{"id":44131,"date":"2026-05-04T08:12:00","date_gmt":"2026-05-04T06:12:00","guid":{"rendered":"https:\/\/www.dbi-services.com\/blog\/?p=44131"},"modified":"2026-04-29T14:32:48","modified_gmt":"2026-04-29T12:32:48","slug":"em-90000-ssl-error-with-goldengate-targets-in-oem","status":"publish","type":"post","link":"https:\/\/www.dbi-services.com\/blog\/em-90000-ssl-error-with-goldengate-targets-in-oem\/","title":{"rendered":"EM-90000 SSL Error With GoldenGate Targets in OEM"},"content":{"rendered":"\n

In this blog, I will explain what needs to be done when registering GoldenGate targets behind NGINX reverse proxy in the Enterprise Manager<\/strong>. More specifically, we will see how to avoid the EM-90000<\/code> error related to an SSLHandshakeException<\/code>.<\/p>\n\n\n\n

If you are upgrading to GoldenGate 26ai and migrating from Classic to Microservices Architecture<\/a>, you must re-discover GoldenGate targets in the Enterprise Manager<\/strong>. The discovery module settings vary from one setup to another, but for a GoldenGate deployment exposed via an NGINX reverse proxy, you should set up the discovery module<\/strong> with the following:<\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n

While this could be enough in some GoldenGate setups, it will fail if the certificate chain is not trusted by the OEM agent<\/strong>. In fact, if you run a discovery of your host with the settings mentioned above, no target will be discovered. This is especially tricky, since the Enterprise Manager will tell you “Discover Now – Completed Successfully<\/strong><\/em>“.<\/p>\n\n\n\n

Open the ogg_so_logs.log.0<\/code> file in the agent_inst\/sysman\/emd<\/code> directory of your target agent. You will see that the discovery has failed with the following error : INFO: Exception occured when tried with SSL deployment. SSLHandshakeException<\/code>.<\/p>\n\n\n\n

oracle@vmogg:~ [emagent] vim ogg_so_logs.log.0\nApr 19, 2026 8:01:32 AM com.oracle.sysman.goldengate.discovery.GoldenGateDiscovery createDiscovery\nINFO: Discovery : Discovering Oracle Goldengate Instances . Discovery parameters values are , Port=443, UserName=ogg, HostName=vmogg, OGG Mode=Microservices, EMStateDir=\/u01\/app\/oracle\/agent_24ai\/agent_inst\nApr 19, 2026 8:01:32 AM com.oracle.sysman.goldengate.discovery.GoldenGateDiscovery createDiscovery\nINFO: Discovery :Target name prefix =oggtest:\nApr 19, 2026 8:01:32 AM com.oracle.sysman.goldengate.discovery.GoldenGateDiscovery createDiscovery\nINFO: agentTrustLocation:\/u01\/app\/oracle\/agent_24ai\/agent_inst\/sysman\/config\/montrust\/AgentTrust.jks\nApr 19, 2026 8:01:32 AM com.oracle.sysman.goldengate.discovery.GoldenGateMicroServicesDiscovery getJSONDataFromUrl\nINFO: Discovery : Invoking URL request :https:\/\/vmogg:443\/services\/v2\/deployments\nApr 19, 2026 8:01:32 AM com.oracle.sysman.goldengate.discovery.GoldenGateMicroServicesDiscovery getJSONDataFromUrlForSSL\nINFO: Trying to connect as a ssl connection https:\/\/vmogg:443\/services\/v2\/deployments\nApr 19, 2026 8:01:32 AM com.oracle.sysman.goldengate.discovery.GoldenGateMicroServicesDiscovery getJSONDataFromUrlForSSL\nINFO: SSLHandshakeException while getting response for URL:https:\/\/vmogg:443\/services\/v2\/deployments . javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target\nApr 19, 2026 8:01:32 AM com.oracle.sysman.goldengate.discovery.GoldenGateMicroServicesDiscovery getJSONDataFromUrl\nINFO: Exception occured when tried with SSL deployment. SSLHandshakeException: Failed to connect to ssl Microservices . Retrying via non ssl microservices. Trying with http.