https://bz.apache.org/bugzilla/show_bug.cgi?id=64859
Bug ID: 64859
Summary: Assertion errros
org.apache.catalina.mapper.Mapper.internalMap(Mapper.j
ava:744)
Product: Tomcat 9
Version: 9.0.34
Hardware: All
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: -----
Created attachment 37538
--> https://bz.apache.org/bugzilla/attachment.cgi?id=37538&action=edit
Full stacktraces for mentioned log entries
We had observed the following assertion errors, total 356 cases.
"java.lang.AssertionError
at org.apache.catalina.mapper.Mapper.internalMap(Mapper.java:744)"
Above errors were preceded by the two log info entries
"org.apache.catalina.connector.CoyoteAdapter.checkRecycled
Encountered a non-recycled request and recycled it forcedly.
org.apache.catalina.connector.CoyoteAdapter$RecycleRequiredException"
"org.apache.coyote.http11.Http11Processor.service Error parsing HTTP request
header
Note: further occurrences of HTTP request parsing errors will be logged at
DEBUG level.
java.lang.IllegalStateException: Unexpected state: headers already parsed.
Buffer not recycled?"
Full log entries are in the attachment.
Assertion errors had occurred for 2 hours and then the problem disappeared.
After a few hours, we had noticed another two cases this time not preceded by
any connected log entries. After that, we restarted the problematic instance
and the situation has not repeated anymore.
Almost the same configuration and application are in use for weeks so it's
rather not an issue.
Application and installation:
Spring Boot 2.0 + Vaadin 8
The application running in Kubernetes based on image
tomcat:9.0.34-jdk8-openjdk-slim
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