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SQL: relax version lock between server and clients (#56148) (#56223) 

* Relax version lock between ES/SQL and clients

Allow older-than-server clients to connect, if these are past or on a
certain min release.

(cherry picked from commit 108f907297542ce649aa7304060aaf0a504eb699)
This commit is contained in:
Bogdan Pintea 2020-05-05 18:27:06 +02:00 committed by GitHub
parent cd3663e5fa
commit 0e5632dc3a
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4 changed files with 23 additions and 19 deletions
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10
x-pack/plugin/sql/jdbc/src/test/java/org/elasticsearch/xpack/sql/jdbc/VersionParityTests.java
View File

@ -26,7 +26,8 @@ import java.sql.SQLException;
public class VersionParityTests extends WebServerTestCase {
public void testExceptionThrownOnIncompatibleVersions() throws IOException, SQLException {
Version version = VersionUtils.randomVersionBetween(random(), Version.V_6_0_0, VersionUtils.getPreviousVersion(Version.CURRENT));
Version version = VersionUtils.randomVersionBetween(random(), null, VersionUtils.getPreviousVersion(Version.V_7_7_0));
logger.info("Checking exception is thrown for version {}", version);
prepareResponse(version);
String url = JdbcConfiguration.URL_PREFIX + webServerAddress();
@ -37,11 +38,14 @@ public class VersionParityTests extends WebServerTestCase {
}
public void testNoExceptionThrownForCompatibleVersions() throws IOException {
prepareResponse(null);
String url = JdbcConfiguration.URL_PREFIX + webServerAddress();
Version version = Version.CURRENT;
try {
do {
prepareResponse(version);
new JdbcHttpClient(JdbcConfiguration.create(url, null, 0));
version = VersionUtils.getPreviousVersion(version);
} while (version.compareTo(Version.V_7_7_0) >= 0);
} catch (SQLException sqle) {
fail("JDBC driver version and Elasticsearch server version should be compatible. Error: " + sqle);
}

5
x-pack/plugin/sql/sql-action/src/main/java/org/elasticsearch/xpack/sql/action/AbstractSqlQueryRequest.java
View File

@ -27,6 +27,7 @@ import org.elasticsearch.xpack.sql.proto.Mode;
import org.elasticsearch.xpack.sql.proto.Protocol;
import org.elasticsearch.xpack.sql.proto.RequestInfo;
import org.elasticsearch.xpack.sql.proto.SqlTypedParamValue;
import org.elasticsearch.xpack.sql.proto.SqlVersion;
import java.io.IOException;
import java.time.ZoneId;
@ -218,13 +219,13 @@ public abstract class AbstractSqlQueryRequest extends AbstractSqlRequest impleme
ActionRequestValidationException validationException = null;
// the version field is mandatory for drivers and CLI
Mode mode = requestInfo().mode();
if (mode != null && (Mode.isDedicatedClient(mode))) {
if (Mode.isDedicatedClient(mode)) {
if (requestInfo().version() == null) {
if (Strings.hasText(query())) {
validationException = addValidationError("[version] is required for the [" + mode.toString() + "] client",
validationException);
}
} else if (requestInfo().version().equals(Version.CURRENT.toString()) == false) {
} else if (SqlVersion.isClientCompatible(requestInfo().version()) == false) {
validationException = addValidationError("The [" + requestInfo().version() + "] version of the [" +
mode.toString() + "] " + "client is not compatible with Elasticsearch version [" + Version.CURRENT + "]",
validationException);

20
x-pack/plugin/sql/sql-cli/src/test/java/org/elasticsearch/xpack/sql/cli/CliSessionTests.java
View File

@ -5,9 +5,11 @@
*/
package org.elasticsearch.xpack.sql.cli;
import org.elasticsearch.Version;
import org.elasticsearch.cluster.ClusterName;
import org.elasticsearch.common.UUIDs;
import org.elasticsearch.test.ESTestCase;
import org.elasticsearch.test.VersionUtils;
import org.elasticsearch.xpack.sql.cli.command.CliSession;
import org.elasticsearch.xpack.sql.client.ClientException;
import org.elasticsearch.xpack.sql.client.ClientVersion;
@ -47,7 +49,8 @@ public class CliSessionTests extends ESTestCase {
public void testWrongServerVersion() throws Exception {
HttpClient httpClient = mock(HttpClient.class);
SqlVersion version = new SqlVersion((int)SqlVersion.V_7_7_0.major, SqlVersion.V_7_7_0.minor - 1, 0);
Version v = VersionUtils.randomVersionBetween(random(), null, VersionUtils.getPreviousVersion(Version.V_7_7_0));
SqlVersion version = new SqlVersion(v.major, v.minor, v.revision);
when(httpClient.serverInfo()).thenReturn(new MainResponse(randomAlphaOfLength(5), version.toString(),
ClusterName.DEFAULT.value(), UUIDs.randomBase64UUID()));
CliSession cliSession = new CliSession(httpClient);
@ -61,18 +64,9 @@ public class CliSessionTests extends ESTestCase {
public void testHigherServerVersion() throws Exception {
HttpClient httpClient = mock(HttpClient.class);
byte minor;
byte major;
if (randomBoolean()) {
minor = ClientVersion.CURRENT.minor;
major = (byte) (ClientVersion.CURRENT.major + 1);
} else {
minor = (byte) (ClientVersion.CURRENT.minor + 1);
major = ClientVersion.CURRENT.major;
}
when(httpClient.serverInfo()).thenReturn(new MainResponse(randomAlphaOfLength(5),
SqlVersion.fromString(major + "." + minor + ".23").toString(),
Version v = VersionUtils.randomVersionBetween(random(), Version.V_7_7_0, null);
SqlVersion version = new SqlVersion(v.major, v.minor, v.revision);
when(httpClient.serverInfo()).thenReturn(new MainResponse(randomAlphaOfLength(5), version.toString(),
ClusterName.DEFAULT.value(), UUIDs.randomBase64UUID()));
CliSession cliSession = new CliSession(httpClient);
cliSession.checkConnection();

5
x-pack/plugin/sql/sql-proto/src/main/java/org/elasticsearch/xpack/sql/proto/SqlVersion.java
View File

@ -141,4 +141,9 @@ public class SqlVersion implements Comparable<SqlVersion>{
public static boolean hasVersionCompatibility(SqlVersion version) {
return version.compareTo(V_7_7_0) >= 0;
}
public static boolean isClientCompatible(SqlVersion version) {
/* only client's of version 7.7.0 and later are supported as backwards compatible */
return V_7_7_0.compareTo(version) <= 0;
}
}