Delay with file operations over samba share

Message

Sheriff Hobbes · #1 Post by **Sheriff Hobbes** » 2019-09-04 16:38

Hello,

recently I'm experiencing a very weird, very annoying problem when I move or copy files from my Samba share to any other location. There's a delay of half a minute before the actual file operation starts. I have no idea what might have triggered this problem, I'm using this installation for years, and I have another system with exactly the same Debian & kernel version which doesn't experience the problem. Here's a trace from moving a little file from the share to the home directory:

Code: Select all

18:12:54 execve("/bin/mv", ["mv", "h.png", "/home/user"], [/* 41 vars */]) = 0
18:12:54 brk(0)                         = 0x1847000
18:12:54 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
18:12:54 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d540c1000
18:12:54 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
18:12:54 open("/opt/thinlinc/lib64/tls/x86_64/libselinux.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 stat("/opt/thinlinc/lib64/tls/x86_64", 0x7ffc339d09f0) = -1 ENOENT (No such file or directory)
18:12:54 open("/opt/thinlinc/lib64/tls/libselinux.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 stat("/opt/thinlinc/lib64/tls", 0x7ffc339d09f0) = -1 ENOENT (No such file or directory)
18:12:54 open("/opt/thinlinc/lib64/x86_64/libselinux.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 stat("/opt/thinlinc/lib64/x86_64", 0x7ffc339d09f0) = -1 ENOENT (No such file or directory)
18:12:54 open("/opt/thinlinc/lib64/libselinux.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 stat("/opt/thinlinc/lib64", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
18:12:54 open("/opt/thinlinc/lib/tls/x86_64/libselinux.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 stat("/opt/thinlinc/lib/tls/x86_64", 0x7ffc339d09f0) = -1 ENOENT (No such file or directory)
18:12:54 open("/opt/thinlinc/lib/tls/libselinux.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 stat("/opt/thinlinc/lib/tls", 0x7ffc339d09f0) = -1 ENOENT (No such file or directory)
18:12:54 open("/opt/thinlinc/lib/x86_64/libselinux.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 stat("/opt/thinlinc/lib/x86_64", 0x7ffc339d09f0) = -1 ENOENT (No such file or directory)
18:12:54 open("/opt/thinlinc/lib/libselinux.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 stat("/opt/thinlinc/lib", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
18:12:54 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
18:12:54 fstat(3, {st_mode=S_IFREG|0644, st_size=95164, ...}) = 0
18:12:54 mmap(NULL, 95164, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f0d540a9000
18:12:54 close(3)                       = 0
18:12:54 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
18:12:54 open("/lib/x86_64-linux-gnu/libselinux.so.1", O_RDONLY|O_CLOEXEC) = 3
18:12:54 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20c\0\0\0\0\0\0"..., 832) = 832
18:12:54 fstat(3, {st_mode=S_IFREG|0644, st_size=142728, ...}) = 0
18:12:54 mmap(NULL, 2246896, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f0d53c7e000
18:12:54 mprotect(0x7f0d53c9f000, 2097152, PROT_NONE) = 0
18:12:54 mmap(0x7f0d53e9f000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x21000) = 0x7f0d53e9f000
18:12:54 mmap(0x7f0d53ea1000, 6384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f0d53ea1000
18:12:54 close(3)                       = 0
18:12:54 open("/opt/thinlinc/lib64/libacl.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 open("/opt/thinlinc/lib/libacl.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
18:12:54 open("/lib/x86_64-linux-gnu/libacl.so.1", O_RDONLY|O_CLOEXEC) = 3
18:12:54 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\200\37\0\0\0\0\0\0"..., 832) = 832
18:12:54 fstat(3, {st_mode=S_IFREG|0644, st_size=35288, ...}) = 0
18:12:54 mmap(NULL, 2130592, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f0d53a75000
18:12:54 mprotect(0x7f0d53a7d000, 2093056, PROT_NONE) = 0
18:12:54 mmap(0x7f0d53c7c000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0x7f0d53c7c000
18:12:54 close(3)                       = 0
