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SOLR-13486: Fix trivial test bug in TestTlogReplayVsRecovery 

Add TODOs for future test improvements once underlying race condition is fixed in core code
This commit is contained in:
Chris Hostetter 2020-01-11 16:48:05 -07:00
parent 0b072ecedb
commit 9a2497f637
1 changed files with 22 additions and 9 deletions
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29
solr/core/src/test/org/apache/solr/cloud/TestTlogReplayVsRecovery.java
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@ -48,11 +48,10 @@ import org.junit.Before;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@AwaitsFix(bugUrl="https://issues.apache.org/jira/browse/SOLR-13486")
@AwaitsFix(bugUrl="https://issues.apache.org/jira/browse/SOLR-13486;https://issues.apache.org/jira/browse/SOLR-14183")
public class TestTlogReplayVsRecovery extends SolrCloudTestCase {
private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
private static final String COLLECTION = "collecion_with_slow_tlog_recovery";
private JettySolrRunner NODE0;
@ -60,12 +59,16 @@ public class TestTlogReplayVsRecovery extends SolrCloudTestCase {
private Map<JettySolrRunner, SocketProxy> proxies;
private Map<URI, JettySolrRunner> jettys;
@Before
public void setupCluster() throws Exception {
// we want to ensure there is tlog replay on the leader after we restart it,
// so in addition to not committing the docs we add during network partition
// we also want to ensure that our leader doesn't do a "Commit on close"
DirectUpdateHandler2.commitOnClose = false;
//
// TODO: once SOLR-13486 is fixed, we should randomize this...
private static final boolean TEST_VALUE_FOR_COMMIT_ON_CLOSE = false;
@Before
public void setupCluster() throws Exception {
DirectUpdateHandler2.commitOnClose = TEST_VALUE_FOR_COMMIT_ON_CLOSE;
System.setProperty("solr.directoryFactory", "solr.StandardDirectoryFactory");
System.setProperty("solr.ulog.numRecordsToKeep", "1000");
@ -113,6 +116,14 @@ public class TestTlogReplayVsRecovery extends SolrCloudTestCase {
}
public void testManyDocsInTlogReplayWhileReplicaIsTryingToRecover() throws Exception {
// TODO: One the basic problem in SOLR-13486 is fixed, this test can be made more robust by:
// 1) randomizing the number of committedDocs (pre net split) & uncommittedDocs (post net split)
// to trigger diff recovery strategies & shutdown behavior
// 2) replace "committedDocs + uncommittedDocs" with 4 variables:
// a: docs committed before network split (add + commit)
// b: docs not committed before network split (add w/o commit)
// c: docs committed after network split (add + commit)
// d: docs not committed after network split (add w/o commit)
final int committedDocs = 3;
final int uncommittedDocs = 50;
@ -140,8 +151,9 @@ public class TestTlogReplayVsRecovery extends SolrCloudTestCase {
final Replica leader = getCollectionState(COLLECTION).getSlice("shard1").getLeader();
assertEquals("Sanity check failed", NODE0.getNodeName(), leader.getNodeName());
log.info("Add and commit a {} docs...", committedDocs);
log.info("Add and commit {} docs...", committedDocs);
addDocs(true, committedDocs, 1);
assertDocsExistInBothReplicas(1, committedDocs);
log.info("Partition nodes...");
proxies.get(NODE0).close();
@ -151,7 +163,8 @@ public class TestTlogReplayVsRecovery extends SolrCloudTestCase {
addDocs(false, uncommittedDocs, committedDocs + 1);
log.info("Stopping leader node...");
assertEquals("Something broke our expected commitOnClose", false, DirectUpdateHandler2.commitOnClose);
assertEquals("Something broke our expected commitOnClose",
TEST_VALUE_FOR_COMMIT_ON_CLOSE, DirectUpdateHandler2.commitOnClose);
NODE0.stop();
cluster.waitForJettyToStop(NODE0);
@ -188,7 +201,7 @@ public class TestTlogReplayVsRecovery extends SolrCloudTestCase {
cluster.waitForActiveCollection(COLLECTION, 1, 2);
log.info("Check docs on both replicas...");
assertDocsExistInBothReplicas(1, uncommittedDocs + uncommittedDocs);
assertDocsExistInBothReplicas(1, committedDocs + uncommittedDocs);
log.info("Test ok, delete collection...");
CollectionAdminRequest.deleteCollection(COLLECTION).process(cluster.getSolrClient());