Commits on Mar 30, 2021

1. pkg/rules: fix deduplication of equal alerts with different labels …

   Currently, if an alerting rule having the same name with different
   severity labels is being returned from different replicas then they
   are being treated as separate alerts.
   
   Given the following alerts a1,a2 with severities s1,s2 returned from
   replicas r1,2:
   
   a1[s1,r1]
   a1[s2,r1]
   a1[s1,r2]
   a1[s2,r2]
   
   Then, currently, the algorithm deduplicates to:
   
   a1[s1]
   a1[s2]
   a1[s1]
   a1[s2]
   
   Instead of the intendet result:
   
   a1[s1]
   a1[s2]
   
   This fixes it by removing replica labels before sorting labels for
   deduplication.
   
   Signed-off-by: Sergiusz Urbaniak <sergiusz.urbaniak@gmail.com>

   

   s-urbaniak committed Mar 30, 2021
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