/**
* Starts a source cluster with no CDCR configuration, indexes enough documents such that the at
* least one old tlog is closed and thrown away so that the source cluster does not have all
* updates available in tlogs only.
*
* <p>Then we start a target cluster with CDCR configuration and we change the source cluster
* configuration to use CDCR (i.e. CdcrUpdateLog, CdcrRequestHandler and CdcrUpdateProcessor) and
* restart it.
*
* <p>We test that all updates eventually make it to the target cluster and that the
* collectioncheckpoint call returns the same version as the last update indexed on the source.
*/
@Test
public void testConvertClusterToCdcrAndBootstrap() throws Exception {
// start the target first so that we know its zkhost
MiniSolrCloudCluster target =
new MiniSolrCloudCluster(1, createTempDir("cdcr-target"), buildJettyConfig("/solr"));
try {
target.waitForAllNodes(30);
System.out.println("Target zkHost = " + target.getZkServer().getZkAddress());
System.setProperty("cdcr.target.zkHost", target.getZkServer().getZkAddress());
// start a cluster with no cdcr
MiniSolrCloudCluster source =
new MiniSolrCloudCluster(1, createTempDir("cdcr-source"), buildJettyConfig("/solr"));
try {
source.waitForAllNodes(30);
source.uploadConfigSet(configset("cdcr-source-disabled"), "cdcr-source");
// create a collection with the cdcr-source-disabled configset
CollectionAdminRequest.createCollection("cdcr-source", "cdcr-source", 1, 1)
// todo investigate why this is necessary??? because by default it selects a ram
// directory which deletes the tlogs on reloads?
.withProperty("solr.directoryFactory", "solr.StandardDirectoryFactory")
.process(source.getSolrClient());
// index 10000 docs with a hard commit every 1000 documents
CloudSolrClient sourceSolrClient = source.getSolrClient();
sourceSolrClient.setDefaultCollection("cdcr-source");
int numDocs = 0;
for (int k = 0; k < 100; k++) {
UpdateRequest req = new UpdateRequest();
for (; numDocs < (k + 1) * 100; numDocs++) {
SolrInputDocument doc = new SolrInputDocument();
doc.addField("id", "source_" + numDocs);
doc.addField("xyz", numDocs);
req.add(doc);
}
req.setAction(AbstractUpdateRequest.ACTION.COMMIT, true, true);
System.out.println("Adding 100 docs with commit=true, numDocs=" + numDocs);
req.process(sourceSolrClient);
}
QueryResponse response = sourceSolrClient.query(new SolrQuery("*:*"));
assertEquals("", numDocs, response.getResults().getNumFound());
// lets find and keep the maximum version assigned by source cluster across all our updates
long maxVersion = Long.MIN_VALUE;
ModifiableSolrParams params = new ModifiableSolrParams();
params.set(CommonParams.QT, "/get");
params.set("getVersions", numDocs);
response = sourceSolrClient.query(params);
List<Long> versions = (List<Long>) response.getResponse().get("versions");
for (Long version : versions) {
maxVersion = Math.max(maxVersion, version);
}
// upload the cdcr-enabled config and restart source cluster
source.uploadConfigSet(configset("cdcr-source"), "cdcr-source");
JettySolrRunner runner = source.stopJettySolrRunner(0);
source.startJettySolrRunner(runner);
assertTrue(runner.isRunning());
AbstractDistribZkTestBase.waitForRecoveriesToFinish(
"cdcr-source", source.getSolrClient().getZkStateReader(), true, true, 330);
response = sourceSolrClient.query(new SolrQuery("*:*"));
assertEquals(
"Document mismatch on source after restart",
numDocs,
response.getResults().getNumFound());
// setup the target cluster
target.uploadConfigSet(configset("cdcr-target"), "cdcr-target");
CollectionAdminRequest.createCollection("cdcr-target", "cdcr-target", 1, 1)
.process(target.getSolrClient());
CloudSolrClient targetSolrClient = target.getSolrClient();
targetSolrClient.setDefaultCollection("cdcr-target");
