fix: Skip set node unreachable when get shard client failed (#31277) #31451
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issue: #30531
pr: #31277
cause get client from
shardClientMgr
, doesn't means query node is unavailable. because of the ref counter policy inshardClientMgr
, which will clean the client, if no collection use qn as shard leader.This PR fix that set node unreachable when get shard client failed.