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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hi Felipe! <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Once again me. Thank you very much for the hint<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">I did not open a PMR yet because I fear they will ask me/us if we are cracy
</span><span lang="EN-US" style="font-family:"Segoe UI Emoji",sans-serif;mso-fareast-language:EN-US">☹</span><span lang="EN-US" style="mso-fareast-language:EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">I did not tell the full story yet
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">We have a 3 node cluster, 2 NSD servers o1,o2 (same site ) and g1 (different site). (rhel 8.7)
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">All of them are Vmware VMs
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">O1 and o2 have each 4 NVME drives passed through , there is a software raid 5 made over these NVMEs , and from them made a single NSD , for a filesystem fs4vm (m,r=2 )<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">[root@ogpfs1 ras]# mmlscluster<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">GPFS cluster information<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">========================<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"> GPFS cluster name: edvdesign-cluster.local<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"> GPFS cluster id: 12147978822727803186<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"> GPFS UID domain: edvdesign-cluster.local<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"> Remote shell command: /usr/bin/ssh<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"> Remote file copy command: /usr/bin/scp<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"> Repository type: CCR<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">Node Daemon node name IP address Admin node name Designation<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">----------------------------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"> 1 ogpfs1-hs.local 10.20.30.1 ogpfs1-hs.local quorum-manager-perfmon<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"> 2 ogpfs2-hs.local 10.20.30.2 ogpfs2-hs.local quorum-manager-perfmon<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"> 3 ggpfsq.mgmt.cloudia xxxx.other.net ggpfsq.mgmt. a quorum-perfmon<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">[root@ogpfs1 ras]# mmlsconfig<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">Configuration data for cluster edvdesign-cluster.local:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">-------------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">clusterName edvdesign-cluster.local<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">clusterId 12147978822727803186<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">autoload yes<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">profile gpfsProtocolRandomIO<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">dmapiFileHandleSize 32<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">minReleaseLevel 5.1.6.0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">tscCmdAllowRemoteConnections no<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">ccrEnabled yes<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">cipherList AUTHONLY<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">sdrNotifyAuthEnabled yes<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">maxblocksize 16M<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">[cesNodes]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">maxMBpS 5000<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">numaMemoryInterleave yes<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">enforceFilesetQuotaOnRoot yes<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">workerThreads 512<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">[common]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">tscCmdPortRange 60000-61000<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">[srv]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">verbsPorts mlx5_0/1 mlx5_1/1<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">[common]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">cesSharedRoot /fs4vmware/cesSharedRoot<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">[srv]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">maxFilesToCache 10000<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">maxStatCache 20000<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">[common]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">verbsRdma enable<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">[ggpfsq]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">verbsRdma disable<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">[common]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">verbsRdmaSend yes<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">[ggpfsq]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">verbsRdmaSend no<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">[common]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">verbsRdmaCm enable<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">[ggpfsq]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">verbsRdmaCm disable<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">[srv]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">pagepool 32G<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">[common]<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">adminMode central<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">File systems in cluster edvdesign-cluster.local:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">------------------------------------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">/dev/fs4vm<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">[root@ogpfs1 ras]# mmlsdisk fs4vm -L<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">disk driver sector failure holds holds storage<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">name type size group metadata data status availability disk id pool remarks<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">------------ -------- ------ ----------- -------- ----- ------------- ------------ ------- ------------ ---------<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">ogpfs1_1 nsd 512 1 yes yes ready up 1 system desc<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">ogpfs2_1 nsd 512 2 yes yes ready up 2 system desc<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">ggpfsq_qdisk nsd 512 -1 no no ready up 3 system desc<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">Number of quorum disks: 3<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">Read quorum value: 2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">Write quorum value: 2<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">And the two nodes o1 and o2 export the filesystem via CES NFS functions ( for VMware)
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">I think this isn´supported , that a NSD Server is also a CES Node?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">And finally the RDMA Network :
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">The both NSD servers also have a Mellanox ConnectX-6 Lx dual port 25Gb adapter also via passthrough
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">And these interfaces we configured for rdma (RoCE) ,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Last but not least: this network is not switched but direct attached ( 2x25Gb directly connected between the NSD nodes )<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">RDMA Connections between nodes:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"> Fabric 0 - Device mlx5_0 Port 1 Width 1x Speed EDR lid 0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"> hostname idx CM state VS buff RDMA_CT(ERR) RDMA_RCV_MB RDMA_SND_MB VS_CT(ERR) VS_SND_MB VS_RCV_MB WAIT_CON_SLOT
WAIT_NODE_SLOT<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"> ogpfs2-hs.local 0 Y RTS (Y)256 478202 (0 ) 12728 67024 8864789(0 ) 22776 4643 0
0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"> Fabric 0 - Device mlx5_1 Port 1 Width 1x Speed EDR lid 0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"> hostname idx CM state VS buff RDMA_CT(ERR) RDMA_RCV_MB RDMA_SND_MB VS_CT(ERR) VS_SND_MB VS_RCV_MB WAIT_CON_SLOT
WAIT_NODE_SLOT<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"> ogpfs2-hs.local 1 Y RTS (Y)256 477659 (0 ) 12489 67034 8864773(0 ) 22794 4639 0
0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US">[root@ogpfs1 ras]#<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New";mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">You mentioned that it might be a cpu contention : Maybe due to the VM layer (scheduling with other VMS) ? And wrong layout of VMs ( 8 vCPUs and 64GB Mem) [ esxis only single socket
with 32/64 cores HT) <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">And also the direct attached RDMA ( +DAEMON) network is also not good?
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Do you think IBM would say no to check such a configuration ?
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Best regards<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US">Walter
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<div>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> gpfsug-discuss <gpfsug-discuss-bounces@gpfsug.org>
<b>On Behalf Of </b>Felipe Knop<br>
<b>Sent:</b> Mittwoch, 15. Februar 2023 15:59<br>
<b>To:</b> gpfsug main discussion list <gpfsug-discuss@gpfsug.org><br>
<b>Subject:</b> Re: [gpfsug-discuss] Reasons for DiskLeaseThread Overloaded<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">Walter,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks for the details.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The stack trace below captures the lease thread in the middle of sending the “lease” RPC. This operation normally is not blocking, and we do not often block while sending the RPC. But the stack trace “does not show” whether
there was anything blocking the thread prior to the point where the RPCs are sent.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">At a first glance:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:07.430+0100: [W] counter: 0 (mark-idle: 0 mark-active: 0 pre-work: 0 post-work: 0) sched: (nvcsw: 0 nivcsw: 10)</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I believe<b> nivcsw: 10</b> means that the thread was scheduled out of the CPU involuntarily, possibly indicating that there is some CPU contention going on.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Could you open a case to get debug data collected? If the problem can be recreated, I think we’ll need a recreate of the problem with traces enabled.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Felipe<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">----<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Felipe Knop <a href="mailto:knop@us.ibm.com">knop@us.ibm.com</a><br>
GPFS Development and Security<br>
IBM Systems<br>
IBM Building 008<br>
2455 South Rd, Poughkeepsie, NY 12601<o:p></o:p></span></p>
</div>
</div>
</div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:12.0pt;color:black">From:
</span></b><span lang="EN-US" style="font-size:12.0pt;color:black">gpfsug-discuss <<a href="mailto:gpfsug-discuss-bounces@gpfsug.org">gpfsug-discuss-bounces@gpfsug.org</a>> on behalf of Walter Sklenka <<a href="mailto:Walter.Sklenka@EDV-Design.at">Walter.Sklenka@EDV-Design.at</a>><br>
<b>Reply-To: </b>gpfsug main discussion list <<a href="mailto:gpfsug-discuss@gpfsug.org">gpfsug-discuss@gpfsug.org</a>><br>
<b>Date: </b>Wednesday, February 15, 2023 at 4:23 AM<br>
<b>To: </b>gpfsug main discussion list <<a href="mailto:gpfsug-discuss@gpfsug.org">gpfsug-discuss@gpfsug.org</a>><br>
<b>Subject: </b>[EXTERNAL] Re: [gpfsug-discuss] Reasons for DiskLeaseThread Overloaded<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span lang="EN-US" style="font-size:1.0pt;color:white">Hi! This is a „full“ sequence in mmfs. log. latest Fortunately this was also the last event until now (yesterday evening) Maybe you can have a look?
