diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index 30218e098..7993419e8 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -7,5 +7,4 @@
 # global owners are only requested if there isn't a more specific
 # codeowner specified below. For this reason, the global codeowners
 # are often repeated in package-level definitions.
-*       @alexanderbez @ebuchman @cmwaters @tessr @tychoish @williambanfield
-
+*       @alexanderbez @ebuchman @cmwaters @tessr @tychoish @williambanfield @creachadair
diff --git a/UPGRADING.md b/UPGRADING.md
index ef0a29fb4..e53c34c29 100644
--- a/UPGRADING.md
+++ b/UPGRADING.md
@@ -24,10 +24,10 @@ This guide provides instructions for upgrading to specific versions of Tendermin
 
 * Added `--mode` flag and `mode` config variable on `config.toml` for setting Mode of the Node: `full` | `validator` | `seed` (default: `full`)
   [ADR-52](https://github.com/tendermint/tendermint/blob/master/docs/architecture/adr-052-tendermint-mode.md)
-  
+
 * `BootstrapPeers` has been added as part of the new p2p stack. This will eventually replace
   `Seeds`. Bootstrap peers are connected with on startup if needed for peer discovery. Unlike
-  persistent peers, there's no guarantee that the node will remain connected with these peers. 
+  persistent peers, there's no gaurantee that the node will remain connected with these peers.
 
 * configuration values starting with `priv-validator-` have moved to the new
   `priv-validator` section, without the `priv-validator-` prefix.
@@ -35,6 +35,27 @@ This guide provides instructions for upgrading to specific versions of Tendermin
 * The fast sync process as well as the blockchain package and service has all
   been renamed to block sync
 
+### Key Format Changes
+
+The format of all tendermint on-disk database keys changes in
+0.35. Upgrading nodes must either re-sync all data or run a migration
+script provided in this release. The script located in
+`github.com/tendermint/tendermint/scripts/keymigrate/migrate.go`
+provides the function `Migrate(context.Context, db.DB)` which you can
+operationalize as makes sense for your deployment.
+
+For ease of use the `tendermint` command includes a CLI version of the
+migration script, which you can invoke, as in:
+
+	tendermint key-migrate
+
+This reads the configuration file as normal and allows the
+`--db-backend` and `--db-dir` flags to change database operations as
+needed.
+
+The migration operation is idempotent and can be run more than once,
+if needed.
+
 ### CLI Changes
 
 * You must now specify the node mode (validator|full|seed) in `tendermint init [mode]`
@@ -66,7 +87,7 @@ are:
 - `blockchain`
 - `evidence`
 
-Accordingly, the space `node` package was changed to reduce access to
+Accordingly, the `node` package was changed to reduce access to
 tendermint internals: applications that use tendermint as a library
 will need to change to accommodate these changes. Most notably:
 
@@ -81,6 +102,16 @@ will need to change to accommodate these changes. Most notably:
 
 Mark gRPC in the RPC layer as deprecated and to be removed in 0.36.
 
+### Support for Custom Reactor and Mempool Implementations
+
+The changes to p2p layer removed existing support for custom
+reactors. Based on our understanding of how this functionality was
+used, the introduction of the prioritized mempool covers nearly all of
+the use cases for custom reactors. If you are currently running custom
+reactors and mempools and are having trouble seeing the migration path
+for your project please feel free to reach out to the Tendermint Core
+development team directly. 
+
 ## v0.34.0
 
 **Upgrading to Tendermint 0.34 requires a blockchain restart.**
@@ -234,8 +265,8 @@ Other user-relevant changes include:
 
 * The old `lite` package was removed; the new light client uses the `light` package.
 * The `Verifier` was broken up into two pieces:
-    * Core verification logic (pure `VerifyX` functions)
-    * `Client` object, which represents the complete light client
+	* Core verification logic (pure `VerifyX` functions)
+	* `Client` object, which represents the complete light client
 * The new light clients stores headers & validator sets as `LightBlock`s
 * The RPC client can be found in the `/rpc` directory.
 * The HTTP(S) proxy is located in the `/proxy` directory.
@@ -367,12 +398,12 @@ Evidence Params has been changed to include duration.
 ### Go API
 
 * `libs/common` has been removed in favor of specific pkgs.
-    * `async`
-    * `service`
-    * `rand`
-    * `net`
-    * `strings`
-    * `cmap`
+	* `async`
+	* `service`
+	* `rand`
+	* `net`
+	* `strings`
+	* `cmap`
 * removal of `errors` pkg
 
 ### RPC Changes
@@ -441,9 +472,9 @@ Prior to the update, suppose your `ResponseDeliverTx` look like:
 ```go
 abci.ResponseDeliverTx{
   Tags: []kv.Pair{
-    {Key: []byte("sender"), Value: []byte("foo")},
-    {Key: []byte("recipient"), Value: []byte("bar")},
-    {Key: []byte("amount"), Value: []byte("35")},
+	{Key: []byte("sender"), Value: []byte("foo")},
+	{Key: []byte("recipient"), Value: []byte("bar")},
+	{Key: []byte("amount"), Value: []byte("35")},
   }
 }
 ```
@@ -462,14 +493,14 @@ the following `Events`:
 ```go
 abci.ResponseDeliverTx{
   Events: []abci.Event{
-    {
-      Type: "transfer",
-      Attributes: kv.Pairs{
-        {Key: []byte("sender"), Value: []byte("foo")},
-        {Key: []byte("recipient"), Value: []byte("bar")},
-        {Key: []byte("amount"), Value: []byte("35")},
-      },
-    }
+	{
+	  Type: "transfer",
+	  Attributes: kv.Pairs{
+		{Key: []byte("sender"), Value: []byte("foo")},
+		{Key: []byte("recipient"), Value: []byte("bar")},
+		{Key: []byte("amount"), Value: []byte("35")},
+	  },
+	}
 }
 ```
 
@@ -517,9 +548,9 @@ In this case, the WS client will receive an error with description:
   "jsonrpc": "2.0",
   "id": "{ID}#event",
   "error": {
-    "code": -32000,
-    "msg": "Server error",
-    "data": "subscription was canceled (reason: client is not pulling messages fast enough)" // or "subscription was canceled (reason: Tendermint exited)"
+	"code": -32000,
+	"msg": "Server error",
+	"data": "subscription was canceled (reason: client is not pulling messages fast enough)" // or "subscription was canceled (reason: Tendermint exited)"
   }
 }
 
