X-Git-Url: https://git.mdrn.pl/pylucene.git/blobdiff_plain/a2e61f0c04805cfcb8706176758d1283c7e3a55c..aaeed5504b982cf3545252ab528713250aa33eed:/lucene-java-3.5.0/lucene/backwards/src/test/org/apache/lucene/index/TestIndexWriterOnDiskFull.java?ds=sidebyside

diff --git a/lucene-java-3.5.0/lucene/backwards/src/test/org/apache/lucene/index/TestIndexWriterOnDiskFull.java b/lucene-java-3.5.0/lucene/backwards/src/test/org/apache/lucene/index/TestIndexWriterOnDiskFull.java
new file mode 100644
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+++ b/lucene-java-3.5.0/lucene/backwards/src/test/org/apache/lucene/index/TestIndexWriterOnDiskFull.java
@@ -0,0 +1,555 @@
+package org.apache.lucene.index;
+
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.io.IOException;
+
+import org.apache.lucene.analysis.MockAnalyzer;
+import org.apache.lucene.document.Document;
+import org.apache.lucene.document.Field;
+import org.apache.lucene.index.IndexWriterConfig.OpenMode;
+import org.apache.lucene.search.IndexSearcher;
+import org.apache.lucene.search.ScoreDoc;
+import org.apache.lucene.search.TermQuery;
+import org.apache.lucene.store.Directory;
+import org.apache.lucene.store.MockDirectoryWrapper;
+import org.apache.lucene.store.RAMDirectory;
+import org.apache.lucene.util.LuceneTestCase;
+import org.apache.lucene.util._TestUtil;
+
+import static org.apache.lucene.index.TestIndexWriter.assertNoUnreferencedFiles;
+
+/**
+ * Tests for IndexWriter when the disk runs out of space
+ */
+public class TestIndexWriterOnDiskFull extends LuceneTestCase {
+
+  /*
+   * Make sure IndexWriter cleans up on hitting a disk
+   * full exception in addDocument.
+   * TODO: how to do this on windows with FSDirectory?
+   */
+  public void testAddDocumentOnDiskFull() throws IOException {
+
+    for(int pass=0;pass<2;pass++) {
+      if (VERBOSE) {
+        System.out.println("TEST: pass=" + pass);
+      }
+      boolean doAbort = pass == 1;
+      long diskFree = _TestUtil.nextInt(random, 100, 300);
+      while(true) {
+        if (VERBOSE) {
+          System.out.println("TEST: cycle: diskFree=" + diskFree);
+        }
+        MockDirectoryWrapper dir = new MockDirectoryWrapper(random, new RAMDirectory());
+        dir.setMaxSizeInBytes(diskFree);
+        IndexWriter writer = new IndexWriter(dir, newIndexWriterConfig( TEST_VERSION_CURRENT, new MockAnalyzer(random)));
+        writer.setInfoStream(VERBOSE ? System.out : null);
+        MergeScheduler ms = writer.getConfig().getMergeScheduler();
+        if (ms instanceof ConcurrentMergeScheduler) {
+          // This test intentionally produces exceptions
+          // in the threads that CMS launches; we don't
+          // want to pollute test output with these.
