fix(store-indexer): fix distance from follow block metric (#2791)

latticexyz · May 8, 2024 · 0d4e302 · 0d4e302
1 parent 51b137d
commit 0d4e302
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Showing 3 changed files with 7 additions and 2 deletions.
diff --git a/.changeset/lazy-rivers-live.md b/.changeset/lazy-rivers-live.md
@@ -0,0 +1,5 @@
+---
+"@latticexyz/store-indexer": patch
+---
+
+Fixed the `distance_from_follow_block` gauge to be a positive number if the latest processed block is lagging behind the latest remote block.
diff --git a/packages/store-indexer/bin/postgres-indexer.ts b/packages/store-indexer/bin/postgres-indexer.ts
@@ -71,7 +71,7 @@ async function getDistanceFromFollowBlock(): Promise<bigint> {
     getLatestStoredBlockNumber(),
     publicClient.getBlock({ blockTag: env.FOLLOW_BLOCK_TAG }),
   ]);
-  return (latestStoredBlockNumber ?? -1n) - latestFollowBlock.number;
+  return latestFollowBlock.number - (latestStoredBlockNumber ?? -1n);
 }
 
 const latestStoredBlockNumber = await getLatestStoredBlockNumber();

diff --git a/packages/store-indexer/bin/sqlite-indexer.ts b/packages/store-indexer/bin/sqlite-indexer.ts
@@ -78,7 +78,7 @@ async function getDistanceFromFollowBlock(): Promise<bigint> {
     getLatestStoredBlockNumber(),
     publicClient.getBlock({ blockTag: env.FOLLOW_BLOCK_TAG }),
   ]);
-  return (latestStoredBlockNumber ?? -1n) - latestFollowBlock.number;
+  return latestFollowBlock.number - (latestStoredBlockNumber ?? -1n);
 }
 
 const currentChainState = await getCurrentChainState();