From 16fa6fd2a6bd0d22c0d2bc9f0f3bf2a296b3232d Mon Sep 17 00:00:00 2001
From: anand76 <anand76@devvm1373.frc2.facebook.com>
Date: Mon, 2 Dec 2019 14:58:22 -0800
Subject: [PATCH] Remove key length assertion LRUHandle::CalcTotalCharge
 (#6115)

Summary:
Inserting an entry in the block cache with 0 length key is a valid use case. Remove the assertion in ```LRUHandle::CalcTotalCharge```.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6115

Differential Revision: D18769693

Pulled By: anand1976

fbshipit-source-id: 34cc159650300dda6d7273480640478f28392cda
---
 cache/lru_cache.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/cache/lru_cache.h b/cache/lru_cache.h
index 6313c69db..1d9c8935c 100644
--- a/cache/lru_cache.h
+++ b/cache/lru_cache.h
@@ -133,7 +133,6 @@ struct LRUHandle {
   // Caclculate the memory usage by metadata
   inline size_t CalcTotalCharge(
       CacheMetadataChargePolicy metadata_charge_policy) {
-    assert(key_length);
     size_t meta_charge = 0;
     if (metadata_charge_policy == kFullChargeCacheMetadata) {
 #ifdef ROCKSDB_MALLOC_USABLE_SIZE