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

Example 1 with PagesListView

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

the class IgniteCacheDatabaseSharedManager method start0.

/**
 * {@inheritDoc}
 */
@Override
protected void start0() throws IgniteCheckedException {
    if (cctx.kernalContext().clientNode() && cctx.kernalContext().config().getDataStorageConfiguration() == null)
        return;
    DataStorageConfiguration memCfg = cctx.kernalContext().config().getDataStorageConfiguration();
    assert memCfg != null;
    validateConfiguration(memCfg);
    pageSize = memCfg.getPageSize();
    initDataRegions(memCfg);
    cctx.kernalContext().systemView().registerView(DATA_REGION_PAGE_LIST_VIEW, DATA_REGION_PAGE_LIST_VIEW_DESC, new PagesListViewWalker(), () -> {
        Map<String, CacheFreeList> freeLists = freeListMap;
        if (freeLists == null)
            return Collections.emptyList();
        return freeLists.values().stream().flatMap(fl -> IntStream.range(0, fl.bucketsCount()).mapToObj(bucket -> new PagesListView(fl, bucket))).collect(Collectors.toList());
    }, Function.identity());
}

Example 2 with PagesListView

use of org.apache.ignite.spi.systemview.view.PagesListView 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));
    }
}