adoroszlai commented on a change in pull request #2655:
URL: https://github.com/apache/ozone/pull/2655#discussion_r719326061
##########
File path:
hadoop-ozone/s3gateway/src/main/java/org/apache/hadoop/ozone/s3/OzoneClientProducer.java
##########
@@ -83,65 +75,20 @@ public OzoneClient createClient() throws
WebApplicationException,
return client;
}
- @PreDestroy
- public void destroy() throws IOException {
- client.close();
- }
-
private OzoneClient getClient(OzoneConfiguration config)
throws WebApplicationException {
OzoneClient ozoneClient = null;
try {
- SignatureInfo signatureInfo = signatureProcessor.parseSignature();
-
- String stringToSign = "";
- if (signatureInfo.getVersion() == Version.V4) {
- stringToSign =
- StringToSignProducer.createSignatureBase(signatureInfo, context);
- }
-
- String awsAccessId = signatureInfo.getAwsAccessId();
- validateAccessId(awsAccessId);
-
- UserGroupInformation remoteUser =
- UserGroupInformation.createRemoteUser(awsAccessId);
- if (OzoneSecurityUtil.isSecurityEnabled(config)) {
- LOG.debug("Creating s3 auth info for client.");
-
- if (signatureInfo.getVersion() == Version.NONE) {
- throw MALFORMED_HEADER;
- }
-
- OzoneTokenIdentifier identifier = new OzoneTokenIdentifier();
- identifier.setTokenType(S3AUTHINFO);
- identifier.setStrToSign(stringToSign);
- identifier.setSignature(signatureInfo.getSignature());
- identifier.setAwsAccessId(awsAccessId);
- identifier.setOwner(new Text(awsAccessId));
- if (LOG.isTraceEnabled()) {
- LOG.trace("Adding token for service:{}", omService);
- }
- Token<OzoneTokenIdentifier> token = new Token(identifier.getBytes(),
- identifier.getSignature().getBytes(StandardCharsets.UTF_8),
- identifier.getKind(),
- omService);
- remoteUser.addToken(token);
- }
+ this.remoteUser = UserGroupInformation.getCurrentUser();
ozoneClient =
- remoteUser.doAs((PrivilegedExceptionAction<OzoneClient>) () -> {
- return createOzoneClient();
- });
- } catch (OS3Exception ex) {
- if (LOG.isDebugEnabled()) {
- LOG.debug("Error during Client Creation: ", ex);
- }
- throw wrapOS3Exception(ex);
- } catch (Exception e) {
+ OzoneClientCache.getOzoneClientInstance(omServiceID,
Review comment:
> The previous `Hadoop3OmTransport` is unavailable as the
`OmTransportFactory` selects the OmTransport
> through the ServiceProvider (set to `GrpcOmTransport` in the META-INF file
for the s3gateway).
The META-INF file can list multiple implementations. Wouldn't it be
possible to choose between those based on Ozone configuration, and hence keep
both old and new transports in the same version of S3G? I think that would
make it easier for users to switch, rather than trying to install both versions
of Ozone (may not be possible with some installers / package managers).
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