public void testReplicaToPrimaryPromotion() throws Exception {
Path dataPath = createTempDir();
Settings nodeSettings = nodeSettings(dataPath);
String node1 = internalCluster().startNode(nodeSettings);
String IDX = "test";
Settings idxSettings =
Settings.builder()
.put(IndexMetaData.SETTING_NUMBER_OF_SHARDS, 1)
.put(IndexMetaData.SETTING_NUMBER_OF_REPLICAS, 1)
.put(IndexMetaData.SETTING_DATA_PATH, dataPath.toAbsolutePath().toString())
.put(IndexMetaData.SETTING_SHADOW_REPLICAS, true)
.put(IndexMetaData.SETTING_SHARED_FILESYSTEM, true)
.build();
prepareCreate(IDX).setSettings(idxSettings).addMapping("doc", "foo", "type=text").get();
client().prepareIndex(IDX, "doc", "1").setSource("foo", "bar").get();
client().prepareIndex(IDX, "doc", "2").setSource("foo", "bar").get();
GetResponse gResp1 = client().prepareGet(IDX, "doc", "1").get();
GetResponse gResp2 = client().prepareGet(IDX, "doc", "2").get();
assertTrue(gResp1.isExists());
assertTrue(gResp2.isExists());
assertThat(gResp1.getSource().get("foo"), equalTo("bar"));
assertThat(gResp2.getSource().get("foo"), equalTo("bar"));
// Node1 has the primary, now node2 has the replica
String node2 = internalCluster().startNode(nodeSettings);
ensureGreen(IDX);
client().admin().cluster().prepareHealth().setWaitForNodes("2").get();
flushAndRefresh(IDX);
logger.info("--> stopping node1 [{}]", node1);
internalCluster().stopRandomNode(InternalTestCluster.nameFilter(node1));
ensureYellow(IDX);
logger.info("--> performing query");
SearchResponse resp = client().prepareSearch(IDX).setQuery(matchAllQuery()).get();
assertHitCount(resp, 2);
gResp1 = client().prepareGet(IDX, "doc", "1").get();
gResp2 = client().prepareGet(IDX, "doc", "2").get();
assertTrue(gResp1.isExists());
assertTrue(gResp2.toString(), gResp2.isExists());
assertThat(gResp1.getSource().get("foo"), equalTo("bar"));
assertThat(gResp2.getSource().get("foo"), equalTo("bar"));
client().prepareIndex(IDX, "doc", "1").setSource("foo", "foobar").get();
client().prepareIndex(IDX, "doc", "2").setSource("foo", "foobar").get();
gResp1 = client().prepareGet(IDX, "doc", "1").get();
gResp2 = client().prepareGet(IDX, "doc", "2").get();
assertTrue(gResp1.isExists());
assertTrue(gResp2.toString(), gResp2.isExists());
assertThat(gResp1.getSource().get("foo"), equalTo("foobar"));
assertThat(gResp2.getSource().get("foo"), equalTo("foobar"));
}
public void testPrimaryRelocation() throws Exception {
Path dataPath = createTempDir();
Settings nodeSettings = nodeSettings(dataPath);
String node1 = internalCluster().startNode(nodeSettings);
String IDX = "test";
Settings idxSettings =
Settings.builder()
.put(IndexMetaData.SETTING_NUMBER_OF_SHARDS, 1)
.put(IndexMetaData.SETTING_NUMBER_OF_REPLICAS, 1)
.put(IndexMetaData.SETTING_DATA_PATH, dataPath.toAbsolutePath().toString())
.put(IndexMetaData.SETTING_SHADOW_REPLICAS, true)
.put(IndexMetaData.SETTING_SHARED_FILESYSTEM, true)
.build();
prepareCreate(IDX).setSettings(idxSettings).addMapping("doc", "foo", "type=text").get();
client().prepareIndex(IDX, "doc", "1").setSource("foo", "bar").get();
client().prepareIndex(IDX, "doc", "2").setSource("foo", "bar").get();
GetResponse gResp1 = client().prepareGet(IDX, "doc", "1").get();
GetResponse gResp2 = client().prepareGet(IDX, "doc", "2").get();
assertTrue(gResp1.isExists());
assertTrue(gResp2.isExists());
assertThat(gResp1.getSource().get("foo"), equalTo("bar"));
assertThat(gResp2.getSource().get("foo"), equalTo("bar"));
// Node1 has the primary, now node2 has the replica
String node2 = internalCluster().startNode(nodeSettings);
ensureGreen(IDX);
client().admin().cluster().prepareHealth().setWaitForNodes("2").get();
flushAndRefresh(IDX);
// now prevent primary from being allocated on node 1 move to node_3
String node3 = internalCluster().startNode(nodeSettings);
Settings build =
Settings.builder().put("index.routing.allocation.exclude._name", node1).build();
client().admin().indices().prepareUpdateSettings(IDX).setSettings(build).execute().actionGet();
ensureGreen(IDX);
logger.info("--> performing query");
SearchResponse resp = client().prepareSearch(IDX).setQuery(matchAllQuery()).get();
assertHitCount(resp, 2);
gResp1 = client().prepareGet(IDX, "doc", "1").get();
gResp2 = client().prepareGet(IDX, "doc", "2").get();
assertTrue(gResp1.isExists());
assertTrue(gResp2.toString(), gResp2.isExists());
assertThat(gResp1.getSource().get("foo"), equalTo("bar"));
assertThat(gResp2.getSource().get("foo"), equalTo("bar"));
client().prepareIndex(IDX, "doc", "3").setSource("foo", "bar").get();
client().prepareIndex(IDX, "doc", "4").setSource("foo", "bar").get();
gResp1 = client().prepareGet(IDX, "doc", "3").setPreference("_primary").get();
gResp2 = client().prepareGet(IDX, "doc", "4").setPreference("_primary").get();
assertTrue(gResp1.isExists());
assertTrue(gResp2.isExists());
assertThat(gResp1.getSource().get("foo"), equalTo("bar"));
assertThat(gResp2.getSource().get("foo"), equalTo("bar"));
}