Examples with CoreSnapshotMetaData org.apache.solr.core.snapshots.CollectionSnapshotMetaData.CoreSnapshotMetaData used on opensource projects

Example 1 with CoreSnapshotMetaData

use of org.apache.solr.core.snapshots.CollectionSnapshotMetaData.CoreSnapshotMetaData in project lucene-solr by apache.

the class TestSolrCloudSnapshots method testSnapshots.

@Test
public void testSnapshots() throws Exception {
    CloudSolrClient solrClient = cluster.getSolrClient();
    String collectionName = "SolrCloudSnapshots";
    CollectionAdminRequest.Create create = CollectionAdminRequest.createCollection(collectionName, "conf1", NUM_SHARDS, NUM_REPLICAS);
    create.process(solrClient);
    int nDocs = BackupRestoreUtils.indexDocs(cluster.getSolrClient(), collectionName, docsSeed);
    BackupRestoreUtils.verifyDocs(nDocs, solrClient, collectionName);
    String commitName = TestUtil.randomSimpleString(random(), 1, 5);
    // Verify if snapshot creation works with replica failures.
    boolean replicaFailures = usually();
    Optional<String> stoppedCoreName = Optional.empty();
    if (replicaFailures) {
        // Here the assumption is that Solr will spread the replicas uniformly across nodes.
        // If this is not true for some reason, then we will need to add some logic to find a
        // node with a single replica.
        this.cluster.getRandomJetty(random()).stop();
        // Sleep a bit for allowing ZK watch to fire.
        Thread.sleep(5000);
        // Figure out if at-least one replica is "down".
        DocCollection collState = solrClient.getZkStateReader().getClusterState().getCollection(collectionName);
        for (Slice s : collState.getSlices()) {
            for (Replica replica : s.getReplicas()) {
                if (replica.getState() == State.DOWN) {
                    stoppedCoreName = Optional.of(replica.getCoreName());
                }
            }
        }
    }
    int expectedCoresWithSnapshot = stoppedCoreName.isPresent() ? (NUM_SHARDS * NUM_REPLICAS) - 1 : (NUM_SHARDS * NUM_REPLICAS);
    CollectionAdminRequest.CreateSnapshot createSnap = new CollectionAdminRequest.CreateSnapshot(collectionName, commitName);
    createSnap.process(solrClient);
    Collection<CollectionSnapshotMetaData> collectionSnaps = listCollectionSnapshots(solrClient, collectionName);
    assertEquals(1, collectionSnaps.size());
    CollectionSnapshotMetaData meta = collectionSnaps.iterator().next();
    assertEquals(commitName, meta.getName());
    assertEquals(CollectionSnapshotMetaData.SnapshotStatus.Successful, meta.getStatus());
    assertEquals(expectedCoresWithSnapshot, meta.getReplicaSnapshots().size());
    Map<String, CoreSnapshotMetaData> snapshotByCoreName = meta.getReplicaSnapshots().stream().collect(Collectors.toMap(CoreSnapshotMetaData::getCoreName, Function.identity()));
    DocCollection collectionState = solrClient.getZkStateReader().getClusterState().getCollection(collectionName);
    assertEquals(2, collectionState.getActiveSlices().size());
    for (Slice shard : collectionState.getActiveSlices()) {
        assertEquals(2, shard.getReplicas().size());
        for (Replica replica : shard.getReplicas()) {
            if (stoppedCoreName.isPresent() && stoppedCoreName.get().equals(replica.getCoreName())) {
                // We know that the snapshot is not created for this replica.
                continue;
            }
            String replicaBaseUrl = replica.getStr(BASE_URL_PROP);
            String coreName = replica.getStr(ZkStateReader.CORE_NAME_PROP);
            assertTrue(snapshotByCoreName.containsKey(coreName));
            CoreSnapshotMetaData coreSnapshot = snapshotByCoreName.get(coreName);
            try (SolrClient adminClient = getHttpSolrClient(replicaBaseUrl)) {
                Collection<SnapshotMetaData> snapshots = listCoreSnapshots(adminClient, coreName);
                Optional<SnapshotMetaData> metaData = snapshots.stream().filter(x -> commitName.equals(x.getName())).findFirst();
                assertTrue("Snapshot not created for core " + coreName, metaData.isPresent());
                assertEquals(coreSnapshot.getIndexDirPath(), metaData.get().getIndexDirPath());
                assertEquals(coreSnapshot.getGenerationNumber(), metaData.get().getGenerationNumber());
            }
        }
    }
    // Delete all documents.
    {
        solrClient.deleteByQuery(collectionName, "*:*");
        solrClient.commit(collectionName);
        BackupRestoreUtils.verifyDocs(0, solrClient, collectionName);
    }
    String backupLocation = createTempDir().toFile().getAbsolutePath();
    String backupName = "mytestbackup";
    String restoreCollectionName = collectionName + "_restored";
    //Create a backup using the earlier created snapshot.
    {
        CollectionAdminRequest.Backup backup = CollectionAdminRequest.backupCollection(collectionName, backupName).setLocation(backupLocation).setCommitName(commitName);
        if (random().nextBoolean()) {
            assertEquals(0, backup.process(solrClient).getStatus());
        } else {
            //async
            assertEquals(RequestStatusState.COMPLETED, backup.processAndWait(solrClient, 30));
        }
    }
    // Restore backup.
    {
        CollectionAdminRequest.Restore restore = CollectionAdminRequest.restoreCollection(restoreCollectionName, backupName).setLocation(backupLocation);
        if (replicaFailures) {
            // In this case one of the Solr servers would be down. Hence we need to increase
            // max_shards_per_node property for restore command to succeed.
            restore.setMaxShardsPerNode(2);
        }
        if (random().nextBoolean()) {
            assertEquals(0, restore.process(solrClient).getStatus());
        } else {
            //async
            assertEquals(RequestStatusState.COMPLETED, restore.processAndWait(solrClient, 30));
        }
        AbstractDistribZkTestBase.waitForRecoveriesToFinish(restoreCollectionName, cluster.getSolrClient().getZkStateReader(), log.isDebugEnabled(), true, 30);
        BackupRestoreUtils.verifyDocs(nDocs, solrClient, restoreCollectionName);
    }
    // Verify if the snapshot deletion works correctly when one or more replicas containing the snapshot are
    // deleted
    boolean replicaDeletion = rarely();
    if (replicaDeletion) {
        CoreSnapshotMetaData replicaToDelete = null;
        for (String shardId : meta.getShards()) {
            List<CoreSnapshotMetaData> replicas = meta.getReplicaSnapshotsForShard(shardId);
            if (replicas.size() > 1) {
                int r_index = random().nextInt(replicas.size());
                replicaToDelete = replicas.get(r_index);
            }
        }
        if (replicaToDelete != null) {
            collectionState = solrClient.getZkStateReader().getClusterState().getCollection(collectionName);
            for (Slice s : collectionState.getSlices()) {
                for (Replica r : s.getReplicas()) {
                    if (r.getCoreName().equals(replicaToDelete.getCoreName())) {
                        log.info("Deleting replica {}", r);
                        CollectionAdminRequest.DeleteReplica delReplica = CollectionAdminRequest.deleteReplica(collectionName, replicaToDelete.getShardId(), r.getName());
                        delReplica.process(solrClient);
                        // The replica deletion will cleanup the snapshot meta-data.
                        snapshotByCoreName.remove(r.getCoreName());
                        break;
                    }
                }
            }
        }
    }
    // Delete snapshot
    CollectionAdminRequest.DeleteSnapshot deleteSnap = new CollectionAdminRequest.DeleteSnapshot(collectionName, commitName);
    deleteSnap.process(solrClient);
    // Wait for a while so that the clusterstate.json updates are propagated to the client side.
    Thread.sleep(2000);
    collectionState = solrClient.getZkStateReader().getClusterState().getCollection(collectionName);
    for (Slice shard : collectionState.getActiveSlices()) {
        for (Replica replica : shard.getReplicas()) {
            if (stoppedCoreName.isPresent() && stoppedCoreName.get().equals(replica.getCoreName())) {
                // We know that the snapshot was not created for this replica.
                continue;
            }
            String replicaBaseUrl = replica.getStr(BASE_URL_PROP);
            String coreName = replica.getStr(ZkStateReader.CORE_NAME_PROP);
            try (SolrClient adminClient = getHttpSolrClient(replicaBaseUrl)) {
                Collection<SnapshotMetaData> snapshots = listCoreSnapshots(adminClient, coreName);
                Optional<SnapshotMetaData> metaData = snapshots.stream().filter(x -> commitName.equals(x.getName())).findFirst();
                assertFalse("Snapshot not deleted for core " + coreName, metaData.isPresent());
                // Remove the entry for core if the snapshot is deleted successfully.
                snapshotByCoreName.remove(coreName);
            }
        }
    }
    // Verify all core-level snapshots are deleted.
    assertTrue("The cores remaining " + snapshotByCoreName, snapshotByCoreName.isEmpty());
    assertTrue(listCollectionSnapshots(solrClient, collectionName).isEmpty());
    // Verify if the collection deletion result in proper cleanup of snapshot metadata.
    {
        String commitName_2 = commitName + "_2";
        CollectionAdminRequest.CreateSnapshot createSnap_2 = new CollectionAdminRequest.CreateSnapshot(collectionName, commitName_2);
        assertEquals(0, createSnap_2.process(solrClient).getStatus());
        Collection<CollectionSnapshotMetaData> collectionSnaps_2 = listCollectionSnapshots(solrClient, collectionName);
        assertEquals(1, collectionSnaps.size());
        assertEquals(commitName_2, collectionSnaps_2.iterator().next().getName());
        // Delete collection
        CollectionAdminRequest.Delete deleteCol = CollectionAdminRequest.deleteCollection(collectionName);
        assertEquals(0, deleteCol.process(solrClient).getStatus());
        assertTrue(SolrSnapshotManager.listSnapshots(solrClient.getZkStateReader().getZkClient(), collectionName).isEmpty());
    }
}

Example 2 with CoreSnapshotMetaData

use of org.apache.solr.core.snapshots.CollectionSnapshotMetaData.CoreSnapshotMetaData in project lucene-solr by apache.

the class BackupCmd method selectReplicaWithSnapshot.

private Replica selectReplicaWithSnapshot(CollectionSnapshotMetaData snapshotMeta, Slice slice) {
    // The goal here is to choose the snapshot of the replica which was the leader at the time snapshot was created.
    // If that is not possible, we choose any other replica for the given shard.
    Collection<CoreSnapshotMetaData> snapshots = snapshotMeta.getReplicaSnapshotsForShard(slice.getName());
    Optional<CoreSnapshotMetaData> leaderCore = snapshots.stream().filter(x -> x.isLeader()).findFirst();
    if (leaderCore.isPresent()) {
        log.info("Replica {} was the leader when snapshot {} was created.", leaderCore.get().getCoreName(), snapshotMeta.getName());
        Replica r = slice.getReplica(leaderCore.get().getCoreName());
        if ((r != null) && !r.getState().equals(State.DOWN)) {
            return r;
        }
    }
    Optional<Replica> r = slice.getReplicas().stream().filter(x -> x.getState() != State.DOWN && snapshotMeta.isSnapshotExists(slice.getName(), x)).findFirst();
    if (!r.isPresent()) {
        throw new SolrException(ErrorCode.SERVER_ERROR, "Unable to find any live replica with a snapshot named " + snapshotMeta.getName() + " for shard " + slice.getName());
    }
    return r.get();
}

Example 3 with CoreSnapshotMetaData

use of org.apache.solr.core.snapshots.CollectionSnapshotMetaData.CoreSnapshotMetaData in project lucene-solr by apache.

the class DeleteSnapshotCmd method call.

@Override
public void call(ClusterState state, ZkNodeProps message, NamedList results) throws Exception {
    String collectionName = message.getStr(COLLECTION_PROP);
    String commitName = message.getStr(CoreAdminParams.COMMIT_NAME);
    String asyncId = message.getStr(ASYNC);
    Map<String, String> requestMap = new HashMap<>();
    NamedList shardRequestResults = new NamedList();
    ShardHandler shardHandler = ocmh.shardHandlerFactory.getShardHandler();
    SolrZkClient zkClient = ocmh.overseer.getZkController().getZkClient();
    Optional<CollectionSnapshotMetaData> meta = SolrSnapshotManager.getCollectionLevelSnapshot(zkClient, collectionName, commitName);
    if (!meta.isPresent()) {
        // Snapshot not found. Nothing to do.
        return;
    }
    log.info("Deleting a snapshot for collection={} with commitName={}", collectionName, commitName);
    Set<String> existingCores = new HashSet<>();
    for (Slice s : ocmh.zkStateReader.getClusterState().getCollection(collectionName).getSlices()) {
        for (Replica r : s.getReplicas()) {
            existingCores.add(r.getCoreName());
        }
    }
    Set<String> coresWithSnapshot = new HashSet<>();
    for (CoreSnapshotMetaData m : meta.get().getReplicaSnapshots()) {
        if (existingCores.contains(m.getCoreName())) {
            coresWithSnapshot.add(m.getCoreName());
        }
    }
    log.info("Existing cores with snapshot for collection={} are {}", collectionName, existingCores);
    for (Slice slice : ocmh.zkStateReader.getClusterState().getCollection(collectionName).getSlices()) {
        for (Replica replica : slice.getReplicas()) {
            if (replica.getState() == State.DOWN) {
                // Since replica is down - no point sending a request.
                continue;
            }
            // replicas to contact at this point, we try on all replicas.
            if (meta.get().getStatus() == SnapshotStatus.InProgress || coresWithSnapshot.contains(replica.getCoreName())) {
                String coreName = replica.getStr(CORE_NAME_PROP);
                ModifiableSolrParams params = new ModifiableSolrParams();
                params.set(CoreAdminParams.ACTION, CoreAdminAction.DELETESNAPSHOT.toString());
                params.set(NAME, slice.getName());
                params.set(CORE_NAME_PROP, coreName);
                params.set(CoreAdminParams.COMMIT_NAME, commitName);
                log.info("Sending deletesnapshot request to core={} with commitName={}", coreName, commitName);
                ocmh.sendShardRequest(replica.getNodeName(), params, shardHandler, asyncId, requestMap);
            }
        }
    }
    ocmh.processResponses(shardRequestResults, shardHandler, false, null, asyncId, requestMap);
    NamedList success = (NamedList) shardRequestResults.get("success");
    List<CoreSnapshotMetaData> replicas = new ArrayList<>();
    if (success != null) {
        for (int i = 0; i < success.size(); i++) {
            NamedList resp = (NamedList) success.getVal(i);
            // Unfortunately async processing logic doesn't provide the "core" name automatically.
            String coreName = (String) resp.get("core");
            coresWithSnapshot.remove(coreName);
        }
    }
    if (!coresWithSnapshot.isEmpty()) {
        // One or more failures.
        log.warn("Failed to delete a snapshot for collection {} with commitName = {}. Snapshot could not be deleted for following cores {}", collectionName, commitName, coresWithSnapshot);
        List<CoreSnapshotMetaData> replicasWithSnapshot = new ArrayList<>();
        for (CoreSnapshotMetaData m : meta.get().getReplicaSnapshots()) {
            if (coresWithSnapshot.contains(m.getCoreName())) {
                replicasWithSnapshot.add(m);
            }
        }
        // Update the ZK meta-data to include only cores with the snapshot. This will enable users to figure out
        // which cores still contain the named snapshot.
        CollectionSnapshotMetaData newResult = new CollectionSnapshotMetaData(meta.get().getName(), SnapshotStatus.Failed, meta.get().getCreationDate(), replicasWithSnapshot);
        SolrSnapshotManager.updateCollectionLevelSnapshot(zkClient, collectionName, newResult);
        log.info("Saved snapshot information for collection={} with commitName={} in Zookeeper as follows", collectionName, commitName, Utils.toJSON(newResult));
        throw new SolrException(ErrorCode.SERVER_ERROR, "Failed to delete snapshot on cores " + coresWithSnapshot);
    } else {
        // Delete the ZK path so that we eliminate the references of this snapshot from collection level meta-data.
        SolrSnapshotManager.deleteCollectionLevelSnapshot(zkClient, collectionName, commitName);
        log.info("Deleted Zookeeper snapshot metdata for collection={} with commitName={}", collectionName, commitName);
        log.info("Successfully deleted snapshot for collection={} with commitName={}", collectionName, commitName);
    }
}

Example 4 with CoreSnapshotMetaData

use of org.apache.solr.core.snapshots.CollectionSnapshotMetaData.CoreSnapshotMetaData in project lucene-solr by apache.

the class SolrSnapshotsTool method getIndexFilesPathForSnapshot.