@@ -725,9 +756,9 @@ just the `Data` field set:
 
 ```go
 []ProofOp{
-    ProofOp{
-        Data: <proof bytes>,
-    }
+	ProofOp{
+		Data: <proof bytes>,
+	}
 }
 ```
 
diff --git a/cmd/tendermint/commands/key_migrate.go b/cmd/tendermint/commands/key_migrate.go
new file mode 100644
index 000000000..739af4a7d
--- /dev/null
+++ b/cmd/tendermint/commands/key_migrate.go
@@ -0,0 +1,64 @@
+package commands
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/spf13/cobra"
+	cfg "github.com/tendermint/tendermint/config"
+	"github.com/tendermint/tendermint/scripts/keymigrate"
+)
+
+func MakeKeyMigrateCommand() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "key-migrate",
+		Short: "Run Database key migration",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			ctx, cancel := context.WithCancel(cmd.Context())
+			defer cancel()
+
+			contexts := []string{
+				// this is ordered to put the
+				// (presumably) biggest/most important
+				// subsets first.
+				"blockstore",
+				"state",
+				"peerstore",
+				"tx_index",
+				"evidence",
+				"light",
+			}
+
+			for idx, dbctx := range contexts {
+				logger.Info("beginning a key migration",
+					"dbctx", dbctx,
+					"num", idx+1,
+					"total", len(contexts),
+				)
+
+				db, err := cfg.DefaultDBProvider(&cfg.DBContext{
+					ID:     dbctx,
+					Config: config,
+				})
+
+				if err != nil {
+					return fmt.Errorf("constructing database handle: %w", err)
+				}
+
+				if err = keymigrate.Migrate(ctx, db); err != nil {
+					return fmt.Errorf("running migration for context %q: %w",
+						dbctx, err)
+				}
+			}
+
+			logger.Info("completed database migration successfully")
+
+			return nil
+		},
+	}
+
+	// allow database info to be overridden via cli
+	addDBFlags(cmd)
+
+	return cmd
+}
diff --git a/cmd/tendermint/commands/run_node.go b/cmd/tendermint/commands/run_node.go
index 1c68fcffe..97d6197a2 100644
--- a/cmd/tendermint/commands/run_node.go
+++ b/cmd/tendermint/commands/run_node.go
@@ -83,7 +83,10 @@ func AddNodeFlags(cmd *cobra.Command) {
 		config.Consensus.CreateEmptyBlocksInterval.String(),
 		"the possible interval between empty blocks")
 