2023-02-14_19: 43: 51. 474+0100: [N] Disk lease period expired 0. 030 seconds ago in cluster
<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Hi!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">This is a „full“ sequence in mmfs.log.latest<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Fortunately this was also the last event until now (yesterday evening)
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Maybe you can have a look? <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:43:51.474+0100: [N] Disk lease period expired 0.030 seconds ago in cluster xxx-cluster. Attempting to reacquire the lease.</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:07.430+0100: [W] ------------------[GPFS Critical Thread Watchdog]------------------</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:07.430+0100: [W] PID: 7294 State: R (DiskLeaseThread) is overloaded for more than 8 seconds</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:07.430+0100: [W] counter: 0 (mark-idle: 0 mark-active: 0 pre-work: 0 post-work: 0) sched: (nvcsw: 0 nivcsw: 10)</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:07.430+0100: [W] Call Trace(PID: 7294):</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:07.431+0100: [W] #0: 0x000055CABE4A56AB NodeConn::sendMessage(TcpConn**, iovec*, int, unsigned char, int, int, int, unsigned int, DestTag*, int*, unsigned
long long*, unsigned long long*, unsi</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">gned int*, CondvarName, vsendCallback_t*) + 0x42B at ??:0</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:07.432+0100: [W] #1: 0x000055CABE4A595F llc_send_msg(ClusterConfiguration*, NodeAddr, iovec*, int, unsigned char, int, int, int, unsigned int, DestTag*,
int*, TcpConn**, unsigned long long*, u</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">nsigned long long*, unsigned int*, CondvarName, vsendCallback_t*, int, unsigned int) + 0xDF at ??:0</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:07.437+0100: [W] #2: 0x000055CABE479A55 MsgRecord::send() + 0x1345 at ??:0</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:07.438+0100: [W] #3: 0x000055CABE47A169 tscSendInternal(ClusterConfiguration*, unsigned int, unsigned char, int, int, NodeAddr*, TscReply*, TscScatteredBuff*,
int, int (*)(void*, ClusterConfig</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">uration*, int, NodeAddr*, TscReply*), void*, ChainedCallback**, __va_list_tag*) + 0x339 at ??:0</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:07.439+0100: [W] #4: 0x000055CABE47C39A tscSendWithCallback(ClusterConfiguration*, unsigned int, unsigned char, int, NodeAddr*, TscReply*, int (*)(void*,
ClusterConfiguration*, int, NodeAddr*,</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">TscReply*), void*, void**, int, ...) + 0x1DA at ??:0</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:07.440+0100: [W] #5: 0x000055CABE5F9853 MyLeaseState::renewLease(NodeAddr, TickTime) + 0x6E3 at ??:0</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:07.440+0100: [W] #6: 0x000055CABE5FA682 ClusterConfiguration::checkAndRenewLease(TickTime) + 0x192 at ??:0</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:07.441+0100: [W] #7: 0x000055CABE5FAAC6 ClusterConfiguration::RunLeaseChecks(void*) + 0x366 at ??:0</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:07.441+0100: [W] #8: 0x000055CABDF2B662 Thread::callBody(Thread*) + 0x42 at ??:0</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:07.441+0100: [W] #9: 0x000055CABDF18680 Thread::callBodyWrapper(Thread*) + 0xA0 at ??:0</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:07.441+0100: [W] #10: 0x00007F3B7563D1CA start_thread + 0xEA at ??:0</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:07.441+0100: [W] #11: 0x00007F3B7435BE73 __GI___clone + 0x43 at ??:0</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:10.512+0100: [N] Disk lease reacquired in cluster xxx-cluster.</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:10.512+0100: [N] Disk lease period expired 7.970 seconds ago in cluster xxx-cluster. Attempting to reacquire the lease.</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Courier New"">2023-02-14_19:44:12.563+0100: [N] Disk lease reacquired in cluster xxx-cluster.
