Problem running memcached on AMD64 and CentOS 3.6
Brad Fitzpatrick
brad at danga.com
Mon Dec 26 23:36:19 UTC 2005
You ran it with -d, so it daemonized. It looks like it's running fine.
On Mon, 26 Dec 2005, Jonathan Chong wrote:
> Hi Brad
>
> I've been working on this all weekend, and still can't see where the
> problem is. I've followed some advice from the libevent list, but that
> hasn't resolved the issue.
>
> I've uninstalled the rpms, and reinstalled libevent and memcached from source.
>
> This is the strace when I try to run memcached, the error message is
> different this time, but memcached is not running.
>
> execve("/usr/local/bin/memcached", ["/usr/local/bin/memcached", "-d",
> "-m", "512", "-p", "11211", "-u", "root"], [/* 25 vars */]) = 0
> uname({sys="Linux", node="vps.arsenal-mania.com", ...}) = 0
> brk(0) = 0x509000
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
> 0) = 0x2aaaaaac0000
> open("/etc/ld.so.preload", O_RDONLY) = -1 ENOENT (No such file or directory)
> open("/etc/ld.so.cache", O_RDONLY) = 3
> fstat(3, {st_mode=S_IFREG|0644, st_size=89932, ...}) = 0
> mmap(NULL, 89932, PROT_READ, MAP_PRIVATE, 3, 0) = 0x2aaaaaac1000
> close(3) = 0
> open("/usr/local/lib/libevent-1.1a.so.1", O_RDONLY) = 3
> read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0,\0\0\0"..., 640) = 640
> fstat(3, {st_mode=S_IFREG|0755, st_size=87309, ...}) = 0
> mmap(NULL, 1083608, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x2aaaaabc1000
> mprotect(0x2aaaaabca000, 1046744, PROT_NONE) = 0
> mmap(0x2aaaaacc9000, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x8000) = 0x2aaaaacc9000
> close(3) = 0
> open("/lib64/tls/libc.so.6", O_RDONLY) = 3
> read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\200\322"..., 640) = 640
> fstat(3, {st_mode=S_IFREG|0755, st_size=1669760, ...}) = 0
> mmap(NULL, 2376104, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x2aaaaacca000
> mprotect(0x2aaaaae06000, 1081768, PROT_NONE) = 0
> mmap(0x2aaaaaf05000, 20480, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 3, 0x13b000) = 0x2aaaaaf05000
> mmap(0x2aaaaaf0a000, 16808, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x2aaaaaf0a000
> close(3) = 0
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
> 0) = 0x2aaaaaf0f000
> arch_prctl(ARCH_SET_FS, 0x2aaaaaf0f720) = 0
> munmap(0x2aaaaaac1000, 89932) = 0
> getrlimit(RLIMIT_NOFILE, {rlim_cur=1024, rlim_max=1024}) = 0
> setrlimit(RLIMIT_NOFILE, {rlim_cur=1024, rlim_max=1024}) = 0
> socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 3
> fcntl(3, F_GETFL) = 0x2 (flags O_RDWR)
> fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
> setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [30064771073], 4) = 0
> setsockopt(3, SOL_SOCKET, SO_KEEPALIVE, [30064771073], 4) = 0
> setsockopt(3, SOL_SOCKET, SO_LINGER, {onoff=0, linger=0}, 8) = 0
> bind(3, {sa_family=AF_INET, sin_port=htons(11211),
> sin_addr=inet_addr("0.0.0.0")}, 16) = 0
> listen(3, 1024) = 0
> getuid() = 0
> brk(0) = 0x509000
> brk(0x52a000) = 0x52a000
> brk(0) = 0x52a000
> socket(PF_FILE, SOCK_STREAM, 0) = 4
> connect(4, {sa_family=AF_FILE, path="/var/run/.nscd_socket"}, 110) =
> -1 ENOENT (No such file or directory)
> close(4) = 0
> open("/etc/nsswitch.conf", O_RDONLY) = 4
> fstat(4, {st_mode=S_IFREG|0644, st_size=1686, ...}) = 0
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
> 0) = 0x2aaaaaac1000
> read(4, "#\n# /etc/nsswitch.conf\n#\n# An ex"..., 4096) = 1686
> read(4, "", 4096) = 0
> close(4) = 0
> munmap(0x2aaaaaac1000, 4096) = 0
> open("/etc/ld.so.cache", O_RDONLY) = 4
> fstat(4, {st_mode=S_IFREG|0644, st_size=89932, ...}) = 0
> mmap(NULL, 89932, PROT_READ, MAP_PRIVATE, 4, 0) = 0x2aaaaaac1000
> close(4) = 0
> open("/lib64/libnss_files.so.2", O_RDONLY) = 4
> read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\200%\0\0"..., 640) = 640
> fstat(4, {st_mode=S_IFREG|0755, st_size=59376, ...}) = 0
> mmap(NULL, 1096328, PROT_READ|PROT_EXEC, MAP_PRIVATE, 4, 0) = 0x2aaaaaf10000
> mprotect(0x2aaaaaf1c000, 1047176, PROT_NONE) = 0
> mmap(0x2aaaab01b000, 4096, PROT_READ|PROT_WRITE,
> MAP_PRIVATE|MAP_FIXED, 4, 0xb000) = 0x2aaaab01b000
> close(4) = 0
> munmap(0x2aaaaaac1000, 89932) = 0
> open("/etc/passwd", O_RDONLY) = 4
> fcntl(4, F_GETFD) = 0
> fcntl(4, F_SETFD, FD_CLOEXEC) = 0
> fstat(4, {st_mode=S_IFREG|0644, st_size=2118, ...}) = 0
> mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
> 0) = 0x2aaaaaac1000
> read(4, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 2118
> close(4) = 0
> munmap(0x2aaaaaac1000, 4096) = 0
> setgid(0) = 0
> setuid(0) = 0
> clone(child_stack=0,
> flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD,
> child_tidptr=0x2aaaaaf0f7b0) = 10940
> exit_group(0) = ?
