Examples with CachePagesListView org.apache.ignite.spi.systemview.view.CachePagesListView used on opensource projects

Example 1 with CachePagesListView

use of org.apache.ignite.spi.systemview.view.CachePagesListView in project ignite by apache.

the class SystemViewSelfTest method testPagesList.

/**
 */
@Test
public void testPagesList() throws Exception {
    cleanPersistenceDir();
    try (IgniteEx ignite = startGrid(getConfiguration().setDataStorageConfiguration(new DataStorageConfiguration().setDataRegionConfigurations(new DataRegionConfiguration().setName("dr0").setMaxSize(100L * 1024 * 1024), new DataRegionConfiguration().setName("dr1").setMaxSize(100L * 1024 * 1024).setPersistenceEnabled(true))))) {
        ignite.cluster().active(true);
        GridCacheDatabaseSharedManager dbMgr = (GridCacheDatabaseSharedManager) ignite.context().cache().context().database();
        int pageSize = dbMgr.pageSize();
        dbMgr.enableCheckpoints(false).get();
        for (int i = 0; i < 2; i++) {
            IgniteCache<Object, Object> cache = ignite.getOrCreateCache(new CacheConfiguration<>("cache" + i).setDataRegionName("dr" + i).setAffinity(new RendezvousAffinityFunction().setPartitions(2)));
            int key = 0;
            // Fill up different free-list buckets.
            for (int j = 0; j < pageSize / 2; j++) cache.put(key++, new byte[j + 1]);
            // Put some pages to one bucket to overflow pages cache.
            for (int j = 0; j < 1000; j++) cache.put(key++, new byte[pageSize / 2]);
        }
        long dr0flPages = 0;
        int dr0flStripes = 0;
        SystemView<PagesListView> dataRegionPageLists = ignite.context().systemView().view(DATA_REGION_PAGE_LIST_VIEW);
        for (PagesListView pagesListView : dataRegionPageLists) {
            if (pagesListView.name().startsWith("dr0")) {
                dr0flPages += pagesListView.bucketSize();
                dr0flStripes += pagesListView.stripesCount();
            }
        }
        assertTrue(dr0flPages > 0);
        assertTrue(dr0flStripes > 0);
        SystemView<CachePagesListView> cacheGrpPageLists = ignite.context().systemView().view(CACHE_GRP_PAGE_LIST_VIEW);
        long dr1flPages = 0;
        int dr1flStripes = 0;
        int dr1flCached = 0;
        for (CachePagesListView pagesListView : cacheGrpPageLists) {
            if (pagesListView.cacheGroupId() == cacheId("cache1")) {
                dr1flPages += pagesListView.bucketSize();
                dr1flStripes += pagesListView.stripesCount();
                dr1flCached += pagesListView.cachedPagesCount();
            }
        }
        assertTrue(dr1flPages > 0);
        assertTrue(dr1flStripes > 0);
        assertTrue(dr1flCached > 0);
        // Test filtering.
        assertTrue(cacheGrpPageLists instanceof FiltrableSystemView);
        Iterator<CachePagesListView> iter = ((FiltrableSystemView<CachePagesListView>) cacheGrpPageLists).iterator(U.map(CachePagesListViewWalker.CACHE_GROUP_ID_FILTER, cacheId("cache1"), CachePagesListViewWalker.PARTITION_ID_FILTER, 0, CachePagesListViewWalker.BUCKET_NUMBER_FILTER, 0));
        assertEquals(1, F.size(iter));
        iter = ((FiltrableSystemView<CachePagesListView>) cacheGrpPageLists).iterator(U.map(CachePagesListViewWalker.CACHE_GROUP_ID_FILTER, cacheId("cache1"), CachePagesListViewWalker.BUCKET_NUMBER_FILTER, 0));
        assertEquals(2, F.size(iter));
    }
}

Example 2 with CachePagesListView

use of org.apache.ignite.spi.systemview.view.CachePagesListView in project ignite by apache.

the class GridCacheProcessor method pagesListViewSupplier.

/**
 * Pages list view supplier.
 *
 * @param filter Filter.
 */
private Iterable<CachePagesListView> pagesListViewSupplier(Map<String, Object> filter) {
    Integer cacheGrpId = (Integer) filter.get(CachePagesListViewWalker.CACHE_GROUP_ID_FILTER);
    Integer partId = (Integer) filter.get(CachePagesListViewWalker.PARTITION_ID_FILTER);
    Integer bucketNum = (Integer) filter.get(CachePagesListViewWalker.BUCKET_NUMBER_FILTER);
    Iterable<IgniteCacheOffheapManager.CacheDataStore> dataStores = F.flat(F.iterator(filteredMap(cacheGrps, cacheGrpId).values(), grp -> grp.offheap().cacheDataStores(), true));
    return F.flat(F.iterator(dataStores, dataStore -> {
        RowStore rowStore = dataStore.rowStore();
        if (rowStore == null || !(dataStore instanceof GridCacheOffheapManager.GridCacheDataStore))
            return Collections.emptySet();
        PagesList pagesList = (PagesList) rowStore.freeList();
        if (bucketNum != null) {
            return bucketNum >= 0 && bucketNum < pagesList.bucketsCount() ? Collections.singleton(new CachePagesListView(pagesList, bucketNum, dataStore.partId())) : Collections.emptyList();
        }
        return IntStream.range(0, pagesList.bucketsCount()).mapToObj(bucket -> new CachePagesListView(pagesList, bucket, dataStore.partId())).collect(toList());
    }, true, cacheDataStore -> partId == null || cacheDataStore.partId() == partId));
}