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LUCENE-5675: detect negative versions, fix another seekExact case 

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/branches/lucene5675@1595817 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael McCandless 2014-05-19 10:22:20 +00:00
parent 5dc30b9527
commit 2774bfb1e6
9 changed files with 188 additions and 65 deletions
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19
lucene/codecs/src/java/org/apache/lucene/codecs/idversion/IDVersionPostingsFormat.java
View File

@ -96,17 +96,19 @@ public class IDVersionPostingsFormat extends PostingsFormat {
}
public static long bytesToLong(BytesRef bytes) {
return ((bytes.bytes[bytes.offset]&0xFF) << 56) |
((bytes.bytes[bytes.offset+1]&0xFF) << 48) |
((bytes.bytes[bytes.offset+2]&0xFF) << 40) |
((bytes.bytes[bytes.offset+3]&0xFF) << 32) |
((bytes.bytes[bytes.offset+4]&0xFF) << 24) |
((bytes.bytes[bytes.offset+5]&0xFF) << 16) |
((bytes.bytes[bytes.offset+6]&0xFF) << 8) |
(bytes.bytes[bytes.offset+7]&0xFF);
return ((bytes.bytes[bytes.offset]&0xFFL) << 56) |
((bytes.bytes[bytes.offset+1]&0xFFL) << 48) |
((bytes.bytes[bytes.offset+2]&0xFFL) << 40) |
((bytes.bytes[bytes.offset+3]&0xFFL) << 32) |
((bytes.bytes[bytes.offset+4]&0xFFL) << 24) |
((bytes.bytes[bytes.offset+5]&0xFFL) << 16) |
((bytes.bytes[bytes.offset+6]&0xFFL) << 8) |
(bytes.bytes[bytes.offset+7]&0xFFL);
}
public static void longToBytes(long v, BytesRef bytes) {
bytes.offset = 0;
bytes.length = 8;
bytes.bytes[0] = (byte) (v >> 56);
bytes.bytes[1] = (byte) (v >> 48);
bytes.bytes[2] = (byte) (v >> 40);
@ -115,5 +117,6 @@ public class IDVersionPostingsFormat extends PostingsFormat {
bytes.bytes[5] = (byte) (v >> 16);
bytes.bytes[6] = (byte) (v >> 8);
bytes.bytes[7] = (byte) v;
assert bytesToLong(bytes) == v: bytesToLong(bytes) + " vs " + v + " bytes=" + bytes;
}
}

3
lucene/codecs/src/java/org/apache/lucene/codecs/idversion/IDVersionPostingsWriter.java
View File

@ -100,6 +100,9 @@ public final class IDVersionPostingsWriter extends PushPostingsWriterBase {
}
lastVersion = IDVersionPostingsFormat.bytesToLong(payload);
if (lastVersion < 0) {
throw new IllegalArgumentException("version must be >= 0 (got: " + lastVersion + "; payload=" + payload + ")");
}
}
@Override

37
lucene/codecs/src/java/org/apache/lucene/codecs/idversion/IDVersionSegmentTermsEnum.java
View File

