qihoo360/kmemcache

linux kernel memcache server

kmemcache's Issues

can't test kmemcache

[root@localhost kmemcache]# ./test/testapp
1..41
ok 1 - strtol
ok 2 - strtoll
ok 3 - strtoul
ok 4 - strtoull
insmod: can't read './kmod/kmemcache': No such file or directory
testapp: util.c:53: insert_kmod: Assertion stat == 0' failed. testapp: testapp.c:286: start_server: Assertionstat == 0' failed.
Aborted

是不是不支持内核这个版本

kmemcache无响应

准备测试一下插入1K万数据的性能，不知怎么搞的，请求服务端都没有回应了，好像被阻塞了。

INFO: task kmcworker2:6286 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kmcworker2    D 0000000000000000     0  6286      2 0x00000000
 ffff8800acec3b50 0000000000000046 ffff8800acec3ab0 ffffffff814ec71b
 ffff8800acec3ae0 ffffffff81419fde ffff8801fdd05c00 0000000000000026
 ffff88001f9e45f8 ffff8800acec3fd8 000000000000fb88 ffff88001f9e45f8
Call Trace:
 [<ffffffff814ec71b>] ? _spin_unlock_bh+0x1b/0x20
 [<ffffffff81419fde>] ? release_sock+0xce/0xe0
 [<ffffffff814eaac5>] schedule_timeout+0x215/0x2e0
 [<ffffffff81416b03>] ? sock_sendmsg+0x123/0x150
 [<ffffffff814ea743>] wait_for_common+0x123/0x180
 [<ffffffff8105fa40>] ? default_wake_function+0x0/0x20
 [<ffffffff814ea85d>] wait_for_completion+0x1d/0x20
 [<ffffffff8108bc53>] __cancel_work_timer+0x1b3/0x1e0
 [<ffffffff8108b5a0>] ? wq_barrier_func+0x0/0x20
 [<ffffffff8108bcb0>] cancel_work_sync+0x10/0x20
 [<ffffffffa056bf6d>] update_event+0xad/0xe0 [kmemcache]
 [<ffffffffa0573043>] mc_worker_machine+0xc3/0xea0 [kmemcache]
 [<ffffffffa056adf0>] ? mc_conn_work+0x0/0x40 [kmemcache]
 [<ffffffffa056ae10>] mc_conn_work+0x20/0x40 [kmemcache]
 [<ffffffff8108b120>] worker_thread+0x170/0x2a0
 [<ffffffff81090990>] ? autoremove_wake_function+0x0/0x40
 [<ffffffff8108afb0>] ? worker_thread+0x0/0x2a0
 [<ffffffff81090626>] kthread+0x96/0xa0
 [<ffffffff8100c0ca>] child_rip+0xa/0x20
 [<ffffffff81090590>] ? kthread+0x0/0xa0
 [<ffffffff8100c0c0>] ? child_rip+0x0/0x20
INFO: task kmcworker3:6287 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kmcworker3    D 0000000000000001     0  6287      2 0x00000000
 ffff88001f973b50 0000000000000046 ffff88001f973ab0 ffffffff814ec71b
 ffff88001f973ae0 ffffffff81419fde ffff8801b911d800 0000000000000026
 ffff88001f9e5ab8 ffff88001f973fd8 000000000000fb88 ffff88001f9e5ab8
Call Trace:
 [<ffffffff814ec71b>] ? _spin_unlock_bh+0x1b/0x20
 [<ffffffff81419fde>] ? release_sock+0xce/0xe0
 [<ffffffff814eaac5>] schedule_timeout+0x215/0x2e0
 [<ffffffff81416b03>] ? sock_sendmsg+0x123/0x150
 [<ffffffff814ea743>] wait_for_common+0x123/0x180
 [<ffffffff8105fa40>] ? default_wake_function+0x0/0x20
 [<ffffffff814ea85d>] wait_for_completion+0x1d/0x20
 [<ffffffff8108bc53>] __cancel_work_timer+0x1b3/0x1e0
 [<ffffffff8108b5a0>] ? wq_barrier_func+0x0/0x20
 [<ffffffff8108bcb0>] cancel_work_sync+0x10/0x20
 [<ffffffffa056bf6d>] update_event+0xad/0xe0 [kmemcache]
 [<ffffffffa0573043>] mc_worker_machine+0xc3/0xea0 [kmemcache]
 [<ffffffffa056adf0>] ? mc_conn_work+0x0/0x40 [kmemcache]
 [<ffffffffa056ae10>] mc_conn_work+0x20/0x40 [kmemcache]
 [<ffffffff8108b120>] worker_thread+0x170/0x2a0
 [<ffffffff81090990>] ? autoremove_wake_function+0x0/0x40
 [<ffffffff8108afb0>] ? worker_thread+0x0/0x2a0
 [<ffffffff81090626>] kthread+0x96/0xa0
 [<ffffffff8100c0ca>] child_rip+0xa/0x20
 [<ffffffff81090590>] ? kthread+0x0/0xa0
 [<ffffffff8100c0c0>] ? child_rip+0x0/0x20

insmod有问题

make出现一些警告，忽略之，正常install，
insmod kmemcache.ko，报错，查看dmesg，报
kmemcache: Unknown symbol simple_strtoll

