Jarek Potiuk created AIRFLOW-3527:
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Summary: 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
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
around 108 characters in Linux).
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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