[IGNITE-1384] Compute job ids duplication

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.6
• Labels: user-request
• Assignee: Yakov Zhdanov
• Reporter: Sergey Sidorov
• Created: 08/Sep/15 00:03
• Updated: 29/Apr/16 12:58
• Resolved: 29/Apr/16 12:58

Description

Configure custom CollisionSpi with any implemenation which keeps waiting jobs list not empty. Execute considerable amount of tasks (e.g. 10000) from 2 or more nodes with jobs mapped to one node.

Error occurs on mapped node: "Received computation request with duplicate job ID (could be network malfunction, source node may hang if task timeout was not set)"

Reason: TaskGridWorker:processMappedJobs generates job ids as following: IgniteUuid jobId = IgniteUuid.fromUuid(node.id());
where node.id() is identifier of node the job is mapped to. So parallel generation of job ids on different nodes leads to ids duplication.

Possible solution: use node.id() of local node in job id generation.