>
> I'd appreciate it if you can shed any light on this.
>
> Thanks.
>
>
> On 26/12/05, Brad Fitzpatrick <brad at danga.com> wrote:
> > Exact same thing:
> >
> > epoll_ctl_old(0x4, 0x1, 0x3, 0x7fffff8970a0) = -1 ENOSYS (Function not implemented)
> >
> > My guess is your libevent is using the old 64-bit epoll ABI and CentOS
> > phased that out? You probably have to rebuild libevent to use the newer
> > epoll system calls, but I know nothing about that.
> >
> > - Brad
> >
> >
> > On Mon, 26 Dec 2005, Jonathan Chong wrote:
> >
> > > If it helps, this is the strace after the changes:
> > >
> > > execve("/usr/bin/memcached", ["memcached", "-u", "nobody", "-m",
> > > "128", "-l", "127.0.0.1", "-p", "11211"], [/* 24 vars */]) = 0
> > > uname({sys="Linux", node="vps.arsenal-mania.com", ...}) = 0
> > > brk(0) = 0x508000
> > > mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
> > > 0) = 0x2aaaaaac0000
> > > open("/etc/ld.so.preload", O_RDONLY) = -1 ENOENT (No such file or directory)
> > > open("/etc/ld.so.cache", O_RDONLY) = 3
> > > fstat(3, {st_mode=S_IFREG|0644, st_size=89977, ...}) = 0
> > > mmap(NULL, 89977, PROT_READ, MAP_PRIVATE, 3, 0) = 0x2aaaaaac1000
> > > close(3) = 0
> > > open("/usr/lib64/libevent.so.0", O_RDONLY) = 3
> > > read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\300)\0\0"..., 640) = 640
> > > fstat(3, {st_mode=S_IFREG|0755, st_size=31872, ...}) = 0
> > > mmap(NULL, 1079224, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x2aaaaabc1000
> > > mprotect(0x2aaaaabc9000, 1046456, PROT_NONE) = 0
> > > mmap(0x2aaaaacc8000, 4096, PROT_READ|PROT_WRITE,
> > > MAP_PRIVATE|MAP_FIXED, 3, 0x7000) = 0x2aaaaacc8000
> > > close(3) = 0
> > > open("/lib64/tls/libc.so.6", O_RDONLY) = 3
> > > read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\200\322"..., 640) = 640
> > > fstat(3, {st_mode=S_IFREG|0755, st_size=1669760, ...}) = 0
> > > mmap(NULL, 2376104, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x2aaaaacc9000
> > > mprotect(0x2aaaaae05000, 1081768, PROT_NONE) = 0
> > > mmap(0x2aaaaaf04000, 20480, PROT_READ|PROT_WRITE,
> > > MAP_PRIVATE|MAP_FIXED, 3, 0x13b000) = 0x2aaaaaf04000
> > > mmap(0x2aaaaaf09000, 16808, PROT_READ|PROT_WRITE,
> > > MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x2aaaaaf09000
> > > close(3) = 0
> > > mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
> > > 0) = 0x2aaaaaf0e000
> > > arch_prctl(ARCH_SET_FS, 0x2aaaaaf0e720) = 0
> > > munmap(0x2aaaaaac1000, 89977) = 0
> > > getrlimit(RLIMIT_NOFILE, {rlim_cur=1024, rlim_max=1024}) = 0
> > > setrlimit(RLIMIT_NOFILE, {rlim_cur=1024, rlim_max=1024}) = 0
> > > socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 3
> > > fcntl(3, F_GETFL) = 0x2 (flags O_RDWR)
> > > fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
> > > setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [30064771073], 4) = 0
> > > setsockopt(3, SOL_SOCKET, SO_KEEPALIVE, [30064771073], 4) = 0
> > > setsockopt(3, SOL_SOCKET, SO_LINGER, {onoff=0, linger=0}, 8) = 0