+          ((ConcurrentMergeScheduler) ms).setSuppressExceptions();
+        }
+
+        boolean hitError = false;
+        try {
+          for(int i=0;i<200;i++) {
+            addDoc(writer);
+          }
+          if (VERBOSE) {
+            System.out.println("TEST: done adding docs; now commit");
+          }
+          writer.commit();
+        } catch (IOException e) {
+          if (VERBOSE) {
+            System.out.println("TEST: exception on addDoc");
+            e.printStackTrace(System.out);
+          }
+          hitError = true;
+        }
+
+        if (hitError) {
+          if (doAbort) {
+            if (VERBOSE) {
+              System.out.println("TEST: now rollback");
+            }
+            writer.rollback();
+          } else {
+            try {
+              if (VERBOSE) {
+                System.out.println("TEST: now close");
+              }
+              writer.close();
+            } catch (IOException e) {
+              if (VERBOSE) {
+                System.out.println("TEST: exception on close; retry w/ no disk space limit");
+                e.printStackTrace(System.out);
+              }
+              dir.setMaxSizeInBytes(0);
+              writer.close();
+            }
+          }
+
+          //_TestUtil.syncConcurrentMerges(ms);
+
+          if (_TestUtil.anyFilesExceptWriteLock(dir)) {
+            assertNoUnreferencedFiles(dir, "after disk full during addDocument");
+            
+            // Make sure reader can open the index:
+            IndexReader.open(dir, true).close();
+          }
+            
+          dir.close();
+          // Now try again w/ more space:
+
+          diskFree += TEST_NIGHTLY ? _TestUtil.nextInt(random, 400, 600) : _TestUtil.nextInt(random, 3000, 5000);
+        } else {
+          //_TestUtil.syncConcurrentMerges(writer);
+          dir.setMaxSizeInBytes(0);
+          writer.close();
+          dir.close();
+          break;
+        }
+      }
+    }
+  }
+
+  // TODO: make @Nightly variant that provokes more disk
+  // fulls
+
+  // TODO: have test fail if on any given top
+  // iter there was not a single IOE hit
+
+  /*
+  Test: make sure when we run out of disk space or hit
+  random IOExceptions in any of the addIndexes(*) calls
+  that 1) index is not corrupt (searcher can open/search
+  it) and 2) transactional semantics are followed:
+  either all or none of the incoming documents were in
+  fact added.
+   */
+  public void testAddIndexOnDiskFull() throws IOException
+  {
+    int START_COUNT = 57;
+    int NUM_DIR = 50;
+    int END_COUNT = START_COUNT + NUM_DIR*25;
+    
+    // Build up a bunch of dirs that have indexes which we
+    // will then merge together by calling addIndexes(*):
+    Directory[] dirs = new Directory[NUM_DIR];
+    long inputDiskUsage = 0;
+    for(int i=0;i<NUM_DIR;i++) {
+      dirs[i] = newDirectory();
+      IndexWriter writer  = new IndexWriter(dirs[i], newIndexWriterConfig( TEST_VERSION_CURRENT, new MockAnalyzer(random)));
+      for(int j=0;j<25;j++) {
+        addDocWithIndex(writer, 25*i+j);
+      }
+      writer.close();
+      String[] files = dirs[i].listAll();
+      for(int j=0;j<files.length;j++) {
+        inputDiskUsage += dirs[i].fileLength(files[j]);
+      }
+    }
+    
+    // Now, build a starting index that has START_COUNT docs.  We
+    // will then try to addIndexesNoOptimize into a copy of this:
+    MockDirectoryWrapper startDir = newDirectory();
+    IndexWriter writer = new IndexWriter(startDir, newIndexWriterConfig( TEST_VERSION_CURRENT, new MockAnalyzer(random)));
+    for(int j=0;j<START_COUNT;j++) {
+      addDocWithIndex(writer, j);
+    }
+    writer.close();
+    
+    // Make sure starting index seems to be working properly:
+    Term searchTerm = new Term("content", "aaa");        
+    IndexReader reader = IndexReader.open(startDir, true);
+    assertEquals("first docFreq", 57, reader.docFreq(searchTerm));
+    
+    IndexSearcher searcher = newSearcher(reader);
+    ScoreDoc[] hits = searcher.search(new TermQuery(searchTerm), null, 1000).scoreDocs;
+    assertEquals("first number of hits", 57, hits.length);
+    searcher.close();
+    reader.close();
+    
+    // Iterate with larger and larger amounts of free
+    // disk space.  With little free disk space,
+    // addIndexes will certainly run out of space &
+    // fail.  Verify that when this happens, index is
+    // not corrupt and index in fact has added no
+    // documents.  Then, we increase disk space by 2000
+    // bytes each iteration.  At some point there is
+    // enough free disk space and addIndexes should
+    // succeed and index should show all documents were
+    // added.
