wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 9476
wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 9477
rt_sigaction(SIGINT, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc2c92df060}, {sa_handler=0x449930, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc2c92df060}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [CHLD], NULL, 8) = 0
close(3)                                = -1 EBADF (Bad file descriptor)
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9476, si_uid=0, si_status=0, si_utime=5422, si_stime=118} ---
wait4(-1, 0x7ffe21d44f50, WNOHANG, NULL) = -1 ECHILD (No child processes)
rt_sigreturn({mask=[]})                 = 0
read(255, "echo \"[INFO]: MySQL Daily backup"..., 7666) = 5605
write(1, "[INFO]: MySQL Daily backup Done."..., 33) = 33
brk(0x730000)                           = 0x730000
brk(0x731000)                           = 0x731000
brk(0x732000)                           = 0x732000
brk(0x733000)                           = 0x733000
brk(0x734000)                           = 0x734000
brk(0x735000)                           = 0x735000
brk(0x736000)                           = 0x736000
brk(0x737000)                           = 0x737000
brk(0x738000)                           = 0x738000
pipe([3, 4])                            = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
lseek(255, -521, SEEK_CUR)              = 7145
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7fc2c9c919d0) = 9828
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigaction(SIGCHLD, {sa_handler=0x44cf90, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fc2c92df060}, {sa_handler=0x44cf90, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fc2c92df060}, 8) = 0
close(4)                                = 0
read(3, "2020-04-07\n", 128)            = 11
brk(0x739000)                           = 0x739000
read(3, "", 128)                        = 0
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9828, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], WNOHANG, NULL) = 9828
wait4(-1, 0x7ffe21d42ad0, WNOHANG, NULL) = -1 ECHILD (No child processes)
rt_sigreturn({mask=[]})                 = 0
close(3)                                = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {sa_handler=0x449930, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc2c92df060}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc2c92df060}, 8) = 0
rt_sigaction(SIGINT, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc2c92df060}, {sa_handler=0x449930, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc2c92df060}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [INT CHLD], 8) = 0
rt_sigprocmask(SIG_SETMASK, [INT CHLD], NULL, 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7fc2c9c919d0) = 9829
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {sa_handler=0x449930, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc2c92df060}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc2c92df060}, 8) = 0
wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 9829
rt_sigaction(SIGINT, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc2c92df060}, {sa_handler=0x449930, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc2c92df060}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9829, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
wait4(-1, 0x7ffe21d42d90, WNOHANG, NULL) = -1 ECHILD (No child processes)
rt_sigreturn({mask=[]})                 = 0
stat(".", {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
stat("/root/.nvm/versions/node/v12.13.1/bin/clickhouse-client", 0x7ffe21d43980) = -1 ENOENT (No such file or directory)
stat("/usr/local/sbin/clickhouse-client", 0x7ffe21d43980) = -1 ENOENT (No such file or directory)
stat("/usr/local/bin/clickhouse-client", 0x7ffe21d43980) = -1 ENOENT (No such file or directory)
stat("/usr/sbin/clickhouse-client", 0x7ffe21d43980) = -1 ENOENT (No such file or directory)
stat("/usr/bin/clickhouse-client", {st_mode=S_IFREG|0755, st_size=227308232, ...}) = 0
stat("/usr/bin/clickhouse-client", {st_mode=S_IFREG|0755, st_size=227308232, ...}) = 0
geteuid()                               = 0
getegid()                               = 0
getuid()                                = 0
getgid()                                = 0
access("/usr/bin/clickhouse-client", X_OK) = 0
stat("/usr/bin/clickhouse-client", {st_mode=S_IFREG|0755, st_size=227308232, ...}) = 0
geteuid()                               = 0
getegid()                               = 0
getuid()                                = 0
getgid()                                = 0
access("/usr/bin/clickhouse-client", R_OK) = 0
stat("/usr/bin/clickhouse-client", {st_mode=S_IFREG|0755, st_size=227308232, ...}) = 0
stat("/usr/bin/clickhouse-client", {st_mode=S_IFREG|0755, st_size=227308232, ...}) = 0
geteuid()                               = 0
getegid()                               = 0
getuid()                                = 0
getgid()                                = 0
access("/usr/bin/clickhouse-client", X_OK) = 0
stat("/usr/bin/clickhouse-client", {st_mode=S_IFREG|0755, st_size=227308232, ...}) = 0
geteuid()                               = 0
getegid()                               = 0
getuid()                                = 0
getgid()                                = 0
access("/usr/bin/clickhouse-client", R_OK) = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7fc2c9c919d0) = 9830
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
rt_sigaction(SIGINT, {sa_handler=0x449930, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc2c92df060}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc2c92df060}, 8) = 0
wait4(-1, [{WIFEXITED(s) && WEXITSTATUS(s) == 0}], 0, NULL) = 9830
rt_sigaction(SIGINT, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc2c92df060}, {sa_handler=0x449930, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc2c92df060}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=9830, si_uid=0, si_status=0, si_utime=1, si_stime=1} ---
wait4(-1, 0x7ffe21d42d90, WNOHANG, NULL) = -1 ECHILD (No child processes)
rt_sigreturn({mask=[]})                 = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [], 8) = 0
pipe([3, 4])                            = 0
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [CHLD], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7fc2c9c919d0) = 9832
rt_sigprocmask(SIG_SETMASK, [CHLD], NULL, 8) = 0
close(4)                                = 0
close(4)                                = -1 EBADF (Bad file descriptor)
rt_sigprocmask(SIG_BLOCK, [INT CHLD], [CHLD], 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x7fc2c9c919d0) = 9833
rt_sigprocmask(SIG_SETMASK, [CHLD], NULL, 8) = 0
close(3)                                = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [CHLD], 8) = 0
rt_sigprocmask(SIG_SETMASK, [CHLD], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], [CHLD], 8) = 0
rt_sigaction(SIGINT, {sa_handler=0x449930, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc2c92df060}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fc2c92df060}, 8) = 0
wait4(-1,  <detached ...>