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  1. Ignite
  2. IGNITE-12530

Pages list caching can cause IgniteOOME when checkpoint is triggered by "too many dirty pages" reason

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: 2.8
    • Fix Version/s: 2.8, 2.9
    • Component/s: persistence
    • Labels:
      None

      Description

      When a checkpoint is triggered, we need some amount of page memory to store pages list on-heap cache.

      If data region is too small, a checkpoint is triggered by "too many dirty pages" reason and pages list cache is rather big, we can get IgniteOutOfMemoryException.

      Reproducer:

      @Override protected IgniteConfiguration getConfiguration(String name) throws Exception {
          IgniteConfiguration cfg = super.getConfiguration(name);
      
          cfg.setDataStorageConfiguration(new DataStorageConfiguration()
              .setDefaultDataRegionConfiguration(new DataRegionConfiguration()
                  .setPersistenceEnabled(true)
                  .setMaxSize(50 * 1024 * 1024)
              ));
      
          return cfg;
      }
      
      @Test
      public void testUpdatesNotFittingIntoMemoryRegion() throws Exception {
          IgniteEx ignite = startGrid(0);
      
          ignite.cluster().active(true);
      
          ignite.getOrCreateCache(DEFAULT_CACHE_NAME);
      
          try (IgniteDataStreamer<Object, Object> streamer = ignite.dataStreamer(DEFAULT_CACHE_NAME)) {
              for (int i = 0; i < 100_000; i++)
                  streamer.addData(i, new byte[i % 2048]);
          }
      }
      

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          Stanilovsky Evgeny
        2. screenshot-2.png
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          Stanilovsky Evgeny

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              • Assignee:
                alex_pl Aleksey Plekhanov
                Reporter:
                alex_pl Aleksey Plekhanov
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                  Updated:
                  Resolved:

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