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There are a few other interesting technologies to use as storage backend which may provide better performance in contrast to BDB:

• Kyoto Cabinet
• Tokyo Cabinet
• LevelDB

Hello,

I am trying to install and run accord in a single machine (Ubuntu 12.04 X86-64 3.2.0-25-generic) by following the information at http://www.osrg.net/accord/

The server is crashing when the benchmark runs. Below i send the steps taken to install, configure and run accord and the error. I also point some steps that are not in the documentation and i think that must be performed.

Am i doing something wrong, or it is a bug in accord?

Kind Regards,

João Paulo

I have performed the following steps:

sudo aptitude install corosync libcorosync-dev libdb4.8-dev

Then configured /etc/corosync/corosync.conf with the information at https://github.com/collie/sheepdog/wiki/Corosync-config and changed only the IP address to 127.0.0.1

git clone git://github.com/collie/accord.git
cd accord
make

corosync -f (This is missing at the documentation)
conductor/conductor -f -m (also tried with the persistent mode)

test/acrdbench localhost 8 100000 8 sync (sync flag is also missing at the documentation)

When i run the benchmark i get the following error at the conductor (server):

root@cloud12:/home/gsd/accord# conductor/conductor -f /home/gsd/dbaccord
*** longjmp causes uninitialized stack frame ***: conductor/conductor terminated
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x37)[0x7ffbe68cb007]
/lib/x86_64-linux-gnu/libc.so.6(+0x108f7d)[0x7ffbe68caf7d]
/lib/x86_64-linux-gnu/libc.so.6(__longjmp_chk+0x33)[0x7ffbe68caee3]
conductor/conductor[0x4095bc]
conductor/conductor[0x40965b]
conductor/conductor[0x403a8b]
conductor/conductor[0x4091b4]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x7e9a)[0x7ffbe7100e9a]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7ffbe68b44bd]
======= Memory map: ========
00400000-0040d000 r-xp 00000000 08:01 8913022 /home/gsd/accord/conductor/conductor
0060c000-0060d000 r--p 0000c000 08:01 8913022 /home/gsd/accord/conductor/conductor
0060d000-0060e000 rw-p 0000d000 08:01 8913022 /home/gsd/accord/conductor/conductor
00834000-0087a000 rw-p 00000000 00:00 0 [heap]
7ffb98000000-7ffb98022000 rw-p 00000000 00:00 0
7ffb98022000-7ffb9c000000 ---p 00000000 00:00 0
7ffb9c0b4000-7ffb9c0c9000 r-xp 00000000 08:01 1048628 /lib/x86_64-linux-gnu/libgcc_s.so.1
7ffb9c0c9000-7ffb9c2c8000 ---p 00015000 08:01 1048628 /lib/x86_64-linux-gnu/libgcc_s.so.1
7ffb9c2c8000-7ffb9c2c9000 r--p 00014000 08:01 1048628 /lib/x86_64-linux-gnu/libgcc_s.so.1
7ffb9c2c9000-7ffb9c2ca000 rw-p 00015000 08:01 1048628 /lib/x86_64-linux-gnu/libgcc_s.so.1
7ffb9c2ca000-7ffb9c30b000 rw-s 00000000 00:12 27194 /run/shm/corosync_zerocopy-4eRPjl (deleted)
