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Elasticsearch subproject :server
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.index.translog;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.io.stream.Writeable;
import org.elasticsearch.common.unit.ByteSizeValue;
import org.elasticsearch.xcontent.ToXContentFragment;
import org.elasticsearch.xcontent.XContentBuilder;
import java.io.IOException;
import java.util.Objects;
public class TranslogStats implements Writeable, ToXContentFragment {
private long translogSizeInBytes;
private int numberOfOperations;
private long uncommittedSizeInBytes;
private int uncommittedOperations;
private long earliestLastModifiedAge;
public TranslogStats() {}
public TranslogStats(StreamInput in) throws IOException {
numberOfOperations = in.readVInt();
translogSizeInBytes = in.readVLong();
uncommittedOperations = in.readVInt();
uncommittedSizeInBytes = in.readVLong();
earliestLastModifiedAge = in.readVLong();
}
public TranslogStats(
int numberOfOperations,
long translogSizeInBytes,
int uncommittedOperations,
long uncommittedSizeInBytes,
long earliestLastModifiedAge
) {
if (numberOfOperations < 0) {
throw new IllegalArgumentException("numberOfOperations must be >= 0");
}
if (translogSizeInBytes < 0) {
throw new IllegalArgumentException("translogSizeInBytes must be >= 0");
}
if (uncommittedOperations < 0) {
throw new IllegalArgumentException("uncommittedOperations must be >= 0");
}
if (uncommittedSizeInBytes < 0) {
throw new IllegalArgumentException("uncommittedSizeInBytes must be >= 0");
}
if (earliestLastModifiedAge < 0) {
throw new IllegalArgumentException("earliestLastModifiedAge must be >= 0");
}
this.numberOfOperations = numberOfOperations;
this.translogSizeInBytes = translogSizeInBytes;
this.uncommittedSizeInBytes = uncommittedSizeInBytes;
this.uncommittedOperations = uncommittedOperations;
this.earliestLastModifiedAge = earliestLastModifiedAge;
}
public void add(TranslogStats translogStats) {
if (translogStats == null) {
return;
}
this.numberOfOperations += translogStats.numberOfOperations;
this.translogSizeInBytes += translogStats.translogSizeInBytes;
this.uncommittedOperations += translogStats.uncommittedOperations;
this.uncommittedSizeInBytes += translogStats.uncommittedSizeInBytes;
if (this.earliestLastModifiedAge == 0) {
this.earliestLastModifiedAge = translogStats.earliestLastModifiedAge;
} else {
this.earliestLastModifiedAge = Math.min(this.earliestLastModifiedAge, translogStats.earliestLastModifiedAge);
}
}
public long getTranslogSizeInBytes() {
return translogSizeInBytes;
}
public int estimatedNumberOfOperations() {
return numberOfOperations;
}
/** the size of the generations in the translog that weren't yet to committed to lucene */
public long getUncommittedSizeInBytes() {
return uncommittedSizeInBytes;
}
/** the number of operations in generations of the translog that weren't yet to committed to lucene */
public int getUncommittedOperations() {
return uncommittedOperations;
}
public long getEarliestLastModifiedAge() {
return earliestLastModifiedAge;
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject("translog");
builder.field("operations", numberOfOperations);
builder.humanReadableField("size_in_bytes", "size", ByteSizeValue.ofBytes(translogSizeInBytes));
builder.field("uncommitted_operations", uncommittedOperations);
builder.humanReadableField("uncommitted_size_in_bytes", "uncommitted_size", ByteSizeValue.ofBytes(uncommittedSizeInBytes));
builder.field("earliest_last_modified_age", earliestLastModifiedAge);
builder.endObject();
return builder;
}
@Override
public String toString() {
return Strings.toString(this, true, true);
}
@Override
public void writeTo(StreamOutput out) throws IOException {
out.writeVInt(numberOfOperations);
out.writeVLong(translogSizeInBytes);
out.writeVInt(uncommittedOperations);
out.writeVLong(uncommittedSizeInBytes);
out.writeVLong(earliestLastModifiedAge);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
TranslogStats that = (TranslogStats) o;
return numberOfOperations == that.numberOfOperations
&& translogSizeInBytes == that.translogSizeInBytes
&& uncommittedOperations == that.uncommittedOperations
&& uncommittedSizeInBytes == that.uncommittedSizeInBytes
&& earliestLastModifiedAge == that.earliestLastModifiedAge;
}
@Override
public int hashCode() {
return Objects.hash(
numberOfOperations,
translogSizeInBytes,
uncommittedOperations,
uncommittedSizeInBytes,
earliestLastModifiedAge
);
}
}