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https://issues.apache.org/jira/browse/AIRFLOW-3527?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16734145#comment-16734145
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ASF GitHub Bot commented on AIRFLOW-3527:
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kaxil commented on pull request #4350: [AIRFLOW-3527] Cloud SQL Proxy has
shorter path for UNIX socket
URL: https://github.com/apache/incubator-airflow/pull/4350
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> Cloud SQL proxy with UNIX sockets might lead to too long socket path
> --------------------------------------------------------------------
>
> Key: AIRFLOW-3527
> URL: https://issues.apache.org/jira/browse/AIRFLOW-3527
> Project: Apache Airflow
> Issue Type: Bug
> Reporter: Jarek Potiuk
> Priority: Major
>
> Currently Cloud SQL Proxy with UNIX sockets creates the proxy dir in
> /tmp/\{UDID1}/folder - which in case of postgres and long instance names
> might lead to too long name of UNIX socket (the path length for socket is
> limited to 108 characters in Linux).
> [http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/sys_un.h.html#tag_13_67_04]
> However in case instance name is long enough that leads to too long path
> (which turns to be fairly short - instance names can often exceed 20-30
> characters) and a cryptic "invalid path name" error. Therefor we need to
> 1) generate the path with shorter random number prefix. 8 characters should
> be random enough + we can check if the generated path did not exist already
> and generate another one if that's the case.
> 2) fail validation in case the generated path is too long and propose a
> solution (shorter names or switching to TCP).
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