redis-rdb-tools安装以及bigkeys抓取

1.redis-rdb-tools安装

1.1 更新python-lzf依赖包

pip install rdbtools python-lzf

1.2 安装redis-rdb-tools

git clone https://github.com/sripathikrishnan/redis-rdb-tools
cd redis-rdb-tools
python3 setup.py install

注意：rdb使用依赖于python3,所以直接需要将python的软链接由python2转成python3

安装完毕之后，先查看下是否能够正常使用

1.3 源码zip包安装

wget https://github.com/sripathikrishnan/redis-rdb-tools/archive/master.zip
unzip master.zip
cd redis-rdb-tools-master/
python3 setup.py install 
rm -f  /usr/bin/python
ln -s /usr/bin/python3 /usr/bin/python

2.命令行用法示例

2.1 rdb 使用方法

[root@redis_zxb1 bin]# rdb --help
usage: usage: rdb [options] /path/to/dump.rdb

Example : rdb --command json -k "user.*" /var/redis/6379/dump.rdb

positional arguments:
  dump_file             RDB Dump file to process

optional arguments:
  -h, --help            show this help message and exit
  -c CMD, --command CMD
                        Command to execute. Valid commands are json, diff,
                        justkeys, justkeyvals, memory and protocol
  -f FILE, --file FILE  Output file
  -n DBS, --db DBS      Database Number. Multiple databases can be provided.
                        If not specified, all databases will be included.
  -k KEYS, --key KEYS   Keys to export. This can be a regular expression
  -o NOT_KEYS, --not-key NOT_KEYS
                        Keys Not to export. This can be a regular expression
  -t TYPES, --type TYPES
                        Data types to include. Possible values are string,
                        hash, set, sortedset, list. Multiple typees can be
                        provided. If not specified, all data types will be
                        returned
  -b BYTES, --bytes BYTES
                        Limit memory output to keys greater to or equal to
                        this value (in bytes)
  -l LARGEST, --largest LARGEST
                        Limit memory output to only the top N keys (by size)
  -e {raw,print,utf8,base64}, --escape {raw,print,utf8,base64}
                        Escape strings to encoding: raw (default), print,
                        utf8, or base64.
  -x, --no-expire       With protocol command, remove expiry from all keys
  -a N, --amend-expire N
                        With protocol command, add N seconds to key expiry
                        time

2.2  redis-memory-for-key 使用方法，主要用于单个keys的内存消耗

[root@redis_zxb1 bin]# redis-memory-for-key --help
Usage: redis-memory-for-key [options] redis-key
Examples :
redis-memory-for-key user:13423
redis-memory-for-key -s localhost -p 6379 user:13423


Options:
  -h, --help            show this help message and exit
  -s HOST, --server=HOST
                        Redis Server hostname. Defaults to 127.0.0.1
  -p PORT, --port=PORT  Redis Server port. Defaults to 6379
  -a PASSWORD, --password=PASSWORD
                        Password to use when connecting to the server
  -d DB, --db=DB        Database number, defaults to 0

2.3 redis-profiler的使用方法

[root@redis_zxb1 bin]# redis-profiler --help
Usage: redis-profiler [options] /path/to/dump.rdb

Example 1 : redis-profiler -k "user.*" -k "friends.*" -f memoryreport.html /var/redis/6379/dump.rdb
Example 2 : redis-profiler /var/redis/6379/dump.rdb

Options:
  -h, --help            show this help message and exit
  -f FILE, --file=FILE  Output file
  -k KEYS, --key=KEYS   Keys that should be grouped together. Multiple regexes
                        can be provided

3.参考：

Redis RDB 分析工具 rdbtools 说明 - jyzhou - 博客园