add config option to disable rocksdb LOG file

Signed-off-by: Jason Volk <jason@zemos.net>

src/config/mod.rs

@@ -190,6 +190,8 @@ pub struct Config {
 
 	#[serde(default = "default_rocksdb_log_level")]
 	pub rocksdb_log_level: String,
+	#[serde(default)]
+	pub rocksdb_log_stderr: bool,
 	#[serde(default = "default_rocksdb_max_log_file_size")]
 	pub rocksdb_max_log_file_size: usize,
 	#[serde(default = "default_rocksdb_log_time_to_roll")]
@@ -634,14 +636,16 @@ fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
 			#[cfg(feature = "brotli_compression")]
 			("Brotli HTTP Compression", &self.brotli_compression.to_string()),
 			#[cfg(feature = "rocksdb")]
-			("RocksDB database log level", &self.rocksdb_log_level),
+			("RocksDB database LOG level", &self.rocksdb_log_level),
+			#[cfg(feature = "rocksdb")]
+			("RocksDB database LOG to stderr", &self.rocksdb_log_stderr.to_string()),
 			#[cfg(feature = "rocksdb")]
-			("RocksDB database log time-to-roll", &self.rocksdb_log_time_to_roll.to_string()),
+			("RocksDB database LOG time-to-roll", &self.rocksdb_log_time_to_roll.to_string()),
 			#[cfg(feature = "rocksdb")]
 			("RocksDB Max LOG Files", &self.rocksdb_max_log_files.to_string()),
 			#[cfg(feature = "rocksdb")]
 			(
-				"RocksDB database max log file size",
+				"RocksDB database max LOG file size",
 				&self.rocksdb_max_log_file_size.to_string(),
 			),
 			#[cfg(feature = "rocksdb")]

src/database/rocksdb/opts.rs

@@ -161,6 +161,10 @@ fn set_logging_defaults(opts: &mut Options, config: &Config) {
 	opts.set_log_file_time_to_roll(config.rocksdb_log_time_to_roll);
 	opts.set_keep_log_file_num(config.rocksdb_max_log_files);
 	opts.set_stats_dump_period_sec(0);
+
+	if config.rocksdb_log_stderr {
+		opts.set_stderr_logger(rocksdb_log_level, "rocksdb");
+	}
 }
 
 fn set_compression_defaults(opts: &mut Options, config: &Config) {