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Sihua Zhou commented on FLINK-9047: ----------------------------------- Hi [~till.rohrmann] have you already work on this? Or I'd like to take this ticket. > SlotPool can fail to release slots > ---------------------------------- > > Key: FLINK-9047 > URL: https://issues.apache.org/jira/browse/FLINK-9047 > Project: Flink > Issue Type: Bug > Components: Distributed Coordination > Affects Versions: 1.5.0 > Reporter: Till Rohrmann > Priority: Blocker > Labels: flip-6 > Fix For: 1.5.0 > > > The {{SlotPool}} releases idling slots. If the release operation fails (e.g. > timeout), then it simply continues using the slot. This is problematic if the > owning {{TaskExecutor}} failed before and was unregistered in the meantime > from the {{SlotPool}}. As a result, the {{SlotPool}} will reuse the slot and > whenever it tries to return because it is idling it will fail again. This, > effectively, renders the scheduling of a job impossible. -- This message was sent by Atlassian JIRA (v7.6.3#76005)