Description
Today, the RPC scheduling mechanism is pretty simple: it execute requests in isolated thread-pools based on their priority. In the current implementation, all normal get/put requests are using the same pool. We'd like to add some per-user or per-region level isolation, so that a misbehaved user/region will not saturate the thread-pool and cause DoS to others easily. The idea is similar to FairScheduler in MR. The current scheduling code is not standalone and is mixed with others (Connection#processRequest). The issue is the first step to extract it to an interface, so that people are free to write and test their own implementations.
This patch doesn't make it completely pluggable yet, as some parameters are pass from constructor. This is because HMaster and HRegionServer both use RpcServer and they have different thread-pool size config. Let me know if you have a solution to this.
Attachments
Attachments
Issue Links
- is related to
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HBASE-8836 Separate reader and writer thread pool in RegionServer, so that write throughput will not be impacted when the read load is very high
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- Closed
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