\nApr 19, 2026 8:01:32 AM com.oracle.sysman.goldengate.discovery.GoldenGateMicroServicesDiscovery getJSONDataFromUrl\nSEVERE: For the Url = http:\/\/vmogg:443\/services\/v2\/deployments , HTTP\/response error code = 307\nApr 19, 2026 8:01:32 AM com.oracle.sysman.goldengate.discovery.GoldenGateMicroServicesDiscovery generateTargetsXML\nSEVERE: Exception getting response from URL:https:\/\/vmogg:443\/services\/v2\/deployments - com.oracle.sysman.goldengate.discovery.GoldenGateDiscovery$GGDiscoveryException: Discovery failed : HTTP error code : 307 from URL:http:\/\/vmogg:443\/services\/v2\/deployments\nApr 19, 2026 8:01:32 AM com.oracle.sysman.goldengate.discovery.GoldenGateDiscovery main\nSEVERE: Exception during Targets discovery: EM-90000 - Target Discovery failed. Internal Error. Please contact System Administrator. - com.oracle.sysman.goldengate.discovery.GoldenGateDiscovery$GGDiscoveryException: EM-90000 - Target Discovery failed. Internal Error. Please contact System Administrator.<\/code><\/pre>\n\n\n\n
The problem here is that the OEM agent does not trust the certificate chain<\/strong> being used in your GoldenGate installation. For the discovery (and the monitoring) to work, you need to register the certificates in the agent’s truststore<\/strong>.<\/p>\n\n\n\n
Displaying the content of the truststore<\/h2>\n\n\n\n
First, let’s have a look at the content of the agent’s truststore. To do so, use the keytool<\/code> utility shipped with the agent. Here is an example of a default AgentTrust.jks<\/code> content. When prompted for the keystore password, use the configured truststore password (welcome<\/code>, by default).<\/p>\n\n\n\n
oracle@vmogg:~ [emagent] \/u01\/app\/oracle\/agent_24ai\/agent_24.1.0.0.0\/oracle_common\/jdk\/bin\/keytool -list -keystore \/u01\/app\/oracle\/agent_24ai\/agent_inst\/sysman\/config\/montrust\/AgentTrust.jks\nEnter keystore password:\nKeystore type: JKS\nKeystore provider: SUN\n\nYour keystore contains 9 entries\n\nverisignclass1pca, Oct 20, 2009, trustedCertEntry,\nCertificate fingerprint (SHA-256): 13:B8:4A:BA:EC:A3:DE:8C:71:9A:06:7D:E8:CF:18:5F:65:DC:19:E0:3E:BD:92:C2:0B:D3:8C:75:09:7B:E1:13\nverisignclass3ca, Oct 20, 2009, trustedCertEntry,\nCertificate fingerprint (SHA-256): E7:68:56:34:EF:AC:F6:9A:CE:93:9A:6B:25:5B:7B:4F:AB:EF:42:93:5B:50:A2:65:AC:B5:CB:60:27:E4:4E:70\ngtecybertrustglobalca, Oct 20, 2009, trustedCertEntry,\nCertificate fingerprint (SHA-256): A5:31:25:18:8D:21:10:AA:96:4B:02:C7:B7:C6:DA:32:03:17:08:94:E5:FB:71:FF:FB:66:67:D5:E6:81:0A:36\nentrustsslca, Oct 20, 2009, trustedCertEntry,\nCertificate fingerprint (SHA-256): 62:F2:40:27:8C:56:4C:4D:D8:BF:7D:9D:4F:6F:36:6E:A8:94:D2:2F:5F:34:D9:89:A9:83:AC:EC:2F:FF:ED:50\nentrust2048ca, Oct 20, 2009, trustedCertEntry,\nCertificate fingerprint (SHA-256): D1:C3:39:EA:27:84:EB:87:0F:93:4F:C5:63:4E:4A:A9:AD:55:05:01:64:01:F2:64:65:D3:7A:57:46:63:35:9F\nverisignserverca, Oct 20, 2009, trustedCertEntry,\nCertificate fingerprint (SHA-256): 29:30:BD:09:A0:71:26:BD:C1:72:88:D4:F2:AD:84:64:5E:C9:48:60:79:07:A9:7B:5E:D0:B0:B0:58:79:EF:69\ngtecybertrustca, Oct 20, 2009, trustedCertEntry,\nCertificate fingerprint (SHA-256): 52:7B:05:05:27:DF:52:9C:0F:7A:D0:0C:EF:1E:7B:A4:21:78:81:82:61:5C:32:6C:8B:6D:1A:20:61:A0:BD:7C\nentrustgsslca, Oct 20, 2009, trustedCertEntry,\nCertificate fingerprint (SHA-256): 2F:2F:87:02:A6:ED:EC:B6:46:92:94:BC:A0:40:F6:3B:88:49:42:1F:CE:E1:C3:7D:1C:FB:EE:89:DC:CD:43:83\nverisignclass2ca, Oct 20, 2009, trustedCertEntry,\nCertificate fingerprint (SHA-256): BD:46:9F:F4:5F:AA:E7:C5:4C:CB:D6:9D:3F:3B:00:22:55:D9:B0:6B:10:B1:D0:FA:38:8B:F9:6B:91:8B:2C:E9\n\nWarning:\nuses a 1024-bit RSA key which is considered a security risk. This key size will be disabled in a future update.\nuses a 1024-bit RSA key which is considered a security risk. This key size will be disabled in a future update.\nuses a 1024-bit RSA key which is considered a security risk. This key size will be disabled in a future update.\nuses a 1024-bit RSA key which is considered a security risk. This key size will be disabled in a future update.\nuses a 1000-bit RSA key which is considered a security risk and is disabled.\nuses a 1024-bit RSA key which is considered a security risk. This key size will be disabled in a future update.\nuses a 1024-bit RSA key which is considered a security risk. This key size will be disabled in a future update.\nuses a 1024-bit RSA key which is considered a security risk. This key size will be disabled in a future update.<\/code><\/pre>\n\n\n\n
