Log errors that occur while finding a common ancestor (#814)

Signed-off-by: Adrian Sutton <adrian.sutton@consensys.net>
6 years ago · f6bb1b2279
parent 77581bcdfb
commit f6bb1b2279
1 changed files with 7 additions and 1 deletions
--- a/ethereum/eth/src/main/java/tech/pegasys/pantheon/ethereum/eth/sync/SyncTargetManager.java
+++ b/ethereum/eth/src/main/java/tech/pegasys/pantheon/ethereum/eth/sync/SyncTargetManager.java
@ -78,7 +78,13 @@ public abstract class SyncTargetManager<C> {
                        config.downloaderHeaderRequestSize(),
                        ethTasksTimer)
                    .run()
-                    .handle((r, t) -> r)
+                    .handle(
+                        (result, error) -> {
+                          if (error != null) {
+                            LOG.debug("Failed to find common ancestor", error);
+                          }
+                          return result;
+                        })
                    .thenCompose(
                        (target) -> {
                          if (target == null) {