Christine Poerschke created SOLR-6279:
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Summary: cores?action=UNLOAD can unregister unclosed core
Key: SOLR-6279
URL: https://issues.apache.org/jira/browse/SOLR-6279
Project: Solr
Issue Type: Bug
Reporter: Christine Poerschke
baseline:
{code}
/somewhere/instanceA/collection1_shard1/core.properties
/somewhere/instanceA/collection1_shard1/data
/somewhere/instanceA/collection1_shard2/core.properties
/somewhere/instanceA/collection1_shard2/data
/somewhere/instanceB
{code}
actions:
{code}
curl "http://host:port/solr/admin/cores?action=UNLOAD&core=collection1_shard2";
# since UNLOAD completed we should now be free to move the unloaded core's
files as we wish
mv /somewhere/instanceA/collection1_shard2
/somewhere/instanceB/collection1_shard2
{code}
expected result:
{code}
/somewhere/instanceA/collection1_shard1/core.properties
/somewhere/instanceA/collection1_shard1/data
# collection1_shard2 files have been fully relocated
/somewhere/instanceB/collection1_shard2/core.properties.unloaded
/somewhere/instanceB/collection1_shard2/data
{code}
actual result:
{code}
/somewhere/instanceA/collection1_shard1/core.properties
/somewhere/instanceA/collection1_shard1/data
/somewhere/instanceA/collection1_shard2/data
# collection1_shard2 files have not been fully relocated and/or some files
were left behind in instanceA because the UNLOAD action had returned prior to
the core being closed
/somewhere/instanceB/collection1_shard2/core.properties.unloaded
/somewhere/instanceB/collection1_shard2/data
{code}
+proposed fix:+ Changing CoreContainer.unload to wait for core to close before
unregistering it from ZK. Adding testMidUseUnload method to TestLazyCores.
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