Sai Sandeep created RANGER-3947:
-----------------------------------
Summary: Thread leak because of retry loop in
SolrCollectionBootstrapper
Key: RANGER-3947
URL: https://issues.apache.org/jira/browse/RANGER-3947
Project: Ranger
Issue Type: Bug
Components: admin
Affects Versions: 2.3.0
Reporter: Sai Sandeep
SolrCollectionBootstrapper Tries to connect to solr cloud and tries upload
ranger_audits config and create ranger_audits collection in a loop. We found
that in our case uploadConfiguration keeps on failing and because of that is
stuck in retry loop.
but because of that it calls connect in a loop which creates new solr cloud
client every time. but this solr cloud client is never closed so related
connection pools and zk connections are also never closed. because of this
number of threads keeps increasing until it crashes.
Related code:
{code:java}
while (!is_completed && (max_retry == TRY_UNTIL_SUCCESS || retry_counter <
max_retry)) {
try {
if (connect(zookeeperHosts)) {
if (solr_cloud_mode) {
if (uploadConfiguration() && createCollection()
) {
is_completed = true;
break;
} else {
logErrorMessageAndWait(
"Error while performing operations on solr. ",
null);
}
} } else {
logErrorMessageAndWait(
"Cannot connect to solr kindly check the solr related
configs. ",
null);
}
} catch (Exception ex) {
logErrorMessageAndWait("Error while configuring solr. ", ex);
}
}{code}
I think if we close the solrCloudClient in the loop then it should fix the bug
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