Hi,
In solr8.11.2 we were using the below code where the HttpClient object is
created with SSLContextFactory to connect to ssl enabled solr.
Code Snippet using solr 8.11.2:
builder = new
CloudSolrClient.Builder(Collections.singletonList(mServerDetails.getZookeeperUrl()),
Optional.empty())
.withHttpClient(getSecureClient())
reutrn builder.build();
private CloseableHttpClient getSecureClient() {
CloseableHttpClient cHttpClient = null;
try {
TrustStrategy acceptingTrustStrategy = (cert, authType) -> true;
SSLContext sslContext = SSLContexts.custom().loadTrustMaterial(null,
acceptingTrustStrategy).build();
SSLConnectionSocketFactory sslConnectionSocketFactory = new
SSLConnectionSocketFactory(sslContext, new DefaultHostnameVerifier());
Registry<ConnectionSocketFactory> socketFactoryRegistry =
RegistryBuilder.<ConnectionSocketFactory>create().
register(SCHEMA_HTTPS, sslConnectionSocketFactory).build();
BasicHttpClientConnectionManager connectionManager = new
BasicHttpClientConnectionManager(socketFactoryRegistry);
cHttpClient =
HttpClients.custom().setSSLSocketFactory(sslConnectionSocketFactory).setConnectionManager(connectionManager).build();
} catch(NoSuchAlgorithmException | KeyStoreException |
KeyManagementException ex)
{
mLogger.atError().log("Processing httpclient failed.: {}", ex);
}
return cHttpClient;
}
However, withHttpClient() in solr9.1.0 got updated and it is only accepting
Http2SolrClient instead of HttpClient.
Following the documentation here:
https://solr.apache.org/guide/solr/latest/deployment-guide/solrj.html
We tried to connect to ssl enabled solr using,
This code leads to an NPE:
List<String> list = new ArrayList<>();
list.add(mServerDetails.getZookeeperUrl());
CloudHttp2SolrClient.Builder newBuilder = new
CloudHttp2SolrClient.Builder(list, Optional.empty());
return newBuilder.build();
This code is throwing below "Missing SSLContextFactory" error. Please find the
stacktrace,
=====================================================
DEBUG | 2023-01-24 14:31:50 | [Thread-175] impl.SolrServiceImpl
(SolrServiceImpl.java:474) - Zookeeper Protocol: HTTPS, enableSSLFlag: true
ERROR | 2023-01-24 14:31:50 | [Thread-175] impl.SolrServiceImpl
(SolrServiceImpl.java:218) - Failed to get the cluster status from the server.
org.apache.solr.client.solrj.SolrServerException:
java.lang.NullPointerException: Missing SslContextFactory
at
org.apache.solr.client.solrj.impl.LBSolrClient.doRequest(LBSolrClient.java:445)
~[?:?]
at
org.apache.solr.client.solrj.impl.LBSolrClient.request(LBSolrClient.java:371)
~[?:?]
at
org.apache.solr.client.solrj.impl.CloudSolrClient.sendRequest(CloudSolrClient.java:1174)
~[?:?]
at
org.apache.solr.client.solrj.impl.CloudSolrClient.requestWithRetryOnStaleState(CloudSolrClient.java:880)
~[?:?]
at
org.apache.solr.client.solrj.impl.CloudSolrClient.request(CloudSolrClient.java:807)
~[?:?]
at org.apache.solr.client.solrj.SolrRequest.process(SolrRequest.java:234)
~[?:?]
at org.apache.solr.client.solrj.SolrRequest.process(SolrRequest.java:249)
~[?:?]
at com.zerog.ia.installer.actions.CustomAction.installSelf(Unknown
Source) ~[installer.zip:?]
at com.zerog.ia.installer.util.GenericInstallPanel$2.run(Unknown Source)
~[installer.zip:?]
Caused by: java.lang.NullPointerException: Missing SslContextFactory
at java.util.Objects.requireNonNull(Objects.java:246) ~[?:?]
at
org.eclipse.jetty.io.ssl.SslClientConnectionFactory.<init>(SslClientConnectionFactory.java:57)
~[?:?]
at
org.eclipse.jetty.client.HttpClient.newSslClientConnectionFactory(HttpClient.java:1208)
~[?:?]
at
org.eclipse.jetty.client.HttpClient.newSslClientConnectionFactory(HttpClient.java:1214)
~[?:?]
at
org.eclipse.jetty.client.HttpDestination.newSslClientConnectionFactory(HttpDestination.java:148)
~[?:?]
at
org.eclipse.jetty.client.HttpDestination.newSslClientConnectionFactory(HttpDestination.java:154)
~[?:?]
at
org.eclipse.jetty.client.HttpDestination.<init>(HttpDestination.java:94) ~[?:?]
at
org.eclipse.jetty.client.MultiplexHttpDestination.<init>(MultiplexHttpDestination.java:25)
~[?:?]
at
org.eclipse.jetty.http2.client.http.HttpDestinationOverHTTP2.<init>(HttpDestinationOverHTTP2.java:32)
~[?:?]
at
org.eclipse.jetty.http2.client.http.HttpClientTransportOverHTTP2.newHttpDestination(HttpClientTransportOverHTTP2.java:128)
~[?:?]
at
org.eclipse.jetty.client.HttpClient.lambda$resolveDestination$0(HttpClient.java:575)
~[?:?]
at
java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1705)
~[?:?]
at
org.eclipse.jetty.client.HttpClient.resolveDestination(HttpClient.java:573)
~[?:?]
at
org.eclipse.jetty.client.HttpClient.resolveDestination(HttpClient.java:551)
~[?:?]
at org.eclipse.jetty.client.HttpClient.send(HttpClient.java:599) ~[?:?]
at org.eclipse.jetty.client.HttpRequest.sendAsync(HttpRequest.java:780)
~[?:?]
at org.eclipse.jetty.client.HttpRequest.send(HttpRequest.java:767) ~[?:?]
at
org.apache.solr.client.solrj.impl.Http2SolrClient.request(Http2SolrClient.java:455)
~[?:?]
at
org.apache.solr.client.solrj.impl.LBSolrClient.doRequest(LBSolrClient.java:405)
~[?:?]
============================================
Here it is expecting SSLContextFactory while connecting to solr with the
zookeeper host. We also tried to use the method "withSSLConfig(sslConfig)" in
Http2SolrClient class. But the usage is something like
<
new Http2SolrClient.Builder().build;
public Builder withSSLConfig(SSLConfig sslConfig) {
this.sslConfig = sslConfig;
return this;
}
>
Here withSSLConfig() method requiring SSLConfig object containing parameters
like authClient, keystore, keystorePassword, trustore, truststorePassword. If
this method is to be used, where and what values are expected here? However, to
call this method in Builder() by default it is assigning defaultSSLConf. What
does this do?
Could you please let us know how to Build a CloudSlrClient object with
SSLConfig that can connect to SSL enabled solr9 machine with zookeeper URL?
Or is it mandated to pass solr URL's?
Thanks & Regards,
Keerthi Turakapalli