18:12:54 open("/opt/thinlinc/lib64/libattr.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 open("/opt/thinlinc/lib/libattr.so.1", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
18:12:54 open("/lib/x86_64-linux-gnu/libattr.so.1", O_RDONLY|O_CLOEXEC) = 3
18:12:54 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\23\0\0\0\0\0\0"..., 832) = 832
18:12:54 fstat(3, {st_mode=S_IFREG|0644, st_size=18640, ...}) = 0
18:12:54 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d540a8000
18:12:54 mmap(NULL, 2113912, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f0d53870000
18:12:54 mprotect(0x7f0d53874000, 2093056, PROT_NONE) = 0
18:12:54 mmap(0x7f0d53a73000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x7f0d53a73000
18:12:54 close(3)                       = 0
18:12:54 open("/opt/thinlinc/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 open("/opt/thinlinc/lib/libc.so.6", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
18:12:54 open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
18:12:54 read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0P\34\2\0\0\0\0\0"..., 832) = 832
18:12:54 fstat(3, {st_mode=S_IFREG|0755, st_size=1738176, ...}) = 0
18:12:54 mmap(NULL, 3844640, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f0d534c5000
18:12:54 mprotect(0x7f0d53666000, 2097152, PROT_NONE) = 0
18:12:54 mmap(0x7f0d53866000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1a1000) = 0x7f0d53866000
18:12:54 mmap(0x7f0d5386c000, 14880, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f0d5386c000
18:12:54 close(3)                       = 0
18:12:54 open("/opt/thinlinc/lib64/libpcre.so.3", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 open("/opt/thinlinc/lib/libpcre.so.3", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
18:12:54 open("/lib/x86_64-linux-gnu/libpcre.so.3", O_RDONLY|O_CLOEXEC) = 3
18:12:54 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20\27\0\0\0\0\0\0"..., 832) = 832
18:12:54 fstat(3, {st_mode=S_IFREG|0644, st_size=448440, ...}) = 0
18:12:54 mmap(NULL, 2543976, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f0d53257000
18:12:54 mprotect(0x7f0d532c3000, 2097152, PROT_NONE) = 0
18:12:54 mmap(0x7f0d534c3000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6c000) = 0x7f0d534c3000
18:12:54 close(3)                       = 0
18:12:54 open("/opt/thinlinc/lib64/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 open("/opt/thinlinc/lib/libdl.so.2", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
18:12:54 open("/lib/x86_64-linux-gnu/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
18:12:54 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\16\0\0\0\0\0\0"..., 832) = 832
18:12:54 fstat(3, {st_mode=S_IFREG|0644, st_size=14664, ...}) = 0
18:12:54 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d540a7000
18:12:54 mmap(NULL, 2109712, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f0d53053000
18:12:54 mprotect(0x7f0d53056000, 2093056, PROT_NONE) = 0
18:12:54 mmap(0x7f0d53255000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x7f0d53255000
18:12:54 close(3)                       = 0
18:12:54 open("/opt/thinlinc/lib64/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 open("/opt/thinlinc/lib/libpthread.so.0", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
18:12:54 access("/etc/ld.so.nohwcap", F_OK) = -1 ENOENT (No such file or directory)
18:12:54 open("/lib/x86_64-linux-gnu/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
18:12:54 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320n\0\0\0\0\0\0"..., 832) = 832
18:12:54 fstat(3, {st_mode=S_IFREG|0755, st_size=137384, ...}) = 0
18:12:54 mmap(NULL, 2213008, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f0d52e36000
18:12:54 mprotect(0x7f0d52e4e000, 2093056, PROT_NONE) = 0
18:12:54 mmap(0x7f0d5304d000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x17000) = 0x7f0d5304d000
18:12:54 mmap(0x7f0d5304f000, 13456, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f0d5304f000
18:12:54 close(3)                       = 0
18:12:54 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d540a6000
18:12:54 mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d540a4000
18:12:54 arch_prctl(ARCH_SET_FS, 0x7f0d540a4800) = 0
18:12:54 mprotect(0x7f0d53866000, 16384, PROT_READ) = 0
18:12:54 mprotect(0x7f0d5304d000, 4096, PROT_READ) = 0