+    
+    // String[] files = startDir.listAll();
+    long diskUsage = startDir.sizeInBytes();
+    
+    long startDiskUsage = 0;
+    String[] files = startDir.listAll();
+    for(int i=0;i<files.length;i++) {
+      startDiskUsage += startDir.fileLength(files[i]);
+    }
+    
+    for(int iter=0;iter<3;iter++) {
+      
+      if (VERBOSE)
+        System.out.println("TEST: iter=" + iter);
+      
+      // Start with 100 bytes more than we are currently using:
+      long diskFree = diskUsage+_TestUtil.nextInt(random, 50, 200);
+      
+      int method = iter;
+      
+      boolean success = false;
+      boolean done = false;
+      
+      String methodName;
+      if (0 == method) {
+        methodName = "addIndexes(Directory[]) + optimize()";
+      } else if (1 == method) {
+        methodName = "addIndexes(IndexReader[])";
+      } else {
+        methodName = "addIndexes(Directory[])";
+      }
+      
+      while(!done) {
+        if (VERBOSE) {
+          System.out.println("TEST: cycle...");
+        }
+        
+        // Make a new dir that will enforce disk usage:
+        MockDirectoryWrapper dir = new MockDirectoryWrapper(random, new RAMDirectory(startDir));
+        writer = new IndexWriter(dir, newIndexWriterConfig( TEST_VERSION_CURRENT, new MockAnalyzer(random)).setOpenMode(OpenMode.APPEND).setMergePolicy(newLogMergePolicy()));
+        IOException err = null;
+        writer.setInfoStream(VERBOSE ? System.out : null);
+
+        MergeScheduler ms = writer.getConfig().getMergeScheduler();
+        for(int x=0;x<2;x++) {
+          if (ms instanceof ConcurrentMergeScheduler)
+            // This test intentionally produces exceptions
+            // in the threads that CMS launches; we don't
+            // want to pollute test output with these.
+            if (0 == x)
+              ((ConcurrentMergeScheduler) ms).setSuppressExceptions();
+            else
+              ((ConcurrentMergeScheduler) ms).clearSuppressExceptions();
+          
+          // Two loops: first time, limit disk space &
+          // throw random IOExceptions; second time, no
+          // disk space limit:
+          
+          double rate = 0.05;
+          double diskRatio = ((double) diskFree)/diskUsage;
+          long thisDiskFree;
+          
+          String testName = null;
+          
+          if (0 == x) {
+            thisDiskFree = diskFree;
+            if (diskRatio >= 2.0) {
+              rate /= 2;
+            }
+            if (diskRatio >= 4.0) {
+              rate /= 2;
+            }
+            if (diskRatio >= 6.0) {
+              rate = 0.0;
+            }
+            if (VERBOSE)
+              testName = "disk full test " + methodName + " with disk full at " + diskFree + " bytes";
+          } else {
+            thisDiskFree = 0;
+            rate = 0.0;
+            if (VERBOSE)
+              testName = "disk full test " + methodName + " with unlimited disk space";
+          }
+          
+          if (VERBOSE)
+            System.out.println("\ncycle: " + testName);
+          
+          dir.setTrackDiskUsage(true);
+          dir.setMaxSizeInBytes(thisDiskFree);
+          dir.setRandomIOExceptionRate(rate);
+          
+          try {
+            
+            if (0 == method) {
+              writer.addIndexes(dirs);
+              writer.optimize();
+            } else if (1 == method) {
+              IndexReader readers[] = new IndexReader[dirs.length];
+              for(int i=0;i<dirs.length;i++) {
+                readers[i] = IndexReader.open(dirs[i], true);
+              }
+              try {
+                writer.addIndexes(readers);
+              } finally {
+                for(int i=0;i<dirs.length;i++) {
+                  readers[i].close();
+                }
+              }
+            } else {
+              writer.addIndexes(dirs);
+            }
+            
+            success = true;
+            if (VERBOSE) {
+              System.out.println("  success!");
+            }
+            
+            if (0 == x) {
+              done = true;
+            }
+            
+          } catch (IOException e) {
+            success = false;
+            err = e;
+            if (VERBOSE) {
+              System.out.println("  hit IOException: " + e);
+              e.printStackTrace(System.out);
+            }
+            
+            if (1 == x) {
+              e.printStackTrace(System.out);
+              fail(methodName + " hit IOException after disk space was freed up");
+            }
+          }
+          
+          // Make sure all threads from
+          // ConcurrentMergeScheduler are done
+          _TestUtil.syncConcurrentMerges(writer);
+          
+          if (VERBOSE) {
+            System.out.println("  now test readers");
+          }
+          
+          // Finally, verify index is not corrupt, and, if
+          // we succeeded, we see all docs added, and if we
+          // failed, we see either all docs or no docs added
+          // (transactional semantics):
+          try {