> > > bind(3, {sa_family=AF_INET, sin_port=htons(11211),
> > > sin_addr=inet_addr("127.0.0.1")}, 16) = 0
> > > listen(3, 1024) = 0
> > > getuid() = 0
> > > brk(0) = 0x508000
> > > brk(0x529000) = 0x529000
> > > brk(0) = 0x529000
> > > socket(PF_FILE, SOCK_STREAM, 0) = 4
> > > connect(4, {sa_family=AF_FILE, path="/var/run/.nscd_socket"}, 110) =
> > > -1 ENOENT (No such file or directory)
> > > close(4) = 0
> > > open("/etc/nsswitch.conf", O_RDONLY) = 4
> > > fstat(4, {st_mode=S_IFREG|0644, st_size=1686, ...}) = 0
> > > mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
> > > 0) = 0x2aaaaaac1000
> > > read(4, "#\n# /etc/nsswitch.conf\n#\n# An ex"..., 4096) = 1686
> > > read(4, "", 4096) = 0
> > > close(4) = 0
> > > munmap(0x2aaaaaac1000, 4096) = 0
> > > open("/etc/ld.so.cache", O_RDONLY) = 4
> > > fstat(4, {st_mode=S_IFREG|0644, st_size=89977, ...}) = 0
> > > mmap(NULL, 89977, PROT_READ, MAP_PRIVATE, 4, 0) = 0x2aaaaaac1000
> > > close(4) = 0
> > > open("/lib64/libnss_files.so.2", O_RDONLY) = 4
> > > read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\200%\0\0"..., 640) = 640
> > > fstat(4, {st_mode=S_IFREG|0755, st_size=59376, ...}) = 0
> > > mmap(NULL, 1096328, PROT_READ|PROT_EXEC, MAP_PRIVATE, 4, 0) = 0x2aaaaaf0f000
> > > mprotect(0x2aaaaaf1b000, 1047176, PROT_NONE) = 0
> > > mmap(0x2aaaab01a000, 4096, PROT_READ|PROT_WRITE,
> > > MAP_PRIVATE|MAP_FIXED, 4, 0xb000) = 0x2aaaab01a000
> > > close(4) = 0
> > > munmap(0x2aaaaaac1000, 89977) = 0
> > > open("/etc/passwd", O_RDONLY) = 4
> > > fcntl(4, F_GETFD) = 0
> > > fcntl(4, F_SETFD, FD_CLOEXEC) = 0
> > > fstat(4, {st_mode=S_IFREG|0644, st_size=2118, ...}) = 0
> > > mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
> > > 0) = 0x2aaaaaac1000
> > > read(4, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 2118
> > > close(4) = 0
> > > munmap(0x2aaaaaac1000, 4096) = 0
> > > setgid(99) = 0
> > > setuid(99) = 0
> > > getrlimit(RLIMIT_NOFILE, {rlim_cur=1024, rlim_max=1024}) = 0
> > > epoll_create(1024) = 4
> > > fcntl(4, F_SETFD, FD_CLOEXEC) = 0
> > > socketpair(PF_FILE, SOCK_STREAM, 0, [5, 6]) = 0
> > > fcntl(5, F_SETFD, FD_CLOEXEC) = 0
> > > fcntl(6, F_SETFD, FD_CLOEXEC) = 0
> > > mmap(NULL, 8392704, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS,
> > > -1, 0) = 0x2aaaab01b000
> > > rt_sigaction(SIGPIPE, {SIG_IGN}, NULL, 8) = 0
> > > epoll_ctl_old(0x4, 0x1, 0x3, 0x7fffff8970a0) = -1 ENOSYS (Function not
> > > implemented)
> > > write(2, "failed to create listening conne"..., 37failed to create
> > > listening connection) = 37
> > > exit_group(1) = ?
> > >
> > >
> > > --
> > > Jonathan Chong
> > >
> > > http://www.arsenal-now.com/
> > > http://www.arsenal-mania.com/
> > > http://www.ashburrn.com/
> > > http://www.jonathan-chong.com/
> > >
> > >
> >
>
>
> --
> Jonathan Chong
>
> http://www.arsenal-now.com/
> http://www.arsenal-mania.com/
> http://www.ashburrn.com/
> http://www.jonathan-chong.com/
>
>
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