Importing the certificate in the truststore<\/h2>\n\n\n\n
Let’s add the certificate in the agent’s truststore with the following command.<\/p>\n\n\n\n
\/u01\/app\/oracle\/agent_24ai\/agent_24.1.0.0.0\/oracle_common\/jdk\/bin\/keytool -importcert -alias ogg_capath -file \/path\/to\/ogg_certs\/RootCA_cert.pem -keystore \/u01\/app\/oracle\/agent_24ai\/agent_inst\/sysman\/config\/montrust\/AgentTrust.jks<\/code><\/pre>\n\n\n\n
If you are not sure which file you should add, keep in mind that it should be the same file you are using in the OGG_CLIENT_TLS_CAPATH<\/code> environment variable when loading the GoldenGate environment and connecting to your deployments with the adminclient<\/code>.<\/p>\n\n\n\n
oracle@vmogg:~ [emagent] export OGG_CLIENT_TLS_CAPATH=\/path\/to\/ogg_certs\/RootCA_cert.pem\noracle@vmogg:~ [emagent] \/u01\/app\/oracle\/agent_24ai\/agent_24.1.0.0.0\/oracle_common\/jdk\/bin\/keytool -importcert -alias ogg_capath -file $OGG_CLIENT_TLS_CAPATH -keystore \/u01\/app\/oracle\/agent_24ai\/agent_inst\/sysman\/config\/montrust\/AgentTrust.jks\nEnter keystore password:\nOwner: CN=OGG RootCA, O=OGG ROOT CA, C=AU\nIssuer: CN=OGG RootCA, O=OGG ROOT CA, C=AU\nSerial number: 1a11d06e7d73700aa85e35ffc0ce4a27dcfdaf7d\nValid from: Fri Mar 21 15:22:22 GMT 2026 until: Mon Mar 18 15:22:22 GMT 2036\nCertificate fingerprints:\nSHA1: 3C:99:5B:3A:D9:A4:64:6D:23:F0:0A:48:16:FA:AF:85:BD:26:E3:C7\nSHA256: 8D:6F:1D:67:ED:D9:7B:C0:C8:0E:D1:0E:50:2F:15:25:45:5D:F2:1D:A2:AB:22:C7:2D:AE:05:19:F1:DE:28:31\nSignature algorithm name: SHA256withRSA\nSubject Public Key Algorithm: 4096-bit RSA key\nVersion: 3\n\nExtensions:\n\n#1: ObjectId: 2.5.29.35 Criticality=false\n\nAuthorityKeyIdentifier [\nKeyIdentifier [\n0000: E3 BC BD 71 43 FD 85 B0 48 E1 44 A1 81 04 FA A9 \u2026qC\u2026H.D\u2026..\n0010: 1D 1C 45 16 ..E.\n]\n]\n\n#2: ObjectId: 2.5.29.19 Criticality=true\n\nBasicConstraints:[\nCA:true\nPathLen:2147483647\n]\n\n#3: ObjectId: 2.5.29.14 Criticality=false\n\nSubjectKeyIdentifier [\nKeyIdentifier [\n0000: E3 BC BD 71 43 FD 85 B0 48 E1 44 A1 81 04 FA A9 \u2026qC\u2026H.D\u2026..\n0010: 1D 1C 45 16 ..E.\n]\n]\n\nTrust this certificate? [no]: yes\nCertificate was added to keystore<\/code><\/pre>\n\n\n\n
If you check the content of the keystore again, you will see the new entry under the alias you just added. We will use the -alias ogg_capath<\/code> option to only display the new alias.<\/p>\n\n\n\n
oracle@vmogg:~ [emagent] \/u01\/app\/oracle\/agent_24ai\/agent_24.1.0.0.0\/oracle_common\/jdk\/bin\/keytool -list -keystore \/u01\/app\/oracle\/agent_24ai\/agent_inst\/sysman\/config\/montrust\/AgentTrust.jks -alias ogg_capath\nEnter keystore password:\nogg_capath, Apr 19, 2026, trustedCertEntry,\nCertificate fingerprint (SHA-256): 8D:6F:1D:67:ED:D9:7B:C0:C8:0E:D1:0E:50:2F:15:25:45:5D:F2:1D:A2:AB:22:C7:2D:AE:05:19:F1:DE:28:31<\/code><\/pre>\n\n\n\n
Without modifying anything in the Enterprise Manager, you can re-run the discovery<\/strong>. This time, the GoldenGate targets will be discovered ! To promote the new targets, just click on the number of targets discovered<\/strong>. You can also go in the Setup > Add Target > Auto Discovery Results<\/strong><\/em> section to view all discovered targets. Once this is done, the new targets will be monitored<\/strong>.<\/p>\n\n\n\n
To summarize, in this NGINX context, OEM GoldenGate discovery fails with EM-90000<\/code> due to missing CA certificates in the agent truststore. Importing the proper CA chain into AgentTrust.jks<\/code> resolves the SSL handshake failure.<\/p>\n","protected":false},"excerpt":{"rendered":"
