HYPERCLIENT_UNKNOWNATTR (8520) status issue

[agiz]

Hello.

I am trying to put together a simple demo application using hyperdex C api. As a guidance I am using code from python hyperclient. You can see my application at https://github.com/agiz/hyperdex-c-test/blob/master/test_hyperdex.c. What it does is initialize a hyperclient instance and tries to create attributes of an object.

Before running this applications I followed instructions on how to create space described in http://hyperdex.org/doc/tutorial/. I do not know if that is important or not but when creating a space using hyperdex-coordinator-control --host 127.0.0.1 --port 6970 add-space << EOF and after typing EOF the program does not exits and just stalls. After an hour or two I have interrupted this program and received following output:

^CTraceback (most recent call last):
  File "/usr/lib64/python2.6/runpy.py", line 122, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/usr/lib64/python2.6/runpy.py", line 34, in _run_code
    exec code in run_globals
  File "/usr/lib/python2.6/site-packages/hypercoordinator/client.py", line 163, in <module>
    sys.exit(main(sys.argv[1:]))
  File "/usr/lib/python2.6/site-packages/hypercoordinator/client.py", line 158, in main
    return args.func(args)
  File "/usr/lib/python2.6/site-packages/hypercoordinator/client.py", line 83, in add_space
    return send_msg(args.host, args.port, 'add-space', data)
  File "/usr/lib/python2.6/site-packages/hypercoordinator/client.py", line 46, in send_msg
    d = s.recv(4096)
KeyboardInterrupt

I do however think that space does get created nonetheless.
This is reported by hyperdex-coordinator when creating the space:

INFO:root:Coordinator started
INFO:root:new host uses ID Unidentified(127.0.0.1, 35361)
INFO:root:Unidentified(127.0.0.1, 35361) identified by Instance(addr='127.0.0.2', inport=43296, inver=1, outport=35622, outver=1)
DEBUG:root:Instance(addr='127.0.0.2', inport=43296, inver=1, outport=35622, outver=1) acked config 0
INFO:root:created new space "phonebook"
DEBUG:root:Instance(addr='127.0.0.2', inport=43296, inver=1, outport=35622, outver=1) acked config 1

When I run my test application, test_hyperdex , status reports 8520 -- HYPERCLIENT_UNKNOWNATTR.

This is reported by hyperdex-coordinator when I run my program.

INFO:root:new host uses ID Unidentified(127.0.0.1, 35467)
INFO:root:Unidentified(127.0.0.1, 35467) identified by Client(127.0.0.1, 35467)

I am using CentOS 6.2, kernel 2.6.32-220.13.1.el6.x86_64. I have built libe, libpo6 and HyperDex using github sources with gcc version 4.4.6 20110731 (Red Hat 4.4.6-3) (GCC). Before running autoreconf -i I had to set export LC_ALL=C and change AC_PREREQ([2.66]) to AC_PREREQ([2.63]). When running autoreconf -i in HyperDex for the first time I received:

configure.ac:27: error: possibly undefined macro: AC_PROG_JAR
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
configure.ac:28: error: possibly undefined macro: AC_PROG_JAVAC
configure.ac:29: error: possibly undefined macro: AC_JNI_INCLUDE_DIR
autoreconf: /usr/bin/autoconf failed with exit status: 1

but running it again reported no errors. I hope these errors are meaningless since I did not use any java bindings.

If there is anything more you need to replicate/solve this issue please let me know.

Regards, Ziga

[agiz]

It was my fault. I did not allocate buffers for any of those attribute values. I am able to successfully insert object in hyperdex now.