1 files changed, 8 insertions, 1 deletions
diff --git a/internal/cache/cache.go b/internal/cache/cache.go
index a2d86a0..d6a31f3 100644
--- a/internal/cache/cache.go
+++ b/internal/cache/cache.go
@@ -2,6 +2,7 @@ package cache
 
 import (
 	"database/sql"
+	"log/slog"
 	"sync"
 	"sync/atomic"
 	"time"
@@ -199,16 +200,22 @@ func (c *Cache) evictLoop() {
 	}
 }
 func (c *Cache) writeToDB(key Key, e *entry) {
+	if c.db == nil {
+		return
+	}
 	data, err := e.msg.Pack()
 	if err != nil {
 		return
 	}
-	c.db.Exec(
+	_, err = c.db.Exec(
 		`INSERT OR REPLACE INTO cache (name, qtype, class, data, stored_at, ttl_ns)
 		VALUES (?, ?, ?, ?, ?, ?)`,
 		key.Name, key.Qtype, key.Class, data,
 		e.storedAt.UnixNano(), int64(e.ttl),
 	)
+	if err != nil {
+		slog.Warn("cache write to db failed", "err", err)
+	}
 }
 
 func (c *Cache) loadFromDB() {