From 185dddd8c747f33d8c5f2e10f348015dcd655d16 Mon Sep 17 00:00:00 2001
From: nymkappa <vialjoris@hotmail.com>
Date: Thu, 24 Mar 2022 07:40:03 +0900
Subject: [PATCH] Truncate hashrates after #1435 - Fix hashrate indexing logs

---
 backend/src/api/database-migration.ts | 7 ++++++-
 backend/src/api/mining.ts             | 4 ++--
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/backend/src/api/database-migration.ts b/backend/src/api/database-migration.ts
index ffa9041e3..20519cbf2 100644
--- a/backend/src/api/database-migration.ts
+++ b/backend/src/api/database-migration.ts
@@ -6,7 +6,7 @@ import logger from '../logger';
 const sleep = (ms: number) => new Promise(res => setTimeout(res, ms));
 
 class DatabaseMigration {
-  private static currentVersion = 15;
+  private static currentVersion = 16;
   private queryTimeout = 120000;
   private statisticsAddedIndexed = false;
 
@@ -175,6 +175,11 @@ class DatabaseMigration {
         await this.$executeQuery(connection, 'ALTER TABLE `hashrates` MODIFY `pool_id` SMALLINT UNSIGNED NOT NULL DEFAULT "0"');
       }
 
+      if (databaseSchemaVersion < 16 && isBitcoin === true) {
+        logger.warn(`'hashrates' table has been truncated. Re-indexing from scratch.`);
+        await this.$executeQuery(connection, 'TRUNCATE hashrates;'); // Need to re-index because we changed timestamps
+      }
+
       connection.release();
     } catch (e) {
       connection.release();
diff --git a/backend/src/api/mining.ts b/backend/src/api/mining.ts
index 75fea9768..35884efb3 100644
--- a/backend/src/api/mining.ts
+++ b/backend/src/api/mining.ts
@@ -154,7 +154,7 @@ class Mining {
         await HashratesRepository.$saveHashrates(hashrates);
         hashrates.length = 0;
 
-        const elapsedSeconds = Math.max(1, Math.round((new Date().getTime()) - startedAt));
+        const elapsedSeconds = Math.max(1, Math.round((new Date().getTime()) - startedAt)) / 1000;
         if (elapsedSeconds > 1) {
           const weeksPerSeconds = (indexedThisRun / elapsedSeconds).toFixed(2);
           const formattedDate = new Date(fromTimestamp).toUTCString();
@@ -244,7 +244,7 @@ class Mining {
           hashrates.length = 0;
         }
 
-        const elapsedSeconds = Math.max(1, Math.round(new Date().getTime() - startedAt));
+        const elapsedSeconds = Math.max(1, Math.round(new Date().getTime() - startedAt)) / 1000;
         if (elapsedSeconds > 1) {
           const daysPerSeconds = (indexedThisRun / elapsedSeconds).toFixed(2);
           const formattedDate = new Date(fromTimestamp).toUTCString();