7ffb9c30b000-7ffb9c647000 rw-s 00000000 08:01 8913041 /home/gsd/dbaccord/log/__db.005
7ffb9c647000-7ffbdc667000 rw-s 00000000 08:01 8913040 /home/gsd/dbaccord/log/__db.004
7ffbdc667000-7ffbdc6a9000 rw-s 00000000 08:01 8913039 /home/gsd/dbaccord/log/__db.003
7ffbdc6a9000-7ffbdc6aa000 ---p 00000000 00:00 0
7ffbdc6aa000-7ffbdceaa000 rw-p 00000000 00:00 0
7ffbdceaa000-7ffbdceab000 ---p 00000000 00:00 0
7ffbdceab000-7ffbdd6ab000 rw-p 00000000 00:00 0
7ffbdd6ab000-7ffbdd6ac000 ---p 00000000 00:00 0
7ffbdd6ac000-7ffbddeac000 rw-p 00000000 00:00 0
7ffbddeac000-7ffbddead000 ---p 00000000 00:00 0
7ffbddead000-7ffbde6ad000 rw-p 00000000 00:00 0
7ffbde6ad000-7ffbde6ae000 ---p 00000000 00:00 0
7ffbde6ae000-7ffbdeeae000 rw-p 00000000 00:00 0
7ffbdeeae000-7ffbdeeaf000 ---p 00000000 00:00 0
7ffbdeeaf000-7ffbdf6af000 rw-p 00000000 00:00 0
7ffbdf6af000-7ffbdf6b0000 ---p 00000000 00:00 0
7ffbdf6b0000-7ffbdfeb0000 rw-p 00000000 00:00 0
7ffbdfeb0000-7ffbdfeb1000 ---p 00000000 00:00 0
7ffbdfeb1000-7ffbe06b1000 rw-p 00000000 00:00 0
7ffbe06b1000-7ffbe06b2000 ---p 00000000 00:00 0
7ffbe06b2000-7ffbe0eb2000 rw-p 00000000 00:00 0
7ffbe0eb2000-7ffbe0eb3000 ---p 00000000 00:00 0
7ffbe0eb3000-7ffbe16b3000 rw-p 00000000 00:00 0
7ffbe16b3000-7ffbe16b4000 ---p 00000000 00:00 0
7ffbe16b4000-7ffbe1eb4000 rw-p 00000000 00:00 0
7ffbe1eb4000-7ffbe1eb5000 ---p 00000000 00:00 0
7ffbe1eb5000-7ffbe26b5000 rw-p 00000000 00:00 0
7ffbe26b5000-7ffbe26b6000 ---p 00000000 00:00 0
7ffbe26b6000-7ffbe2eb6000 rw-p 00000000 00:00 0
7ffbe2eb6000-7ffbe2eb7000 ---p 00000000 00:00 0
7ffbe2eb7000-7ffbe36b7000 rw-p 00000000 00:00 0
7ffbe36b7000-7ffbe36b8000 ---p 00000000 00:00 0
7ffbe36b8000-7ffbe3eb8000 rw-p 00000000 00:00 0
7ffbe3eb8000-7ffbe3eb9000 ---p 00000000 00:00 0
7ffbe3eb9000-7ffbe46b9000 rw-p 00000000 00:00 0
7ffbe46b9000-7ffbe46ba000 ---p 00000000 00:00 0
7ffbe46ba000-7ffbe4eba000 rw-p 00000000 00:00 0
7ffbe4eba000-7ffbe4ebb000 ---p 00000000 00:00 0
7ffbe4ebb000-7ffbe56bb000 rw-p 00000000 00:00 0
7ffbe56bb000-7ffbe56bc000 ---p 00000000 00:00 0
7ffbe56bc000-7ffbe5ebc000 rw-p 00000000 00:00 0
7ffbe5ebc000-7ffbe5fbc000 rw-s 00000000 00:12 30767 /run/shm/dispatch_buffer-sGpS71 (deleted)
7ffbe5fbc000-7ffbe60bc000 rw-s 00000000 00:12 30767 /run/shm/dispatch_buffer-sGpS71 (deleted)
7ffbe60bc000-7ffbe61bc000 rw-s 00000000 00:12 30766 /run/shm/response_buffer-4dZhKY (deleted)
7ffbe61bc000-7ffbe62bc000 rw-s 00000000 00:12 30765 /run/shm/request_buffer-X3xPmV (deleted)
7ffbe62bc000-7ffbe63bc000 rw-s 00000000 00:12 30759 /run/shm/dispatch_buffer-6kOaCO (deleted)
7ffbe63bc000-7ffbe64bc000 rw-s 00000000 00:12 30759 /run/shm/dispatch_buffer-6kOaCO (deleted)
7ffbe64bc000-7ffbe65bc000 rw-s 00000000 00:12 30758 /run/shm/response_buffer-kerhfL (deleted)
7ffbe65bc000-7ffbe65c1000 r-xp 00000000 08:01 12727653 /usr/lib/libcoroipcc.so.4.0.0