-	// db flags
+	addDBFlags(cmd)
+}
+
+func addDBFlags(cmd *cobra.Command) {
 	cmd.Flags().String(
 		"db-backend",
 		config.DBBackend,
diff --git a/cmd/tendermint/main.go b/cmd/tendermint/main.go
index 810e35327..c006c297d 100644
--- a/cmd/tendermint/main.go
+++ b/cmd/tendermint/main.go
@@ -29,6 +29,7 @@ func main() {
 		cmd.GenNodeKeyCmd,
 		cmd.VersionCmd,
 		cmd.InspectCmd,
+		cmd.MakeKeyMigrateCommand(),
 		debug.DebugCmd,
 		cli.NewCompletionCmd(rootCmd, true),
 	)
diff --git a/docs/architecture/README.md b/docs/architecture/README.md
index a4e326274..7025a72f6 100644
--- a/docs/architecture/README.md
+++ b/docs/architecture/README.md
@@ -97,3 +97,4 @@ Note the context/background should be written in the present tense.
 - [ADR-041: Proposer-Selection-via-ABCI](./adr-041-proposer-selection-via-abci.md)
 - [ADR-045: ABCI-Evidence](./adr-045-abci-evidence.md)
 - [ADR-057: RPC](./adr-057-RPC.md)
+- [ADR-069: Node Initialization](./adr-069-flexible-node-initialization.md)
diff --git a/docs/architecture/adr-069-flexible-node-intitalization.md b/docs/architecture/adr-069-flexible-node-intitalization.md
new file mode 100644
index 000000000..ec66725be
--- /dev/null
+++ b/docs/architecture/adr-069-flexible-node-intitalization.md
@@ -0,0 +1,273 @@
+# ADR 069: Flexible Node Initialization
+
+## Changlog
+
+- 2021-06-09: Initial Draft (@tychoish)
+
+- 2021-07-21: Major Revision (@tychoish)
+
+## Status
+
+Proposed.
+
+## Context
+
+In an effort to support [Go-API-Stability](./adr-060-go-api-stability.md),
+during the 0.35 development cycle, we have attempted to reduce the the API
+surface area by moving most of the interface of the `node` package into
+unexported functions, as well as moving the reactors to an `internal`
+package. Having this coincide with the 0.35 release made a lot of sense
+because these interfaces were _already_ changing as a result of the `p2p`
+[refactor](./adr-061-p2p-refactor-scope.md), so it made sense to think a bit
+more about how tendermint exposes this API.
+
+While the interfaces of the P2P layer and most of the node package are already
+internalized, this precludes some operational patterns that are important to
+users who use tendermint as a library. Specifically, introspecting the
+tendermint node service and replacing components is not supported in the latest
+version of the code, and some of these use cases would require maintaining a
+vendor copy of the code. Adding these features requires rather extensive
+(internal/implementation) changes to the `node` and `rpc` packages, and this
+ADR describes a model for changing the way that tendermint nodes initialize, in
+service of providing this kind of functionality.
+
+We consider node initialization, because the current implemention
+provides strong connections between all components, as well as between
+the components of the node and the RPC layer, and being able to think
+about the interactions of these components will help enable these
+features and help define the requirements of the node package.
+
+## Alternative Approaches
+
+These alternatives are presented to frame the design space and to
+contextualize the decision in terms of product requirements. These
+ideas are not inherently bad, and may even be possible or desireable
+in the (distant) future, and merely provide additional context for how
+we, in the moment came to our decision(s).
+
+### Do Nothing
+
+The current implementation is functional and sufficient for the vast
+majority of use cases (e.g., all users of the Cosmos-SDK as well as
+anyone who runs tendermint and the ABCI application in separate
+processes). In the current implementation, and even previous versions,
+modifying node initialization or injecting custom components required
+copying most of the `node` package, which required such users
+to maintain a vendored copy of tendermint.
+
+While this is (likely) not tenable in the long term, as users do want
+more modularity, and the current service implementation is brittle and
+difficult to maintain, in the short term it may be possible to delay
+implementation somewhat. Eventually, however, we will need to make the
+`node` package easier to maintain and reason about.
+
+### Generic Service Pluggability
+
+One possible system design would export interfaces (in the Golang
+sense) for all components of the system, to permit runtime dependency
+injection of all components in the system, so that users can compose
+tendermint nodes of arbitrary user-supplied components.
+
+Although this level of customization would provide benefits, it would be a huge
+undertaking (particularly with regards to API design work) that we do not have
+scope for at the moment.  Eventually providing support for some kinds of
+pluggability may be useful, so the current solution does not explicitly
+foreclose the possibility of this alternative.
+
+### Abstract Dependency Based Startup and Shutdown
+
+The main proposal in this document makes tendermint node initialization simpler
+and more abstract, but the system lacks a number of
+features which daemon/service initialization could provide, such as a
+system allowing the authors of services to control initialization and shutdown order
+of components using dependency relationships.
+
+Such a system could work by allowing services to declare
+initialization order dependencies to other reactors (by ID, perhaps)
+so that the node could decide the initialization based on the
+dependencies declared by services rather than requiring the node to
+encode this logic directly.
+
+This level of configuration is probably more complicated than is needed.  Given
+that the authors of components in the current implementation of tendermint
+already *do* need to know about other components, a dependency-based system
+would probably be overly-abstract at this stage.
+
+## Decisions
+
+- To the greatest extent possible, factor the code base so that
+  packages are responsible for their own initialization, and minimize
+  the amount of code in the `node` package itself.
+
+- As a design goal, reduce direct coupling and dependencies between
+  components in the implementation of `node`.
+
+- Begin iterating on a more-flexible internal framework for
+  initializing tendermint nodes to make the initatilization process
+  less hard-coded by the implementation of the node objects.
+
+  - Reactors should not need to expose their interfaces *within* the
+	implementation of the node type
+
+  - This refactoring should be entirely opaque to users.
+
+  - These node initialization changes should not require a
+	reevaluation of the `service.Service` or a generic initialization
+	orchestration framework.
+
+- Do not proactively provide a system for injecting
+  components/services within a tendtermint node, though make it
+  possible to retrofit this kind of plugability in the future if
+  needed.
+
+- Prioritize implementation of p2p-based statesync reactor to obviate
+  need for users to inject a custom state-sync provider.
+
+## Detailed Design
+
+The [current
+nodeImpl](https://github.com/tendermint/tendermint/blob/master/node/node.go#L47)
+includes direct references to the implementations of each of the
+reactors, which should be replaced by references to `service.Service`
+objects. This will require moving construction of the [rpc
+service](https://github.com/tendermint/tendermint/blob/master/node/node.go#L771)
+into the constructor of
+[makeNode](https://github.com/tendermint/tendermint/blob/master/node/node.go#L126). One
+possible implementation of this would be to eliminate the current
+`ConfigureRPC` method on the node package and instead [configure it
+here](https://github.com/tendermint/tendermint/pull/6798/files#diff-375d57e386f20eaa5f09f02bb9d28bfc48ac3dca18d0325f59492208219e5618R441).
+
+To avoid adding complexity to the `node` package, we will add a
+composite service implementation to the `service` package
+that implements `service.Service` and is composed of a sequence of
+underlying `service.Service` objects and handles their
+startup/shutdown in the specified sequential order.
+
+Consensus, blocksync (*née* fast sync), and statesync all depend on
+each other, and have significant initialization dependencies that are
+presently encoded in the `node` package. As part of this change, a
+new package/component (likely named `blocks` located at
+`internal/blocks`) will encapsulate the initialization of these block
+management areas of the code.
+
+### Injectable Component Option
+
+This section briefly describes a possible implementation for
+user-supplied services running within a node. This should not be
+implemented unless user-supplied components are a hard requirement for
+a user.
+
+In order to allow components to be replaced, a new public function
+will be added to the public interface of `node` with a signature that
+resembles the following:
+
+```go
+func NewWithServices(conf *config.Config,
+	logger log.Logger,
+	cf proxy.ClientCreator,
+	gen *types.GenesisDoc,
+	srvs []service.Service,
+) (service.Service, error) {
+```
+
+The `service.Service` objects will be initialized in the order supplied, after
+all pre-configured/default services have started (and shut down in reverse
+order).  The given services may implement additional interfaces, allowing them
+to replace specific default services. `NewWithServices` will validate input
+service lists with the following rules:
+
+- None of the services may already be running.
+- The caller may not supply more than one replacement reactor for a given
+  default service type.
+
+If callers violate any of these rules, `NewWithServices` will return
+an error. To retract support for this kind of operation in the future,
+the function can be modified to *always* return an error.
+
+## Consequences
+
+### Positive
+
+- The node package will become easier to maintain.
+
+- It will become easier to add additional services within tendermint
+  nodes.
+
+- It will become possible to replace default components in the node
+  package without vendoring the tendermint repo and modifying internal
+  code.
+
+- The current end-to-end (e2e) test suite will be able to prevent any
+  regressions, and the new functionality can be thoroughly unit tested.
+
+- The scope of this project is very narrow, which minimizes risk.
+
+### Negative
+
+- This increases our reliance on the `service.Service` interface which
+  is probably not an interface that we want to fully commit to.
+
+- This proposal implements a fairly minimal set of functionality and
+  leaves open the possibility for many additional features which are
+  not included in the scope of this proposal.
+
+### Neutral
+
+N/A
+
+## Open Questions
+
+- To what extent does this new initialization framework need to accommodate
+  the legacy p2p stack? Would it be possible to delay a great deal of this
+  work to the 0.36 cycle to avoid this complexity?
+
+  - Answer: _depends on timing_, and the requirement to ship pluggable reactors in 0.35.
+
+- Where should additional public types be exported for the 0.35
+  release?
+
+  Related to the general project of API stabilization we want to deprecate
+  the `types` package, and move its contents into a new `pkg` hierarchy;
+  however, the design of the `pkg` interface is currently underspecified.
+  If `types` is going to remain for the 0.35 release, then we should consider
+  the impact of using multiple organizing modalities for this code within a
+  single release.
+
+## Future Work
+
+- Improve or simplify the `service.Service` interface. There are some
+  pretty clear limitations with this interface as written (there's no
+  way to timeout slow startup or shut down, the cycle between the
+  `service.BaseService` and `service.Service` implementations is
+  troubling, the default panic in `OnReset` seems troubling.)
+
+- As part of the refactor of `service.Service` have all services/nodes
+  respect the lifetime of a `context.Context` object, and avoid the
+  current practice of creating `context.Context` objects in p2p and
+  reactor code. This would be required for in-process multi-tenancy.
+
+- Support explicit dependencies between components and allow for
+  parallel startup, so that different reactors can startup at the same
+  time, where possible.
+
+## References
+
+- [this
+  branch](https://github.com/tendermint/tendermint/tree/tychoish/scratch-node-minimize)
+  contains experimental work in the implementation of the node package
+  to unwind some of the hard dependencies between components.
+
+- [the component
+  graph](https://peter.bourgon.org/go-for-industrial-programming/#the-component-graph)
+  as a framing for internal service construction.
+
+## Appendix
+
+### Dependencies
+
+There's a relationship between the blockchain and consensus reactor
+described by the following dependency graph makes replacing some of
+these components more difficult relative to other reactors or
+components.
+
+![consensus blockchain dependency graph](./img/consensus_blockchain.png)
diff --git a/docs/architecture/img/consensus_blockchain.png b/docs/architecture/img/consensus_blockchain.png
new file mode 100644
index 000000000..dd0f4daa8
Binary files /dev/null and b/docs/architecture/img/consensus_blockchain.png differ
diff --git a/go.mod b/go.mod
index a23bc5167..84c6f43ac 100644
--- a/go.mod
+++ b/go.mod
@@ -37,7 +37,7 @@ require (
 	github.com/vektra/mockery/v2 v2.9.0
 	golang.org/x/crypto v0.0.0-20210314154223-e6e6c4f2bb5b
 	golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4
-	google.golang.org/grpc v1.39.1
+	google.golang.org/grpc v1.40.0
 	gopkg.in/check.v1 v1.0.0-20200902074654-038fdea0a05b // indirect
 	pgregory.net/rapid v0.4.7
 )
diff --git a/go.sum b/go.sum
index 3e20b60ab..81abd8a00 100644
--- a/go.sum
+++ b/go.sum
@@ -1368,8 +1368,8 @@ google.golang.org/grpc v1.35.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAG
 google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
 google.golang.org/grpc v1.36.1/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
 google.golang.org/grpc v1.38.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
-google.golang.org/grpc v1.39.1 h1:f37vZbBVTiJ6jKG5mWz8ySOBxNqy6ViPgyhSdVnxF3E=
-google.golang.org/grpc v1.39.1/go.mod h1:PImNr+rS9TWYb2O4/emRugxiyHZ5JyHW5F+RPnDzfrE=
+google.golang.org/grpc v1.40.0 h1:AGJ0Ih4mHjSeibYkFGh1dD9KJ/eOtZ93I6hoHhukQ5Q=
+google.golang.org/grpc v1.40.0/go.mod h1:ogyxbiOoUXAkP+4+xa6PZSE9DZgIHtSpzjDTB9KAK34=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
diff --git a/libs/bytes/bytes.go b/libs/bytes/bytes.go
index cfb7a8db2..dd8e39737 100644
--- a/libs/bytes/bytes.go
+++ b/libs/bytes/bytes.go
@@ -27,15 +27,22 @@ func (bz *HexBytes) Unmarshal(data []byte) error {
 	return nil
 }
 
