RocksDB中sst_dump的编译使用
编译
有可能要先编译rocksdb
✘ ⚡ 05/23|19:48:09 rocksdb 6.29.fb ● make sst_dump
$DEBUG_LEVEL is 1
Makefile:170: Warning: Compiling in debug mode. Don't use the resulting binary in production
CC tools/sst_dump.o
CC tools/io_tracer_parser_tool.o
CC tools/ldb_cmd.o
CC tools/ldb_tool.o
CC tools/sst_dump_tool.o
CC utilities/blob_db/blob_dump_tool.o
AR librocksdb_tools_debug.a
/usr/bin/ar: creating librocksdb_tools_debug.a
CCLD sst_dump
cmake编译会在 tool 目录下生成，直接 make sst_dump 则是生成在 rocksdb 根目录
使用
⚡ 05/24|10:13:22 rocksdb 6.29.fb ./sst_dump --file=/tmp/rocksdb_tmp --command=raw
options.env is 0x559da26cea00
Process /tmp/rocksdb_tmp/000013.sst
Sst file format: block-based
raw dump written to file /tmp/rocksdb_tmp/000013_dump.txt
Process /tmp/rocksdb_tmp/000007.sst
Sst file format: block-based
raw dump written to file /tmp/rocksdb_tmp/000007_dump.txt
Process /tmp/rocksdb_tmp/000019.sst
Sst file format: block-based
raw dump written to file /tmp/rocksdb_tmp/000019_dump.txt
Process /tmp/rocksdb_tmp/000004.sst
Sst file format: block-based
raw dump written to file /tmp/rocksdb_tmp/000004_dump.txt
⚡ 05/24|10:49:58 rocksdb 6.29.fb cat /tmp/rocksdb_tmp/000019_dump.txt
Footer Details:
--------------------------------------
metaindex handle: E40620
index handle: 1E0F
table_magic_number: 9863518390377041911
format version: 5
Metaindex Details:
--------------------------------------
Properties block handle: 32AD06
Table Properties:
--------------------------------------
# data blocks: 1
# entries: 1
# deletions: 0
# merge operands: 0
# range deletions: 0
raw key size: 11
raw average key size: 11.000000
raw value size: 3
raw average value size: 3.000000
data block size: 30
index block size (user-key? 1, delta-value? 1): 20
filter block size: 0
# entries for filter: 0
(estimated) table size: 50
filter policy name: N/A
prefix extractor name: nullptr
column family ID: 0
column family name: default
comparator name: leveldb.BytewiseComparator
merge operator name: nullptr
property collectors names: []
SST file compression algo: Snappy
SST file compression options: window_bits=-14; level=32767; strategy=0; max_dict_bytes=0; zstd_max_train_bytes=0; enabled=0; max_dict_buffer_bytes=0;
creation time: 1681356505
time stamp of earliest key: 0
file creation time: 0
slow compression estimated data size: 0
fast compression estimated data size: 0
DB identity: 86751c5f-624e-4582-a4aa-a7078979ab79
DB session identity: ZRB0TF2BT6GWRTCMNZD4
DB host id: YF-72166391D1
original file number: 19
unique ID: 80345056726F72BF-D677A376A5E0D45C-A2CFA81888233438
Index Details:
--------------------------------------
Block key hex dump: Data block handle
Block key ascii
HEX 666F6F: 0019
ASCII f o o
------
Data Block # 1 @ 0019
--------------------------------------
HEX 666F6F: 626172
ASCII f o o : b a r
------
Data Block Summary:
--------------------------------------
# data blocks: 1
min data block size: 25
max data block size: 25
avg data block size: 25.000000
参考链接
ARST打卡第212周[212/521]