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
5 years ago · 16fa6fd2a6
parent 048472f620
commit 16fa6fd2a6
1 changed files with 0 additions and 1 deletions
--- 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