: config.proto
 // DO NOT EDIT!
 
 /*
 Package svcconfig is a generated protocol buffer package.
 
 It is generated from these files:
         config.proto
         storage.proto
@@ skipping 81 matching lines @@
 type Coordinator struct {
         // Project is the name of the AppEngine Project that the Coordinator belongs
         // to.
         Project string `protobuf:"bytes,1,opt,name=project" json:"project,omitempty"`
         // The name of the authentication group for administrators.
         AdminAuthGroup string `protobuf:"bytes,10,opt,name=admin_auth_group,json=adminAuthGroup" json:"admin_auth_group,omitempty"`
         // The name of the authentication group for backend services.
         ServiceAuthGroup string `protobuf:"bytes,11,opt,name=service_auth_group,json=serviceAuthGroup" json:"service_auth_group,omitempty"`
         // A list of origin URLs that are allowed to perform CORS RPC calls.
         RpcAllowOrigins []string `protobuf:"bytes,20,rep,name=rpc_allow_origins,json=rpcAllowOrigins" json:"rpc_allow_origins,omitempty"`
-        // The name of the archive task queue.
-        ArchiveTaskQueue string `protobuf:"bytes,30,opt,name=archive_task_queue,json=archiveTaskQueue" json:"archive_task_queue,omitempty"`
-        // The amount of time after a log has been terminated before it is candidate
-        // for archival.
+        // The full path of the archival Pub/Sub topic.
         //
-        // Archival triggered by this delay will NOT succeed if any log entries are
-        // missing from intermediate storage.
+        // The Coordinator must have permission to publish to this topic.
+        ArchiveTopic string `protobuf:"bytes,30,opt,name=archive_topic,json=archiveTopic" json:"archive_topic,omitempty"`
+        // The amount of time after an archive request has been dispatched before it
+        // should be executed.
         //
-        // This should be based on a period of time where it's reasonable to expect
-        // that all log messages in the transport have arrived for a given log stream.
-        // Since the transport doesn't have to guarantee in-order delivery, this
-        // should allow for the case where the terminal log entry arrives before some
-        // of the intermediate log entries. This will help avoid triggering
-        // archive attempts that are doomed to fail because of standard transport lag.
-        ArchiveDelay *google_protobuf.Duration `protobuf:"bytes,31,opt,name=archive_delay,json=archiveDelay" json:"archive_delay,omitempty"`
+        // Since terminal messages can arrive out of order, the archival request may
+        // be kicked off before all of the log stream data has been loaded into
+        // intermediate storage. If this happens, the Archivist will retry archival
+        // later autometically.
+        //
+        // This parameter is an optimization to stop the archivist from wasting its
+        // time until the log stream has a reasonable expectation of being available.
+        ArchiveSettleDelay *google_protobuf.Duration `protobuf:"bytes,31,opt,name=archive_settle_delay,json=archiveSettleDelay" json:"archive_settle_delay,omitempty"`
         // The amount of time before a log stream is candidate for archival regardless
         // of whether or not it's been terminated or complete.
         //
-        // This endpoint is a failsafe designed to ensure that log streams with
-        // missing records or no terminal record (e.g., Butler crashed) are eventually
-        // moved out of intermediate storage.
+        // This is a failsafe designed to ensure that log streams with missing records
+        // or no terminal record (e.g., Butler crashed) are eventually archived.
         //
-        // This must be >= `archive_delay`, and should be fairly large (days) to allow
-        // for the log stream to complete and for all available log entries to be
-        // added to intermediate storage.
+        // This should be fairly large (days) to avoid prematurely archiving
+        // long-running streams, but should be considerably smaller than the
+        // intermediate storage data retention period.
         ArchiveDelayMax *google_protobuf.Duration `protobuf:"bytes,32,opt,name=archive_delay_max,json=archiveDelayMax" json:"archive_delay_max,omitempty"`
 }
 
 func (m *Coordinator) Reset()                    { *m = Coordinator{} }
 func (m *Coordinator) String() string            { return proto.CompactTextString(m) }
 func (*Coordinator) ProtoMessage()               {}
 func (*Coordinator) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
 