-// MarshalJSON implements the json.Marshaler interface. The hex bytes is a
-// quoted hexadecimal encoded string.
+// MarshalJSON implements the json.Marshaler interface. The encoding is a JSON
+// quoted string of hexadecimal digits.
 func (bz HexBytes) MarshalJSON() ([]byte, error) {
-	s := strings.ToUpper(hex.EncodeToString(bz))
-	jbz := make([]byte, len(s)+2)
-	jbz[0] = '"'
-	copy(jbz[1:], s)
-	jbz[len(jbz)-1] = '"'
-	return jbz, nil
+	size := hex.EncodedLen(len(bz)) + 2 // +2 for quotation marks
+	buf := make([]byte, size)
+	hex.Encode(buf[1:], []byte(bz))
+	buf[0] = '"'
+	buf[size-1] = '"'
+
+	// Ensure letter digits are capitalized.
+	for i := 1; i < size-1; i++ {
+		if buf[i] >= 'a' && buf[i] <= 'f' {
+			buf[i] = 'A' + (buf[i] - 'a')
+		}
+	}
+	return buf, nil
 }
 
 // UnmarshalJSON implements the json.Umarshaler interface.
diff --git a/libs/bytes/bytes_test.go b/libs/bytes/bytes_test.go
index db882f1c1..6a9ca7c3d 100644
--- a/libs/bytes/bytes_test.go
+++ b/libs/bytes/bytes_test.go
@@ -37,6 +37,7 @@ func TestJSONMarshal(t *testing.T) {
 		{[]byte(``), `{"B1":"","B2":""}`},
 		{[]byte(`a`), `{"B1":"YQ==","B2":"61"}`},
 		{[]byte(`abc`), `{"B1":"YWJj","B2":"616263"}`},
+		{[]byte("\x1a\x2b\x3c"), `{"B1":"Gis8","B2":"1A2B3C"}`},
 	}
 
 	for i, tc := range cases {
diff --git a/libs/pubsub/pubsub.go b/libs/pubsub/pubsub.go
index 54a030fe8..7548470b5 100644
--- a/libs/pubsub/pubsub.go
+++ b/libs/pubsub/pubsub.go
@@ -231,34 +231,45 @@ func (s *Server) Unsubscribe(ctx context.Context, args UnsubscribeArgs) error {
 		return err
 	}
 	var qs string
+
 	if args.Query != nil {
 		qs = args.Query.String()
 	}
 
-	s.mtx.RLock()
-	clientSubscriptions, ok := s.subscriptions[args.Subscriber]
-	if args.ID != "" {
-		qs, ok = clientSubscriptions[args.ID]
+	clientSubscriptions, err := func() (map[string]string, error) {
+		s.mtx.RLock()
+		defer s.mtx.RUnlock()
 
-		if ok && args.Query == nil {
-			var err error
-			args.Query, err = query.New(qs)
-			if err != nil {
-				return err
+		clientSubscriptions, ok := s.subscriptions[args.Subscriber]
+		if args.ID != "" {
+			qs, ok = clientSubscriptions[args.ID]
+
+			if ok && args.Query == nil {
+				var err error
+				args.Query, err = query.New(qs)
+				if err != nil {
+					return nil, err
+				}
 			}
+		} else if qs != "" {
+			args.ID, ok = clientSubscriptions[qs]
 		}
-	} else if qs != "" {
-		args.ID, ok = clientSubscriptions[qs]
-	}
 
-	s.mtx.RUnlock()
-	if !ok {
-		return ErrSubscriptionNotFound
+		if !ok {
+			return nil, ErrSubscriptionNotFound
+		}
+
+		return clientSubscriptions, nil
+	}()
+
+	if err != nil {
+		return err
 	}
 
 	select {
 	case s.cmds <- cmd{op: unsub, clientID: args.Subscriber, query: args.Query, subscription: &Subscription{id: args.ID}}:
 		s.mtx.Lock()
+		defer s.mtx.Unlock()
 