Thread.sleep(1000);
cdcrStart(targetSolrClient);
cdcrStart(sourceSolrClient);
response = getCdcrQueue(sourceSolrClient);
System.out.println("Cdcr queue response: " + response.getResponse());
long foundDocs = waitForTargetToSync(numDocs, targetSolrClient);
assertEquals("Document mismatch on target after sync", numDocs, foundDocs);
params = new ModifiableSolrParams();
params.set(CommonParams.ACTION, CdcrParams.CdcrAction.COLLECTIONCHECKPOINT.toString());
params.set(CommonParams.QT, "/cdcr");
response = targetSolrClient.query(params);
Long checkpoint = (Long) response.getResponse().get(CdcrParams.CHECKPOINT);
assertNotNull(checkpoint);
assertEquals(
"COLLECTIONCHECKPOINT from target cluster should have returned the maximum "
+ "version across all updates made to source",
maxVersion,
checkpoint.longValue());
} finally {
source.shutdown();
}
} finally {
target.shutdown();
}
}
public void testBootstrapWithContinousIndexingOnSourceCluster() throws Exception {
// start the target first so that we know its zkhost
MiniSolrCloudCluster target =
new MiniSolrCloudCluster(1, createTempDir("cdcr-target"), buildJettyConfig("/solr"));
target.waitForAllNodes(30);
try {
System.out.println("Target zkHost = " + target.getZkServer().getZkAddress());
System.setProperty("cdcr.target.zkHost", target.getZkServer().getZkAddress());
MiniSolrCloudCluster source =
new MiniSolrCloudCluster(1, createTempDir("cdcr-source"), buildJettyConfig("/solr"));
try {
source.waitForAllNodes(30);
source.uploadConfigSet(configset("cdcr-source"), "cdcr-source");
CollectionAdminRequest.createCollection("cdcr-source", "cdcr-source", 1, 1)
.withProperty("solr.directoryFactory", "solr.StandardDirectoryFactory")
.process(source.getSolrClient());
// index 10000 docs with a hard commit every 1000 documents
CloudSolrClient sourceSolrClient = source.getSolrClient();
sourceSolrClient.setDefaultCollection("cdcr-source");
int numDocs = 0;
for (int k = 0; k < 100; k++) {
UpdateRequest req = new UpdateRequest();
for (; numDocs < (k + 1) * 100; numDocs++) {
SolrInputDocument doc = new SolrInputDocument();
doc.addField("id", "source_" + numDocs);
doc.addField("xyz", numDocs);
req.add(doc);
}
req.setAction(AbstractUpdateRequest.ACTION.COMMIT, true, true);
System.out.println("Adding 100 docs with commit=true, numDocs=" + numDocs);
req.process(sourceSolrClient);
}
QueryResponse response = sourceSolrClient.query(new SolrQuery("*:*"));
assertEquals("", numDocs, response.getResults().getNumFound());
// setup the target cluster
target.uploadConfigSet(configset("cdcr-target"), "cdcr-target");
CollectionAdminRequest.createCollection("cdcr-target", "cdcr-target", 1, 1)
.process(target.getSolrClient());
CloudSolrClient targetSolrClient = target.getSolrClient();
targetSolrClient.setDefaultCollection("cdcr-target");
Thread.sleep(1000);
cdcrStart(targetSolrClient);
cdcrStart(sourceSolrClient);
int c = 0;
for (int k = 0; k < 100; k++) {
UpdateRequest req = new UpdateRequest();
for (; c < (k + 1) * 100; c++, numDocs++) {
SolrInputDocument doc = new SolrInputDocument();
doc.addField("id", "source_" + numDocs);
doc.addField("xyz", numDocs);
req.add(doc);
}
req.setAction(AbstractUpdateRequest.ACTION.COMMIT, true, true);
System.out.println("Adding 100 docs with commit=true, numDocs=" + numDocs);
req.process(sourceSolrClient);
}
response = sourceSolrClient.query(new SolrQuery("*:*"));
assertEquals("", numDocs, response.getResults().getNumFound());
response = getCdcrQueue(sourceSolrClient);
System.out.println("Cdcr queue response: " + response.getResponse());
long foundDocs = waitForTargetToSync(numDocs, targetSolrClient);
assertEquals("Document mismatch on target after sync", numDocs, foundDocs);
} finally {
source.shutdown();
}
} finally {
target.shutdown();
}
}