18:12:54 mprotect(0x7f0d53255000, 4096, PROT_READ) = 0
18:12:54 mprotect(0x7f0d534c3000, 4096, PROT_READ) = 0
18:12:54 mprotect(0x7f0d53a73000, 4096, PROT_READ) = 0
18:12:54 mprotect(0x7f0d53c7c000, 4096, PROT_READ) = 0
18:12:54 mprotect(0x7f0d53e9f000, 4096, PROT_READ) = 0
18:12:54 mprotect(0x61e000, 4096, PROT_READ) = 0
18:12:54 mprotect(0x7f0d540c3000, 4096, PROT_READ) = 0
18:12:54 munmap(0x7f0d540a9000, 95164)  = 0
18:12:54 set_tid_address(0x7f0d540a4ad0) = 24947
18:12:54 set_robust_list(0x7f0d540a4ae0, 24) = 0
18:12:54 rt_sigaction(SIGRTMIN, {0x7f0d52e3c9b0, [], SA_RESTORER|SA_SIGINFO, 0x7f0d52e45890}, NULL, 8) = 0
18:12:54 rt_sigaction(SIGRT_1, {0x7f0d52e3ca40, [], SA_RESTORER|SA_RESTART|SA_SIGINFO, 0x7f0d52e45890}, NULL, 8) = 0
18:12:54 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
18:12:54 getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
18:12:54 statfs("/sys/fs/selinux", 0x7ffc339d21d0) = -1 ENOENT (No such file or directory)
18:12:54 statfs("/selinux", 0x7ffc339d21d0) = -1 ENOENT (No such file or directory)
18:12:54 brk(0)                         = 0x1847000
18:12:54 brk(0x1868000)                 = 0x1868000
18:12:54 open("/proc/filesystems", O_RDONLY) = 3
18:12:54 fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
18:12:54 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d540c0000
18:12:54 read(3, "nodev\tsysfs\nnodev\trootfs\nnodev\tr"..., 1024) = 406
18:12:54 read(3, "", 1024)              = 0
18:12:54 close(3)                       = 0
18:12:54 munmap(0x7f0d540c0000, 4096)   = 0
18:12:54 open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3
18:12:54 fstat(3, {st_mode=S_IFREG|0644, st_size=1607712, ...}) = 0
18:12:54 mmap(NULL, 1607712, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f0d53f1b000
18:12:54 close(3)                       = 0
18:12:54 geteuid()                      = 1000
18:12:54 ioctl(0, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
18:12:54 stat("/home/user", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
18:12:54 lstat("h.png", {st_mode=S_IFREG|0777, st_size=70121, ...}) = 0
18:12:54 lstat("/home/user/h.png", 0x7ffc339d1e40) = -1 ENOENT (No such file or directory)
18:12:54 rename("h.png", "/home/user/h.png") = -1 EXDEV (Invalid cross-device link)
18:12:54 unlink("/home/user/h.png") = -1 ENOENT (No such file or directory)
18:12:54 open("h.png", O_RDONLY|O_NOFOLLOW) = 3
18:12:54 fstat(3, {st_mode=S_IFREG|0777, st_size=70121, ...}) = 0
18:12:54 open("/home/user/h.png", O_WRONLY|O_CREAT|O_EXCL, 0700) = 4
18:12:54 fstat(4, {st_mode=S_IFREG|0700, st_size=0, ...}) = 0
18:12:54 fadvise64(3, 0, 0, POSIX_FADV_SEQUENTIAL) = 0
18:12:54 mmap(NULL, 139264, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0d53ef9000
18:12:54 read(3, "\211PNG\r\n\32\n\0\0\0\rIHDR\0\0\1\317\0\0\2K\10\2\0\0\0\16\323\212"..., 131072) = 70121
18:12:54 write(4, "\211PNG\r\n\32\n\0\0\0\rIHDR\0\0\1\317\0\0\2K\10\2\0\0\0\16\323\212"..., 70121) = 70121
18:12:54 read(3, "", 131072)            = 0
18:12:54 utimensat(4, NULL, {{1567613554, 990384100}, {1567574768, 163586000}}, 0) = 0
18:12:54 fchown(4, 0, 0)                = -1 EPERM (Operation not permitted)
18:12:54 fchown(4, 4294967295, 0)       = -1 EPERM (Operation not permitted)
18:12:54 flistxattr(3, NULL, 0)         = 0
18:13:24 flistxattr(3, "", 0)           = 0
18:13:24 fgetxattr(3, "system.posix_acl_access", 0x7ffc339d1a90, 132) = -1 EOPNOTSUPP (Operation not supported)
18:13:24 fsetxattr(4, "system.posix_acl_access", "\x02\x00\x00\x00\x01\x00\x07\x00\xff\xff\xff\xff\x04\x00\x07\x00\xff\xff\xff\xff \x00\x07\x00\xff\xff\xff\xff", 28, 0) = 0
18:13:24 close(4)                       = 0
18:13:24 close(3)                       = 0
18:13:24 munmap(0x7f0d53ef9000, 139264) = 0
18:13:24 lstat("/", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
18:13:24 newfstatat(AT_FDCWD, "h.png", {st_mode=S_IFREG|0777, st_size=70121, ...}, AT_SYMLINK_NOFOLLOW) = 0
18:13:24 unlinkat(AT_FDCWD, "h.png", 0) = 0
18:13:24 lseek(0, 0, SEEK_CUR)          = -1 ESPIPE (Illegal seek)
18:13:24 close(0)                       = 0
18:13:24 close(1)                       = 0
18:13:24 close(2)                       = 0
18:13:24 exit_group(0)                  = ?
18:13:24 +++ exited with 0 +++

