[Samba] samba process use 100% cpu

Dante F. B. Colò dante.colo at stwbrasil.com
Tue May 9 16:15:01 UTC 2017


Did you install it from binary packages ? compiled from source ? Post your smb.conf here.


----- Original Message -----
From: "samba" <samba at lists.samba.org>
To: "samba" <samba at lists.samba.org>
Sent: Tuesday, May 9, 2017 1:01:10 PM
Subject: Re: [Samba] samba process use 100% cpu

Anybody?


2017. 05. 02. 10:48 keltezéssel, Papp Bence via samba írta:
> Hi!
>
>
> I need some help.
>
> We use samba4 as AD, and now when clients connect to server, samba 
> process stuck at 100% cpu.
>
> samba Version: 4.3.4 Release: 13.el6
>
>
> top:
>
>  3777 root      20   0  131m  46m  28m R 99.7  0.3 219:20.53 
> /usr/local/samba4//sbin/samba -D
> 24541 csertam   20   0 49260  11m 9048 S 25.1  0.1   0:01.56 smbd -D
>  7080 squid     20   0  926m 908m 6428 S  9.9  6.2  11:43.50 (squid-1) 
> -f /etc/squid/squid.conf
> 25503 squid     20   0 40236  36m 1040 S  3.3  0.2   0:00.10 
> (squidGuard) -c /etc/squid/squidguard.conf
> 25507 squid     20   0 39840  35m 1036 S  3.3  0.2   0:00.10 
> (squidGuard) -c /etc/squid/squidguard.conf
> 25506 squid     20   0 39836  35m 1036 S  3.0  0.2   0:00.09 
> (squidGuard) -c /etc/squid/squidguard.conf
> 25508 squid     20   0 39840  35m 1036 S  3.0  0.2   0:00.09 
> (squidGuard) -c /etc/squid/squidguard.conf
> 25511 squid     20   0 39836  35m 1036 S  2.6  0.2   0:00.08 
> (squidGuard) -c /etc/squid/squidguard.conf
>  7123 root      20   0  117m  26m 4004 S  1.7  0.2  11:48.54 
> /usr/bin/python /usr/sbin/presenced -d
> 24798 3000039   20   0  143m  23m 6204 S  1.0  0.2   0:01.03 
> /usr/local/samba4/sbin/smbd -D --option=server role check:inhibit=yes 
> --foreground
> 25408 root      20   0  9760 1704 1072 R  1.0  0.0   0:00.23 top -c
>  2565 root      20   0  143m  23m 6232 S  0.7  0.2   0:02.60 
> /usr/local/samba4/sbin/smbd -D --option=server role check:inhibit=yes 
> --foreground
>  6094 root      20   0  143m  23m 6236 S  0.7  0.2   0:02.97 
> /usr/local/samba4/sbin/smbd -D --option=server role check:inhibit=yes 
> --foreground
>  6432 qpidd     20   0  151m  14m 4560 S  0.7  0.1   1:55.56 
> /usr/sbin/qpidd --data-dir /var/lib/qpidd --daemon
>  8295 root      20   0  143m  23m 6232 S  0.7  0.2   0:02.48 
> /usr/local/samba4/sbin/smbd -D --option=server role check:inhibit=yes 
> --foreground
> 16526 root      20   0  143m  23m 6204 S  0.7  0.2   0:03.46 
> /usr/local/samba4/sbin/smbd -D --option=server role check:inhibit=yes 
> --foreground
> 26586 root      20   0  143m  23m 6232 S  0.7  0.2   0:02.60 
> /usr/local/samba4/sbin/smbd -D --option=server role check:inhibit=yes 
> --foreground
>  1294 root      20   0     0    0    0 S  0.3  0.0   0:31.24 
> [flush-253:4]
>  1987 root      20   0     0    0    0 S  0.3  0.0   6:12.93 
> [kondemand/0]
>  2089 ldap      20   0  569m 125m  13m S  0.3  0.9  11:49.78 
> /usr/sbin/ns-slapd -D /etc/dirsrv/slapd-sulixerver -i 
> /var/run/dirsrv/slapd-sulixerver.pid -w 
> /var/run/dirsrv/slapd-sulixerver.startpid
>  3764 mysql     20   0  221m  77m 6240 S  0.3  0.5  90:00.06 
> /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql 
> --user=mysql --log-error=/var/log/mysqld.log 
> --pid-file=/var/run/mysqld/mysqld.pid --s
>  3784 root      20   0  130m  19m 1732 S  0.3  0.1   1:31.75 
> /usr/local/samba4//sbin/samba -D
>  6561 sogo      20   0 56784  10m 4172 S  0.3  0.1   4:05.72 
> /usr/sbin/sogod -WOWorkersCount 100 -WOPidFile /var/run/sogo/sogo.pid 
> -WOLogFile /var/log/sogo/sogo.log
>  8047 root      20   0  143m  23m 6236 S  0.3  0.2   0:03.00 
> /usr/local/samba4/sbin/smbd -D --option=server role check:inhibit=yes 
> --foreground
>  8562 3000025   20   0  143m  23m 6272 S  0.3  0.2   0:02.48 
> /usr/local/samba4/sbin/smbd -D --option=server role check:inhibit=yes 
> --foreground
>  9650 root      20   0  143m  23m 6228 S  0.3  0.2   0:02.39 
> /usr/local/samba4/sbin/smbd -D --option=server role check:inhibit=yes 
> --foreground
> 11370 root      20   0  143m  23m 6232 S  0.3  0.2   0:02.90 
> /usr/local/samba4/sbin/smbd -D --option=server role check:inhibit=yes 
> --foreground
> 18826 root      20   0  143m  23m 6236 S  0.3  0.2   0:02.91 
> /usr/local/samba4/sbin/smbd -D --option=server role check:inhibit=yes 
