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https://issues.apache.org/jira/browse/IMPALA-4670?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Ho resolved IMPALA-4670.
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Resolution: Fixed
Fix Version/s: Impala 2.11.0
https://github.com/apache/incubator-impala/commit/dd4c6be8e082d4dd42e099e9a03ed23fdae9c13b
IMPALA-4670: Introduces RpcMgr class
This patch introduces a new class, RpcMgr which is the abstraction
layer around KRPC core mechanics. It provides an interface
RegisterService() for various services to register themselves.
Kudu RPC is invoked via an auto-generated interface called proxy.
This change implements an inline wrapper for KRPC client to obtain
a proxy for a particular service exported by remote server.
Last but not least, the RpcMgr will start all registered services
if FLAGS_use_krpc is true. This patch hasn't yet added any service
except for some test services in rpc-mgr-test.
This patch is based on an abandoned patch by Henry Robinson.
Testing done: a new backend test is added to exercise the code
and demonstrate the way to interact with KRPC framework.
Change-Id: I8adb10ae375d7bf945394c38a520f12d29cf7b46
Reviewed-on: http://gerrit.cloudera.org:8080/7901
Reviewed-by: Michael Ho <k...@cloudera.com>
Tested-by: Impala Public Jenkins
> Add RpcMgr to interface between Impala and KRPC library
> -------------------------------------------------------
>
> Key: IMPALA-4670
> URL: https://issues.apache.org/jira/browse/IMPALA-4670
> Project: IMPALA
> Issue Type: Sub-task
> Components: Distributed Exec
> Affects Versions: Impala 2.8.0
> Reporter: Henry Robinson
> Assignee: Michael Ho
> Fix For: Impala 2.11.0
>
>
> Add the necessary abstractions to integrate KRPC into Impala's codebase.
> Particularly, add an {{RpcMgr}} that allows:
> * acceptor threads to be started on a port
> * service (de)registration
> * proxy construction
> This replaces {{ThriftServer}} and {{ThriftClient}} / {{ConnectionCache}} for
> backend services.
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