Shammon created FLINK-25318:
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Summary: Improvement of scheduler and execution for Flink OLAP
Key: FLINK-25318
URL: https://issues.apache.org/jira/browse/FLINK-25318
Project: Flink
Issue Type: Improvement
Components: Runtime / Coordination, Runtime / Network
Affects Versions: 1.13.3, 1.12.5, 1.14.0
Reporter: Shammon
We use flink to perform OLAP queries. We launch flink session cluster, submit
batch jobs to the cluster as OLAP queries, and fetch the jobs' results. OLAP
jobs are generally small queries which will finish at the seconds or
milliseconds, and users always submit multiple jobs to the session cluster
concurrently. We found the qps and latency of jobs will be greatly affected
when there're tens jobs are running, even when there's little data in each
query. We will give the result of benchmark for the latest version later.
After discussed with [~xtsong], and thanks for his advice, we create this issue
to trace and manager Flink OLAP related improvements. More users and developers
are welcome and feel free to create Flink OLAP related subtasks here, thanks
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