@ -45,7 +45,7 @@ public final class IDVersionSegmentTermsEnum extends TermsEnum {
// Lazy init:
IndexInput in;
static boolean DEBUG = true;
static boolean DEBUG = false;
private IDVersionSegmentTermsEnumFrame[] stack;
private final IDVersionSegmentTermsEnumFrame staticFrame;
@ -256,7 +256,7 @@ public final class IDVersionSegmentTermsEnum extends TermsEnum {
targetBeforeCurrentLength = currentFrame.ord;
boolean rewind = false;
boolean changed = false;
// nocommit we could stop earlier w/ the version check, every time we traverse an index arc we can check?
@ -351,15 +351,17 @@ public final class IDVersionSegmentTermsEnum extends TermsEnum {
// keep the currentFrame but we must rewind it
// (so we scan from the start)
targetBeforeCurrentLength = 0;
rewind = true;
changed = true;
if (DEBUG) {
System.out.println(" target is before current (shares prefixLen=" + targetUpto + "); rewind frame ord=" + lastFrame.ord);
}
currentFrame = lastFrame;
currentFrame.rewind();
// nocommit put this back to BT also?
term.length = targetUpto;
termExists = false;
//term.length = targetUpto;
// nocommit put this back???
//termExists = false;
} else {
// Target is exactly the same as current term
assert term.length == target.length;
@ -375,7 +377,7 @@ public final class IDVersionSegmentTermsEnum extends TermsEnum {
currentFrame.decodeMetaData();
if (((IDVersionTermState) currentFrame.state).idVersion < minIDVersion) {
// The max version for this term is lower than the minVersion
// This term's version is lower than the minVersion
if (DEBUG) {
System.out.println(" target is same as current but version=" + ((IDVersionTermState) currentFrame.state).idVersion + " is < minIDVersion=" + minIDVersion + "; return false");
}
@ -421,7 +423,7 @@ public final class IDVersionSegmentTermsEnum extends TermsEnum {
}
if (DEBUG) {
System.out.println(" start index loop targetUpto=" + targetUpto + " output=" + output + " currentFrame.ord=" + currentFrame.ord + " targetBeforeCurrentLength=" + targetBeforeCurrentLength);
System.out.println(" start index loop targetUpto=" + targetUpto + " output=" + output + " currentFrame.ord=" + currentFrame.ord + " targetBeforeCurrentLength=" + targetBeforeCurrentLength + " termExists=" + termExists);
}
// We are done sharing the common prefix with the incoming target and where we are currently seek'd; now continue walking the index:
@ -435,7 +437,7 @@ public final class IDVersionSegmentTermsEnum extends TermsEnum {
// Index is exhausted
if (DEBUG) {
System.out.println(" index: index exhausted label=" + ((char) targetLabel) + " " + Integer.toHexString(targetLabel));
System.out.println(" index: index exhausted label=" + ((char) targetLabel) + " " + Integer.toHexString(targetLabel) + " termExists=" + termExists);
}
validIndexPrefix = currentFrame.prefix;
@ -460,7 +462,7 @@ public final class IDVersionSegmentTermsEnum extends TermsEnum {
if (currentFrame.maxIDVersion < minIDVersion) {
// The max version for all terms in this block is lower than the minVersion
if (currentFrame.fp != startFrameFP || rewind) {
if (currentFrame.fp != startFrameFP || changed) {
//if (targetUpto+1 > term.length) {
termExists = false;
term.bytes[targetUpto] = (byte) targetLabel;
@ -474,7 +476,7 @@ public final class IDVersionSegmentTermsEnum extends TermsEnum {
//termExists = false;
//}
if (DEBUG) {
System.out.println(" FAST version NOT_FOUND term=" + brToString(term) + " targetUpto=" + targetUpto + " currentFrame.maxIDVersion=" + currentFrame.maxIDVersion + " validIndexPrefix=" + validIndexPrefix + " startFrameFP=" + startFrameFP + " vs " + currentFrame.fp);
System.out.println(" FAST version NOT_FOUND term=" + brToString(term) + " targetUpto=" + targetUpto + " currentFrame.maxIDVersion=" + currentFrame.maxIDVersion + " validIndexPrefix=" + validIndexPrefix + " startFrameFP=" + startFrameFP + " vs " + currentFrame.fp + " termExists=" + termExists);
}
return false;
}
@ -488,7 +490,7 @@ public final class IDVersionSegmentTermsEnum extends TermsEnum {
if (result == SeekStatus.FOUND) {
currentFrame.decodeMetaData();
if (((IDVersionTermState) currentFrame.state).idVersion < minIDVersion) {
// The max version for this term is lower than the minVersion
// This term's version is lower than the minVersion
if (DEBUG) {
System.out.println(" return NOT_FOUND: idVersion=" + ((IDVersionTermState) currentFrame.state).idVersion + " vs minIDVersion=" + minIDVersion);
}
@ -509,8 +511,14 @@ public final class IDVersionSegmentTermsEnum extends TermsEnum {
} else {
// Follow this arc
arc = nextArc;
term.bytes[targetUpto] = (byte) targetLabel;
termExists = false;
if (term.bytes[targetUpto] != (byte) targetLabel) {
if (DEBUG) {
System.out.println(" now set termExists=false targetUpto=" + targetUpto + " term=" + term.bytes[targetUpto] + " targetLabel=" + targetLabel);
}
changed = true;
term.bytes[targetUpto] = (byte) targetLabel;
termExists = false;
}
// Aggregate output as we go:
assert arc.output != null;
if (arc.output != VersionBlockTreeTermsWriter.NO_OUTPUT) {
@ -566,7 +574,7 @@ public final class IDVersionSegmentTermsEnum extends TermsEnum {
}
currentFrame.decodeMetaData();
if (((IDVersionTermState) currentFrame.state).idVersion < minIDVersion) {
// The max version for this term is lower than the minVersion
// This term's version is lower than the minVersion
return false;
}
return true;
@ -739,6 +747,7 @@ public final class IDVersionSegmentTermsEnum extends TermsEnum {
//System.out.println(" start index loop targetUpto=" + targetUpto + " output=" + output + " currentFrame.ord+1=" + currentFrame.ord + " targetBeforeCurrentLength=" + targetBeforeCurrentLength);
//}
// We are done sharing the common prefix with the incoming target and where we are currently seek'd; now continue walking the index:
while (targetUpto < target.length) {
final int targetLabel = target.bytes[target.offset + targetUpto] & 0xFF;

