Shulou(Shulou.com)06/01 Report--

Redis memory Analysis tool redis-rdb-tools installation and deployment

Project address: https://github.com/sripathikrishnan/redis-rdb-tools

Install deployment install Python2.7 download redis-rdb-toolsgit clone https://github.com/sripathikrishnan/redis-rdb-tools.git install redis-rdb-toolspip2.7 install python-lzfcd redis-rdb-toolspython2.7 setup.py install common usage: # output in json format > rdb--command json / var/redis/6379/dump.rdb# export in json format Fuzzy search > rdb-- command justkeyvals-- key "user.*" / var/redis/6379/dump.rdbuser003 fname Ron,sname Bumquist,user001 fname Raoul,sname Duke,user002 fname Gonzo,sname Dr,user_list user003,user002 User001# search determines key information > redis-memory-for-key-s localhost-p 6379-a mypassword person:1Key person:1Bytes 111Type hashEncoding ziplistNumber of Elements 2Length of Largest Element keys rdb file parses and outputs as csv > rdb-c memory / var/redis/6379/dump.rdb-- bytes 128-f memory.csv > cat memory.csvdatabase,type,key,size_in_bytes,encoding,num_elements,len_largest_element0 List,lizards,241,quicklist,5,190,list,user_list,190,quicklist,3,72,hash,baloon,138,ziplist,3,112,list,armadillo,231,quicklist,5,202,hash,aroma,129,ziplist,3,11# outputs the key information of top10 rdb-c memory-- largest=10 / app/redis/data/7000/dump.rdb error report and solution:

If you make the following error in redis-cluster mode, change the address to the address corresponding to the key.

[root@TEST python2.7] # redis-memory-for-key-s 172.16.2.53-p 7000 KEYNAMETESTTraceback (most recent call last): File "/ usr/local/python2.7/bin/redis-memory-for-key", line 11, in load_entry_point ('rdbtools==0.1.12',' console_scripts' 'redis-memory-for-key') () File "/ usr/local/python2.7/lib/python2.7/site-packages/rdbtools-0.1.12-py2.7.egg/rdbtools/cli/redis_memory_for_key.py", line 43, in main db=options.db, password=options.password) File "/ usr/local/python2.7/lib/python2.7/site-packages/rdbtools-0.1.12-py2.7.egg/rdbtools/cli/redis_memory_for_key.py", line 53 In print_memory_for_key raw_dump = redis.execute_command ('dump', key) File "/ usr/local/python2.7/lib/python2.7/site-packages/redis/client.py, line 668, in execute_command return self.parse_response (connection, command_name, * * options) File" / usr/local/python2.7/lib/python2.7/site-packages/redis/client.py ", line 680 In parse_response response = connection.read_response () File "/ usr/local/python2.7/lib/python2.7/site-packages/redis/connection.py", line 629 In read_response raise responseredis.exceptions.ResponseError: MOVED 16278 172.16.0.99 KEYNAMETESTKey KEYNAMETESTBytes 933972.0Type sortedsetEncoding skiplistNumber of Elements 7658Length of Largest Element 7000 [root@TEST python2.7] # redis-memory-for-key-s 172.16.0.99-p 7000 KEYNAMETESTKey KEYNAMETESTBytes 933972.0Type sortedsetEncoding skiplistNumber of Elements 7658Length of Largest Element 8

Note:

1. The parsing of the entire rdb file will lead to a serious occupation of CPU, so use it carefully! 2. It is best to choose the method of single-button query, which does not consume much resources. 3. If you need to parse a rdb file, it is best to use its backup file, or export the file to the local or test machine for parsing

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