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bytedance / terarkdb

A RocksDB compatible KV storage engine with better performance
Apache License 2.0
2.05k stars 202 forks source link

use_hugepage_resize_no_init warnings in db_bench #236

Open dennhuan opened 2 years ago

dennhuan commented 2 years ago

after build the software, did a db_bench run, it has a lot of WARNs:

WARN: void terark::use_hugepage_resize_no_init(terark::valvec*, size_t) [with T = unsigned char; size_t = long unsigned int]: madvise(MADV_HUGEPAGE, size=2551808[0x26F000]) = Invalid argument

my system is CentOS 7.7, with terarkdb dev1.4

yapple commented 2 years ago

use_hugepage_resize_no_init just used in terark_zip table, do you want to use it ? or close it through cmake -DWITH_TERARK_ZIP=OFF

Eshcar commented 2 years ago

Thank you for answering @yapple before seeing your answer we switched to Ubuntu However now after loading about 1.2 TB of data we get another error /home/terarkdb/third-party/terark-zip/src/terark/util/mmap.cpp:146: void* terark::mmap_load(const char*, size_t*, bool, bool): errno=12 : mmap(fname=/media/terarkdb/DB_0//Terark-nnzO0j.zbs, READ SHARED, size=65589184) = Cannot allocate memory which is also due to terark_zip what is terark_zip used for? what is the implication of closing this option on performance? we are measuring performance of sequential load, overwrite, read-only, and mixed workload.