diff --git a/src/compute/src/memory_management/memory_manager.rs b/src/compute/src/memory_management/memory_manager.rs
index 044dceef35b91..97d6be1c38dcd 100644
--- a/src/compute/src/memory_management/memory_manager.rs
+++ b/src/compute/src/memory_management/memory_manager.rs
@@ -92,11 +92,20 @@ impl GlobalMemoryManager {
     ) {
         use std::time::Duration;
 
+        use risingwave_common::util::epoch::Epoch;
+
         use crate::memory_management::policy::MemoryControlStats;
 
         let mut tick_interval =
             tokio::time::interval(Duration::from_millis(self.barrier_interval_ms as u64));
-        let mut memory_control_stats = MemoryControlStats::default();
+        let mut memory_control_stats = MemoryControlStats {
+            batch_memory_usage: 0,
+            streaming_memory_usage: 0,
+            jemalloc_allocated_mib: 0,
+            lru_watermark_step: 0,
+            lru_watermark_time_ms: Epoch::physical_now(),
+            lru_physical_now_ms: Epoch::physical_now(),
+        };
 
         loop {
             // Wait for a while to check if need eviction.
diff --git a/src/compute/src/memory_management/policy.rs b/src/compute/src/memory_management/policy.rs
index 0c51597a1cdd4..7f1a4013a4086 100644
--- a/src/compute/src/memory_management/policy.rs
+++ b/src/compute/src/memory_management/policy.rs
@@ -24,7 +24,6 @@ use risingwave_stream::task::LocalStreamManager;
 
 /// `MemoryControlStats` contains the necessary information for memory control, including both batch
 /// and streaming.
-#[derive(Default)]
 pub struct MemoryControlStats {
     pub batch_memory_usage: usize,
     pub streaming_memory_usage: usize,