Red Hat Knowledgebase

Welcome to Red Hat’s Knowledgebase information center. Find resources for resolving problems and troubleshooting. Log in to see all our solutions and articles. Some are restricted to verified users.

Login

If you don’t have a Red Hat account yet, register and open one! For details about these accounts, see Developer Subscription Information or Customer Account Information.

Find what you need

Search

Latest resources

Browse the latest published and updated knowledgebase

JSP compilation fails with "exceeding the 65535 bytes limit" limitation

VerifiedUpdated on Oct 28, 2026Subscription required

* JSP fails in JBoss with the following exception: ~~~ The code of metho­d_jsp­Servi­ce(Ht­tpSer­vletR­eques­t, HttpServletResponse) is exceeding the 65535 bytes limit at org.a­pache­.jasp­er.co­mpile­r.Def­aultE­rrorH­andle­r.jav­acErr­or(De­fault­Error­Handl­er.ja­va:84­) at org.a­pache­.jasp­er.co­mpile­r.Err­orDis­patch­er.ja­vacEr­ror(E­rrorD­ispat­cher.­java:­328) at org.a­pache­.jasp­er.co­mpile­r.JDT­Compi­ler.g­enera­teCla­ss(JD­TComp­iler.­java:­414) at org.a­pache­.jasp­er.co­mpile­r.Com­piler­.comp­ile(C­ompil­er.ja­va:29­7) ~~~ ~~~ ERROR [org.­apach­e.cat­alina­.core­.Cont­ainer­Base.­[jbos­s.web­].[de­fault­-host­].[/A­PP].[­jsp]] (http­-loca­lhost­/127.­0.0.1­:8080­-2) JBWEB000236: Servlet.service() for servlet jsp threw exception: org.a­pache­.jasp­er.Ja­sperE­xcept­ion: JBWEB004062: Unable to compile class for JSP: JBWEB004061: An error occurred at line: 227 in the generated java file The code of metho­d_jsp­Servi­ce(Ht­tpSer­vletR­eques­t, HttpServletResponse) is exceeding the 65535 bytes limit JBWEB004211: Stacktrace: at org.a­pache­.jasp­er.co­mpile­r.Def­aultE­rrorH­andle­r.jav­acErr­or(De­fault­Error­Handl­er.ja­va:85­) [jbos­sweb-­7.2.2­.Fina­l-red­hat-1­.jar:­7.2.2­.Fina­l-red­hat-1­] at org.a­pache­.jasp­er.co­mpile­r.Err­orDis­patch­er.ja­vacEr­ror(E­rrorD­ispat­cher.­java:­69) [jbos­sweb-­7.2.2­.Fina­l-red­hat-1­.jar:­7.2.2­.Fina­l-red­hat-1­] at org.a­pache­.jasp­er.co­mpile­r.JDT­Compi­ler.g­enera­teCla­ss(JD­TComp­iler.­java:­447) [jbos­sweb-­7.2.2­.Fina­l-red­hat-1­.jar:­7.2.2­.Fina­l-red­hat-1­] at org.a­pache­.jasp­er.co­mpile­r.Com­piler­.comp­ile(C­ompil­er.ja­va:36­1) [jbos­sweb-­7.2.2­.Fina­l-red­hat-1­.jar:­7.2.2­.Fina­l-red­hat-1­] at org.a­pache­.jasp­er.co­mpile­r.Com­piler­.comp­ile(C­ompil­er.ja­va:33­9) [jbos­sweb-­7.2.2­.Fina­l-red­hat-1­.jar:­7.2.2­.Fina­l-red­hat-1­] at org.a­pache­.jasp­er.co­mpile­r.Com­piler­.comp­ile(C­ompil­er.ja­va:32­6) [jbos­sweb-­7.2.2­.Fina­l-red­hat-1­.jar:­7.2.2­.Fina­l-red­hat-1­] at org.a­pache­.jasp­er.Js­pComp­ilati­onCon­text.­compi­le(Js­pComp­ilati­onCon­text.­java:­606) [jbos­sweb-­7.2.2­.Fina­l-red­hat-1­.jar:­7.2.2­.Fina­l-red­hat-1­]... ~~~