As you can see the delay is between

Code: Select all

18:12:54 flistxattr(3, NULL, 0)         = 0
18:13:24 flistxattr(3, "", 0)           = 0

Using Debian 8.11 with kernel 4.19.67.
Samba share is on CentOS 7.3 and mounted with the following options:

Code: Select all

rw,relatime,vers=default,cache=strict,username=user,uid=0,noforceuid,gid=0,noforcegid,addr=x.x.x.x,file_mode=0777,dir_mode=0777,soft,nounix,mapposix,noperm,rsize=1048576,wsize=1048576,echo_interval=60,actimeo=1

Any ideas?

Thanks,
SH

Bloom · #2 Post by **Bloom** » 2019-09-04 16:51

I don't understand why people insist on using SMB for network shares between Linux systems. Use NFS, that's what it's for and it was designed for that. It is also MUCH faster than SMB!

andre@home · #3 Post by **andre@home** » 2019-09-04 17:40

SAMBA to other locations is quite unsafe.
Better use Webdav via https (via port 443)
https://realtimelogic.com/products/webdav/

I used in 2011 this as starter and upgraded it a few years ago for Debian 9.
http://www.bernaerts-nicolas.fr/linux/7 ... bdav-share

I can acces the servers world wide (servers on 2 different locations) in a quite fast and safe way.

Consider this change from SAMBA to e.g. Webdav.

Sheriff Hobbes · #4 Post by **Sheriff Hobbes** » 2019-09-06 10:16

Please comment on my problem, not what I should rather use.
I use the same share for conneting from Windows machines, that's why I use samba. All shares are on internal network, there's no security concern.

andre@home · #5 Post by **andre@home** » 2019-09-06 17:55

All shares are on internal network, there's no security concern.

and:

Sheriff Hobbes wrote:recently I'm experiencing a very weird, very annoying problem when I move or copy files from my Samba share to any other location.

?? This suggest really also outside your location, so please be more precise in what you do and / or want.

So my suggestion that SAMBA under these conditions stays like a solid rock.

And I use Webdav client also under Windows as a local disk /drive letter.

And I sometimes use Teamviewer for Linux with Teamviewer for Windows in the file transfer mode as another very safe option!
This option is handy when I want to approach locations under Linux which are not shared through Webdav.

You get my independent opinion and you still can do want you want.
I will not advise you on the rather unsafe SAMBA. I've left that route already since 2011...

Succes, whatever you choose.

https://www.spiffystores.com.au/kb/Usin ... ing_WebDAV
Netdrive 1.3 is freeware. works under win10.
I've put it on Wetransfer as it it is difficult to find a good version. I use this one for years.
https://wetransfer.com/downloads/f96def ... 237/dde557

Sheriff Hobbes · #6 Post by **Sheriff Hobbes** » 2019-09-06 19:03

andre@home wrote:?? This suggest really also outside your location, so please be more precise in what you do and / or want.

I just ment that it doesn't matter if I copy the file to another samba share or to the local file system.

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