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Algorithm for Merging Rings: Handling Server Related Task Failures

This resource guides you through handling server-related task failures when merging rings, including initiating recovery and security routines. Learn about the process, queries, and plug-ins involved.

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Algorithm for Merging Rings: Handling Server Related Task Failures

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  1. Resource related Commit request Plug-In Related Group Related Query request Server related Task related Failure … … … … … … … … … … Algorithm for Merging Rings Start What type of State request was received Ring merge inf. req Local connection unknown Initiate recovery & security routine VM Related unknown Is this request already in my MINE queue? What type of VM request? N Y

  2. … … Generate a commit, place commit in MINE, and pass commit along. Delete ring Rank shift Add ring stop Ring merge request released from hold. Continue processing Am I the split point? Record the request as Pending N Y Pass along the request to next member Y Is another merge in progress? Does this request have priority? stop N Y N

  3. Y Is a split in progress? N Put this request on HOLD until notified of higher rank request(s) completion(s) Consolidate local ring information. Generate RMIR (RMIR: Ring Merge Information Request) stop Place RMIR in PENDING Pass RMIR point-to-point to contact in complement ring

  4. Did point-to-point communication fail? Y Generate an add-ring-request failure notice N Put the add ring request on HOLD until RMIR commit received Place add-ring-request in HOLD until ARR failure committed stop stop

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