Fix typos (#398)

Found via `typos --format brief`

src/config.rs

@@ -273,7 +273,7 @@ impl General {
 
     // These keepalive defaults should detect a dead connection within 30 seconds.
     // Tokio defaults to disabling keepalives which keeps dead connections around indefinitely.
-    // This can lead to permenant server pool exhaustion
+    // This can lead to permanent server pool exhaustion
     pub fn default_tcp_keepalives_idle() -> u64 {
         5 // 5 seconds
     }
@@ -422,7 +422,7 @@ pub struct Pool {
 
     pub shards: BTreeMap<String, Shard>,
     pub users: BTreeMap<String, User>,
-    // Note, don't put simple fields below these configs. There's a compatability issue with TOML that makes it
+    // Note, don't put simple fields below these configs. There's a compatibility issue with TOML that makes it
     // incompatible to have simple fields in TOML after complex objects. See
     // https://users.rust-lang.org/t/why-toml-to-string-get-error-valueaftertable/85903
 }

src/messages.rs

@@ -404,7 +404,7 @@ pub fn row_description(columns: &Vec<(&str, DataType)>) -> BytesMut {
     let mut res = BytesMut::new();
     let mut row_desc = BytesMut::new();
 
-    // how many colums we are storing
+    // how many columns we are storing
     row_desc.put_i16(columns.len() as i16);
 
     for (name, data_type) in columns {

src/multi_logger.rs

@@ -17,7 +17,7 @@ use log::{Level, Log, Metadata, Record, SetLoggerError};
 //
 // So to summarize, if no `STDOUT_LOG` env var is present, the logger is the default logger. If `STDOUT_LOG` is set, everything
 // but errors, that matches the log level set in the `STDOUT_LOG` env var is sent to stdout. You can have also some esoteric configuration
-// where you set `RUST_LOG=debug` and `STDOUT_LOG=info`, in here, erros will go to stderr, warns and infos to stdout and debugs to stderr.
+// where you set `RUST_LOG=debug` and `STDOUT_LOG=info`, in here, errors will go to stderr, warns and infos to stdout and debugs to stderr.
 //
 pub struct MultiLogger {
     stderr_logger: env_logger::Logger,

src/query_router.rs

@@ -1,4 +1,4 @@
-/// Route queries automatically based on explicitely requested
+/// Route queries automatically based on explicitly requested
 /// or implied query characteristics.
 use bytes::{Buf, BytesMut};
 use log::{debug, error};

src/stats.rs

@@ -66,7 +66,7 @@ impl Reporter {
         CLIENT_STATS.write().insert(client_id, stats);
     }
 
-    /// Reports a client is disconecting from the pooler.
+    /// Reports a client is disconnecting from the pooler.
     fn client_disconnecting(&self, client_id: i32) {
         CLIENT_STATS.write().remove(&client_id);
     }
@@ -76,7 +76,7 @@ impl Reporter {
     fn server_register(&self, server_id: i32, stats: Arc<ServerStats>) {
         SERVER_STATS.write().insert(server_id, stats);
     }
-    /// Reports a server connection is disconecting from the pooler.
+    /// Reports a server connection is disconnecting from the pooler.
     fn server_disconnecting(&self, server_id: i32) {
         SERVER_STATS.write().remove(&server_id);
     }

src/stats/client.rs

@@ -92,7 +92,7 @@ impl ClientStats {
         }
     }
 
-    /// Reports a client is disconecting from the pooler and
+    /// Reports a client is disconnecting from the pooler and
     /// update metrics on the corresponding pool.
     pub fn disconnect(&self) {
         self.reporter.client_disconnecting(self.client_id);
@@ -140,7 +140,7 @@ impl ClientStats {
         self.error_count.fetch_add(1, Ordering::Relaxed);
     }
 
-    /// Reportes the time spent by a client waiting to get a healthy connection from the pool
+    /// Reporters the time spent by a client waiting to get a healthy connection from the pool
     pub fn checkout_time(&self, microseconds: u64) {
         self.total_wait_time
             .fetch_add(microseconds, Ordering::Relaxed);

src/stats/server.rs

@@ -102,7 +102,7 @@ impl ServerStats {
         self.state.store(ServerState::Idle, Ordering::Relaxed);
     }
 
-    /// Reports a server connection is disconecting from the pooler.
+    /// Reports a server connection is disconnecting from the pooler.
     /// Also updates metrics on the pool regarding server usage.
     pub fn disconnect(&self) {
         self.reporter.server_disconnecting(self.server_id);