-func (m *Coordinator) GetArchiveDelay() *google_protobuf.Duration {
+func (m *Coordinator) GetArchiveSettleDelay() *google_protobuf.Duration {
         if m != nil {
-                return m.ArchiveDelay
+                return m.ArchiveSettleDelay
         }
         return nil
 }
 
 func (m *Coordinator) GetArchiveDelayMax() *google_protobuf.Duration {
         if m != nil {
                 return m.ArchiveDelayMax
         }
         return nil
 }
@@ skipping 21 matching lines @@
 
 func (m *Collector) GetStateCacheExpiration() *google_protobuf.Duration {
         if m != nil {
                 return m.StateCacheExpiration
         }
         return nil
 }
 
 // Configuration for the Archivist microservice.
 type Archivist struct {
+        // The name of the archival Pub/Sub subscription.
+        //
+        // This should be connected to "archive_topic", and the Archivist must have
+        // permission to consume from this subscription.
+        Subscription string `protobuf:"bytes,1,opt,name=subscription" json:"subscription,omitempty"`
         // The number of tasks to run at a time. If blank, the archivist will choose a
         // default value.
-        Tasks int32 `protobuf:"varint,1,opt,name=tasks" json:"tasks,omitempty"`
+        Tasks int32 `protobuf:"varint,2,opt,name=tasks" json:"tasks,omitempty"`
         // The name of the Google Storage bucket and optional base path to archive
         // into. For example: gs://foo/bar
         //
         // The bucket name must be included (e.g., "gs://foo"). The remainder of the
         // base path is optional based on desired archive location.
-        GsBase string `protobuf:"bytes,10,opt,name=gs_base,json=gsBase" json:"gs_base,omitempty"`
+        GsBase string `protobuf:"bytes,3,opt,name=gs_base,json=gsBase" json:"gs_base,omitempty"`
+        // The name of the staging storage bucket. Uses same notation as "gs_base".
+        GsStagingBase string `protobuf:"bytes,4,opt,name=gs_staging_base,json=gsStagingBase" json:"gs_staging_base,omitempty"`
         // If not zero, the maximum number of stream indices between index entries.
-        StreamIndexRange int32 `protobuf:"varint,11,opt,name=stream_index_range,json=streamIndexRange" json:"stream_index_range,omitempty"`
+        StreamIndexRange int32 `protobuf:"varint,10,opt,name=stream_index_range,json=streamIndexRange" json:"stream_index_range,omitempty"`
         // If not zero, the maximum number of prefix indices between index entries.
-        PrefixIndexRange int32 `protobuf:"varint,12,opt,name=prefix_index_range,json=prefixIndexRange" json:"prefix_index_range,omitempty"`
+        PrefixIndexRange int32 `protobuf:"varint,11,opt,name=prefix_index_range,json=prefixIndexRange" json:"prefix_index_range,omitempty"`
         // If not zero, the maximum number of log data bytes between index entries.
-        ByteRange int32 `protobuf:"varint,13,opt,name=byte_range,json=byteRange" json:"byte_range,omitempty"`
+        ByteRange int32 `protobuf:"varint,12,opt,name=byte_range,json=byteRange" json:"byte_range,omitempty"`
 }
 
 func (m *Archivist) Reset()                    { *m = Archivist{} }
 func (m *Archivist) String() string            { return proto.CompactTextString(m) }
 func (*Archivist) ProtoMessage()               {}
 func (*Archivist) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} }
 
 func init() {
         proto.RegisterType((*Config)(nil), "svcconfig.Config")
         proto.RegisterType((*Coordinator)(nil), "svcconfig.Coordinator")
         proto.RegisterType((*Collector)(nil), "svcconfig.Collector")
         proto.RegisterType((*Archivist)(nil), "svcconfig.Archivist")
 }
 
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