Houston Putman created SOLR-15711:
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Summary: Fix GCSRepository to follow
BackupRepository.createDirectory API contract
Key: SOLR-15711
URL: https://issues.apache.org/jira/browse/SOLR-15711
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: contrib - GCS Repository
Reporter: Houston Putman
Noticed when doing work for SOLR-15702.
The Solr backup commands call {{BackupRepository.createDirectory}} at various
times, while also checking that the same directory exists (via {{pathExists}})
at different times. The issue here is that during the distributed Backup
commands, (sent to different nodes for each shard), one node might be at the
part of the backup where it is calling {{createDirectory}} when another node is
calling {{pathExists}} for the same directory.
When following the BackupRepository API Spec correctly, this should not be an
issue because {{createDirectory}} should be a no-op when the directory already
exists. However {{GCSRepository}} does not make this check before creating the
directory. This should be an easy fix.
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