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Howdy,


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<div class="">We’ve noticed the error message "refresh: failure trying master ...: operation canceled” in our logs debugged from some slaves not updating DS records in some zones.</div>


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<div class="">Looking into this error over at: <a href="https://deepthought.isc.org/article/AA-01213/0/What-causes-refresh:-failure-trying-master-...:-operation-canceled-error-messages.html" class="">https://deepthought.isc.org/article/AA-01213/0/What-causes-refresh:-failure-trying-master-...:-operation-canceled-error-messages.html</a></div>


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<div class="">So far we have updated the RHEL6 kernel on the slaves which did nothing.</div>


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<div class="">We have disabled the netfilter module which does seem to resolve the issue in our limited testing, but our sysadmins would like to continue use of this module for other reasons.</div>


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<div class="">My question:</div>


<div class="">What information would be most useful in our incoming bug report?</div>


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<div class=""><font face="Monaco" size="1" class=""><span style="line-height: 14px;" class="">—</span></font><br class="">


<div class=""><font face="Monaco" size="1" class=""><span style="line-height: 14px; background-color: rgb(255, 255, 255);" class="">Raymond Walker</span></font></div>


<div class=""><font face="Monaco" size="1" class=""><span style="line-height: 14px; background-color: rgb(255, 255, 255);" class="">Software Systems Engineer StSp</span></font></div>


<div class=""><font face="Monaco" size="1" class=""><span style="line-height: 14px; background-color: rgb(255, 255, 255);" class="">ITS Northern Arizona University</span></font></div>


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