> --foreground
> 24465 3000040   20   0  143m  23m 6228 S  0.3  0.2   0:02.99 
> /usr/local/samba4/sbin/smbd -D --option=server role check:inhibit=yes 
> --foreground
> 24668 root      20   0  143m  23m 6240 S  0.3  0.2   0:02.46 
> /usr/local/samba4/sbin/smbd -D --option=server role check:inhibit=yes 
> --foreground
> 26180 3000058   20   0  143m  23m 6248 S  0.3  0.2   0:02.54 
> /usr/local/samba4/sbin/smbd -D --option=server role check:inhibit=yes 
> --foreground
> 26997 3000146   20   0  143m  23m 6252 S  0.3  0.2   0:02.83 
> /usr/local/samba4/sbin/smbd -D --option=server role check:inhibit=yes 
> --foreground
>
>
>
> I tried strace, and got this:
>
>
> fcntl64(13, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=9400, 
> len=1}, 0xbff3ce24) = 0
> writev(50, [{"0\0", 2}, 
> {"\5\0\2\3\20\0\0\0000\0\0\0\2\0\0\0\30\0\0\0\0\0\0\0\0\0\0\0\336\210/g"..., 
> 48}], 2) = 50
> epoll_wait(11, {{EPOLLIN, {u32=2962349656, u64=2962349656}}}, 1, 
> 30000) = 1
> readv(49, [{"\204\0", 2}], 1)           = 2
> readv(49, [{"\5\0\0\3\20\0\0\0\204\0\0\0\3\0\0\0", 16}, 
> {"l\0\0\0\0\0D\0\0\0\0\0\37\215\27\1; 
> \345N\273\216}\4\227\311\214|\1\0\0\0"..., 116}], 2) = 132
> gettimeofday({1493714662, 571764}, NULL) = 0
> time(NULL)                              = 1493714662
> time(NULL)                              = 1493714662
> time(NULL)                              = 1493714662
> time(NULL)                              = 1493714662
> time(NULL)                              = 1493714662
> time(NULL)                              = 1493714662
> fcntl64(14, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=3140, 
> len=1}, 0xbff3c1b4) = 0
> fcntl64(14, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=3140, 
> len=1}, 0xbff3c234) = 0
> fcntl64(14, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=3140, 
> len=1}, 0xbff3c0e4) = 0
> fcntl64(14, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=3140, 
> len=1}, 0xbff3c164) = 0
> time(NULL)                              = 1493714662
> fcntl64(13, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=26440, 
> len=1}, 0xbff3cdf4) = 0
> fcntl64(13, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=26440, 
> len=1}, 0xbff3ce74) = 0
> fcntl64(13, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=26440, 
> len=1}, 0xbff3cd24) = 0
> fcntl64(13, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=26440, 
> len=1}, 0xbff3cda4) = 0
> time(NULL)                              = 1493714662
> time(NULL)                              = 1493714662
> time(NULL)                              = 1493714662
> time(NULL)                              = 1493714662
> time(NULL)                              = 1493714662
> time(NULL)                              = 1493714662
> fcntl64(14, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=3140, 
> len=1}, 0xbff3c1e4) = 0
> fcntl64(14, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=3140, 
> len=1}, 0xbff3c264) = 0
> fcntl64(14, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=3140, 
> len=1}, 0xbff3c114) = 0
> fcntl64(14, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=3140, 
> len=1}, 0xbff3c194) = 0
> time(NULL)                              = 1493714662
> fcntl64(13, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=26440, 
> len=1}, 0xbff3ce24) = 0
> fcntl64(13, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=26440, 
> len=1}, 0xbff3cea4) = 0
> fcntl64(13, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=20284, 
> len=1}, 0xbff3cb64) = 0
> fcntl64(13, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=20284, 
> len=1}, 0xbff3cbe4) = 0
> fcntl64(13, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=21732, 
> len=1}, 0xbff3cd54) = 0
> fcntl64(13, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=21732, 
> len=1}, 0xbff3cdd4) = 0
> writev(49, [{"\264\0", 2}, 
> {"\5\0\2\3\20\0\0\0\264\0\0\0\3\0\0\0\234\0\0\0\0\0\0\0\4\0\2\0\1\0\0\0"..., 
> 180}], 2) = 182
> epoll_wait(11, {{EPOLLIN, {u32=2957714824, u64=2957714824}}}, 1, 
> 30000) = 1
> readv(54, [{",\0", 2}], 1)              = 2
> readv(54, [{"\5\0\0\3\20\0\0\0,\0\0\0\4\0\0\0", 16}, 
> {"\24\0\0\0\0\0\0\0\0\0\0\0#\207e\341\321\272BL\276W[\373\3712\326\227", 
> 28}], 2) = 44
> gettimeofday({1493714662, 574431}, NULL) = 0
