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<p>What version of Spectrum Scale is running there? Do these errors
appear since your last version update?<br>
</p>
<div class="moz-cite-prefix">Am 14.02.23 um 14:09 schrieb Walter
Sklenka:<br>
</div>
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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
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">Following is an excerpt from
mmfs.log.latest
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">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.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">2023-02-14_12:06:53.600+0100: [W]
------------------[GPFS Critical Thread
Watchdog]------------------<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">2023-02-14_12:06:53.600+0100: [W]
PID: 7294 State: R (DiskLeaseThread) is overloaded for more
than 8 seconds<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">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)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">2023-02-14_12:06:53.600+0100: [W]
Call Trace(PID: 7294):<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">2023-02-14_12:06:53.600+0100: [W]
#0: 0x000055CABDF49521 BaseMutexClass::release() + 0x12 at
??:0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"">2023-02-14_12:06:53.600+0100: [W] #1:
0xB1557721BBABD900 _etext + 0xB154F7E646041C0E at ??:0<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">2023-02-14_12:07:09.554+0100: [N]
Disk lease reacquired in cluster xxx-cluster.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">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.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">2023-02-14_12:07:11.605+0100: [N]
Disk lease reacquired in cluster xxx-cluster.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">2023-02-14_12:10:55.990+0100: [I]
Command: mmlspool /dev/fs4vm all -L -Y<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">2023-02-14_12:10:55.990+0100: [I]
Command: successful mmlspool /dev/fs4vm all -L -Y<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">2023-02-14_12:30:58.756+0100: [I]
Command: mmlspool /dev/fs4vm all -L -Y<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">2023-02-14_12:30:58.756+0100: [I]
Command: successful mmlspool /dev/fs4vm all -L -Y<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">2023-02-14_13:10:55.988+0100: [I]
Command: mmlspool /dev/fs4vm all -L -Y<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">2023-02-14_13:10:55.989+0100: [I]
Command: successful mmlspool /dev/fs4vm all -L -Y<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">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<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">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<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">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.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">2023-02-14_13:22:08.298+0100: [N]
Disk lease reacquired in cluster xxx-cluster.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">2023-02-14_13:30:58.760+0100: [I]
Command: mmlspool /dev/fs4vm all -L -Y<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Courier
New"" lang="EN-US">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
style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black;mso-fareast-language:DE-AT">Mit
freundlichen Grüßen<br>
<b><i>Walter Sklenka</i></b><br>
</span><b><i><span
style="font-size:8.0pt;font-family:"Arial",sans-serif;color:gray;mso-fareast-language:DE-AT">Technical
Consultant</span></i></b><span
style="color:black;mso-fareast-language:DE-AT">
</span><span style="color:#212121;mso-fareast-language:DE-AT"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif;color:black;mso-fareast-language:DE-AT"> </span><span
style="color:#212121;mso-fareast-language:DE-AT"><o:p></o:p></span></p>
<br>
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