 		delete(clientSubscriptions, args.ID)
 		delete(clientSubscriptions, qs)
@@ -266,7 +277,6 @@ func (s *Server) Unsubscribe(ctx context.Context, args UnsubscribeArgs) error {
 		if len(clientSubscriptions) == 0 {
 			delete(s.subscriptions, args.Subscriber)
 		}
-		s.mtx.Unlock()
 		return nil
 	case <-ctx.Done():
 		return ctx.Err()
@@ -288,8 +298,10 @@ func (s *Server) UnsubscribeAll(ctx context.Context, clientID string) error {
 	select {
 	case s.cmds <- cmd{op: unsub, clientID: clientID}:
 		s.mtx.Lock()
+		defer s.mtx.Unlock()
+
 		delete(s.subscriptions, clientID)
-		s.mtx.Unlock()
+
 		return nil
 	case <-ctx.Done():
 		return ctx.Err()
diff --git a/node/node.go b/node/node.go
index 2dca7b82c..b6ea1e974 100644
--- a/node/node.go
+++ b/node/node.go
@@ -18,7 +18,6 @@ import (
 	cfg "github.com/tendermint/tendermint/config"
 	"github.com/tendermint/tendermint/crypto"
 	cs "github.com/tendermint/tendermint/internal/consensus"
-	"github.com/tendermint/tendermint/internal/evidence"
 	"github.com/tendermint/tendermint/internal/mempool"
 	"github.com/tendermint/tendermint/internal/p2p"
 	"github.com/tendermint/tendermint/internal/p2p/pex"
@@ -37,7 +36,6 @@ import (
 	grpccore "github.com/tendermint/tendermint/rpc/grpc"
 	rpcserver "github.com/tendermint/tendermint/rpc/jsonrpc/server"
 	sm "github.com/tendermint/tendermint/state"
-	"github.com/tendermint/tendermint/state/indexer"
 	"github.com/tendermint/tendermint/store"
 	"github.com/tendermint/tendermint/types"
 )
@@ -71,16 +69,12 @@ type nodeImpl struct {
 	mempool          mempool.Mempool
 	stateSync        bool               // whether the node should state sync on startup
 	stateSyncReactor *statesync.Reactor // for hosting and restoring state sync snapshots
-	consensusState   *cs.State          // latest consensus state
 	consensusReactor *cs.Reactor        // for participating in the consensus
-	pexReactor       *pex.Reactor       // for exchanging peer addresses
-	pexReactorV2     *pex.ReactorV2     // for exchanging peer addresses
-	evidenceReactor  *evidence.Reactor
-	evidencePool     *evidence.Pool // tracking evidence
-	proxyApp         proxy.AppConns // connection to the application
+	pexReactor       service.Service    // for exchanging peer addresses
+	evidenceReactor  service.Service
 	rpcListeners     []net.Listener // rpc servers
-	eventSinks       []indexer.EventSink
-	indexerService   *indexer.Service
+	indexerService   service.Service
+	rpcEnv           *rpccore.Environment
 	prometheusSrv    *http.Server
 }
 
@@ -371,46 +365,43 @@ func makeNode(config *cfg.Config,
 	// Note we currently use the addrBook regardless at least for AddOurAddress
 
 	var (
-		pexReactor   *pex.Reactor
-		pexReactorV2 *pex.ReactorV2
-		sw           *p2p.Switch
-		addrBook     pex.AddrBook
+		pexReactor service.Service
+		sw         *p2p.Switch
+		addrBook   pex.AddrBook
 	)
 
 	pexCh := pex.ChannelDescriptor()
 	transport.AddChannelDescriptors([]*p2p.ChannelDescriptor{&pexCh})
 
-	if config.P2P.PexReactor {
-		if config.P2P.DisableLegacy {
-			addrBook = nil
-			pexReactorV2, err = createPEXReactorV2(config, logger, peerManager, router)
-			if err != nil {
-				return nil, err
-			}
-		} else {
-			// setup Transport and Switch
-			sw = createSwitch(
-				config, transport, p2pMetrics, mpReactorShim, bcReactorForSwitch,
-				stateSyncReactorShim, csReactorShim, evReactorShim, proxyApp, nodeInfo, nodeKey, p2pLogger,
-			)
-
-			err = sw.AddPersistentPeers(strings.SplitAndTrimEmpty(config.P2P.PersistentPeers, ",", " "))
-			if err != nil {
-				return nil, fmt.Errorf("could not add peers from persistent-peers field: %w", err)
-			}
-
-			err = sw.AddUnconditionalPeerIDs(strings.SplitAndTrimEmpty(config.P2P.UnconditionalPeerIDs, ",", " "))
-			if err != nil {
-				return nil, fmt.Errorf("could not add peer ids from unconditional_peer_ids field: %w", err)
-			}
-
-			addrBook, err = createAddrBookAndSetOnSwitch(config, sw, p2pLogger, nodeKey)
-			if err != nil {
-				return nil, fmt.Errorf("could not create addrbook: %w", err)
-			}
-
-			pexReactor = createPEXReactorAndAddToSwitch(addrBook, config, sw, logger)
+	if config.P2P.DisableLegacy {
+		addrBook = nil
+		pexReactor, err = createPEXReactorV2(config, logger, peerManager, router)
+		if err != nil {
+			return nil, err
 		}
+	} else {
+		// setup Transport and Switch
+		sw = createSwitch(
+			config, transport, p2pMetrics, mpReactorShim, bcReactorForSwitch,
+			stateSyncReactorShim, csReactorShim, evReactorShim, proxyApp, nodeInfo, nodeKey, p2pLogger,
+		)
+
+		err = sw.AddPersistentPeers(strings.SplitAndTrimEmpty(config.P2P.PersistentPeers, ",", " "))
+		if err != nil {
+			return nil, fmt.Errorf("could not add peers from persistent-peers field: %w", err)
+		}
+
+		err = sw.AddUnconditionalPeerIDs(strings.SplitAndTrimEmpty(config.P2P.UnconditionalPeerIDs, ",", " "))
+		if err != nil {
+			return nil, fmt.Errorf("could not add peer ids from unconditional_peer_ids field: %w", err)
+		}
+
+		addrBook, err = createAddrBookAndSetOnSwitch(config, sw, p2pLogger, nodeKey)
+		if err != nil {
+			return nil, fmt.Errorf("could not create addrbook: %w", err)
+		}
+
+		pexReactor = createPEXReactorAndAddToSwitch(addrBook, config, sw, logger)
 	}
 
 	if config.RPC.PprofListenAddress != "" {
@@ -438,19 +429,37 @@ func makeNode(config *cfg.Config,
 		bcReactor:        bcReactor,
 		mempoolReactor:   mpReactor,
 		mempool:          mp,
-		consensusState:   csState,
 		consensusReactor: csReactor,
 		stateSyncReactor: stateSyncReactor,
 		stateSync:        stateSync,
 		pexReactor:       pexReactor,
-		pexReactorV2:     pexReactorV2,
 		evidenceReactor:  evReactor,
-		evidencePool:     evPool,
-		proxyApp:         proxyApp,
 		indexerService:   indexerService,
 		eventBus:         eventBus,
-		eventSinks:       eventSinks,
+
+		rpcEnv: &rpccore.Environment{
+			ProxyAppQuery:   proxyApp.Query(),
+			ProxyAppMempool: proxyApp.Mempool(),
+
+			StateStore:       stateStore,
+			BlockStore:       blockStore,
+			EvidencePool:     evPool,
+			ConsensusState:   csState,
+			P2PPeers:         sw,
+			BlockSyncReactor: bcReactor.(cs.BlockSyncReactor),
+
+			GenDoc:           genDoc,
+			EventSinks:       eventSinks,
+			ConsensusReactor: csReactor,
+			EventBus:         eventBus,
+			Mempool:          mp,
+			Logger:           logger.With("module", "rpc"),
+			Config:           *config.RPC,
+		},
 	}
+
+	node.rpcEnv.P2PTransport = node
+
 	node.BaseService = *service.NewBaseService(logger, "Node", node)
 