> writev(54, [{"0\0", 2}, 
> {"\5\0\2\3\20\0\0\0000\0\0\0\4\0\0\0\30\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 
> 48}], 2) = 50
> epoll_wait(11, {{EPOLLIN|EPOLLHUP, {u32=2966417304, u64=2966417304}}}, 
> 1, 30000) = 1
> readv(52, [{"\0\0", 2}], 1)             = 0
> epoll_ctl(11, EPOLL_CTL_DEL, 52, {0, {u32=0, u64=0}}) = 0
> close(52)                               = 0
> fcntl64(23, F_SETLKW64, {type=F_WRLCK, whence=SEEK_SET, start=184, 
> len=1}, 0xbff3d0e4) = 0
> fcntl64(23, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=184, 
> len=1}, 0xbff3d134) = 0
> epoll_wait(11, {{EPOLLIN, {u32=2962320928, u64=2962320928}}}, 1, 
> 30000) = 1
> readv(62, [{",\0", 2}], 1)              = 2
> readv(62, [{"\5\0\0\3\20\0\0\0,\0\0\0\245\2\0\0", 16}, 
> {"\24\0\0\0\0\0'\0\2\0\0\0~\241\362`\312\327.G\2559\24\310\6\340\226\240", 
> 28}], 2) = 44
> gettimeofday({1493714662, 575413}, NULL) = 0
> time(NULL)                              = 1493714662
> time(NULL)                              = 1493714662
> time(NULL)                              = 1493714662
> time(NULL)                              = 1493714662
> time(NULL)                              = 1493714662
> time(NULL)                              = 1493714662
> fcntl64(14, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=3140, 
> len=1}, 0xbff3c0c4) = 0
> fcntl64(14, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=3140, 
> len=1}, 0xbff3c144) = 0
> fcntl64(14, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=3140, 
> len=1}, 0xbff3bff4) = 0
> fcntl64(14, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=3140, 
> len=1}, 0xbff3c074) = 0
> time(NULL)                              = 1493714662
> fcntl64(12, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=26808, 
> len=1}, 0xbff3c114) = 0
> fcntl64(12, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=26808, 
> len=1}, 0xbff3c164) = 0
> fcntl64(15, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=30480, 
> len=1}, 0xbff3c344) = 0
> fcntl64(15, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=30480, 
> len=1}, 0xbff3c3c4) = 0
> fcntl64(15, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=26808, 
> len=1}, 0xbff3c114) = 0
> fcntl64(15, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=26808, 
> len=1}, 0xbff3c164) = 0
> fcntl64(14, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=36380, 
> len=1}, 0xbff3c344) = 0
> fcntl64(14, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=36380, 
> len=1}, 0xbff3c3c4) = 0
> fcntl64(14, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=26808, 
> len=1}, 0xbff3c114) = 0
> fcntl64(14, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=26808, 
> len=1}, 0xbff3c164) = 0
> fcntl64(16, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=14612, 
> len=1}, 0xbff3c344) = 0
> fcntl64(16, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=14612, 
> len=1}, 0xbff3c3c4) = 0
> fcntl64(16, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=26808, 
> len=1}, 0xbff3c114) = 0
> fcntl64(16, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=26808, 
> len=1}, 0xbff3c164) = 0
> fcntl64(17, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=10100, 
> len=1}, 0xbff3c344) = 0
> fcntl64(17, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=10100, 
> len=1}, 0xbff3c3c4) = 0
> fcntl64(17, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=26808, 
> len=1}, 0xbff3c114) = 0
> fcntl64(17, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=26808, 
> len=1}, 0xbff3c164) = 0
> fcntl64(13, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=26440, 
> len=1}, 0xbff3c344) = 0
> fcntl64(13, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=26440, 
> len=1}, 0xbff3c3c4) = 0
> fcntl64(13, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=26808, 
> len=1}, 0xbff3c114) = 0
> fcntl64(13, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=26808, 
> len=1}, 0xbff3c194) = 0
> fcntl64(13, F_SETLKW64, {type=F_RDLCK, whence=SEEK_SET, start=38868, 
> len=1}, 0xbff3c274) = 0
> fcntl64(13, F_SETLKW64, {type=F_UNLCK, whence=SEEK_SET, start=38868, 
> len=1}, 0xbff3c2f4) = 0
>
>
> Can somebody help me how can I investigate the problem?
>
> Sincerely,
>
> Papp Bence
>
>


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