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/*
* 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.env;
import joptsimple.OptionParser;
import joptsimple.OptionSet;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.Version;
import org.elasticsearch.cli.Terminal;
import org.elasticsearch.cluster.coordination.ElasticsearchNodeCommand;
import org.elasticsearch.gateway.PersistedClusterStateService;
import java.io.IOException;
import java.nio.file.Path;
import java.util.Arrays;
public class OverrideNodeVersionCommand extends ElasticsearchNodeCommand {
private static final String TOO_NEW_MESSAGE = DELIMITER
+ "\n"
+ "This data path was last written by Elasticsearch version [V_NEW] and may no\n"
+ "longer be compatible with Elasticsearch version [V_CUR]. This tool will bypass\n"
+ "this compatibility check, allowing a version [V_CUR] node to start on this data\n"
+ "path, but a version [V_CUR] node may not be able to read this data or may read\n"
+ "it incorrectly leading to data loss.\n"
+ "\n"
+ "You should not use this tool. Instead, continue to use a version [V_NEW] node\n"
+ "on this data path. If necessary, you can use reindex-from-remote to copy the\n"
+ "data from here into an older cluster.\n"
+ "\n"
+ "Do you want to proceed?\n";
private static final String TOO_OLD_MESSAGE = DELIMITER
+ "\n"
+ "This data path was last written by Elasticsearch version [V_OLD] which may be\n"
+ "too old to be readable by Elasticsearch version [V_CUR]. This tool will bypass\n"
+ "this compatibility check, allowing a version [V_CUR] node to start on this data\n"
+ "path, but this version [V_CUR] node may not be able to read this data or may\n"
+ "read it incorrectly leading to data loss.\n"
+ "\n"
+ "You should not use this tool. Instead, upgrade this data path from [V_OLD] to\n"
+ "[V_CUR] using one or more intermediate versions of Elasticsearch.\n"
+ "\n"
+ "Do you want to proceed?\n";
static final String NO_METADATA_MESSAGE = "no node metadata found, so there is no version to override";
static final String SUCCESS_MESSAGE = "Successfully overwrote this node's metadata to bypass its version compatibility checks.";
public OverrideNodeVersionCommand() {
super(
"Overwrite the version stored in this node's data path with ["
+ Version.CURRENT
+ "] to bypass the version compatibility checks"
);
}
@Override
protected void processDataPaths(Terminal terminal, Path[] paths, int nodeLockId, OptionSet options, Environment env)
throws IOException {
final Path[] dataPaths = Arrays.stream(toDataPaths(paths)).map(p -> p.path).toArray(Path[]::new);
final NodeMetadata nodeMetadata = PersistedClusterStateService.nodeMetadata(dataPaths);
if (nodeMetadata == null) {
throw new ElasticsearchException(NO_METADATA_MESSAGE);
}
try {
nodeMetadata.upgradeToCurrentVersion();
throw new ElasticsearchException(
"found ["
+ nodeMetadata
+ "] which is compatible with current version ["
+ Version.CURRENT
+ "], so there is no need to override the version checks"
);
} catch (IllegalStateException e) {
// ok, means the version change is not supported
}
confirm(
terminal,
(nodeMetadata.nodeVersion().before(Version.CURRENT) ? TOO_OLD_MESSAGE : TOO_NEW_MESSAGE).replace(
"V_OLD",
nodeMetadata.nodeVersion().toString()
).replace("V_NEW", nodeMetadata.nodeVersion().toString()).replace("V_CUR", Version.CURRENT.toString())
);
PersistedClusterStateService.overrideVersion(Version.CURRENT, paths);
terminal.println(SUCCESS_MESSAGE);
}
// package-private for testing
OptionParser getParser() {
return parser;
}
}