+            reader = IndexReader.open(dir, true);
+          } catch (IOException e) {
+            e.printStackTrace(System.out);
+            fail(testName + ": exception when creating IndexReader: " + e);
+          }
+          int result = reader.docFreq(searchTerm);
+          if (success) {
+            if (result != START_COUNT) {
+              fail(testName + ": method did not throw exception but docFreq('aaa') is " + result + " instead of expected " + START_COUNT);
+            }
+          } else {
+            // On hitting exception we still may have added
+            // all docs:
+            if (result != START_COUNT && result != END_COUNT) {
+              err.printStackTrace(System.out);
+              fail(testName + ": method did throw exception but docFreq('aaa') is " + result + " instead of expected " + START_COUNT + " or " + END_COUNT);
+            }
+          }
+          
+          searcher = newSearcher(reader);
+          try {
+            hits = searcher.search(new TermQuery(searchTerm), null, END_COUNT).scoreDocs;
+          } catch (IOException e) {
+            e.printStackTrace(System.out);
+            fail(testName + ": exception when searching: " + e);
+          }
+          int result2 = hits.length;
+          if (success) {
+            if (result2 != result) {
+              fail(testName + ": method did not throw exception but hits.length for search on term 'aaa' is " + result2 + " instead of expected " + result);
+            }
+          } else {
+            // On hitting exception we still may have added
+            // all docs:
+            if (result2 != result) {
+              err.printStackTrace(System.out);
+              fail(testName + ": method did throw exception but hits.length for search on term 'aaa' is " + result2 + " instead of expected " + result);
+            }
+          }
+          
+          searcher.close();
+          reader.close();
+          if (VERBOSE) {
+            System.out.println("  count is " + result);
+          }
+          
+          if (done || result == END_COUNT) {
+            break;
+          }
+        }
+        
+        if (VERBOSE) {
+          System.out.println("  start disk = " + startDiskUsage + "; input disk = " + inputDiskUsage + "; max used = " + dir.getMaxUsedSizeInBytes());
+        }
+        
+        if (done) {
+          // Javadocs state that temp free Directory space
+          // required is at most 2X total input size of
+          // indices so let's make sure:
+          assertTrue("max free Directory space required exceeded 1X the total input index sizes during " + methodName +
+                     ": max temp usage = " + (dir.getMaxUsedSizeInBytes()-startDiskUsage) + " bytes vs limit=" + (2*(startDiskUsage + inputDiskUsage)) +
+                     "; starting disk usage = " + startDiskUsage + " bytes; " +
+                     "input index disk usage = " + inputDiskUsage + " bytes",
+                     (dir.getMaxUsedSizeInBytes()-startDiskUsage) < 2*(startDiskUsage + inputDiskUsage));
+        }
+        
+        // Make sure we don't hit disk full during close below:
+        dir.setMaxSizeInBytes(0);
+        dir.setRandomIOExceptionRate(0.0);
+        
+        writer.close();
+        
+        // Wait for all BG threads to finish else
+        // dir.close() will throw IOException because
+        // there are still open files
+        _TestUtil.syncConcurrentMerges(ms);
+        
+        dir.close();
+        
+        // Try again with more free space:
+        diskFree += TEST_NIGHTLY ? _TestUtil.nextInt(random, 4000, 8000) : _TestUtil.nextInt(random, 40000, 80000);
+      }
+    }
+    
+    startDir.close();
+    for (Directory dir : dirs)
+      dir.close();
+  }
+  
+  private static class FailTwiceDuringMerge extends MockDirectoryWrapper.Failure {
+    public boolean didFail1;
+    public boolean didFail2;
+
+    @Override
+    public void eval(MockDirectoryWrapper dir)  throws IOException {
+      if (!doFail) {
+        return;
+      }
+      StackTraceElement[] trace = new Exception().getStackTrace();
+      for (int i = 0; i < trace.length; i++) {
+        if ("org.apache.lucene.index.SegmentMerger".equals(trace[i].getClassName()) && "mergeTerms".equals(trace[i].getMethodName()) && !didFail1) {
+          didFail1 = true;
+          throw new IOException("fake disk full during mergeTerms");
+        }
+        if ("org.apache.lucene.util.BitVector".equals(trace[i].getClassName()) && "write".equals(trace[i].getMethodName()) && !didFail2) {
+          didFail2 = true;
+          throw new IOException("fake disk full while writing BitVector");
+        }
+      }
+    }
+  }
+  
+  // LUCENE-2593
+  public void testCorruptionAfterDiskFullDuringMerge() throws IOException {
+    MockDirectoryWrapper dir = newDirectory();
+    //IndexWriter w = new IndexWriter(dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random)).setReaderPooling(true));
+    IndexWriter w = new IndexWriter(
+        dir,
+        newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random)).