public Map<String, List<String>> getIndexFilesPathForSnapshot(String collectionName, String snapshotName, Optional<String> pathPrefix) throws SolrServerException, IOException {
    Map<String, List<String>> result = new HashMap<>();
    Collection<CollectionSnapshotMetaData> snaps = listCollectionSnapshots(collectionName);
    Optional<CollectionSnapshotMetaData> meta = Optional.empty();
    for (CollectionSnapshotMetaData m : snaps) {
        if (snapshotName.equals(m.getName())) {
            meta = Optional.of(m);
        }
    }
    if (!meta.isPresent()) {
        throw new IllegalArgumentException("The snapshot named " + snapshotName + " is not found for collection " + collectionName);
    }
    DocCollection collectionState = solrClient.getZkStateReader().getClusterState().getCollection(collectionName);
    for (Slice s : collectionState.getSlices()) {
        List<CoreSnapshotMetaData> replicaSnaps = meta.get().getReplicaSnapshotsForShard(s.getName());
        // Prepare a list of *existing* replicas (since one or more replicas could have been deleted after the snapshot creation).
        List<CoreSnapshotMetaData> availableReplicas = new ArrayList<>();
        for (CoreSnapshotMetaData m : replicaSnaps) {
            if (isReplicaAvailable(s, m.getCoreName())) {
                availableReplicas.add(m);
            }
        }
        if (availableReplicas.isEmpty()) {
            throw new IllegalArgumentException("The snapshot named " + snapshotName + " not found for shard " + s.getName() + " of collection " + collectionName);
        }
        // Prefer a leader replica (at the time when the snapshot was created).
        CoreSnapshotMetaData coreSnap = availableReplicas.get(0);
        for (CoreSnapshotMetaData m : availableReplicas) {
            if (m.isLeader()) {
                coreSnap = m;
            }
        }
        String indexDirPath = coreSnap.getIndexDirPath();
        if (pathPrefix.isPresent()) {
            // If the path prefix is specified, rebuild the path to the index directory.
            Path t = new Path(coreSnap.getIndexDirPath());
            indexDirPath = (new Path(pathPrefix.get(), t.toUri().getPath())).toString();
        }
        List<String> paths = new ArrayList<>();
        for (String fileName : coreSnap.getFiles()) {
            Path p = new Path(indexDirPath, fileName);
            paths.add(p.toString());
        }
        result.put(s.getName(), paths);
    }
    return result;
}

Example 5 with CoreSnapshotMetaData

use of org.apache.solr.core.snapshots.CollectionSnapshotMetaData.CoreSnapshotMetaData in project lucene-solr by apache.

the class CreateSnapshotCmd method call.