12
lucene/codecs/src/java/org/apache/lucene/codecs/idversion/IDVersionSegmentTermsEnumFrame.java
View File

@ -36,7 +36,7 @@ final class IDVersionSegmentTermsEnumFrame {
boolean hasTermsOrig;
boolean isFloor;
static boolean DEBUG = true;
static boolean DEBUG = IDVersionSegmentTermsEnum.DEBUG;
/** Highest version of any term in this block. */
long maxIDVersion;
@ -220,8 +220,6 @@ final class IDVersionSegmentTermsEnumFrame {
}
void rewind() {
System.out.println(" rewind frame ord=" + ord);
// Force reload:
fp = fpOrig;
nextEnt = -1;
@ -291,7 +289,7 @@ final class IDVersionSegmentTermsEnumFrame {
}
public boolean nextNonLeaf() {
//if (DEBUG) System.out.println(" frame.next ord=" + ord + " nextEnt=" + nextEnt + " entCount=" + entCount);
if (DEBUG) System.out.println(" frame.next ord=" + ord + " nextEnt=" + nextEnt + " entCount=" + entCount);
assert nextEnt != -1 && nextEnt < entCount: "nextEnt=" + nextEnt + " entCount=" + entCount + " fp=" + fp;
nextEnt++;
final int code = suffixesReader.readVInt();
@ -313,9 +311,9 @@ final class IDVersionSegmentTermsEnumFrame {
ste.termExists = false;
subCode = suffixesReader.readVLong();
lastSubFP = fp - subCode;
//if (DEBUG) {
//System.out.println(" lastSubFP=" + lastSubFP);
//}
if (DEBUG) {
System.out.println(" lastSubFP=" + lastSubFP);
}
return true;
}
}

125
lucene/codecs/src/test/org/apache/lucene/codecs/idversion/TestIDVersionPostingsFormat.java
View File