</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thank you very much!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Best regards<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Walter <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> gpfsug-discuss <<a href="mailto:gpfsug-discuss-bounces@gpfsug.org">gpfsug-discuss-bounces@gpfsug.org</a>>
<b>On Behalf Of </b>Felipe Knop<br>
<b>Sent:</b> Mittwoch, 15. Februar 2023 00:06<br>
<b>To:</b> gpfsug main discussion list <<a href="mailto:gpfsug-discuss@gpfsug.org">gpfsug-discuss@gpfsug.org</a>><br>
<b>Subject:</b> Re: [gpfsug-discuss] Reasons for DiskLeaseThread Overloaded<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">All,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">These messages like<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">[W] ------------------[GPFS Critical Thread Watchdog]------------------</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">indicate that a “critical thread”, in this case the lease thread, was apparently blocked for longer than expected. This is usually not caused by delays in the network, but possibly by excessive CPU load, blockage while
accessing the local file system, or possible mutex contention.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Do you have other samples of the message, with a more complete stack trace? Or was the instance below the only one?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Felipe<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">----<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Felipe Knop <a href="mailto:knop@us.ibm.com">knop@us.ibm.com</a><br>
GPFS Development and Security<br>
IBM Systems<br>
IBM Building 008<br>
2455 South Rd, Poughkeepsie, NY 12601<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:12.0pt;color:black">From:
</span></b><span lang="EN-US" style="font-size:12.0pt;color:black">gpfsug-discuss <<a href="mailto:gpfsug-discuss-bounces@gpfsug.org">gpfsug-discuss-bounces@gpfsug.org</a>> on behalf of Walter Sklenka <<a href="mailto:Walter.Sklenka@EDV-Design.at">Walter.Sklenka@EDV-Design.at</a>><br>
<b>Reply-To: </b>gpfsug main discussion list <<a href="mailto:gpfsug-discuss@gpfsug.org">gpfsug-discuss@gpfsug.org</a>><br>
<b>Date: </b>Tuesday, February 14, 2023 at 10:49 AM<br>
<b>To: </b>"<a href="mailto:gpfsug-discuss@gpfsug.org">gpfsug-discuss@gpfsug.org</a>" <<a href="mailto:gpfsug-discuss@gpfsug.org">gpfsug-discuss@gpfsug.org</a>><br>
<b>Subject: </b>[EXTERNAL] Re: [gpfsug-discuss] Reasons for DiskLeaseThread Overloaded</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal" style="mso-line-height-alt:.75pt"><span lang="EN-US" style="font-size:1.0pt;color:white">Hi! I started with 5. 1. 6. 0 and now am at [root@ ogpfs1 ~]# mmfsadm dump version Dump level: verbose Build branch "5. 1. 6. 1 ". the messages started
from the beginning From: gpfsug-discuss <gpfsug-discuss-bounces@ gpfsug. org> On
</span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black">This message came from outside your organization.
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<p class="MsoNormal"><span lang="EN-US">Hi!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I started with 5.1.6.0 and now am at [root@ogpfs1 ~]# mmfsadm dump version<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Dump level: verbose<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Build branch "5.1.6.1 ".<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">the messages started from the beginning <o:p>
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<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> gpfsug-discuss <<a href="mailto:gpfsug-discuss-bounces@gpfsug.org">gpfsug-discuss-bounces@gpfsug.org</a>>
<b>On Behalf Of </b>Christian Vieser<br>
<b>Sent:</b> Dienstag, 14. Februar 2023 15:34<br>
<b>To:</b> <a href="mailto:gpfsug-discuss@gpfsug.org">gpfsug-discuss@gpfsug.org</a><br>
<b>Subject:</b> Re: [gpfsug-discuss] Reasons for DiskLeaseThread Overloaded<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p><span lang="EN-US">What version of Spectrum Scale is running there? Do these errors appear since your last version update?<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Am 14.02.23 um 14:09 schrieb Walter Sklenka:<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US">Dear Collegues!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">May I ask if anyone has a hint what could be the reason for Critical Thread Watchdog warnings for Disk Leases Threads?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Is this a “local node” Problem or a network problem ?
