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Posted to issues-all@impala.apache.org by "Sahil Takiar (Jira)" <ji...@apache.org> on 2019/12/16 21:09:00 UTC
[jira] [Created] (IMPALA-9253) Blacklist additional posix error
codes for failed DataStreamService RPCs
Sahil Takiar created IMPALA-9253:
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Summary: Blacklist additional posix error codes for failed DataStreamService RPCs
Key: IMPALA-9253
URL: https://issues.apache.org/jira/browse/IMPALA-9253
Project: IMPALA
Issue Type: Improvement
Reporter: Sahil Takiar
Filing as a follow up to [IMPALA-9137|http://issues.cloudera.org/browse/IMPALA-9137], [IMPALA-9137|http://issues.cloudera.org/browse/IMPALA-9137] blacklists a node if a RPC fails with specific posix error codes:
* 107 = ENOTCONN: Transport endpoint is not connected
* 108 = ESHUTDOWN: Cannot send after transport endpoint shutdown
* 111 = ECONNREFUSED: Connection refused
These codes were produced by running a query, killing a node running that query, and then seeing what error codes the query failed with.
There may be other error codes that are worth using for node blacklisting as well. One way to come up with more error codes is to use iptables to introduce network faults between Impala processes and see how RPCs fail.
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