From 417b1319cd78fc561d5a1f866aff87b5b367bc54 Mon Sep 17 00:00:00 2001
From: John Spray <john@neon.tech>
Date: Fri, 2 Aug 2024 13:29:24 +0100
Subject: [PATCH] DNM debug

---
 pageserver/src/pgdatadir_mapping.rs | 3 +++
 pageserver/src/walingest.rs         | 1 +
 2 files changed, 4 insertions(+)

diff --git a/pageserver/src/pgdatadir_mapping.rs b/pageserver/src/pgdatadir_mapping.rs
index d6a027cde3..d706edd25a 100644
--- a/pageserver/src/pgdatadir_mapping.rs
+++ b/pageserver/src/pgdatadir_mapping.rs
@@ -1037,6 +1037,7 @@ impl Timeline {
 
 /// Write something other than a simple postgres key/value: unlike regular relation page writes, these
 /// require access to a Timeline in order to do read-modify-write.
+#[derive(Debug)]
 enum MetadataOp {
     // - Insert to DBDIR_KEY if this (spcnode, dbnode) does not already exist
     // - Insert to rel_dir_to_key(spcnode, dbnode)
@@ -1149,6 +1150,7 @@ impl MetadataOp {
         data_dir_mod: &mut DatadirModification<'a>,
         ctx: &RequestContext,
     ) -> anyhow::Result<()> {
+        eprintln!("MetadataOp::apply: {self:?}");
         match self {
             Self::UpsertRelDirectory { spcnode, dbnode } => {
                 // Add it to the directory (if it doesn't exist already)
@@ -1319,6 +1321,7 @@ impl<'a> DatadirModification<'a> {
 
     /// While applying a metadata op, write a materialized page.
     fn put_metadata_page(&mut self, lsn: Lsn, key: Key, value: Bytes) {
+        eprintln!("put_metadata_page {key} @ {lsn}");
         self.put_at_lsn(lsn, key, Value::Image(value.clone()));
 
         self.metadata_state.put(lsn, key, value);
diff --git a/pageserver/src/walingest.rs b/pageserver/src/walingest.rs
index 804c7fca97..d8bf80de62 100644
--- a/pageserver/src/walingest.rs
+++ b/pageserver/src/walingest.rs
@@ -92,6 +92,7 @@ impl WalIngest {
         decoded: &mut DecodedWALRecord,
         ctx: &RequestContext,
     ) -> anyhow::Result<bool> {
+        eprintln!("ingest_record @ {lsn}");
         WAL_INGEST.records_received.inc();
         let pg_version = modification.tline.pg_version;
         let prev_len = modification.len();