shuai.xu created FLINK-7970:
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Summary: SlotPool support batch allocating slots
Key: FLINK-7970
URL: https://issues.apache.org/jira/browse/FLINK-7970
Project: Flink
Issue Type: Improvement
Components: JobManager
Reporter: shuai.xu
Assignee: shuai.xu
Now all slot allocation is one by one from execution to slot pool. If batch
allocate a number of slots to slot pool, then slot pool can assign its cached
slots according to the global slot requests of all executions, so it can make
an optimal matching between slot and execution, this is especially usefully for
failover. For example, it can assign a slot to the execution whose state is
just on the machine when failover.
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