/**
* Restores shard from {@link RestoreSource} associated with this shard in routing table
*
* @param recoveryState recovery state
*/
public void restore(final RecoveryState recoveryState) {
RestoreSource restoreSource = indexShard.routingEntry().restoreSource();
if (restoreSource == null) {
throw new IndexShardRestoreFailedException(shardId, "empty restore source");
}
if (logger.isTraceEnabled()) {
logger.trace("[{}] restoring shard [{}]", restoreSource.snapshotId(), shardId);
}
try {
recoveryState.getTranslog().totalOperations(0);
recoveryState.getTranslog().totalOperationsOnStart(0);
indexShard.prepareForIndexRecovery();
IndexShardRepository indexShardRepository =
repositoriesService.indexShardRepository(restoreSource.snapshotId().getRepository());
ShardId snapshotShardId = shardId;
if (!shardId.getIndex().equals(restoreSource.index())) {
snapshotShardId = new ShardId(restoreSource.index(), shardId.id());
}
indexShardRepository.restore(
restoreSource.snapshotId(), shardId, snapshotShardId, recoveryState);
indexShard.prepareForTranslogRecovery();
indexShard.finalizeRecovery();
indexShard.postRecovery("restore done");
restoreService.indexShardRestoreCompleted(restoreSource.snapshotId(), shardId);
} catch (Throwable t) {
if (Lucene.isCorruptionException(t)) {
restoreService.failRestore(restoreSource.snapshotId(), shardId());
}
throw new IndexShardRestoreFailedException(shardId, "restore failed", t);
}
}
void assertIndexSanity(String indexName, Version indexCreated) {
GetIndexResponse getIndexResponse =
client().admin().indices().prepareGetIndex().addIndices(indexName).get();
assertEquals(1, getIndexResponse.indices().length);
assertEquals(indexName, getIndexResponse.indices()[0]);
Version actualVersionCreated =
Version.indexCreated(getIndexResponse.getSettings().get(indexName));
assertEquals(indexCreated, actualVersionCreated);
ensureYellow(indexName);
RecoveryResponse recoveryResponse =
client()
.admin()
.indices()
.prepareRecoveries(indexName)
.setDetailed(true)
.setActiveOnly(false)
.get();
boolean foundTranslog = false;
for (List<RecoveryState> states : recoveryResponse.shardRecoveryStates().values()) {
for (RecoveryState state : states) {
if (state.getStage() == RecoveryState.Stage.DONE
&& state.getPrimary()
&& state.getRecoverySource().getType() == RecoverySource.Type.EXISTING_STORE) {
assertFalse("more than one primary recoverd?", foundTranslog);
assertNotEquals(0, state.getTranslog().recoveredOperations());
foundTranslog = true;
}
}
}
assertTrue("expected translog but nothing was recovered", foundTranslog);
IndicesSegmentResponse segmentsResponse =
client().admin().indices().prepareSegments(indexName).get();
IndexSegments segments = segmentsResponse.getIndices().get(indexName);
int numCurrent = 0;
int numBWC = 0;
for (IndexShardSegments indexShardSegments : segments) {
for (ShardSegments shardSegments : indexShardSegments) {
for (Segment segment : shardSegments) {
if (indexCreated.luceneVersion.equals(segment.version)) {
numBWC++;
if (Version.CURRENT.luceneVersion.equals(segment.version)) {
numCurrent++;
}
} else if (Version.CURRENT.luceneVersion.equals(segment.version)) {
numCurrent++;
} else {
fail("unexpected version " + segment.version);
}
}
}
}
assertNotEquals("expected at least 1 current segment after translog recovery", 0, numCurrent);
assertNotEquals("expected at least 1 old segment", 0, numBWC);
SearchResponse test = client().prepareSearch(indexName).get();
assertThat(test.getHits().getTotalHits(), greaterThanOrEqualTo(1L));
}