use of org.apache.ignite.internal.processors.cache.persistence.defragmentation.LinkMap in project ignite by apache.
the class IndexingDefragmentation method defragmentTable.
/**
* Defragment one given table.
*/
private boolean defragmentTable(CacheGroupContext newCtx, IntMap<LinkMap> mappingByPartition, CheckpointTimeoutLock cpLock, Runnable cancellationChecker, int pageSize, PageMemoryEx oldCachePageMem, PageMemory newCachePageMemory, long cpLockThreshold, AtomicLong lastCpLockTs, TableIndexes indexes) throws IgniteCheckedException {
cpLock.checkpointReadLock();
try {
TreeIterator treeIterator = new TreeIterator(pageSize);
GridCacheContext<?, ?> cctx = indexes.cctx;
cancellationChecker.run();
for (InlineIndex oldIdx : indexes.idxs) {
InlineIndexRowHandler oldRowHnd = oldIdx.segment(0).rowHandler();
SortedIndexDefinition idxDef = (SortedIndexDefinition) indexing.indexDefinition(oldIdx.id());
InlineIndexImpl newIdx = new DefragIndexFactory(newCtx.offheap(), newCachePageMemory, oldIdx).createIndex(cctx, idxDef).unwrap(InlineIndexImpl.class);
int segments = oldIdx.segmentsCount();
for (int i = 0; i < segments; ++i) {
treeIterator.iterate(oldIdx.segment(i), oldCachePageMem, (theTree, io, pageAddr, idx) -> {
cancellationChecker.run();
if (System.currentTimeMillis() - lastCpLockTs.get() >= cpLockThreshold) {
cpLock.checkpointReadUnlock();
cpLock.checkpointReadLock();
lastCpLockTs.set(System.currentTimeMillis());
}
assert 1 == io.getVersion() : "IO version " + io.getVersion() + " is not supported by current defragmentation algorithm." + " Please implement copying of tree in a new format.";
BPlusIO<IndexRow> h2IO = DefragIndexFactory.wrap(io, oldRowHnd);
IndexRow row = theTree.getRow(h2IO, pageAddr, idx);
if (row instanceof DefragIndexRowImpl) {
DefragIndexRowImpl r = (DefragIndexRowImpl) row;
CacheDataRow cacheDataRow = r.cacheDataRow();
int partition = cacheDataRow.partition();
long link = r.link();
LinkMap map = mappingByPartition.get(partition);
long newLink = map.get(link);
// Use old row handler, as MetaInfo is copied from old tree.
DefragIndexRowImpl newRow = DefragIndexRowImpl.create(oldRowHnd, newLink, r, ((MvccIO) io).storeMvccInfo());
newIdx.putIndexRow(newRow);
}
return true;
});
}
}
return true;
} catch (Throwable t) {
newCtx.cacheObjectContext().kernalContext().failure().process(new FailureContext(CRITICAL_ERROR, t));
throw t;
} finally {
cpLock.checkpointReadUnlock();
}
}
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