Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/15868#discussion_r88777989
--- Diff: docs/sql-programming-guide.md ---
@@ -1087,6 +1087,13 @@ the following case-sensitive options:
</tr>
<tr>
+ <td><code>maxConnections</code></td>
+ <td>
+ The number of JDBC connections, which specifies the maximum number
of simultaneous JDBC connections that are allowed. This option applies only to
writing with <code>coalesce<code/> operation if needed. It defaults to the
number of partitions of RDD.
--- End diff --
Thank you for revising that, @srowen ! This looks different from the other
parameter description. This is the whole text, right?
> If set, limits the maximum number of JDBC connections that can be used.
Only applies when writing. It works by limiting the operation's parallelism,
which depends on the input's partition count. If its partition count exceeds
this limit, the operation will coalesce the input to fewer partitions before
writing.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
