Add BigTableUploadService

ledger/Cargo.toml

@@ -53,6 +53,7 @@ tar = "0.4.28"
 thiserror = "1.0"
 tempfile = "3.1.0"
 lazy_static = "1.4.0"
+tokio = { version = "0.2.22", features = ["full"] }
 trees = "0.2.1"
 
 [dependencies.rocksdb]

ledger/src/bigtable_upload.rs

@@ -20,7 +20,7 @@ pub async fn upload_confirmed_blocks(
 ) -> Result<(), Box<dyn std::error::Error>> {
     let mut measure = Measure::start("entire upload");
 
-    info!("Loading ledger slots...");
+    info!("Loading ledger slots starting at {}...", starting_slot);
     let blockstore_slots: Vec<_> = blockstore
         .slot_meta_iterator(starting_slot)
         .map_err(|err| {
@@ -40,8 +40,11 @@ pub async fn upload_confirmed_blocks(
         .collect();
 
     if blockstore_slots.is_empty() {
-        info!("Ledger has no slots in the specified range");
-        return Ok(());
+        return Err(format!(
+            "Ledger has no slots from {} to {:?}",
+            starting_slot, ending_slot
+        )
+        .into());
     }
 
     info!(
@@ -136,7 +139,7 @@ pub async fn upload_confirmed_blocks(
                         }
                     };
 
-                    if i % NUM_BLOCKS_TO_UPLOAD_IN_PARALLEL == 0 {
+                    if i > 0 && i % NUM_BLOCKS_TO_UPLOAD_IN_PARALLEL == 0 {
                         info!(
                             "{}% of blocks processed ({}/{})",
                             i * 100 / blocks_to_upload.len(),