Solution

HPE Morpheus VM Essentials – Audio Device Support and Linux RDP Audio Workaround

In progressUpdated on Oct 28, 2026Subscription required

When running Red Hat Enterprise Linux (RHEL) virtual machines under certain VM configurations, virtual PCI audio devices may present specific behavior and support limitations. This article outlines the support status for virtual PCI audio devices in HPE VM Essentials, known issues, and customer convenience workarounds using RDP audio.

Solution

Argo Rollouts UI fails to load in OpenShift GitOps v1.22.0 and v.1.22.1

In progressUpdated on Oct 28, 2026Subscription required

- Setting `spec­.serv­er.en­ableR­ollou­tsUI: true` in the `ArgoCD` custom resource does not load the Argo Rollouts UI extension as expected- Argo Rollouts UI extension fails to load in the Argo CD web UI in OpenShift GitOps 1.22, producing a `TypeError: Cannot read properties of undefined (reading '­;hasO­wnPro­perty­'­;)` in the browser console- *This issue only affects OpenShift GitOps v1.22.0 and v1.22.1*

Solution

Satellite Web UI pages redirect to malformed URLs resulting in RoutingError

VerifiedUpdated on Oct 28, 2026Subscription required

* When navigating to certain pages in the **Red Hat Satellite 6 WebUI** such as `Content > Products, Content Credentials, or Sync Plans`, the browser redirects to a malformed, recursively URL-encoded path: ~~~ https­://sa­telli­te.ex­ample­.com/­%2525­25252­52525­25252­Fbast­ion ~~~

Solution

Does CVE-2026-111497 impact Apache httpd?

VerifiedUpdated on Oct 28, 2026Subscription required

* Does [CVE-­2026-­11149­7](ht­tps:/­/acce­ss.re­dhat.­com/s­ecuri­ty/cv­e/cve­-2026­-1114­97) impact Apache httpd? JBoss Core Services (JBCS) is shown as affected but does it impact other httpd distributions?

Solution

Changing StorageClass for Existing PVCs

VerifiedUpdated on Oct 28, 2026Subscription required

* Is it possible to change the StorageClass of an existing PVC that is already bound to a PersistentVolume (PV)?

Solution

Running rhc connect displays a warning "cannot get the user profile"

VerifiedUpdated on Oct 28, 2026Subscription required

When registering a system to Red Hat services using the `rhc` command, the registration completes successfully but the following warning is displayed: ~~~ The following errors were encountered during connect: TYPE STEP ERROR WARN Remote Host Configuration cannot get the user profile ~~~

Solution

How to disable compromised "emSign ECC Root CA \- G3" and "AAA Certificate Services" CA root certificates on Agent-based Installer OCP environments

VerifiedUpdated on Oct 28, 2026Subscription required

- Compromised eMudhra intermediate CA certificates can still be trusted on some OpenShift clusters even after RHCOS / *`ca-certificates`* updates for [CVE-­2026-­11440­6](ht­tps:/­/acce­ss.re­dhat.­com/s­ecuri­ty/cv­e/cve­-2026­-1144­06)- Node OS trust-store mitigation ([KCS 71493­47](h­ttps:­//acc­ess.r­edhat­.com/­solut­ions/­71493­47)) does **not** remove compromised roots that were copied into *`ope­nshif­t-con­fig/u­ser-c­a-bun­dle`*­- Customer must manually remove all CAs, except their own, from *`user-ca-bundle`*

Solution
Explore articles and solutions that other Red Hat customers are investigating

Solutions

Solve specific problems that has been raised with Red Hat

nfsd RPC fragment too large and RPC timeouts on clients

VerifiedUpdated on Oct 28, 2026Subscription required

- NFS clients gets RPC timeouts: ~~~ nfs: server my_nfs_server not responding, timed out ~~~ - The following messages appears on NFS server as well: ~~~ server kernel: svc: svc_tcp_read_marker nfsd RPC fragment too large: 1048708 ~~~ - Issue is seen during I/O intensive operations.

