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  1. Core Server
  2. SERVER-15057

RocksStorage: deadlock when dropping database with indexes

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    • Operating System:
      ALL
    • Steps To Reproduce:
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      run unit test jstests/core/dbcase.js with RocksDB experiment engine.

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      run unit test jstests/core/dbcase.js with RocksDB experiment engine.

      Description

      I saw rocks storage deadlock when trying to acquire RocksEngine::_entryMapMutex twice. Here is the call stack
      ...
      #7 mongo::RocksEngine::getIndexColumnFamily at src/mongo/db/storage/rocks/rocks_engine.cpp:224
      #8 mongo::RocksCollectionCatalogEntry::removeIndex at src/mongo/db/storage/rocks/rocks_collection_catalog_entry.cpp:121
      #9 mongo::RocksEngine::_dropCollection_inlock at src/mongo/db/storage/rocks/rocks_engine.cpp:348
      #10 mongo::RocksEngine::dropDatabase at src/mongo/db/storage/rocks/rocks_engine.cpp:188
      ...
      In dropDatabase(), _entryMapMutex is already acquired but in getIndexColumnFamily() it tries to acquire _entryMapMutex agin.

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          is related to

          Bug - A problem which impairs or prevents the functions of the product. SERVER-15055 rocks: unit testjstests/core/apitest_db.js and jstests/core/batch_write_command_insert.js fail

          • Major - P3 - Major loss of function.
          • Closed

          New Feature - A new feature of the product, which has yet to be developed. SERVER-14352 prototype and implement rocksdb storage engine

          • Major - P3 - Major loss of function.
          • Closed

          Task - A task that needs to be done. SERVER-13635 Clean up the storage abstraction layer

          • Major - P3 - Major loss of function.
          • Closed
          related to

          Bug - A problem which impairs or prevents the functions of the product. SERVER-15085 rocks storage fails when restarting

          • Major - P3 - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. SERVER-15161 RocksCursor::_reverseLocate() Should Seek to Last if can't seek to the key

          • Major - P3 - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. SERVER-15271 rocks engine doesn't return capped information in RocksRecordStore::appendCustomStats()

          • Major - P3 - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-15232 Rocks Storage Engine to support Index Bulk Builder

          • Major - P3 - Major loss of function.
          • Closed
          links to

          Web Link Pull Request #760

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              Assignee:
              kaloian.manassiev Kaloian Manassiev
              Reporter:
              sdong Siying Dong
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                Updated:
                Resolved: