I changed the keybinding to something different and it works. It just won't display the value I did set.

Hi @wbolster, thank you for the work you are doing here. I would like to know if you intend to add this functionality to the roadmap.

MacOS: 11.4 big sur clang: Apple clang version 12.0.5 (clang-1205.0.22.9) python: 3.7.10 leveldb: stable 1.23

(spark_env3) mgong@MGONG spark2es % pip install plyvel
Collecting plyvel
  Using cached plyvel-1.3.0.tar.gz (149 kB)
Building wheels for collected packages: plyvel
  Building wheel for plyvel (setup.py) ... error
  ERROR: Command errored out with exit status 1:
   command: /Users/mgong/Aliyun/spark_env3/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-install-_de5grd_/plyvel/setup.py'"'"'; __file__='"'"'/private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-install-_de5grd_/plyvel/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-wheel-fjma9k4r
       cwd: /private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-install-_de5grd_/plyvel/
  Complete output (18 lines):
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.macosx-11-x86_64-3.7
  creating build/lib.macosx-11-x86_64-3.7/plyvel
  copying plyvel/_version.py -> build/lib.macosx-11-x86_64-3.7/plyvel
  copying plyvel/__init__.py -> build/lib.macosx-11-x86_64-3.7/plyvel
  running build_ext
  building 'plyvel._plyvel' extension
  creating build/temp.macosx-11-x86_64-3.7
  creating build/temp.macosx-11-x86_64-3.7/plyvel
  clang -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -isystem /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers -I/Users/mgong/Aliyun/spark_env3/include -I/usr/local/opt/[email protected]/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c plyvel/_plyvel.cpp -o build/temp.macosx-11-x86_64-3.7/plyvel/_plyvel.o -Wall -g -x c++ -std=c++11 -stdlib=libc++
  plyvel/_plyvel.cpp:632:10: fatal error: 'leveldb/db.h' file not found
  #include "leveldb/db.h"
           ^~~~~~~~~~~~~~
  1 error generated.
  error: command 'clang' failed with exit status 1
  ----------------------------------------
  ERROR: Failed building wheel for plyvel
  Running setup.py clean for plyvel
Failed to build plyvel
Installing collected packages: plyvel
    Running setup.py install for plyvel ... error
    ERROR: Command errored out with exit status 1:
     command: /Users/mgong/Aliyun/spark_env3/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-install-_de5grd_/plyvel/setup.py'"'"'; __file__='"'"'/private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-install-_de5grd_/plyvel/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-record-bopeg5vd/install-record.txt --single-version-externally-managed --compile --install-headers /Users/mgong/Aliyun/spark_env3/include/site/python3.7/plyvel
         cwd: /private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-install-_de5grd_/plyvel/
    Complete output (18 lines):
    running install
    running build
    running build_py
    creating build
    creating build/lib.macosx-11-x86_64-3.7
    creating build/lib.macosx-11-x86_64-3.7/plyvel
    copying plyvel/_version.py -> build/lib.macosx-11-x86_64-3.7/plyvel
    copying plyvel/__init__.py -> build/lib.macosx-11-x86_64-3.7/plyvel
    running build_ext
    building 'plyvel._plyvel' extension
    creating build/temp.macosx-11-x86_64-3.7
    creating build/temp.macosx-11-x86_64-3.7/plyvel
    clang -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -isystem /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers -I/Users/mgong/Aliyun/spark_env3/include -I/usr/local/opt/[email protected]/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c plyvel/_plyvel.cpp -o build/temp.macosx-11-x86_64-3.7/plyvel/_plyvel.o -Wall -g -x c++ -std=c++11 -stdlib=libc++
    plyvel/_plyvel.cpp:632:10: fatal error: 'leveldb/db.h' file not found
    #include "leveldb/db.h"
             ^~~~~~~~~~~~~~
    1 error generated.
    error: command 'clang' failed with exit status 1
    ----------------------------------------
ERROR: Command errored out with exit status 1: /Users/mgong/Aliyun/spark_env3/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-install-_de5grd_/plyvel/setup.py'"'"'; __file__='"'"'/private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-install-_de5grd_/plyvel/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-record-bopeg5vd/install-record.txt --single-version-externally-managed --compile --install-headers /Users/mgong/Aliyun/spark_env3/include/site/python3.7/plyvel Check the logs for full command output.

