From 87b1e0ead238e032c100a54697093c87908217f0 Mon Sep 17 00:00:00 2001
From: kssenii <sumarokovakseniia@mail.ru>
Date: Thu, 21 Mar 2024 18:22:11 +0100
Subject: [PATCH] Add more logging

---
 src/Interpreters/Cache/LRUFileCachePriority.cpp  | 1 +
 src/Interpreters/Cache/LRUFileCachePriority.h    | 2 +-
 src/Interpreters/Cache/SLRUFileCachePriority.cpp | 9 +++++++++
 3 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/Interpreters/Cache/LRUFileCachePriority.cpp b/src/Interpreters/Cache/LRUFileCachePriority.cpp
index 04622d54a17..ca2127d1c8c 100644
--- a/src/Interpreters/Cache/LRUFileCachePriority.cpp
+++ b/src/Interpreters/Cache/LRUFileCachePriority.cpp
@@ -37,6 +37,7 @@ LRUFileCachePriority::LRUFileCachePriority(
     const std::string & description_)
     : IFileCachePriority(max_size_, max_elements_)
     , description(description_)
+    , log(getLogger("LRUFileCachePriority{}" + (description.empty() ? "" : "(" + description + ")")))
 {
     if (state_)
         state = state_;
diff --git a/src/Interpreters/Cache/LRUFileCachePriority.h b/src/Interpreters/Cache/LRUFileCachePriority.h
index 1f80cfac170..3dea459e271 100644
--- a/src/Interpreters/Cache/LRUFileCachePriority.h
+++ b/src/Interpreters/Cache/LRUFileCachePriority.h
@@ -86,7 +86,7 @@ private:
 
     LRUQueue queue;
     const std::string description;
-    LoggerPtr log = getLogger("LRUFileCachePriority");
+    LoggerPtr log;
     StatePtr state;
 
     void updateElementsCount(int64_t num);
diff --git a/src/Interpreters/Cache/SLRUFileCachePriority.cpp b/src/Interpreters/Cache/SLRUFileCachePriority.cpp
index 07d04ee7876..e59a2fcd68f 100644
--- a/src/Interpreters/Cache/SLRUFileCachePriority.cpp
+++ b/src/Interpreters/Cache/SLRUFileCachePriority.cpp
@@ -215,7 +215,16 @@ bool SLRUFileCachePriority::collectCandidatesForEviction(
 
         hold_space = std::make_shared<HoldSpace>(
             hold_size, hold_elements, QueueEntryType::SLRU_Probationary, probationary_queue, lock);
+
+        LOG_TEST(log, "Eviction candidates: {}, hold space: {} in size and {} in elements. {}",
+                 res.size(), hold_size, hold_elements, getStateInfoForLog(lock));
     }
+    else
+    {
+        LOG_TEST(log, "Eviction candidates: {}, hold space: none. {}",
+                 res.size(), getStateInfoForLog(lock));
+    }
+
 
     auto downgrade_func = [=, this]
         (const CachePriorityGuard::Lock & lk)