honeymoose/OpenSearch
1
0
Fork 0
mirror of https://github.com/honeymoose/OpenSearch.git synced 2025-02-08 22:14:59 +00:00
Code Issues Packages Projects Releases Wiki Activity

Make EC2 Discovery Cache Empty Seed Hosts List (#50607) (#50626)

Browse Source 
Follow up to #50550. Cache empty nodes lists (`fetchDynamicNodes` will return an empty list in case of failure)
now that the plugin properly retries requests to AWS EC2 APIs.
This commit is contained in:
Armin Braun 2020-01-03 21:32:36 +01:00 committed by GitHub
parent a45de8a96b
commit 8819fa4ebe
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 4 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
plugins/discovery-ec2/src/main/java/org/elasticsearch/discovery/ec2/AwsEc2SeedHostsProvider.java
View File

@ -221,22 +221,13 @@ class AwsEc2SeedHostsProvider implements SeedHostsProvider {
private final class TransportAddressesCache extends SingleObjectCache<List<TransportAddress>> { private final class TransportAddressesCache extends SingleObjectCache<List<TransportAddress>> {
private boolean empty = true;
protected TransportAddressesCache(TimeValue refreshInterval) { protected TransportAddressesCache(TimeValue refreshInterval) {
super(refreshInterval, new ArrayList<>()); super(refreshInterval, new ArrayList<>());
} }
@Override
protected boolean needsRefresh() {
return (empty || super.needsRefresh());
}
@Override @Override
protected List<TransportAddress> refresh() { protected List<TransportAddress> refresh() {
final List<TransportAddress> nodes = fetchDynamicNodes(); return fetchDynamicNodes();
empty = nodes.isEmpty();
return nodes;
} }
} }
} }

4
plugins/discovery-ec2/src/test/java/org/elasticsearch/discovery/ec2/Ec2DiscoveryTests.java
View File

@ -306,10 +306,10 @@ public class Ec2DiscoveryTests extends ESTestCase {
return new ArrayList<>(); return new ArrayList<>();
} }
}; };
for (int i=0; i<3; i++) { for (int i = 0; i < 3; i++) {
provider.getSeedAddresses(null); provider.getSeedAddresses(null);
} }
assertThat(provider.fetchCount, is(3)); assertThat(provider.fetchCount, is(1));
} }
public void testGetNodeListCached() throws Exception { public void testGetNodeListCached() throws Exception {