fix: State Sync no longer corrupts the DB (#8732)

If a node gets stopped during State Sync then it fails to start due to an `unwrap()` on `send_network_chain_info()`. The state of the DB itself is fine. This PR makes the node gracefully handle that scenario and State Sync can safely resume and complete.

Fix: #8733

CHANGELOG.md

@@ -8,6 +8,7 @@
 
 * Experimental option to dump state of every epoch to external storage. [#8661](https://github.com/near/nearcore/pull/8661)
 * State-viewer tool to dump and apply state changes from/to a range of blocks [#8628](https://github.com/near/nearcore/pull/8628)
+* Node can restart if State Sync gets interrupted [#8732](https://github.com/near/nearcore/pull/8732)
 
 ## 1.32.0
 

chain/client/src/client.rs

@@ -1454,7 +1454,7 @@ impl Client {
             // send_network_chain_info should be called whenever the chain head changes.
             // See send_network_chain_info() for more details.
             if let Err(err) = self.send_network_chain_info() {
-                error!(target:"client","Failed to update network chain info: {err}");
+                error!(target: "client", ?err, "Failed to update network chain info");
             }
         }
 

chain/client/src/client_actor.rs

@@ -255,7 +255,9 @@ impl Actor for ClientActor {
         // Start catchup job.
         self.catchup(ctx);
 
-        self.client.send_network_chain_info().unwrap();
+        if let Err(err) = self.client.send_network_chain_info() {
+            error!(target: "client", ?err, "Failed to update network chain info");
+        }
     }
 }