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I see these messages sometimes arriving when NSD Servers which also serve as NFS servers when they get under heavy NFS load
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New""> </span><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">Following is an excerpt from mmfs.log.latest
</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New""> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_12:06:53.235+0100: [N] Disk lease period expired 0.040 seconds ago in cluster xxx-cluster. Attempting to reacquire the lease.</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_12:06:53.600+0100: [W] ------------------[GPFS Critical Thread Watchdog]------------------</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_12:06:53.600+0100: [W] PID: 7294 State: R (DiskLeaseThread) is overloaded for more than 8 seconds</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_12:06:53.600+0100: [W] counter: 0 (mark-idle: 0 mark-active: 0 pre-work: 0 post-work: 0) sched: (nvcsw: 0 nivcsw: 8)</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_12:06:53.600+0100: [W] Call Trace(PID: 7294):</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_12:06:53.600+0100: [W] #0: 0x000055CABDF49521 BaseMutexClass::release() + 0x12 at ??:0</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_12:06:53.600+0100: [W] #1: 0xB1557721BBABD900 _etext + 0xB154F7E646041C0E at ??:0</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_12:07:09.554+0100: [N] Disk lease reacquired in cluster xxx-cluster.</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_12:07:09.554+0100: [N] Disk lease period expired 5.680 seconds ago in cluster xxx-cluster. Attempting to reacquire the lease.</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_12:07:11.605+0100: [N] Disk lease reacquired in cluster xxx-cluster.</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_12:10:55.990+0100: [I] Command: mmlspool /dev/fs4vm all -L -Y</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_12:10:55.990+0100: [I] Command: successful mmlspool /dev/fs4vm all -L -Y</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_12:30:58.756+0100: [I] Command: mmlspool /dev/fs4vm all -L -Y</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_12:30:58.756+0100: [I] Command: successful mmlspool /dev/fs4vm all -L -Y</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_13:10:55.988+0100: [I] Command: mmlspool /dev/fs4vm all -L -Y</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_13:10:55.989+0100: [I] Command: successful mmlspool /dev/fs4vm all -L -Y</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_13:21:40.892+0100: [N] Node 10.20.30.2 (ogpfs2-hs.local) lease renewal is overdue. Pinging to check if it is alive</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_13:21:40.892+0100: [I] The TCP connection to IP address 10.20.30.2 ogpfs2-hs.local <c0n1>:[1] (socket 106) state: state=1 ca_state=0 snd_cwnd=10 snd_ssthresh=2147483647 unacked=0
probes=0 backoff=0 retransmits=0 rto=201000 rcv_ssthresh=1219344 rtt=121 rttvar=69 sacked=0 retrans=0 reordering=3 lost=0</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_13:22:00.220+0100: [N] Disk lease period expired 0.010 seconds ago in cluster xxx-cluster. Attempting to reacquire the lease.</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_13:22:08.298+0100: [N] Disk lease reacquired in cluster xxx-cluster.</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_13:30:58.760+0100: [I] Command: mmlspool /dev/fs4vm all -L -Y</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-family:"Courier New"">2023-02-14_13:30:58.760+0100: [I] Command: successful mmlspool /dev/fs4vm all -L -Y</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Mit freundlichen Grüßen<br>
<b><i>Walter Sklenka</i></b><br>
</span><b><i><span lang="EN-US" style="font-size:8.0pt;font-family:"Arial",sans-serif;color:gray">Technical Consultant</span></i></b><span lang="EN-US" style="color:black">
</span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"> </span><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
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