 	return node, nil
@@ -483,25 +492,6 @@ func makeSeedNode(config *cfg.Config,
 	p2pMetrics := p2p.PrometheusMetrics(config.Instrumentation.Namespace, "chain_id", genDoc.ChainID)
 	p2pLogger := logger.With("module", "p2p")
 	transport := createTransport(p2pLogger, config)
-	sw := createSwitch(
-		config, transport, p2pMetrics, nil, nil,
-		nil, nil, nil, nil, nodeInfo, nodeKey, p2pLogger,
-	)
-
-	err = sw.AddPersistentPeers(strings.SplitAndTrimEmpty(config.P2P.PersistentPeers, ",", " "))
-	if err != nil {
-		return nil, fmt.Errorf("could not add peers from persistent_peers field: %w", err)
-	}
-
-	err = sw.AddUnconditionalPeerIDs(strings.SplitAndTrimEmpty(config.P2P.UnconditionalPeerIDs, ",", " "))
-	if err != nil {
-		return nil, fmt.Errorf("could not add peer ids from unconditional_peer_ids field: %w", err)
-	}
-
-	addrBook, err := createAddrBookAndSetOnSwitch(config, sw, p2pLogger, nodeKey)
-	if err != nil {
-		return nil, fmt.Errorf("could not create addrbook: %w", err)
-	}
 
 	peerManager, err := createPeerManager(config, dbProvider, p2pLogger, nodeKey.ID)
 	if err != nil {
@@ -515,8 +505,9 @@ func makeSeedNode(config *cfg.Config,
 	}
 
 	var (
-		pexReactor   *pex.Reactor
-		pexReactorV2 *pex.ReactorV2
+		pexReactor service.Service
+		sw         *p2p.Switch
+		addrBook   pex.AddrBook
 	)
 
 	// add the pex reactor
@@ -526,11 +517,31 @@ func makeSeedNode(config *cfg.Config,
 	pexCh := pex.ChannelDescriptor()
 	transport.AddChannelDescriptors([]*p2p.ChannelDescriptor{&pexCh})
 	if config.P2P.DisableLegacy {
-		pexReactorV2, err = createPEXReactorV2(config, logger, peerManager, router)
+		pexReactor, err = createPEXReactorV2(config, logger, peerManager, router)
 		if err != nil {
 			return nil, err
 		}
 	} else {
+		sw = createSwitch(
+			config, transport, p2pMetrics, nil, nil,
+			nil, nil, nil, nil, nodeInfo, nodeKey, p2pLogger,
+		)
+
+		err = sw.AddPersistentPeers(strings.SplitAndTrimEmpty(config.P2P.PersistentPeers, ",", " "))
+		if err != nil {
+			return nil, fmt.Errorf("could not add peers from persistent_peers field: %w", err)
+		}
+
+		err = sw.AddUnconditionalPeerIDs(strings.SplitAndTrimEmpty(config.P2P.UnconditionalPeerIDs, ",", " "))
+		if err != nil {
+			return nil, fmt.Errorf("could not add peer ids from unconditional_peer_ids field: %w", err)
+		}
+
+		addrBook, err = createAddrBookAndSetOnSwitch(config, sw, p2pLogger, nodeKey)
+		if err != nil {
+			return nil, fmt.Errorf("could not create addrbook: %w", err)
+		}
+
 		pexReactor = createPEXReactorAndAddToSwitch(addrBook, config, sw, logger)
 	}
 
@@ -553,8 +564,7 @@ func makeSeedNode(config *cfg.Config,
 		peerManager: peerManager,
 		router:      router,
 
-		pexReactor:   pexReactor,
-		pexReactorV2: pexReactorV2,
+		pexReactor: pexReactor,
 	}
 	node.BaseService = *service.NewBaseService(logger, "SeedNode", node)
 
@@ -595,23 +605,22 @@ func (n *nodeImpl) OnStart() error {
 	}
 
 	n.isListening = true
-
 	n.Logger.Info("p2p service", "legacy_enabled", !n.config.P2P.DisableLegacy)
 
 	if n.config.P2P.DisableLegacy {
-		err = n.router.Start()
+		if err = n.router.Start(); err != nil {
+			return err
+		}
 	} else {
 		// Add private IDs to addrbook to block those peers being added
 		n.addrBook.AddPrivateIDs(strings.SplitAndTrimEmpty(n.config.P2P.PrivatePeerIDs, ",", " "))
-		err = n.sw.Start()
-	}
-	if err != nil {
-		return err
+		if err = n.sw.Start(); err != nil {
+			return err
+		}
 	}
 
 	if n.config.Mode != cfg.ModeSeed {
 		if n.config.BlockSync.Version == cfg.BlockSyncV0 {
-			// Start the real blockchain reactor separately since the switch uses the shim.
 			if err := n.bcReactor.Start(); err != nil {
 				return err
 			}
@@ -638,8 +647,8 @@ func (n *nodeImpl) OnStart() error {
 		}
 	}
 
-	if n.config.P2P.DisableLegacy && n.pexReactorV2 != nil {
-		if err := n.pexReactorV2.Start(); err != nil {
+	if n.config.P2P.DisableLegacy {
+		if err := n.pexReactor.Start(); err != nil {
 			return err
 		}
 	} else {
@@ -648,7 +657,6 @@ func (n *nodeImpl) OnStart() error {
 		if err != nil {
 			return fmt.Errorf("could not dial peers from persistent-peers field: %w", err)
 		}
-
 	}
 
 	// Run state sync
@@ -723,10 +731,8 @@ func (n *nodeImpl) OnStop() {
 		}
 	}
 
-	if n.config.P2P.DisableLegacy && n.pexReactorV2 != nil {
-		if err := n.pexReactorV2.Stop(); err != nil {
-			n.Logger.Error("failed to stop the PEX v2 reactor", "err", err)
-		}
+	if err := n.pexReactor.Stop(); err != nil {
+		n.Logger.Error("failed to stop the PEX v2 reactor", "err", err)
 	}
 
 	if n.config.P2P.DisableLegacy {
@@ -767,55 +773,23 @@ func (n *nodeImpl) OnStop() {
 	}
 }
 
-// ConfigureRPC makes sure RPC has all the objects it needs to operate.
-func (n *nodeImpl) ConfigureRPC() (*rpccore.Environment, error) {
-	rpcCoreEnv := rpccore.Environment{
-		ProxyAppQuery:   n.proxyApp.Query(),
-		ProxyAppMempool: n.proxyApp.Mempool(),
-
-		StateStore:     n.stateStore,
-		BlockStore:     n.blockStore,
-		EvidencePool:   n.evidencePool,
-		ConsensusState: n.consensusState,
-		P2PPeers:       n.sw,
-		P2PTransport:   n,
-
-		GenDoc:           n.genesisDoc,
-		EventSinks:       n.eventSinks,
-		ConsensusReactor: n.consensusReactor,
-		EventBus:         n.eventBus,
-		Mempool:          n.mempool,
-
-		Logger: n.Logger.With("module", "rpc"),
-
-		Config:           *n.config.RPC,
-		BlockSyncReactor: n.bcReactor.(cs.BlockSyncReactor),
-	}
+func (n *nodeImpl) startRPC() ([]net.Listener, error) {
 	if n.config.Mode == cfg.ModeValidator {
 		pubKey, err := n.privValidator.GetPubKey(context.TODO())
 		if pubKey == nil || err != nil {
 			return nil, fmt.Errorf("can't get pubkey: %w", err)
 		}
-		rpcCoreEnv.PubKey = pubKey
+		n.rpcEnv.PubKey = pubKey
 	}
-	if err := rpcCoreEnv.InitGenesisChunks(); err != nil {
-		return nil, err
-	}
-
-	return &rpcCoreEnv, nil
-}
-
-func (n *nodeImpl) startRPC() ([]net.Listener, error) {
-	env, err := n.ConfigureRPC()
-	if err != nil {
+	if err := n.rpcEnv.InitGenesisChunks(); err != nil {
 		return nil, err
 	}
 