MacOS: 11.4 big sur clang: Apple clang version 12.0.5 (clang-1205.0.22.9) python: 3.7.10 leveldb: stable 1.23

(spark_env3) mgong@MGONG spark2es % pip install plyvel
Collecting plyvel
  Using cached plyvel-1.3.0.tar.gz (149 kB)
Building wheels for collected packages: plyvel
  Building wheel for plyvel (setup.py) ... error
  ERROR: Command errored out with exit status 1:
   command: /Users/mgong/Aliyun/spark_env3/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-install-_de5grd_/plyvel/setup.py'"'"'; __file__='"'"'/private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-install-_de5grd_/plyvel/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-wheel-fjma9k4r
       cwd: /private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-install-_de5grd_/plyvel/
  Complete output (18 lines):
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.macosx-11-x86_64-3.7
  creating build/lib.macosx-11-x86_64-3.7/plyvel
  copying plyvel/_version.py -> build/lib.macosx-11-x86_64-3.7/plyvel
  copying plyvel/__init__.py -> build/lib.macosx-11-x86_64-3.7/plyvel
  running build_ext
  building 'plyvel._plyvel' extension
  creating build/temp.macosx-11-x86_64-3.7
  creating build/temp.macosx-11-x86_64-3.7/plyvel
  clang -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -isystem /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers -I/Users/mgong/Aliyun/spark_env3/include -I/usr/local/opt/[email protected]/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c plyvel/_plyvel.cpp -o build/temp.macosx-11-x86_64-3.7/plyvel/_plyvel.o -Wall -g -x c++ -std=c++11 -stdlib=libc++
  plyvel/_plyvel.cpp:632:10: fatal error: 'leveldb/db.h' file not found
  #include "leveldb/db.h"
           ^~~~~~~~~~~~~~
  1 error generated.
  error: command 'clang' failed with exit status 1
  ----------------------------------------
  ERROR: Failed building wheel for plyvel
  Running setup.py clean for plyvel
Failed to build plyvel
Installing collected packages: plyvel
    Running setup.py install for plyvel ... error
    ERROR: Command errored out with exit status 1:
     command: /Users/mgong/Aliyun/spark_env3/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-install-_de5grd_/plyvel/setup.py'"'"'; __file__='"'"'/private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-install-_de5grd_/plyvel/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-record-bopeg5vd/install-record.txt --single-version-externally-managed --compile --install-headers /Users/mgong/Aliyun/spark_env3/include/site/python3.7/plyvel
         cwd: /private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-install-_de5grd_/plyvel/
    Complete output (18 lines):
    running install
    running build
    running build_py
    creating build
    creating build/lib.macosx-11-x86_64-3.7
    creating build/lib.macosx-11-x86_64-3.7/plyvel
    copying plyvel/_version.py -> build/lib.macosx-11-x86_64-3.7/plyvel
    copying plyvel/__init__.py -> build/lib.macosx-11-x86_64-3.7/plyvel
    running build_ext
    building 'plyvel._plyvel' extension
    creating build/temp.macosx-11-x86_64-3.7
    creating build/temp.macosx-11-x86_64-3.7/plyvel
    clang -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -isystem /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers -I/Users/mgong/Aliyun/spark_env3/include -I/usr/local/opt/[email protected]/Frameworks/Python.framework/Versions/3.7/include/python3.7m -c plyvel/_plyvel.cpp -o build/temp.macosx-11-x86_64-3.7/plyvel/_plyvel.o -Wall -g -x c++ -std=c++11 -stdlib=libc++
    plyvel/_plyvel.cpp:632:10: fatal error: 'leveldb/db.h' file not found
    #include "leveldb/db.h"
             ^~~~~~~~~~~~~~
    1 error generated.
    error: command 'clang' failed with exit status 1
    ----------------------------------------
ERROR: Command errored out with exit status 1: /Users/mgong/Aliyun/spark_env3/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-install-_de5grd_/plyvel/setup.py'"'"'; __file__='"'"'/private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-install-_de5grd_/plyvel/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/0v/h4__9mvd5xq6hnyzm7tchztw0000gp/T/pip-record-bopeg5vd/install-record.txt --single-version-externally-managed --compile --install-headers /Users/mgong/Aliyun/spark_env3/include/site/python3.7/plyvel Check the logs for full command output.

Unfortunately having the flexibility to change the schema on the fly is a tradeoff with performance. Improving performance is definitely still a worthwhile task, but it would have to be done on the underlying ThriftPy2 library where all the magic happens.

when I try to read from table by table.scan to read about 1,000,000 lines data. it takes a lot of time

I had google it already, but didn't get answer. so I have to ask here

Is there any way to make scan faster? or other way to get data from HBase fastest？

I use HBase because I often add columns for my data structure. I think a Column-oriented DBMS is the most suitable. I will try to use different databases to find the best database.

thanks for your advice.