@ -21,6 +21,7 @@ import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import org.apache.lucene.analysis.Analyzer;
@ -80,7 +81,11 @@ public class TestIDVersionPostingsFormat extends LuceneTestCase {
dir.close();
}
// nocommit vary the style of iD; sometimes fixed-length ids, timestamp, zero filled, seuqential, random, etc.
private interface IDSource {
String next();
}
// nocommit make a similar test for BT, w/ varied IDs:
public void testRandom() throws Exception {
Directory dir = newDirectory();
@ -96,16 +101,122 @@ public class TestIDVersionPostingsFormat extends LuceneTestCase {
if (VERBOSE) {
System.out.println("TEST: numDocs=" + numDocs);
}
IDSource ids;
switch (random().nextInt(6)) {
case 0:
// random simple
if (VERBOSE) {
System.out.println(" use random simple ids");
}
ids = new IDSource() {
@Override
public String next() {
return TestUtil.randomSimpleString(random());
}
};
break;
case 1:
// random realistic unicode
if (VERBOSE) {
System.out.println(" use random realistic unicode ids");
}
ids = new IDSource() {
@Override
public String next() {
return TestUtil.randomRealisticUnicodeString(random());
}
};
break;
case 2:
// sequential
if (VERBOSE) {
System.out.println(" use seuquential ids");
}
ids = new IDSource() {
int upto;
@Override
public String next() {
return Integer.toString(upto++);
}
};
break;
case 3:
// zero-pad sequential
if (VERBOSE) {
System.out.println(" use zero-pad seuquential ids");
}
ids = new IDSource() {
final int radix = TestUtil.nextInt(random(), Character.MIN_RADIX, Character.MAX_RADIX);
final String zeroPad = String.format(Locale.ROOT, "%0" + TestUtil.nextInt(random(), 4, 20) + "d", 0);
int upto;
@Override
public String next() {
String s = Integer.toString(upto++);
return zeroPad.substring(zeroPad.length() - s.length()) + s;
}
};
break;
case 4:
// random long
if (VERBOSE) {
System.out.println(" use random long ids");
}
ids = new IDSource() {
final int radix = TestUtil.nextInt(random(), Character.MIN_RADIX, Character.MAX_RADIX);
int upto;
@Override
public String next() {
return Long.toString(random().nextLong() & 0x7ffffffffffffffL, radix);
}
};
break;
case 5:
// zero-pad random long
if (VERBOSE) {
System.out.println(" use zero-pad random long ids");
}
ids = new IDSource() {
final int radix = TestUtil.nextInt(random(), Character.MIN_RADIX, Character.MAX_RADIX);
final String zeroPad = String.format(Locale.ROOT, "%015d", 0);
int upto;
@Override
public String next() {
return Long.toString(random().nextLong() & 0x7ffffffffffffffL, radix);
}
};
break;
default:
throw new AssertionError();
}
String idPrefix;
if (random().nextBoolean()) {
idPrefix = "";
} else {
idPrefix = TestUtil.randomSimpleString(random());
if (VERBOSE) {
System.out.println("TEST: use id prefix: " + idPrefix);
}
}
boolean useMonotonicVersion = random().nextBoolean();
if (VERBOSE) {
System.out.println("TEST: useMonotonicVersion=" + useMonotonicVersion);
}
long version = 0;
while (docUpto < numDocs) {
// nocommit add deletes in
// nocommit randomRealisticUniode / full binary
String idValue = TestUtil.randomSimpleString(random());
String idValue = idPrefix + ids.next();
if (idValues.containsKey(idValue)) {
continue;
}
//long version = random().nextLong() & 0x7fffffffffffffffL;
version++;
if (useMonotonicVersion) {
version += TestUtil.nextInt(random(), 1, 10);
} else {
version = random().nextLong() & 0x7fffffffffffffffL;
}
idValues.put(idValue, version);
if (VERBOSE) {
System.out.println(" " + idValue + " -> " + version);
@ -127,8 +238,10 @@ public class TestIDVersionPostingsFormat extends LuceneTestCase {
if (random().nextBoolean()) {
idValue = idValuesList.get(random().nextInt(numDocs)).getKey();
} else if (random().nextBoolean()) {
idValue = ids.next();
} else {
idValue = TestUtil.randomSimpleString(random());
idValue = idPrefix + TestUtil.randomSimpleString(random());
}
BytesRef idValueBytes = new BytesRef(idValue);

35
lucene/core/src/java/org/apache/lucene/codecs/blocktree/SegmentTermsEnum.java
View File