 	listenAddrs := strings.SplitAndTrimEmpty(n.config.RPC.ListenAddress, ",", " ")
-	routes := env.GetRoutes()
+	routes := n.rpcEnv.GetRoutes()
 
 	if n.config.RPC.Unsafe {
-		env.AddUnsafe(routes)
+		n.rpcEnv.AddUnsafe(routes)
 	}
 
 	config := rpcserver.DefaultConfig()
@@ -912,7 +886,7 @@ func (n *nodeImpl) startRPC() ([]net.Listener, error) {
 			return nil, err
 		}
 		go func() {
-			if err := grpccore.StartGRPCServer(env, listener); err != nil {
+			if err := grpccore.StartGRPCServer(n.rpcEnv, listener); err != nil {
 				n.Logger.Error("Error starting gRPC server", "err", err)
 			}
 		}()
@@ -945,46 +919,16 @@ func (n *nodeImpl) startPrometheusServer(addr string) *http.Server {
 	return srv
 }
 
-// Switch returns the Node's Switch.
-func (n *nodeImpl) Switch() *p2p.Switch {
-	return n.sw
-}
-
-// BlockStore returns the Node's BlockStore.
-func (n *nodeImpl) BlockStore() *store.BlockStore {
-	return n.blockStore
-}
-
-// ConsensusState returns the Node's ConsensusState.
-func (n *nodeImpl) ConsensusState() *cs.State {
-	return n.consensusState
-}
-
 // ConsensusReactor returns the Node's ConsensusReactor.
 func (n *nodeImpl) ConsensusReactor() *cs.Reactor {
 	return n.consensusReactor
 }
 
-// MempoolReactor returns the Node's mempool reactor.
-func (n *nodeImpl) MempoolReactor() service.Service {
-	return n.mempoolReactor
-}
-
 // Mempool returns the Node's mempool.
 func (n *nodeImpl) Mempool() mempool.Mempool {
 	return n.mempool
 }
 
-// PEXReactor returns the Node's PEXReactor. It returns nil if PEX is disabled.
-func (n *nodeImpl) PEXReactor() *pex.Reactor {
-	return n.pexReactor
-}
-
-// EvidencePool returns the Node's EvidencePool.
-func (n *nodeImpl) EvidencePool() *evidence.Pool {
-	return n.evidencePool
-}
-
 // EventBus returns the Node's EventBus.
 func (n *nodeImpl) EventBus() *types.EventBus {
 	return n.eventBus
@@ -1001,19 +945,9 @@ func (n *nodeImpl) GenesisDoc() *types.GenesisDoc {
 	return n.genesisDoc
 }
 
-// ProxyApp returns the Node's AppConns, representing its connections to the ABCI application.
-func (n *nodeImpl) ProxyApp() proxy.AppConns {
-	return n.proxyApp
-}
-
-// Config returns the Node's config.
-func (n *nodeImpl) Config() *cfg.Config {
-	return n.config
-}
-
-// EventSinks returns the Node's event indexing sinks.
-func (n *nodeImpl) EventSinks() []indexer.EventSink {
-	return n.eventSinks
+// RPCEnvironment makes sure RPC has all the objects it needs to operate.
+func (n *nodeImpl) RPCEnvironment() *rpccore.Environment {
+	return n.rpcEnv
 }
 
 //------------------------------------------------------------------------------
diff --git a/node/node_test.go b/node/node_test.go
index 16edb4210..64b28c0bb 100644
--- a/node/node_test.go
+++ b/node/node_test.go
@@ -513,36 +513,50 @@ func TestNodeSetEventSink(t *testing.T) {
 	config := cfg.ResetTestRoot("node_app_version_test")
 	defer os.RemoveAll(config.RootDir)
 
-	n := getTestNode(t, config, log.TestingLogger())
+	logger := log.TestingLogger()
+	setupTest := func(t *testing.T, conf *cfg.Config) []indexer.EventSink {
+		eventBus, err := createAndStartEventBus(logger)
+		require.NoError(t, err)
 
-	assert.Equal(t, 1, len(n.eventSinks))
-	assert.Equal(t, indexer.KV, n.eventSinks[0].Type())
+		genDoc, err := types.GenesisDocFromFile(config.GenesisFile())
+		require.NoError(t, err)
+
+		indexService, eventSinks, err := createAndStartIndexerService(config,
+			cfg.DefaultDBProvider, eventBus, logger, genDoc.ChainID)
+		require.NoError(t, err)
+		t.Cleanup(func() { require.NoError(t, indexService.Stop()) })
+		return eventSinks
+	}
+
+	eventSinks := setupTest(t, config)
+	assert.Equal(t, 1, len(eventSinks))
+	assert.Equal(t, indexer.KV, eventSinks[0].Type())
 
 	config.TxIndex.Indexer = []string{"null"}
-	n = getTestNode(t, config, log.TestingLogger())
+	eventSinks = setupTest(t, config)
 
-	assert.Equal(t, 1, len(n.eventSinks))
-	assert.Equal(t, indexer.NULL, n.eventSinks[0].Type())
+	assert.Equal(t, 1, len(eventSinks))
+	assert.Equal(t, indexer.NULL, eventSinks[0].Type())
 
 	config.TxIndex.Indexer = []string{"null", "kv"}
-	n = getTestNode(t, config, log.TestingLogger())
+	eventSinks = setupTest(t, config)
 
-	assert.Equal(t, 1, len(n.eventSinks))
-	assert.Equal(t, indexer.NULL, n.eventSinks[0].Type())
+	assert.Equal(t, 1, len(eventSinks))
+	assert.Equal(t, indexer.NULL, eventSinks[0].Type())
 
 	config.TxIndex.Indexer = []string{"kvv"}
-	ns, err := newDefaultNode(config, log.TestingLogger())
+	ns, err := newDefaultNode(config, logger)
 	assert.Nil(t, ns)
 	assert.Equal(t, errors.New("unsupported event sink type"), err)
 
 	config.TxIndex.Indexer = []string{}
-	n = getTestNode(t, config, log.TestingLogger())
+	eventSinks = setupTest(t, config)
 
