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Regarding a fix for this bug -
https://bugzilla.redhat.com/show_bug.cgi?id=2109351 multipath_component_detection parameter is not considered when lvm scans for PVs. This patch should fix that issue. It ensures that the multipath_component_detction parameter from lvm.conf is considered before checking for duplicated PVIDs and ignoring them if they are multipath components. I have built the patch and verified that it works. diff --git a/lib/cache/lvmcache.c b/lib/cache/lvmcache.c index 22edcfd84..892636aa7 100644 --- a/lib/cache/lvmcache.c +++ b/lib/cache/lvmcache.c @@ -898,7 +898,8 @@ next: /* * Get rid of multipath components based on matching wwids. */ - if (_all_multipath_components(cmd, info, pvid, &altdevs, &dev_mpath)) { + if ( find_config_tree_bool(cmd, devices_multipath_component_detection_CFG, NULL) && + _all_multipath_components(cmd, info, pvid, &altdevs, &dev_mpath) ){ if (info && dev_mpath && (info->dev != dev_mpath)) { /* * info should be dropped from lvmcache and info->dev I tried to create a pull request on
https://github.com/lvmteam/lvm2, but I couldn’t as I don’t have access. If I am granted access to the lvm2 github repo, I can create a PR for this patch. Kindly let me know how to proceed with this. Thanks, Gopi |
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