EOPNOTSUPP (Operation not supported) -High CPU

[SJ77]

Hi

Server slowing to a crawl (happens a lot) ; trying to trace down source of high CPU usage.

• problem looks mysql process related.  When I trace the process I see a loop happening over and over with the same error.
• ran query to show processlist and I don't see anything out of the ordinary.

Any idea how to track down what is eating up my CPU?

Thank you

looping error below.

setsockopt(1068, SOL_IP, IP_TOS, [8], 4) = -1 EOPNOTSUPP (Operation not supported)
futex(0x6e89a4ceb0d4, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x6e89a4ceb0d0, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1
futex(0x6e89c2563408, FUTEX_WAKE_PRIVATE, 1) = 1
poll([{fd=314, events=POLLIN}, {fd=315, events=POLLIN}], 2, -1) = 1 ([{fd=315, revents=POLLIN}])
fcntl(315, F_GETFL)                     = 0x2 (flags O_RDWR)
fcntl(315, F_SETFL, O_RDWR|O_NONBLOCK)  = 0
accept(315, {sa_family=AF_LOCAL, NULL}, [2]) = 1068
fcntl(1068, F_GETFD)                    = 0
fcntl(1068, F_SETFD, FD_CLOEXEC)        = 0
fcntl(315, F_SETFL, O_RDWR)             = 0
fcntl(1068, F_SETFD, FD_CLOEXEC)        = 0
fcntl(1068, F_SETFL, O_RDONLY|O_NONBLOCK) = 0
setsockopt(1068, SOL_IP, IP_TOS, [8], 4) = -1 EOPNOTSUPP (Operation not supported)
futex(0x6e89be4030d4, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x6e89be4030d0, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1
futex(0x6e89c2563608, FUTEX_WAKE_PRIVATE, 1) = 1
poll([{fd=314, events=POLLIN}, {fd=315, events=POLLIN}], 2, -1) = 1 ([{fd=315, revents=POLLIN}])
fcntl(315, F_GETFL)                     = 0x2 (flags O_RDWR)
fcntl(315, F_SETFL, O_RDWR|O_NONBLOCK)  = 0
accept(315, {sa_family=AF_LOCAL, NULL}, [2]) = 1068
fcntl(1068, F_GETFD)                    = 0
fcntl(1068, F_SETFD, FD_CLOEXEC)        = 0
fcntl(315, F_SETFL, O_RDWR)             = 0
fcntl(1068, F_SETFD, FD_CLOEXEC)        = 0
fcntl(1068, F_SETFL, O_RDONLY|O_NONBLOCK) = 0
setsockopt(1068, SOL_IP, IP_TOS, [8], 4) = -1 EOPNOTSUPP (Operation not supported)
futex(0x6e89a4f210d4, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x6e89a4f210d0, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1
futex(0x6e89c2563808, FUTEX_WAKE_PRIVATE, 1) = 1
poll([{fd=314, events=POLLIN}, {fd=315, events=POLLIN}], 2, -1) = 1 ([{fd=315, revents=POLLIN}])
fcntl(315, F_GETFL)                     = 0x2 (flags O_RDWR)
fcntl(315, F_SETFL, O_RDWR|O_NONBLOCK)  = 0
accept(315, {sa_family=AF_LOCAL, NULL}, [2]) = 1068
fcntl(1068, F_GETFD)                    = 0
fcntl(1068, F_SETFD, FD_CLOEXEC)        = 0
fcntl(315, F_SETFL, O_RDWR)             = 0
fcntl(1068, F_SETFD, FD_CLOEXEC)        = 0
fcntl(1068, F_SETFL, O_RDONLY|O_NONBLOCK) = 0
setsockopt(1068, SOL_IP, IP_TOS, [8], 4) = -1 EOPNOTSUPP (Operation not supported)
futex(0x6e8ad6a0b0d4, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x6e8ad6a0b0d0, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1
futex(0x6e89c2563a08, FUTEX_WAKE_PRIVATE, 1) = 1
poll([{fd=314, events=POLLIN}, {fd=315, events=POLLIN}], 2, -1) = 1 ([{fd=315, revents=POLLIN}])
fcntl(315, F_GETFL)                     = 0x2 (flags O_RDWR)
fcntl(315, F_SETFL, O_RDWR|O_NONBLOCK)  = 0
accept(315, {sa_family=AF_LOCAL, NULL}, [2]) = 1070
fcntl(1070, F_GETFD)                    = 0
fcntl(1070, F_SETFD, FD_CLOEXEC)        = 0
fcntl(315, F_SETFL, O_RDWR)             = 0
fcntl(1070, F_SETFD, FD_CLOEXEC)        = 0
fcntl(1070, F_SETFL, O_RDONLY|O_NONBLOCK) = 0
setsockopt(1070, SOL_IP, IP_TOS, [8], 4) = -1 EOPNOTSUPP (Operation not supported)
futex(0x6e89abde30d4, FUTEX_WAKE_OP_PRIVATE, 1, 1, 0x6e89abde30d0, {FUTEX_OP_SET, 0, FUTEX_OP_CMP_GT, 1}) = 1

 

[rhyker2u]

Someone with what seems to be a similar issue at https://serverfault.com/questions/374120/setsockopt-eopnotsupp-operation-not-supported and suggestions.

Other things that might help: