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Offloader: add API to scan objects on Tiered Storage: Move to JAX-RS …
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143 changes: 143 additions & 0 deletions
143
...roker/src/main/java/org/apache/pulsar/broker/admin/impl/OffloaderObjectsScannerUtils.java
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| @@ -0,0 +1,143 @@ | ||
| /** | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, | ||
| * software distributed under the License is distributed on an | ||
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| * KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations | ||
| * under the License. | ||
| */ | ||
| package org.apache.pulsar.broker.admin.impl; | ||
|
|
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| import java.util.HashMap; | ||
| import java.util.Map; | ||
| import java.util.Objects; | ||
| import java.util.TreeMap; | ||
| import java.util.concurrent.atomic.AtomicInteger; | ||
| import lombok.experimental.UtilityClass; | ||
| import lombok.extern.slf4j.Slf4j; | ||
| import org.apache.bookkeeper.mledger.LedgerOffloader; | ||
| import org.apache.bookkeeper.mledger.ManagedLedgerException; | ||
| import org.apache.bookkeeper.mledger.ManagedLedgerFactory; | ||
| import org.apache.bookkeeper.mledger.ManagedLedgerInfo; | ||
|
|
||
| @Slf4j | ||
| @UtilityClass | ||
| public class OffloaderObjectsScannerUtils { | ||
|
|
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| private static final String STATUS_OK = "OK"; | ||
| private static final String STATUS_UNKNOWN = "UNKNOWN"; | ||
| private static final String STATUS_BAD_UUID = "BAD-UUID"; | ||
| private static final String STATUS_NOT_FOUND = "NOT-FOUND"; | ||
| private static final String STATUS_NOT_OFFLOADED = "NOT-OFFLOADED"; | ||
|
|
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| public interface ScannerResultSink { | ||
|
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| void object(Map<String, Object> data) throws Exception; | ||
| void finished(int total, int errors, int unknown) throws Exception; | ||
| } | ||
|
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| static void scanOffloadedLedgers(LedgerOffloader managedLedgerOffloader, | ||
| String localClusterName, | ||
| ManagedLedgerFactory managedLedgerFactory, | ||
| ScannerResultSink sink) throws Exception { | ||
| AtomicInteger totalCount = new AtomicInteger(); | ||
| AtomicInteger totalErrors = new AtomicInteger(); | ||
| AtomicInteger totalUnknown = new AtomicInteger(); | ||
| managedLedgerOffloader.scanLedgers((md -> { | ||
| log.info("Found ledger {}", md); | ||
| Map<String, Object> objectInfo = new HashMap<>(); | ||
| objectInfo.put("ledger", md.getLedgerId()); | ||
| objectInfo.put("name", md.getName()); | ||
| objectInfo.put("uri", md.getUri()); | ||
| objectInfo.put("uuid", md.getUuid()); | ||
| objectInfo.put("size", md.getSize()); | ||
| objectInfo.put("lastModified", md.getLastModified()); | ||
| objectInfo.put("userMetadata", md.getUserMetadata()); | ||
|
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| String status = STATUS_UNKNOWN; | ||
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| if (md.getUserMetadata() != null) { | ||
| // non case sensitive | ||
| TreeMap<String, String> userMetadata = new TreeMap<>(String.CASE_INSENSITIVE_ORDER); | ||
| userMetadata.putAll(md.getUserMetadata()); | ||
| String clusterName = userMetadata.get(LedgerOffloader.METADATA_PULSAR_CLUSTER_NAME); | ||
| if (localClusterName.equals(clusterName)) { | ||
| String managedLedgerName = userMetadata.get("managedledgername"); | ||
| if (managedLedgerName != null) { | ||
| objectInfo.put("managedLedgerName", managedLedgerName); | ||
| try { | ||
| status = checkLedgerShouldBeOnTieredStorage(md.getLedgerId(), md.getUuid(), | ||
| managedLedgerName, objectInfo, managedLedgerFactory); | ||
| } catch (InterruptedException err) { | ||
| Thread.currentThread().interrupt(); | ||
| throw new RuntimeException(err); | ||
| } catch (ManagedLedgerException err) { | ||
| log.error("Error while checking managed ledger {}", managedLedgerName); | ||
| throw new RuntimeException(err); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| totalCount.incrementAndGet(); | ||
| objectInfo.put("status", status); | ||
| switch (status) { | ||
| case STATUS_OK: | ||
| break; | ||
| case STATUS_UNKNOWN: | ||
| totalUnknown.incrementAndGet(); | ||
| break; | ||
| default: | ||
| totalErrors.incrementAndGet(); | ||
| break; | ||
| } | ||
|
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| sink.object(objectInfo); | ||
| return true; | ||
| }), managedLedgerOffloader.getOffloadDriverMetadata()); | ||
|
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| sink.finished(totalCount.get(), totalErrors.get(), totalUnknown.get()); | ||
| } | ||
|
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| private static String checkLedgerShouldBeOnTieredStorage(long ledgerId, String uuid, | ||
| String managedLedgerName, | ||
| Map<String, Object> data, | ||
| ManagedLedgerFactory managedLedgerFactory) | ||
| throws InterruptedException, ManagedLedgerException { | ||
| try { | ||
| ManagedLedgerInfo managedLedgerInfo = managedLedgerFactory.getManagedLedgerInfo(managedLedgerName); | ||
| ManagedLedgerInfo.LedgerInfo ledgerInfo = managedLedgerInfo | ||
| .ledgers.stream().filter(l -> l.ledgerId == ledgerId).findAny().orElse(null); | ||
| if (ledgerInfo == null) { | ||
| log.info("Managed ledger {} does not contain ledger {}", managedLedgerName, ledgerId); | ||
| return STATUS_NOT_FOUND; | ||
| } | ||
| data.put("numEntries", ledgerInfo.entries); | ||
| data.put("offloaded", ledgerInfo.isOffloaded); | ||
| if (!ledgerInfo.isOffloaded) { | ||
| log.info("Ledger {} is not marked as OFFLOADED in {}", ledgerId, managedLedgerName); | ||
| return STATUS_NOT_OFFLOADED; | ||
| } | ||
| String uuidOnMetadata = ledgerInfo.offloadedContextUuid; | ||
| if (!Objects.equals(uuidOnMetadata, uuid)) { | ||
| log.info("Ledger {} uuid {} does not match name uuid {}", ledgerId, uuidOnMetadata, uuid); | ||
| return STATUS_BAD_UUID; | ||
| } | ||
| return "OK"; | ||
| } catch (ManagedLedgerException.ManagedLedgerNotFoundException | ||
| | ManagedLedgerException.MetadataNotFoundException notFound) { | ||
| log.info("Managed ledger {} does not exist (maybe the topic has been deleted)", managedLedgerName); | ||
| return STATUS_NOT_FOUND; | ||
| } | ||
| } | ||
|
|
||
| } |
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