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Reinstate BYTE_SIZE_VALUE_ALWAYS_USES_BYTES #122964

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Merged
prdoyle merged 6 commits into from
Feb 21, 2025
Merged

Reinstate BYTE_SIZE_VALUE_ALWAYS_USES_BYTES #122964

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219256d
Reinstate BYTE_SIZE_VALUE_ALWAYS_USES_BYTES
prdoyle Feb 19, 2025
071c1e8
Merge branch 'main' into es-10585
prdoyle Feb 20, 2025
f7c98d0
[CI] Auto commit changes from spotless
Feb 20, 2025
e6a68ef
Refactor alwaysUseBytes
prdoyle Feb 21, 2025
dfcbe82
Merge remote-tracking branch 'origin/es-10585' into es-10585
prdoyle Feb 21, 2025
fcf1045
Merge branch 'main' into es-10585
prdoyle Feb 21, 2025
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3 changes: 3 additions & 0 deletions server/src/main/java/org/elasticsearch/TransportVersions.java
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Original file line number Diff line number Diff line change
Expand Up @@ -187,6 +187,7 @@ static TransportVersion def(int id) {
public static final TransportVersion REMOVE_DESIRED_NODE_VERSION_90 = def(9_000_0_03);
public static final TransportVersion ESQL_DRIVER_TASK_DESCRIPTION_90 = def(9_000_0_04);
public static final TransportVersion REMOVE_ALL_APPLICABLE_SELECTOR_9_0 = def(9_000_0_05);
public static final TransportVersion BYTE_SIZE_VALUE_ALWAYS_USES_BYTES_90 = def(9_000_0_06);
public static final TransportVersion COHERE_BIT_EMBEDDING_TYPE_SUPPORT_ADDED = def(9_001_0_00);
public static final TransportVersion REMOVE_SNAPSHOT_FAILURES = def(9_002_0_00);
public static final TransportVersion TRANSPORT_STATS_HANDLING_TIME_REQUIRED = def(9_003_0_00);
Expand All @@ -201,6 +202,8 @@ static TransportVersion def(int id) {
public static final TransportVersion REMOVE_REPOSITORY_CONFLICT_MESSAGE = def(9_012_0_00);
public static final TransportVersion RERANKER_FAILURES_ALLOWED = def(9_013_0_00);
public static final TransportVersion VOYAGE_AI_INTEGRATION_ADDED = def(9_014_0_00);
public static final TransportVersion BYTE_SIZE_VALUE_ALWAYS_USES_BYTES = def(9_015_0_00);

/*
* STOP! READ THIS FIRST! No, really,
* ____ _____ ___ ____ _ ____ _____ _ ____ _____ _ _ ___ ____ _____ ___ ____ ____ _____ _
Expand Down
14 changes: 10 additions & 4 deletions server/src/main/java/org/elasticsearch/common/unit/ByteSizeValue.java
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Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,9 @@
import java.util.Locale;
import java.util.Objects;

import static org.elasticsearch.TransportVersions.BYTE_SIZE_VALUE_ALWAYS_USES_BYTES;
import static org.elasticsearch.TransportVersions.BYTE_SIZE_VALUE_ALWAYS_USES_BYTES_1;
import static org.elasticsearch.TransportVersions.BYTE_SIZE_VALUE_ALWAYS_USES_BYTES_90;
import static org.elasticsearch.TransportVersions.REVERT_BYTE_SIZE_VALUE_ALWAYS_USES_BYTES_1;
import static org.elasticsearch.common.unit.ByteSizeUnit.BYTES;
import static org.elasticsearch.common.unit.ByteSizeUnit.GB;
Expand Down Expand Up @@ -113,8 +115,7 @@ static ByteSizeValue newByteSizeValue(long sizeInBytes, ByteSizeUnit desiredUnit
public static ByteSizeValue readFrom(StreamInput in) throws IOException {
long size = in.readZLong();
ByteSizeUnit unit = ByteSizeUnit.readFrom(in);
TransportVersion tv = in.getTransportVersion();
if (tv.onOrAfter(BYTE_SIZE_VALUE_ALWAYS_USES_BYTES_1) && tv.before(REVERT_BYTE_SIZE_VALUE_ALWAYS_USES_BYTES_1)) {
if (alwaysUseBytes(in.getTransportVersion())) {
return newByteSizeValue(size, unit);
} else {
return of(size, unit);
Expand All @@ -123,15 +124,20 @@ public static ByteSizeValue readFrom(StreamInput in) throws IOException {

@Override
public void writeTo(StreamOutput out) throws IOException {
TransportVersion tv = out.getTransportVersion();
if (tv.onOrAfter(BYTE_SIZE_VALUE_ALWAYS_USES_BYTES_1) && tv.before(REVERT_BYTE_SIZE_VALUE_ALWAYS_USES_BYTES_1)) {
if (alwaysUseBytes(out.getTransportVersion())) {
out.writeZLong(sizeInBytes);
} else {
out.writeZLong(Math.divideExact(sizeInBytes, desiredUnit.toBytes(1)));
}
desiredUnit.writeTo(out);
}

private static boolean alwaysUseBytes(TransportVersion tv) {
return tv.onOrAfter(BYTE_SIZE_VALUE_ALWAYS_USES_BYTES)
|| tv.isPatchFrom(BYTE_SIZE_VALUE_ALWAYS_USES_BYTES_90)
|| tv.between(BYTE_SIZE_VALUE_ALWAYS_USES_BYTES_1, REVERT_BYTE_SIZE_VALUE_ALWAYS_USES_BYTES_1);
}