-	assert.Equal(t, 1, len(n.eventSinks))
-	assert.Equal(t, indexer.NULL, n.eventSinks[0].Type())
+	assert.Equal(t, 1, len(eventSinks))
+	assert.Equal(t, indexer.NULL, eventSinks[0].Type())
 
 	config.TxIndex.Indexer = []string{"psql"}
-	ns, err = newDefaultNode(config, log.TestingLogger())
+	ns, err = newDefaultNode(config, logger)
 	assert.Nil(t, ns)
 	assert.Equal(t, errors.New("the psql connection settings cannot be empty"), err)
 
@@ -550,46 +564,46 @@ func TestNodeSetEventSink(t *testing.T) {
 
 	config.TxIndex.Indexer = []string{"psql"}
 	config.TxIndex.PsqlConn = psqlConn
-	n = getTestNode(t, config, log.TestingLogger())
-	assert.Equal(t, 1, len(n.eventSinks))
-	assert.Equal(t, indexer.PSQL, n.eventSinks[0].Type())
-	n.OnStop()
+	eventSinks = setupTest(t, config)
+
+	assert.Equal(t, 1, len(eventSinks))
+	assert.Equal(t, indexer.PSQL, eventSinks[0].Type())
 
 	config.TxIndex.Indexer = []string{"psql", "kv"}
 	config.TxIndex.PsqlConn = psqlConn
-	n = getTestNode(t, config, log.TestingLogger())
-	assert.Equal(t, 2, len(n.eventSinks))
+	eventSinks = setupTest(t, config)
+
+	assert.Equal(t, 2, len(eventSinks))
 	// we use map to filter the duplicated sinks, so it's not guarantee the order when append sinks.
-	if n.eventSinks[0].Type() == indexer.KV {
-		assert.Equal(t, indexer.PSQL, n.eventSinks[1].Type())
+	if eventSinks[0].Type() == indexer.KV {
+		assert.Equal(t, indexer.PSQL, eventSinks[1].Type())
 	} else {
-		assert.Equal(t, indexer.PSQL, n.eventSinks[0].Type())
-		assert.Equal(t, indexer.KV, n.eventSinks[1].Type())
+		assert.Equal(t, indexer.PSQL, eventSinks[0].Type())
+		assert.Equal(t, indexer.KV, eventSinks[1].Type())
 	}
-	n.OnStop()
 
 	config.TxIndex.Indexer = []string{"kv", "psql"}
 	config.TxIndex.PsqlConn = psqlConn
-	n = getTestNode(t, config, log.TestingLogger())
-	assert.Equal(t, 2, len(n.eventSinks))
-	if n.eventSinks[0].Type() == indexer.KV {
-		assert.Equal(t, indexer.PSQL, n.eventSinks[1].Type())
+	eventSinks = setupTest(t, config)
+
+	assert.Equal(t, 2, len(eventSinks))
+	if eventSinks[0].Type() == indexer.KV {
+		assert.Equal(t, indexer.PSQL, eventSinks[1].Type())
 	} else {
-		assert.Equal(t, indexer.PSQL, n.eventSinks[0].Type())
-		assert.Equal(t, indexer.KV, n.eventSinks[1].Type())
+		assert.Equal(t, indexer.PSQL, eventSinks[0].Type())
+		assert.Equal(t, indexer.KV, eventSinks[1].Type())
 	}
-	n.OnStop()
 
 	var e = errors.New("found duplicated sinks, please check the tx-index section in the config.toml")
 	config.TxIndex.Indexer = []string{"psql", "kv", "Kv"}
 	config.TxIndex.PsqlConn = psqlConn
-	_, err = newDefaultNode(config, log.TestingLogger())
+	_, err = newDefaultNode(config, logger)
 	require.Error(t, err)
 	assert.Equal(t, e, err)
 
 	config.TxIndex.Indexer = []string{"Psql", "kV", "kv", "pSql"}
 	config.TxIndex.PsqlConn = psqlConn
-	_, err = newDefaultNode(config, log.TestingLogger())
+	_, err = newDefaultNode(config, logger)
 	require.Error(t, err)
 	assert.Equal(t, e, err)
 }
diff --git a/node/setup.go b/node/setup.go
index fb88846f5..ae706ee22 100644
--- a/node/setup.go
+++ b/node/setup.go
@@ -649,7 +649,7 @@ func createPEXReactorV2(
 	logger log.Logger,
 	peerManager *p2p.PeerManager,
 	router *p2p.Router,
-) (*pex.ReactorV2, error) {
+) (service.Service, error) {
 
 	channel, err := router.OpenChannel(pex.ChannelDescriptor(), &protop2p.PexMessage{}, 128)
 	if err != nil {
diff --git a/rpc/client/local/local.go b/rpc/client/local/local.go
index 0663ebf67..d752e6a93 100644
--- a/rpc/client/local/local.go
+++ b/rpc/client/local/local.go
@@ -2,6 +2,7 @@ package local
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"time"
 
@@ -46,15 +47,15 @@ type Local struct {
 // NodeService describes the portion of the node interface that the
 // local RPC client constructor needs to build a local client.
 type NodeService interface {
-	ConfigureRPC() (*rpccore.Environment, error)
+	RPCEnvironment() *rpccore.Environment
 	EventBus() *types.EventBus
 }
 
 // New configures a client that calls the Node directly.
 func New(node NodeService) (*Local, error) {
-	env, err := node.ConfigureRPC()
-	if err != nil {
-		return nil, err
+	env := node.RPCEnvironment()
+	if env == nil {
+		return nil, errors.New("rpc is nil")
 	}
 	return &Local{
 		EventBus: node.EventBus(),
diff --git a/rpc/core/net.go b/rpc/core/net.go
index edcf8fffa..8f3e89d77 100644
--- a/rpc/core/net.go
+++ b/rpc/core/net.go
@@ -36,6 +36,10 @@ func (env *Environment) NetInfo(ctx *rpctypes.Context) (*ctypes.ResultNetInfo, e
 
 // UnsafeDialSeeds dials the given seeds (comma-separated id@IP:PORT).
 func (env *Environment) UnsafeDialSeeds(ctx *rpctypes.Context, seeds []string) (*ctypes.ResultDialSeeds, error) {
+	if env.P2PPeers == nil {
+		return nil, errors.New("peer management system does not support this operation")
+	}
+
 	if len(seeds) == 0 {
 		return &ctypes.ResultDialSeeds{}, fmt.Errorf("%w: no seeds provided", ctypes.ErrInvalidRequest)
 	}
@@ -53,6 +57,10 @@ func (env *Environment) UnsafeDialPeers(
 	peers []string,
 	persistent, unconditional, private bool) (*ctypes.ResultDialPeers, error) {
 
+	if env.P2PPeers == nil {
+		return nil, errors.New("peer management system does not support this operation")
+	}
+
 	if len(peers) == 0 {
 		return &ctypes.ResultDialPeers{}, fmt.Errorf("%w: no peers provided", ctypes.ErrInvalidRequest)
 	}