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| 1 | <?php |
| 2 | |
| 3 | namespace CirrusSearch\Maintenance; |
| 4 | |
| 5 | use CirrusSearch\SearchConfig; |
| 6 | |
| 7 | /** |
| 8 | * Copy search index from one cluster to another. |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License along |
| 21 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 22 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 23 | * http://www.gnu.org/copyleft/gpl.html |
| 24 | */ |
| 25 | |
| 26 | $IP = getenv( 'MW_INSTALL_PATH' ); |
| 27 | if ( $IP === false ) { |
| 28 | $IP = __DIR__ . '/../../..'; |
| 29 | } |
| 30 | require_once "$IP/maintenance/Maintenance.php"; |
| 31 | require_once __DIR__ . '/../includes/Maintenance/Maintenance.php'; |
| 32 | |
| 33 | /** |
| 34 | * Update the elasticsearch configuration for this index. |
| 35 | */ |
| 36 | class CopySearchIndex extends Maintenance { |
| 37 | /** |
| 38 | * @var string |
| 39 | */ |
| 40 | private $indexSuffix; |
| 41 | |
| 42 | /** |
| 43 | * @var string |
| 44 | */ |
| 45 | private $indexBaseName; |
| 46 | |
| 47 | /** |
| 48 | * @var int |
| 49 | */ |
| 50 | protected $refreshInterval; |
| 51 | |
| 52 | public function __construct() { |
| 53 | parent::__construct(); |
| 54 | $this->addDescription( "Copy index from one cluster to another.\n" . |
| 55 | "The index name and index type should be the same on both clusters." ); |
| 56 | $this->addOption( 'indexSuffix', 'Source index. Either content or general.', true, true ); |
| 57 | $this->addOption( 'targetCluster', 'Target Cluster.', true, true ); |
| 58 | $this->addOption( 'reindexChunkSize', 'Documents per shard to reindex in a batch. ' . |
| 59 | 'Note when changing the number of shards that the old shard size is used, not the new ' . |
| 60 | 'one. If you see many errors submitting documents in bulk but the automatic retry as ' . |
| 61 | 'singles works then lower this number. Defaults to 100.', false, true ); |
| 62 | $this->addOption( 'reindexSlices', 'Number of pieces to slice the scan into, roughly ' . |
| 63 | 'equivilent to concurrency. Defaults to the number of shards', false, true ); |
| 64 | } |
| 65 | |
| 66 | /** @inheritDoc */ |
| 67 | public function execute() { |
| 68 | $this->indexSuffix = $this->getOption( 'indexSuffix' ); |
| 69 | $this->indexBaseName = $this->getOption( 'baseName', |
| 70 | $this->getSearchConfig()->get( SearchConfig::INDEX_BASE_NAME ) ); |
| 71 | |
| 72 | $reindexChunkSize = $this->getOption( 'reindexChunkSize', 100 ); |
| 73 | $targetCluster = $this->getOption( 'targetCluster' ); |
| 74 | $slices = $this->getOption( 'reindexSlices' ); |
| 75 | |
| 76 | $sourceConnection = $this->getConnection(); |
| 77 | $targetConnection = $this->getConnection( $targetCluster ); |
| 78 | |
| 79 | if ( $sourceConnection->getClusterName() == $targetConnection->getClusterName() ) { |
| 80 | $this->fatalError( 'Target cluster should be different from current cluster.' ); |
| 81 | } |
| 82 | |
| 83 | $targetIndexName = $targetConnection->getIndexName( $this->indexBaseName, $this->indexSuffix ); |
| 84 | $utils = new ConfigUtils( $targetConnection->getClient(), $this ); |
| 85 | $indexIdentifier = $this->unwrap( $utils->pickIndexIdentifierFromOption( |
| 86 | $this->getOption( 'indexIdentifier', 'current' ), |
| 87 | $targetIndexName |
| 88 | ) ); |
| 89 | |
| 90 | $reindexer = new Reindexer( |
| 91 | $this->getSearchConfig(), |
| 92 | $sourceConnection, |
| 93 | $targetConnection, |
| 94 | // Target Index |
| 95 | $targetConnection->getIndex( $this->indexBaseName, $this->indexSuffix, $indexIdentifier ), |
| 96 | // Source Index |
| 97 | $this->getConnection()->getIndex( $this->indexBaseName, $this->indexSuffix ), $this, [], [] |
| 98 | ); |
| 99 | $reindexer->reindex( $slices, 1, $reindexChunkSize ); |
| 100 | $reindexer->waitForGreen(); |
| 101 | |
| 102 | return true; |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | $maintClass = CopySearchIndex::class; |
| 107 | require_once RUN_MAINTENANCE_IF_MAIN; |