Hi,All, The file descriptors are "netlink". $sudo lsof -p $(pidof ovs-vswitchd) ovs-vswit 2197 root *297u netlink 0t0 42309398 GENERIC ovs-vswit 2197 root *298u netlink 0t0 42309399 GENERIC ovs-vswit 2197 root *299u sock 0,7 0t0 42309400 protocol: NETLINK ovs-vswit 2197 root *300u netlink 0t0 42309401 GENERIC ovs-vswit 2197 root *301u netlink 0t0 42309402 GENERIC ...More... ovs-vswit 2197 root *351u netlink 0t0 39326247 GENERIC ovs-vswit 2197 root *352u netlink 0t0 39121841 GENERIC ovs-vswit 2197 root *354w REG 253,0 10086253 1342248977 /var/log/openvswitch/ovs-vswitchd.log $sudo reboot When I restart the machine ,the file descriptor will increasing.Some time more then 12K record.
Recenty log about openvswitch. ovsdb-server.log 2017-10-21T04:01:02.559Z|01308|jsonrpc|WARN|Dropped 7 log messages in last 17 seconds (most recently, 10 seconds ago) due to excessive rate 2017-10-21T04:01:02.559Z|01309|jsonrpc|WARN|unix: receive error: Connection reset by peer 2017-10-21T04:01:02.560Z|01310|reconnect|WARN|unix: connection dropped (Connection reset by peer) 2017-10-21T04:01:03.282Z|01311|reconnect|WARN|unix: connection dropped (Connection reset by peer) 2017-10-21T04:01:10.075Z|01312|jsonrpc|WARN|Dropped 1 log messages in last 7 seconds (most recently, 7 seconds ago) due to excessive rate 2017-10-21T04:01:10.075Z|01313|jsonrpc|WARN|unix: send error: Broken pipe 2017-10-21T04:01:10.076Z|01314|reconnect|WARN|unix: connection dropped (Broken pipe) 2017-10-21T04:01:14.907Z|01315|reconnect|WARN|unix: connection dropped (Connection reset by peer) 2017-10-21T04:01:20.134Z|01316|reconnect|WARN|unix: connection dropped (Broken pipe) 2017-10-21T04:01:27.499Z|01317|jsonrpc|WARN|Dropped 2 log messages in last 13 seconds (most recently, 8 seconds ago) due to excessive rate 2017-10-21T04:01:27.499Z|01318|jsonrpc|WARN|unix: receive error: Connection reset by peer 2017-10-21T04:01:27.499Z|01319|reconnect|WARN|unix: connection dropped (Connection reset by peer) 2017-10-21T04:01:33.758Z|01320|jsonrpc|WARN|unix: receive error: Connection reset by peer 2017-10-21T04:01:33.758Z|01321|reconnect|WARN|unix: connection dropped (Connection reset by peer) 2017-10-21T04:01:34.489Z|01322|reconnect|WARN|unix: connection dropped (Connection reset by peer) 2017-10-21T04:01:39.198Z|01323|reconnect|WARN|unix: connection dropped (Connection reset by peer) 2017-10-21T04:01:41.569Z|01324|reconnect|WARN|unix: connection dropped (Broken pipe) 2017-10-21T04:01:41.913Z|01325|reconnect|WARN|unix: connection dropped (Broken pipe) 2017-10-21T04:01:42.365Z|01326|reconnect|WARN|unix: connection dropped (Connection reset by peer) ovs-vswitchd.log 2017-10-21T03:56:10.511Z|422666|netlink_socket|ERR|connect(0): Argument list too long 2017-10-21T03:56:10.513Z|422667|netlink_socket|ERR|connect(0): Argument list too long 2017-10-21T03:56:10.516Z|422668|netlink_socket|ERR|connect(0): Argument list too long 2017-10-21T03:56:10.518Z|422669|netlink_socket|ERR|connect(0): Argument list too long 2017-10-21T03:56:10.520Z|422670|netlink_socket|ERR|connect(0): Argument list too long 2017-10-21T03:56:10.523Z|422671|netlink_socket|ERR|connect(0): Argument list too long 2017-10-21T03:56:10.525Z|422672|netlink_socket|ERR|connect(0): Argument list too long 合天网安实验室-您身边的信息安全实验室 | quan_hp...@heetian.com From: Ben Pfaff Date: 2017-10-21 01:41 To: quan_hp...@heetian.com CC: ovs-discuss Subject: Re: [ovs-discuss] ovs-vswitch Huge number of netlink file descriptors open On Fri, Oct 20, 2017 at 06:56:26PM +0800, quan_hp...@heetian.com wrote: > Hi All, > I searched a mail list like my problem. > https://mail.openvswitch.org/pipermail/ovs-discuss/2017-March/043817.html > > $sudo lsof -p $(pidof ovs-vswitchd) | wc -l > 115536 > $cat /proc/$(cat /var/run/openvswitch/ovs-vswitchd.pid)/limits | grep open > Max open files 999999 999999 files > $ovs-vsctl show | grep -c Port > 905 > If anyone has any suggestions for how to solve it?Thanks. Can you find out what kinds of file descriptors are open? Are they sockets (and what kind), etc.? This could be a file descriptor leak of some kind. If it is, then restarting OVS would fix it; if it is not, then restarting OVS will not help, or at least not for long. Can you figure out whether restarting reduces the number of file descriptors, and by how much?
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