[GEODE-9437] Redis session dunit tests are flaky

• Type: Test
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Component/s: redis
• Assignee: Unassigned
• Reporter: Jens Deppe
• Created: 19/Jul/21 17:42
• Updated: 06/May/22 23:19
• Resolved: 06/May/22 23:19

Description

The Redis session-related DUnit tests will sometimes fail with errors such as:

org.apache.geode.redis.session.RedisSessionDUnitTest > should_storeSession FAILED
    org.springframework.web.client.HttpServerErrorException$InternalServerError: 500 Server Error: [no body]
        at org.springframework.web.client.HttpServerErrorException.create(HttpServerErrorException.java:100)
        at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:188)
        at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:125)
        at org.springframework.web.client.ResponseErrorHandler.handleError(ResponseErrorHandler.java:63)
        at org.springframework.web.client.RestTemplate.handleResponse(RestTemplate.java:819)
        at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:777)
        at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:711)
        at org.springframework.web.client.RestTemplate.postForEntity(RestTemplate.java:468)
        at org.apache.geode.redis.session.SessionDUnitTest.createNewSessionWithNote0(SessionDUnitTest.java:207)
        at org.apache.geode.redis.session.SessionDUnitTest.lambda$createNewSessionWithNote$1(SessionDUnitTest.java:201)
        at io.github.resilience4j.retry.Retry.lambda$decorateCallable$5(Retry.java:306)
        at org.apache.geode.redis.session.SessionDUnitTest.createNewSessionWithNote(SessionDUnitTest.java:201)
        at org.apache.geode.redis.session.RedisSessionDUnitTest.should_storeSession(RedisSessionDUnitTest.java:88)

org.apache.geode.redis.session.RedisSessionDUnitTest > should_propagateSession_toOtherServers FAILED
    org.springframework.web.client.HttpServerErrorException$InternalServerError: 500 Server Error: [{"timestamp":"2021-07-19T15:38:49.855+00:00","status":500,"error":"Internal Server Error","path":"/addSessionNote"}]
        at org.springframework.web.client.HttpServerErrorException.create(HttpServerErrorException.java:100)
        at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:188)
        at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java:125)
        at org.springframework.web.client.ResponseErrorHandler.handleError(ResponseErrorHandler.java:63)
        at org.springframework.web.client.RestTemplate.handleResponse(RestTemplate.java:819)
        at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:777)
        at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:711)
        at org.springframework.web.client.RestTemplate.postForEntity(RestTemplate.java:468)
        at org.apache.geode.redis.session.SessionDUnitTest.createNewSessionWithNote0(SessionDUnitTest.java:207)
        at org.apache.geode.redis.session.SessionDUnitTest.lambda$createNewSessionWithNote$1(SessionDUnitTest.java:201)
        at io.github.resilience4j.retry.Retry.lambda$decorateCallable$5(Retry.java:306)
        at org.apache.geode.redis.session.SessionDUnitTest.createNewSessionWithNote(SessionDUnitTest.java:201)
        at org.apache.geode.redis.session.RedisSessionDUnitTest.should_propagateSession_toOtherServers(RedisSessionDUnitTest.java:97)

It's unclear exactly what is causing the problem as it seems to be related to lettuce when servers stop/restart and lettuce tries to resubmit commands.