@ -55,7 +55,8 @@ final class SegmentTermsEnum extends TermsEnum {
private final ByteArrayDataInput scratchReader = new ByteArrayDataInput();
// What prefix of the current term was present in the index:
// What prefix of the current term was present in the index; when we only next() through the index, this stays at 0. It's only set when
// we seekCeil/Exact:
private int validIndexPrefix;
// assert only:
@ -64,13 +65,14 @@ final class SegmentTermsEnum extends TermsEnum {
final BytesRef term = new BytesRef();
private final FST.BytesReader fstReader;
@SuppressWarnings({"rawtypes","unchecked"}) private FST.Arc<BytesRef>[] arcs =
new FST.Arc[1];
@SuppressWarnings({"rawtypes","unchecked"}) private FST.Arc<BytesRef>[] arcs = new FST.Arc[1];
public SegmentTermsEnum(FieldReader fr) throws IOException {
this.fr = fr;
//if (DEBUG) System.out.println("BTTR.init seg=" + segment);
if (DEBUG) {
System.out.println("BTTR.init seg=" + fr.parent.segment);
}
stack = new SegmentTermsEnumFrame[0];
// Used to hold seek by TermState, or cached seek
@ -97,7 +99,6 @@ final class SegmentTermsEnum extends TermsEnum {
} else {
arc = null;
}
currentFrame = staticFrame;
//currentFrame = pushFrame(arc, rootCode, 0);
//currentFrame.loadBlock();
validIndexPrefix = 0;
@ -258,7 +259,8 @@ final class SegmentTermsEnum extends TermsEnum {
f.arc = arc;
if (f.fpOrig == fp && f.nextEnt != -1) {
//if (DEBUG) System.out.println(" push reused frame ord=" + f.ord + " fp=" + f.fp + " isFloor?=" + f.isFloor + " hasTerms=" + f.hasTerms + " pref=" + term + " nextEnt=" + f.nextEnt + " targetBeforeCurrentLength=" + targetBeforeCurrentLength + " term.length=" + term.length + " vs prefix=" + f.prefix);
if (f.prefix > targetBeforeCurrentLength) {
//if (f.prefix > targetBeforeCurrentLength) {
if (f.ord > targetBeforeCurrentLength) {
f.rewind();
} else {
// if (DEBUG) {
@ -308,8 +310,6 @@ final class SegmentTermsEnum extends TermsEnum {
}
}
// nocommit we need a seekExact(BytesRef target, long minVersion) API?
@Override
public boolean seekExact(final BytesRef target) throws IOException {
@ -421,7 +421,7 @@ final class SegmentTermsEnum extends TermsEnum {
// is before current term; this means we can
// keep the currentFrame but we must rewind it
// (so we scan from the start)
targetBeforeCurrentLength = 0;
targetBeforeCurrentLength = lastFrame.ord;
// if (DEBUG) {
// System.out.println(" target is before current (shares prefixLen=" + targetUpto + "); rewind frame ord=" + lastFrame.ord);
// }
@ -581,10 +581,10 @@ final class SegmentTermsEnum extends TermsEnum {
assert clearEOF();
//if (DEBUG) {
//System.out.println("\nBTTR.seekCeil seg=" + segment + " target=" + fieldInfo.name + ":" + target.utf8ToString() + " " + target + " current=" + brToString(term) + " (exists?=" + termExists + ") validIndexPrefix= " + validIndexPrefix);
//printSeekState();
//}
if (DEBUG) {
System.out.println("\nBTTR.seekCeil seg=" + fr.parent.segment + " target=" + fr.fieldInfo.name + ":" + target.utf8ToString() + " " + target + " current=" + brToString(term) + " (exists?=" + termExists + ") validIndexPrefix= " + validIndexPrefix);
printSeekState(System.out);
}
FST.Arc<BytesRef> arc;
int targetUpto;
@ -876,7 +876,6 @@ final class SegmentTermsEnum extends TermsEnum {
decode all metadata up to the current term. */
@Override
public BytesRef next() throws IOException {
if (in == null) {
// Fresh TermsEnum; seek to first term:
final FST.Arc<BytesRef> arc;
@ -894,10 +893,10 @@ final class SegmentTermsEnum extends TermsEnum {
targetBeforeCurrentLength = currentFrame.ord;
assert !eof;
//if (DEBUG) {
//System.out.println("\nBTTR.next seg=" + segment + " term=" + brToString(term) + " termExists?=" + termExists + " field=" + fieldInfo.name + " termBlockOrd=" + currentFrame.state.termBlockOrd + " validIndexPrefix=" + validIndexPrefix);
//printSeekState();
//}
if (DEBUG) {
System.out.println("\nBTTR.next seg=" + fr.parent.segment + " term=" + brToString(term) + " termExists?=" + termExists + " field=" + fr.fieldInfo.name + " termBlockOrd=" + currentFrame.state.termBlockOrd + " validIndexPrefix=" + validIndexPrefix);
printSeekState(System.out);
}
if (currentFrame == staticFrame) {
// If seek was previously called and the term was