+            setMergeScheduler(new SerialMergeScheduler()).
+            setReaderPooling(true).
+            setMergePolicy(newLogMergePolicy(2))
+    );
+
+    _TestUtil.keepFullyDeletedSegments(w);
+
+    ((LogMergePolicy) w.getMergePolicy()).setMergeFactor(2);
+
+    Document doc = new Document();
+    doc.add(newField("f", "doctor who", Field.Store.YES, Field.Index.ANALYZED));
+    w.addDocument(doc);
+    w.commit();
+
+    w.deleteDocuments(new Term("f", "who"));
+    w.addDocument(doc);
+    
+    // disk fills up!
+    FailTwiceDuringMerge ftdm = new FailTwiceDuringMerge();
+    ftdm.setDoFail();
+    dir.failOn(ftdm);
+
+    try {
+      w.commit();
+      fail("fake disk full IOExceptions not hit");
+    } catch (IOException ioe) {
+      // expected
+      assertTrue(ftdm.didFail1 || ftdm.didFail2);
+    }
+    _TestUtil.checkIndex(dir);
+    ftdm.clearDoFail();
+    w.addDocument(doc);
+    w.close();
+
+    dir.close();
+  }
+  
+  // LUCENE-1130: make sure immeidate disk full on creating
+  // an IndexWriter (hit during DW.ThreadState.init()) is
+  // OK:
+  public void testImmediateDiskFull() throws IOException {
+    MockDirectoryWrapper dir = newDirectory();
+    IndexWriter writer = new IndexWriter(dir, newIndexWriterConfig( TEST_VERSION_CURRENT, new MockAnalyzer(random))
+        .setMaxBufferedDocs(2).setMergeScheduler(new ConcurrentMergeScheduler()));
+    dir.setMaxSizeInBytes(Math.max(1, dir.getRecomputedActualSizeInBytes()));
+    final Document doc = new Document();
+    doc.add(newField("field", "aaa bbb ccc ddd eee fff ggg hhh iii jjj", Field.Store.YES, Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS));
+    try {
+      writer.addDocument(doc);
+      fail("did not hit disk full");
+    } catch (IOException ioe) {
+    }
+    // Without fix for LUCENE-1130: this call will hang:
+    try {
+      writer.addDocument(doc);
+      fail("did not hit disk full");
+    } catch (IOException ioe) {
+    }
+    try {
+      writer.close(false);
+      fail("did not hit disk full");
+    } catch (IOException ioe) {
+    }
+
+    // Make sure once disk space is avail again, we can
+    // cleanly close:
+    dir.setMaxSizeInBytes(0);
+    writer.close(false);
+    dir.close();
+  }
+  
+  // TODO: these are also in TestIndexWriter... add a simple doc-writing method
+  // like this to LuceneTestCase?
+  private void addDoc(IndexWriter writer) throws IOException
+  {
+      Document doc = new Document();
+      doc.add(newField("content", "aaa", Field.Store.NO, Field.Index.ANALYZED));
+      writer.addDocument(doc);
+  }
+  
+  private void addDocWithIndex(IndexWriter writer, int index) throws IOException
+  {
+      Document doc = new Document();
+      doc.add(newField("content", "aaa " + index, Field.Store.YES, Field.Index.ANALYZED));
+      doc.add(newField("id", "" + index, Field.Store.YES, Field.Index.ANALYZED));
+      writer.addDocument(doc);
+  }
+}