ByteSizeValue(long sizeInBytes, ByteSizeUnit desiredUnit) {
this.sizeInBytes = sizeInBytes;
this.desiredUnit = desiredUnit;
Expand Down
60 changes: 31 additions & 29 deletions server/src/test/java/org/elasticsearch/common/unit/ByteSizeValueTests.java
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Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,6 @@

import org.elasticsearch.ElasticsearchParseException;
import org.elasticsearch.TransportVersion;
import org.elasticsearch.TransportVersions;
import org.elasticsearch.common.io.stream.BytesStreamOutput;
import org.elasticsearch.common.io.stream.Writeable.Reader;
import org.elasticsearch.test.AbstractWireSerializingTestCase;
Expand All @@ -22,6 +21,10 @@
import java.util.List;
import java.util.function.Function;

import static org.elasticsearch.TransportVersions.BYTE_SIZE_VALUE_ALWAYS_USES_BYTES;
import static org.elasticsearch.TransportVersions.BYTE_SIZE_VALUE_ALWAYS_USES_BYTES_90;
import static org.elasticsearch.TransportVersions.INITIAL_ELASTICSEARCH_9_0;
import static org.elasticsearch.TransportVersions.V_8_16_0;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.is;
Expand Down Expand Up @@ -520,44 +523,43 @@ protected void assertEqualInstances(ByteSizeValue expectedInstance, ByteSizeValu

public void testBWCTransportFormat() throws IOException {
var tenMegs = ByteSizeValue.ofMb(10);
try (BytesStreamOutput expected = new BytesStreamOutput(); BytesStreamOutput actual = new BytesStreamOutput()) {
expected.writeZLong(10);
ByteSizeUnit.MB.writeTo(expected);
actual.setTransportVersion(TransportVersions.V_8_16_0);
tenMegs.writeTo(actual);
assertArrayEquals(
"Size denominated in the desired unit for backward compatibility",
expected.bytes().array(),
actual.bytes().array()
);
for (var tv : List.of(V_8_16_0, INITIAL_ELASTICSEARCH_9_0)) {
try (BytesStreamOutput expected = new BytesStreamOutput(); BytesStreamOutput actual = new BytesStreamOutput()) {
expected.writeZLong(10);
ByteSizeUnit.MB.writeTo(expected);
actual.setTransportVersion(tv);
tenMegs.writeTo(actual);
assertArrayEquals(
"Size denominated in the desired unit for backward compatibility",
expected.bytes().array(),
actual.bytes().array()
);
}
}
}

/**
* @see TransportVersions#REVERT_BYTE_SIZE_VALUE_ALWAYS_USES_BYTES_1
*/
@AwaitsFix(bugUrl = "https://elasticco.atlassian.net/browse/ES-10585")
public void testTwoDigitTransportRoundTrips() throws IOException {
TransportVersion tv = TransportVersion.current();
for (var desiredUnit : ByteSizeUnit.values()) {
if (desiredUnit == ByteSizeUnit.BYTES) {
continue;
}
checkTransportRoundTrip(ByteSizeValue.parseBytesSizeValue("23" + desiredUnit.getSuffix(), "test"), tv);
for (int tenths = 1; tenths <= 9; tenths++) {
checkTransportRoundTrip(ByteSizeValue.parseBytesSizeValue("23." + tenths + desiredUnit.getSuffix(), "test"), tv);
for (int hundredths = 1; hundredths <= 9; hundredths++) {
checkTransportRoundTrip(
ByteSizeValue.parseBytesSizeValue("23." + tenths + hundredths + desiredUnit.getSuffix(), "test"),
tv
);
for (var tv : List.of(TransportVersion.current(), BYTE_SIZE_VALUE_ALWAYS_USES_BYTES, BYTE_SIZE_VALUE_ALWAYS_USES_BYTES_90)) {
for (var desiredUnit : ByteSizeUnit.values()) {
if (desiredUnit == ByteSizeUnit.BYTES) {
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@rjernst rjernst Feb 21, 2025

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Why do we skip bytes?

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@prdoyle prdoyle Feb 21, 2025

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You can't have a fraction of a byte, but you can have a fraction of any other unit.

continue;
}
checkTransportRoundTrip(ByteSizeValue.parseBytesSizeValue("23" + desiredUnit.getSuffix(), "test"), tv);
for (int tenths = 1; tenths <= 9; tenths++) {
checkTransportRoundTrip(ByteSizeValue.parseBytesSizeValue("23." + tenths + desiredUnit.getSuffix(), "test"), tv);
for (int hundredths = 1; hundredths <= 9; hundredths++) {
checkTransportRoundTrip(
ByteSizeValue.parseBytesSizeValue("23." + tenths + hundredths + desiredUnit.getSuffix(), "test"),
tv
);
}
}
}
}
}

public void testIntegerTransportRoundTrips() throws IOException {
for (var tv : List.of(TransportVersion.current(), TransportVersions.V_8_16_0)) {
for (var tv : List.of(TransportVersion.current(), V_8_16_0)) {
checkTransportRoundTrip(ByteSizeValue.ONE, tv);
checkTransportRoundTrip(ByteSizeValue.ZERO, tv);
checkTransportRoundTrip(ByteSizeValue.MINUS_ONE, tv);
Expand Down