@Override
public void call(ClusterState state, ZkNodeProps message, NamedList results) throws Exception {
    String collectionName = message.getStr(COLLECTION_PROP);
    String commitName = message.getStr(CoreAdminParams.COMMIT_NAME);
    String asyncId = message.getStr(ASYNC);
    SolrZkClient zkClient = this.ocmh.overseer.getZkController().getZkClient();
    Date creationDate = new Date();
    if (SolrSnapshotManager.snapshotExists(zkClient, collectionName, commitName)) {
        throw new SolrException(ErrorCode.BAD_REQUEST, "Snapshot with name " + commitName + " already exists for collection " + collectionName);
    }
    log.info("Creating a snapshot for collection={} with commitName={}", collectionName, commitName);
    // Create a node in ZK to store the collection level snapshot meta-data.
    SolrSnapshotManager.createCollectionLevelSnapshot(zkClient, collectionName, new CollectionSnapshotMetaData(commitName));
    log.info("Created a ZK path to store snapshot information for collection={} with commitName={}", collectionName, commitName);
    Map<String, String> requestMap = new HashMap<>();
    NamedList shardRequestResults = new NamedList();
    Map<String, Slice> shardByCoreName = new HashMap<>();
    ShardHandler shardHandler = ocmh.shardHandlerFactory.getShardHandler();
    for (Slice slice : ocmh.zkStateReader.getClusterState().getCollection(collectionName).getSlices()) {
        for (Replica replica : slice.getReplicas()) {
            if (replica.getState() != State.ACTIVE) {
                log.info("Replica {} is not active. Hence not sending the createsnapshot request", replica.getCoreName());
                // Since replica is not active - no point sending a request.
                continue;
            }
            String coreName = replica.getStr(CORE_NAME_PROP);
            ModifiableSolrParams params = new ModifiableSolrParams();
            params.set(CoreAdminParams.ACTION, CoreAdminAction.CREATESNAPSHOT.toString());
            params.set(NAME, slice.getName());
            params.set(CORE_NAME_PROP, coreName);
            params.set(CoreAdminParams.COMMIT_NAME, commitName);
            ocmh.sendShardRequest(replica.getNodeName(), params, shardHandler, asyncId, requestMap);
            log.debug("Sent createsnapshot request to core={} with commitName={}", coreName, commitName);
            shardByCoreName.put(coreName, slice);
        }
    }
    // At this point we want to make sure that at-least one replica for every shard
    // is able to create the snapshot. If that is not the case, then we fail the request.
    // This is to take care of the situation where e.g. entire shard is unavailable.
    Set<String> failedShards = new HashSet<>();
    ocmh.processResponses(shardRequestResults, shardHandler, false, null, asyncId, requestMap);
    NamedList success = (NamedList) shardRequestResults.get("success");
    List<CoreSnapshotMetaData> replicas = new ArrayList<>();
    if (success != null) {
        for (int i = 0; i < success.size(); i++) {
            NamedList resp = (NamedList) success.getVal(i);
            // Check if this core is the leader for the shard. The idea here is that during the backup
            // operation we preferably use the snapshot of the "leader" replica since it is most likely
            // to have latest state.
            String coreName = (String) resp.get(CoreAdminParams.CORE);
            Slice slice = shardByCoreName.remove(coreName);
            boolean leader = (slice.getLeader() != null && slice.getLeader().getCoreName().equals(coreName));
            resp.add(SolrSnapshotManager.SHARD_ID, slice.getName());
            resp.add(SolrSnapshotManager.LEADER, leader);
            CoreSnapshotMetaData c = new CoreSnapshotMetaData(resp);
            replicas.add(c);
            log.info("Snapshot with commitName {} is created successfully for core {}", commitName, c.getCoreName());
        }
    }
    if (!shardByCoreName.isEmpty()) {
        // One or more failures.
        log.warn("Unable to create a snapshot with name {} for following cores {}", commitName, shardByCoreName.keySet());
        // Count number of failures per shard.
        Map<String, Integer> failuresByShardId = new HashMap<>();
        for (Map.Entry<String, Slice> entry : shardByCoreName.entrySet()) {
            int f = 0;
            if (failuresByShardId.get(entry.getValue().getName()) != null) {
                f = failuresByShardId.get(entry.getValue().getName());
            }
            failuresByShardId.put(entry.getValue().getName(), f + 1);
        }
        // Now that we know number of failures per shard, we can figure out
        // if at-least one replica per shard was able to create a snapshot or not.
        DocCollection collectionStatus = ocmh.zkStateReader.getClusterState().getCollection(collectionName);
        for (Map.Entry<String, Integer> entry : failuresByShardId.entrySet()) {
            int replicaCount = collectionStatus.getSlice(entry.getKey()).getReplicas().size();
            if (replicaCount <= entry.getValue()) {
                failedShards.add(entry.getKey());
            }
        }
    }
    if (failedShards.isEmpty()) {
        // No failures.
        CollectionSnapshotMetaData meta = new CollectionSnapshotMetaData(commitName, SnapshotStatus.Successful, creationDate, replicas);
        SolrSnapshotManager.updateCollectionLevelSnapshot(zkClient, collectionName, meta);
        log.info("Saved following snapshot information for collection={} with commitName={} in Zookeeper : {}", collectionName, commitName, meta.toNamedList());
    } else {
        log.warn("Failed to create a snapshot for collection {} with commitName = {}. Snapshot could not be captured for following shards {}", collectionName, commitName, failedShards);
        // Update the ZK meta-data to include only cores with the snapshot. This will enable users to figure out
        // which cores have the named snapshot.
        CollectionSnapshotMetaData meta = new CollectionSnapshotMetaData(commitName, SnapshotStatus.Failed, creationDate, replicas);
        SolrSnapshotManager.updateCollectionLevelSnapshot(zkClient, collectionName, meta);
        log.info("Saved following snapshot information for collection={} with commitName={} in Zookeeper : {}", collectionName, commitName, meta.toNamedList());
        throw new SolrException(ErrorCode.SERVER_ERROR, "Failed to create snapshot on shards " + failedShards);
    }
}