7ffbe65c1000-7ffbe67c0000 ---p 00005000 08:01 12727653 /usr/lib/libcoroipcc.so.4.0.0
7ffbe67c0000-7ffbe67c1000 r--p 00004000 08:01 12727653 /usr/lib/libcoroipcc.so.4.0.0
7ffbe67c1000-7ffbe67c2000 rw-p 00005000 08:01 12727653 /usr/lib/libcoroipcc.so.4.0.0
7ffbe67c2000-7ffbe6975000 r-xp 00000000 08:01 1048594 /lib/x86_64-linux-gnu/libc-2.15.so
7ffbe6975000-7ffbe6b74000 ---p 001b3000 08:01 1048594 /lib/x86_64-linux-gnu/libc-2.15.so
7ffbe6b74000-7ffbe6b78000 r--p 001b2000 08:01 1048594 /lib/x86_64-linux-gnu/libc-2.15.so
7ffbe6b78000-7ffbe6b7a000 rw-p 001b6000 08:01 1048594 /lib/x86_64-linux-gnu/libc-2.15.so
7ffbe6b7a000-7ffbe6b7f000 rw-p 00000000 00:00 0
7ffbe6b7f000-7ffbe6b85000 r-xp 00000000 08:01 12727672 /usr/lib/libcpg.so.4.1.0
7ffbe6b85000-7ffbe6d84000 ---p 00006000 08:01 12727672 /usr/lib/libcpg.so.4.1.0
7ffbe6d84000-7ffbe6d85000 r--p 00005000 08:01 12727672 /usr/lib/libcpg.so.4.1.0
7ffbe6d85000-7ffbe6d86000 rw-p 00006000 08:01 12727672 /usr/lib/libcpg.so.4.1.0
7ffbe6d86000-7ffbe6ef2000 r-xp 00000000 08:01 12714645 /usr/lib/x86_64-linux-gnu/libdb-5.1.so
7ffbe6ef2000-7ffbe70f2000 ---p 0016c000 08:01 12714645 /usr/lib/x86_64-linux-gnu/libdb-5.1.so
7ffbe70f2000-7ffbe70f8000 r--p 0016c000 08:01 12714645 /usr/lib/x86_64-linux-gnu/libdb-5.1.so
7ffbe70f8000-7ffbe70f9000 rw-p 00172000 08:01 12714645 /usr/lib/x86_64-linux-gnu/libdb-5.1.so
7ffbe70f9000-7ffbe7111000 r-xp 00000000 08:01 1048618 /lib/x86_64-linux-gnu/libpthread-2.15.so
7ffbe7111000-7ffbe7310000 ---p 00018000 08:01 1048618 /lib/x86_64-linux-gnu/libpthread-2.15.so
7ffbe7310000-7ffbe7311000 r--p 00017000 08:01 1048618 /lib/x86_64-linux-gnu/libpthread-2.15.so
7ffbe7311000-7ffbe7312000 rw-p 00018000 08:01 1048618 /lib/x86_64-linux-gnu/libpthread-2.15.so
7ffbe7312000-7ffbe7316000 rw-p 00000000 00:00 0
7ffbe7316000-7ffbe7338000 r-xp 00000000 08:01 1048599 /lib/x86_64-linux-gnu/ld-2.15.so
7ffbe735e000-7ffbe736a000 rw-s 00000000 08:01 8913042 /home/gsd/dbaccord/log/__db.006
7ffbe736a000-7ffbe7426000 rw-s 00000000 08:01 8913038 /home/gsd/dbaccord/log/__db.002
7ffbe7426000-7ffbe742c000 rw-s 00000000 08:01 8913037 /home/gsd/dbaccord/log/__db.001
7ffbe742c000-7ffbe752c000 rw-s 00000000 00:12 30757 /run/shm/request_buffer-qVCwSH (deleted)
7ffbe752c000-7ffbe7531000 rw-p 00000000 00:00 0
7ffbe7532000-7ffbe7534000 rw-s 00000000 00:12 30764 /run/shm/control_buffer-ooXuZR (deleted)
7ffbe7534000-7ffbe7536000 rw-s 00000000 00:12 30756 /run/shm/control_buffer-56GTvE (deleted)
7ffbe7536000-7ffbe7538000 rw-p 00000000 00:00 0
7ffbe7538000-7ffbe7539000 rAborted

I would like to point out that identifiers like "__ACCORD_H__" and "__list_add" do not fit to the expected naming conventions of the C/C++ language standard.

Identifiers like "event_handler_t" and "work_func_t" tamper with the POSIX name space.

Would you like to adjust your selection for unique names?