<div class="gmail_quote"><div><div class="h5"><div class="gmail_quote">Hello all,<br><br>we have a two node cluster setup , under heavy load (created using many paralallel ping flood sessions) the following messages are being observed in syslog.<br>
<br>Apr 19 09:49:59 err CLA-0 kernel: drbd6: PingAck did not arrive in time<br>
<br>The Device settings are as follows , could please anyone help me?<br><br>What should be done now to avoid this "pingACK problem in syslog"<br><br>Any help would be really helpfull.<br><br>ethtool for the eth interface which is used to communicate b/w DRBD device is as follows:<br>
<br># ethtool eth0<br>Settings for eth0:<br> Supported ports: [ FIBRE ]<br> Supported link modes: 1000baseT/Full<br> Supports auto-negotiation: Yes<br> Advertised link modes: 1000baseT/Full<br>
Advertised auto-negotiation: Yes<br> Speed: 1000Mb/s<br> Duplex: Full<br> Port: FIBRE<br> PHYAD: 2<br> Transceiver: internal<br> Auto-negotiation: on<br> Supports Wake-on: g<br>
Wake-on: g<br> Link detected: yes<br><br>DRBD version : version: 8.0.12.<br><br>Br,<br>Aditya<br><br># drbdsetup /dev/drbd0 show<br>disk {<br> size 0s _is_default; # bytes<br> on-io-error detach;<br>
fencing resource-only;<br>}<br>net {<br> timeout 60 _is_default; # 1/10 seconds<br> max-epoch-size 2048 _is_default;<br> max-buffers 2048 _is_default;<br>
unplug-watermark 128 _is_default;<br> connect-int 10 _is_default; # seconds<br> ping-int 10 _is_default; # seconds<br> sndbuf-size 131070 _is_default; # bytes<br>
ko-count 0 _is_default;<br> after-sb-0pri discard-older-primary;<br> after-sb-1pri discard-secondary;<br> after-sb-2pri disconnect _is_default;<br>
always-asbp ;<br> rr-conflict disconnect _is_default;<br> ping-timeout 10; # 1/10 seconds<br>}<br>syncer {<br> rate 30720k; # bytes/second<br> after -1 _is_default;<br>
al-extents 257;<br>}<br>protocol C;<br>_this_host {<br> device "/dev/drbd0";<br> disk "/dev/VG_62/sysimg";<br> meta-disk internal;<br>
address <a href="http://192.168.0.4:49156" target="_blank">192.168.0.4:49156</a>;<br>}<br>_remote_host {<br> address <a href="http://192.168.0.5:49156" target="_blank">192.168.0.5:49156</a>;<br>
}<br><br>
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