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https://issues.apache.org/jira/browse/TAJO-372?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyunsik Choi updated TAJO-372:
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Attachment: (was: TAJO-372.patch)
> When an exception except for network issues occurs, the operation should not
> be repeated.
> -----------------------------------------------------------------------------------------
>
> Key: TAJO-372
> URL: https://issues.apache.org/jira/browse/TAJO-372
> Project: Tajo
> Issue Type: Bug
> Components: client
> Reporter: Hyunsik Choi
> Assignee: Hyunsik Choi
> Fix For: 0.8-incubating
>
> Attachments: TAJO-372.patch
>
>
> Currently, TajoClient retries failed operations regardless of network issues.
> It causes unnecessary retries as follows:
> {code}
> tajo> select l_shipmode, sum(case when o_orderpriority ='1-URGENT' or
> o_orderpriority ='2-HIGH' then 1 else 0 end) as high_line_count, sum(case
> when o_orderpriority <> '1-URGENT' and o_orderpriority <> '2-HIGH' then 1
> else 0 end) as low_line_count from orders, lineitem where o_orderkey =
> l_orderkey and (l_shipmode = 'MAIL' or l_shipmode = 'SHIP') and l_commitdate
> < l_receiptdate and l_shipdate < l_commitdate and l_receiptdate >=
> '1994-01-01' and l_receiptdate < '1995-01-01' group by l_shipmode order by
> l_shipmode;
> Failed after attempts=3, exceptions:
> org.apache.tajo.catalog.exception.NoSuchTableException: ERROR: relation
> "orders" does not exist
> org.apache.tajo.catalog.exception.NoSuchTableException: ERROR: relation
> "orders" does not exist
> org.apache.tajo.catalog.exception.NoSuchTableException: ERROR: relation
> "orders" does not exist
> {code}
> When the problem is caused by other problems except for network issues, the
> operations should be not retried.
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