下面是完整的make信息

make -C user PWD=/home/clang/kmemcache/user all
make[1]: Entering directory `/home/clang/kmemcache/user'
gcc -g -O2 -Wall -I/home/clang/kmemcache/user/../include   -c -o umemcached.o umemcached.c
umemcached.c: In function ‘main’:
umemcached.c:469: warning: unused variable ‘pw’
gcc -g -O2 -Wall -I/home/clang/kmemcache/user/../include   -c -o settings.o settings.c
gcc -g -O2 -Wall -I/home/clang/kmemcache/user/../include   -c -o cache_bh.o cache_bh.c
gcc -g -O2 -Wall -I/home/clang/kmemcache/user/../include   -c -o daemon.o daemon.c
gcc  -o umemcached umemcached.o settings.o cache_bh.o daemon.o
make[1]: Leaving directory `/home/clang/kmemcache/user'
make -C kmod KERNELDIR=/lib/modules/2.6.32-279.19.1.el6.x86_64/build PWD=/home/clang/kmemcache/kmod all
make[1]: Entering directory `/home/clang/kmemcache/kmod'
make -C /lib/modules/2.6.32-279.19.1.el6.x86_64/build M=/home/clang/kmemcache/kmod modules
make[2]: Entering directory `/usr/src/kernels/2.6.32-358.6.1.el6.x86_64'
  CC [M]  /home/clang/kmemcache/kmod/kmodhelper.o
  CC [M]  /home/clang/kmemcache/kmod/mc_strops.o
  CC [M]  /home/clang/kmemcache/kmod/mc_buffer.o
  CC [M]  /home/clang/kmemcache/kmod/mc_hash.o
  CC [M]  /home/clang/kmemcache/kmod/mc_slabs.o
  CC [M]  /home/clang/kmemcache/kmod/mc_items.o
  CC [M]  /home/clang/kmemcache/kmod/mc_hashtable.o
  CC [M]  /home/clang/kmemcache/kmod/mc_stats.o
  CC [M]  /home/clang/kmemcache/kmod/mc_main.o
  CC [M]  /home/clang/kmemcache/kmod/mc_worker.o
  CC [M]  /home/clang/kmemcache/kmod/mc_messenger.o
  CC [M]  /home/clang/kmemcache/kmod/mc_dispatcher.o
/home/clang/kmemcache/kmod/mc_dispatcher.c: In function ‘server_socket_unix’:
/home/clang/kmemcache/kmod/mc_dispatcher.c:587: warning: value computed is not used
/home/clang/kmemcache/kmod/mc_dispatcher.c:590: warning: value computed is not used
  CC [M]  /home/clang/kmemcache/kmod/mc_proto_bin.o
  CC [M]  /home/clang/kmemcache/kmod/mc_proto_txt.o
  CC [M]  /home/clang/kmemcache/kmod/mc_proto.o
  CC [M]  /home/clang/kmemcache/kmod/mc_connector.o
  CC [M]  /home/clang/kmemcache/kmod/mc_uparam.o
  LD [M]  /home/clang/kmemcache/kmod/kmemcache.o
  Building modules, stage 2.
  MODPOST 2 modules
WARNING: "simple_strtoll" [/home/clang/kmemcache/kmod/kmemcache.ko] undefined!
  CC      /home/clang/kmemcache/kmod/kmemcache.mod.o
  LD [M]  /home/clang/kmemcache/kmod/kmemcache.ko.unsigned
  NO SIGN [M] /home/clang/kmemcache/kmod/kmemcache.ko
  CC      /home/clang/kmemcache/kmod/kmodhelper.mod.o
  LD [M]  /home/clang/kmemcache/kmod/kmodhelper.ko.unsigned
  NO SIGN [M] /home/clang/kmemcache/kmod/kmodhelper.ko
make[2]: Leaving directory `/usr/src/kernels/2.6.32-358.6.1.el6.x86_64'
make[1]: Leaving directory `/home/clang/kmemcache/kmod'