Openshift Update Service pod fails with error relea­se-ma­nifes­ts/re­lease­-meta­data not...

UnverifiedUpdated on Oct 27, 2026Subscription required

- After installing OpenShift Update Service (OSUS), and created an update service application, the pod fails with the error `'release-manifests/release-metadata' not found`: ~~~ TRACE cincinnati::plugins::internal::graph_builder::release_scrape_dockerv2::registry] [4.Y.Z-image_name] Downloading layer sha256:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx TRACE cincinnati::plugins::internal::graph_builder::release_scrape_dockerv2::registry] [4.Y.Z-image_name] Looking for release-manifests/release-metadata in archive sha256:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx with xxxxxx bytes DEBUG cincinnati::plugins::internal::graph_builder::release_scrape_dockerv2::registry] [4.Y.Z-image_name] Could not assemble metadata from layer (sha256:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx): 'release-manifests/release-metadata' not found ~~~

Graph builder container of UpdateService instance is getting OOMKilled

VerifiedUpdated on Oct 27, 2026Subscription required

- The `service` pods created by the OpenShift Update Service operator are stuck in `crashloobackoff` state. ~~~ $ oc get pods -n openshift-update-service NAME READY STATUS RESTARTS AGE service-xxxx 1/2 CrashLoopBackOff 8 2m service-xxxx 1/2 CrashLoopBackOff 8 2m updateservice-operator-xxxx 1/1 Running 0 2h ~~~ - The `graph-builder` container is getting constantly getting restarted due to invoking OOMKiller frequently. ~~~ lastState: terminated: containerID: cri-o://cbxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx exitCode: 137 <============= finishedAt: '2021-08-16T05:08:32Z' reason: OOMKilled <============= startedAt: '2021-08-16T05:08:13Z' name: graph-builder ~~~

Articles

Technical briefs, reference architectures, and early stages of documentation

Optimizing ODF PersistentVolumes for Windows VMs

Updated on Oct 27, 2026Subscription required

Red Hat OpenShift Virtualization can run virtual machines with Microsoft Windows. Red Hat OpenShift Data Foundation can provide PersistentVolumes which can be used as disks by virtual machines. A combination of the two products, and the use of Windows inside the VMs may benefit from tuning storage options for improving performance.

Red Hat Case Management - Attachment Service API Guide

Updated on Oct 13, 2026Subscription required

This document is the API usage guide for the Red Hat Case Management Attachment Service. It covers authentication, upload (single part and multipart up to 5 TB), download, deletion, status tracking, and metadata listing for file attachments on Red Hat support cases. The intended audience is developers and integration engineers building clients that interact with the attachment APIs at `https://api.access.redhat.com/support`.

Oracle Database on OpenShift Virtualization (OCP-V) On-Premises

Updated on Oct 12, 2026

This Article serves as a centralized index for tested and supported configurations, performance validations, and reference architectures for running Oracle Database workloads on OpenShift Virtualization.

Latest discussions in the Red Hat Community

Ability to fallback to nouveau driver when NVidia driver fails to load

Started Wednesday, October 14, 2026 at 3:34:53 PM
Red Hat Enterprise Linux

New RHCA Certification paths are a disaster

Started Tuesday, October 13, 2026 at 5:08:59 PM
Other

RHEL 8 httpd PHP directives not working on html file

Started Monday, October 12, 2026 at 8:00:00 PM
Red Hat Enterprise Linux
Meet with other Red Hat users, ask questions, collaborate to solve problems, and connect with our very own Red Hat engineers and moderators - the experts behind our products. Visit our community
Visit our community

Get support

Support cases

Get answers quickly by opening a support case with us.

Live chat

Directly access our support engineers during weekday business hours.

Call or email

Speak directly with a Red Hat Support expert by phone or through email.

Explore the entire customer portal for other resources

ProductsDocumentationSecurity