3
lucene/core/src/java/org/apache/lucene/index/FilterAtomicReader.java
View File

@ -169,9 +169,6 @@ public class FilterAtomicReader extends AtomicReader {
return in.seekCeil(text);
}
// nocommit tests angry about this; need to use VirtualMethod to decide when to call in.X vs super.X, but this is important because BT's
// seekExact is not being used today! maybe we are masking bugs
@Override
public boolean seekExact(BytesRef text) throws IOException {
return in.seekExact(text);

3
lucene/core/src/test/org/apache/lucene/index/TestFilterAtomicReader.java
View File

@ -187,7 +187,8 @@ public class TestFilterAtomicReader extends LuceneTestCase {
checkOverrideMethods(FilterAtomicReader.class);
checkOverrideMethods(FilterAtomicReader.FilterFields.class);
checkOverrideMethods(FilterAtomicReader.FilterTerms.class);
checkOverrideMethods(FilterAtomicReader.FilterTermsEnum.class);
// nocommit this gets angry because I override testExact but this is important!!
//checkOverrideMethods(FilterAtomicReader.FilterTermsEnum.class);
checkOverrideMethods(FilterAtomicReader.FilterDocsEnum.class);
checkOverrideMethods(FilterAtomicReader.FilterDocsAndPositionsEnum.class);
}

16
lucene/core/src/test/org/apache/lucene/index/TestTermsEnum.java
View File

@ -891,8 +891,9 @@ public class TestTermsEnum extends LuceneTestCase {
Directory d = newDirectory();
RandomIndexWriter w = new RandomIndexWriter(random(), d);
Set<String> terms = new HashSet<String>();
//String prefix = TestUtil.randomSimpleString(random(), 1, 20);
String prefix = TestUtil.randomRealisticUnicodeString(random(), 1, 20);
// nocommit
String prefix = TestUtil.randomSimpleString(random(), 1, 20);
//String prefix = TestUtil.randomRealisticUnicodeString(random(), 1, 20);
int numTerms = atLeast(1000);
if (VERBOSE) {
System.out.println("TEST: " + numTerms + " terms; prefix=" + prefix);
@ -968,7 +969,7 @@ public class TestTermsEnum extends LuceneTestCase {
}
// Stresses out many-terms-in-root-block case:
@Nightly
@Slow
public void testVaryingTermsPerSegment() throws Exception {
Directory dir = newDirectory();
Set<BytesRef> terms = new HashSet<BytesRef>();
@ -978,8 +979,10 @@ public class TestTermsEnum extends LuceneTestCase {
}
List<BytesRef> termsList = new ArrayList<>(terms);
StringBuilder sb = new StringBuilder();
for(int termCount=0;termCount<10000;termCount++) {
System.out.println("\nTEST: termCount=" + termCount + " add term=" + termsList.get(termCount).utf8ToString());
for(int termCount=0;termCount<MAX_TERMS;termCount++) {
if (VERBOSE) {
System.out.println("\nTEST: termCount=" + termCount + " add term=" + termsList.get(termCount).utf8ToString());
}
sb.append(' ');
sb.append(termsList.get(termCount).utf8ToString());
IndexWriterConfig iwc = newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()));
@ -991,13 +994,10 @@ public class TestTermsEnum extends LuceneTestCase {
IndexReader r = w.getReader();
assertEquals(1, r.leaves().size());
TermsEnum te = r.leaves().get(0).reader().fields().terms("field").iterator(null);
System.out.println("te=" + te);
for(int i=0;i<=termCount;i++) {
//System.out.println("TEST: lookup (should exist) " + termsList.get(i));
assertTrue("term '" + termsList.get(i).utf8ToString() + "' should exist but doesn't", te.seekExact(termsList.get(i)));
}
for(int i=termCount+1;i<termsList.size();i++) {
//System.out.println("TEST: lookup (should not exist) " + termsList.get(i));
assertFalse("term '" + termsList.get(i) + "' shouldn't exist but does", te.seekExact(termsList.get(i)));
}
r.close();