Update docs and add default config

builder/files/config.toml

@@ -8,6 +8,7 @@ chain = "mainnet"
 # vmdebug = false
 datadir = "/var/lib/bor/data"
 # ancient = ""
+db.engine = "leveldb"
 # keystore = "/var/lib/bor/keystore"
 # "rpc.batchlimit" = 100
 # "rpc.returndatalimit" = 100000

docs/cli/example_config.toml

@@ -8,6 +8,7 @@ verbosity = 3                   # Logging verbosity for the server (5=trace|4=de
 vmdebug = false                 # Record information useful for VM and contract debugging
 datadir = "var/lib/bor"         # Path of the data directory to store information
 ancient = ""                    # Data directory for ancient chain segments (default = inside chaindata)
+db.engine = "leveldb"           # Used to select leveldb or pebble as database (default = leveldb)
 keystore = ""                   # Path of the directory where keystores are located
 "rpc.batchlimit" = 100          # Maximum number of messages in a batch (default=100, use 0 for no limits)
 "rpc.returndatalimit" = 100000  # Maximum size (in bytes) a result of an rpc request could have (default=100000, use 0 for no limits)

docs/cli/server.md

@@ -18,6 +18,8 @@ The ```bor server``` command runs the Bor client.
 
 - ```datadir.ancient```: Data directory for ancient chain segments (default = inside chaindata)
 
+- ```db.engine```: Backing database implementation to use ('leveldb' or 'pebble') (default: leveldb)
+
 - ```keystore```: Path of the directory where keystores are located
 
 - ```rpc.batchlimit```: Maximum number of messages in a batch (default=100, use 0 for no limits) (default: 100)

internal/cli/server/config.go

@@ -595,6 +595,7 @@ func DefaultConfig() *Config {
 		EnablePreimageRecording: false,
 		DataDir:                 DefaultDataDir(),
 		Ancient:                 "",
+		DBEngine:                "leveldb",
 		Logging: &LoggingConfig{
 			Vmodule:   "",
 			Json:      false,

internal/cli/server/flags.go

@@ -57,7 +57,7 @@ func (c *Command) Flags() *flagset.Flagset {
 		Name:    "db.engine",
 		Usage:   "Backing database implementation to use ('leveldb' or 'pebble')",
 		Value:   &c.cliConfig.DBEngine,
-		Default: "leveldb",
+		Default: c.cliConfig.DBEngine,
 	})
 	f.StringFlag(&flagset.StringFlag{
 		Name:  "keystore",

packaging/templates/mainnet-v1/archive/config.toml

@@ -4,6 +4,7 @@ chain = "mainnet"
 # vmdebug = false
 datadir = "/var/lib/bor/data"
 # ancient = ""
+# db.engine = "leveldb"
 # keystore = ""
 # "rpc.batchlimit" = 100
 # "rpc.returndatalimit" = 100000

packaging/templates/mainnet-v1/sentry/sentry/bor/config.toml

@@ -4,6 +4,7 @@ chain = "mainnet"
 # vmdebug = false
 datadir = "/var/lib/bor/data"
 # ancient = ""
+# db.engine = "leveldb"
 # keystore = ""
 # "rpc.batchlimit" = 100
 # "rpc.returndatalimit" = 100000

packaging/templates/mainnet-v1/sentry/validator/bor/config.toml

@@ -6,6 +6,7 @@ chain = "mainnet"
 # vmdebug = false
 datadir = "/var/lib/bor/data"
 # ancient = ""
+# db.engine = "leveldb"
 # keystore = "$BOR_DIR/keystore"
 # "rpc.batchlimit" = 100
 # "rpc.returndatalimit" = 100000

packaging/templates/mainnet-v1/without-sentry/bor/config.toml

@@ -6,6 +6,7 @@ chain = "mainnet"
 # vmdebug = false
 datadir = "/var/lib/bor/data"
 # ancient = ""
+# db.engine = "leveldb"
 # keystore = "$BOR_DIR/keystore"
 # "rpc.batchlimit" = 100
 # "rpc.returndatalimit" = 100000

packaging/templates/testnet-v4/archive/config.toml

@@ -4,6 +4,7 @@ chain = "mumbai"
 # vmdebug = false
 datadir = "/var/lib/bor/data"
 # ancient = ""
+# db.engine = "leveldb"
 # keystore = ""
 # "rpc.batchlimit" = 100
 # "rpc.returndatalimit" = 100000

packaging/templates/testnet-v4/sentry/sentry/bor/config.toml

@@ -4,6 +4,7 @@ chain = "mumbai"
 # vmdebug = false
 datadir = "/var/lib/bor/data"
 # ancient = ""
+# db.engine = "leveldb"
 # keystore = ""
 # "rpc.batchlimit" = 100
 # "rpc.returndatalimit" = 100000

packaging/templates/testnet-v4/sentry/validator/bor/config.toml

@@ -6,6 +6,7 @@ chain = "mumbai"
 # vmdebug = false
 datadir = "/var/lib/bor/data"
 # ancient = ""
+# db.engine = "leveldb"
 # keystore = "$BOR_DIR/keystore"
 # "rpc.batchlimit" = 100
 # "rpc.returndatalimit" = 100000

packaging/templates/testnet-v4/without-sentry/bor/config.toml

@@ -6,6 +6,7 @@ chain = "mumbai"
 # vmdebug = false
 datadir = "/var/lib/bor/data"
 # ancient = ""
+# db.engine = "leveldb"
 # keystore = "$BOR_DIR/keystore"
 # "rpc.batchlimit" = 100
 # "rpc.returndatalimit" = 100000