In this blog, I will explain what needs to be done when registering GoldenGate targets behind NGINX reverse proxy in the Enterprise Manager. More specifically, we will see how to avoid the EM-90000 error related to an SSLHandshakeException. If you are upgrading to GoldenGate 26ai and migrating from Classic to Microservices Architecture, you must re-discover […]<\/p>\n","protected":false},"author":152,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[3787,59],"tags":[4017,4011,4006,328,4008,761,3730,4013,1214],"type_dbi":[4016,4012,4007,3740,4009,4010,3881,4014,4005],"class_list":["post-44131","post","type-post","status-publish","format-standard","hentry","category-goldengate","category-oracle","tag-discover","tag-em-90000","tag-enterprise","tag-goldengate","tag-manager","tag-oem","tag-ogg","tag-sslhandshakeexception","tag-target","type-discover","type-em-90000","type-enterprise","type-goldengate","type-manager","type-oem","type-ogg","type-sslhandshakeexception","type-target"],"acf":[],"yoast_head":"\nEM-90000 SSL Error With GoldenGate Targets in OEM - dbi Blog<\/title>\n<meta name=\"description\" content=\"When discovering targets in the Enterprise Manager from a NGINX GoldenGate setup, pay attention to certificate errors.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.dbi-services.com\/blog\/em-90000-ssl-error-with-goldengate-targets-in-oem\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"EM-90000 SSL Error With GoldenGate Targets in OEM\" \/>\n<meta property=\"og:description\" content=\"When discovering targets in the Enterprise Manager from a NGINX GoldenGate setup, pay attention to certificate errors.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.dbi-services.com\/blog\/em-90000-ssl-error-with-goldengate-targets-in-oem\/\" \/>\n<meta property=\"og:site_name\" content=\"dbi Blog\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-04T06:12:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.dbi-services.com\/blog\/wp-content\/uploads\/sites\/2\/2026\/04\/ogg_blog_setup_discovery_module_oem.png\" \/>\n\t<meta property=\"og:image:width\" content=\"904\" \/>\n\t<meta property=\"og:image:height\" content=\"221\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Julien Delattre\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Julien Delattre\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.dbi-services.com\\\/blog\\\/em-90000-ssl-error-with-goldengate-targets-in-oem\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.dbi-services.com\\\/blog\\\/em-90000-ssl-error-with-goldengate-targets-in-oem\\\/\"},\"author\":{\"name\":\"Julien Delattre\",\"@id\":\"https:\\\/\\\/www.dbi-services.com\\\/blog\\\/#\\\/schema\\\/person\\\/764ab019cc9dec42655b4c6b9b8e474e\"},\"headline\":\"EM-90000 SSL Error With GoldenGate Targets in OEM\",\"datePublished\":\"2026-05-04T06:12:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.dbi-services.com\\\/blog\\\/em-90000-ssl-error-with-goldengate-targets-in-oem\\\/\"},\"wordCount\":454,\"commentCount\":0,\"image\":{\"@id\":\"https:\\\/\\\/www.dbi-services.com\\\/blog\\\/em-90000-ssl-error-with-goldengate-targets-in-oem\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.dbi-services.com\\\/blog\\\/wp-content\\\/uploads\\\/sites\\\/2\\\/2026\\\/04\\\/ogg_blog_setup_discovery_module_oem.png\",\"keywords\":[\"discover\",\"em-90000\",\"enterprise\",\"GoldenGate\",\"manager\",\"OEM\",\"ogg\",\"SSLHandshakeException\",\"target\"],\"articleSection\":[\"GoldenGate\",\"Oracle\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.dbi-services.com\\\/blog\\\/em-90000-ssl-error-with-goldengate-targets-in-oem\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.dbi-services.com\\\/blog\\\/em-90000-ssl-error-with-goldengate-targets-in-oem\\\/\",\"url\":\"https:\\\/\\\/www.dbi-services.com\\\/blog\\\/em-90000-ssl-error-with-goldengate-targets-in-oem\\\/\",\"name\":\"EM-90000 SSL Error With GoldenGate Targets in OEM - 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