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[BUG?] Reverse proxy with Alpaca #93

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rbos opened this issue Aug 21, 2024 · 3 comments
Open

[BUG?] Reverse proxy with Alpaca #93

rbos opened this issue Aug 21, 2024 · 3 comments
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@rbos
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rbos commented Aug 21, 2024

We're running an ISLE site behind a reverse proxy, and when we save a media resource, it generates a lot of error message[0] when invoking a sub-service. When I dig into any of the subservices, it often boils down to complaints about being unable to access the file resource[1] using the external HTTPS url, which is inaccessible to ISLE because it's on the outside of the load-balancer, and ISLE is only configured to speak HTTP.

I can often patch the sub-services to search & replace the URL and speak http only, but that approach has been increasingly tedious and error-prone. Cantaloupe requires a custom delegates.rb, for instance.

Is it possible to have Alpaca hand HTTP urls off to sub-services and solve this problem?

I may be misunderstanding the problem, but I think this is what's been giving me issues.

[0]

alpaca-1      | WARN 17:04:04.837 [Camel (camel-1) thread #6 - seda://nodeIndex] (SedaConsumer) Error processing exchange. Exchange[]. Caused by: [org.apache.camel.http.common.HttpOperationFailedException - HTTP operation faile
d invoking http://milliner:8000/node/d7244cb5-7112-4564-95a5-6397148d167a with statusCode: 500]                                                                                                                                    
alpaca-1      | org.apache.camel.http.common.HttpOperationFailedException: HTTP operation failed invoking http://milliner:8000/node/d7244cb5-7112-4564-95a5-6397148d167a with statusCode: 500
alpaca-1      |         at org.apache.camel.component.http.HttpProducer.populateHttpOperationFailedException(HttpProducer.java:362)                                                                                                
alpaca-1      |         at org.apache.camel.component.http.HttpProducer.process(HttpProducer.java:246)                                                                                                                             alpaca-1      |         at org.apache.camel.support.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:66)                        
alpaca-1      |         at org.apache.camel.processor.SendDynamicProcessor.lambda$process$0(SendDynamicProcessor.java:195)                                                                                                         
alpaca-1      |         at org.apache.camel.support.cache.DefaultProducerCache.doInAsyncProducer(DefaultProducerCache.java:317)                                                                                                    alpaca-1      |         at org.apache.camel.processor.SendDynamicProcessor.process(SendDynamicProcessor.java:180)                                                                       
alpaca-1      |         at org.apache.camel.processor.errorhandler.RedeliveryErrorHandler$RedeliveryTask.redeliver(RedeliveryErrorHandler.java:779)                                                                                
alpaca-1      |         at org.apache.camel.impl.engine.DefaultReactiveExecutor$Worker.schedule(DefaultReactiveExecutor.java:148)                       
alpaca-1      |         at org.apache.camel.impl.engine.DefaultReactiveExecutor.scheduleMain(DefaultReactiveExecutor.java:60)                                                                                                      
alpaca-1      |         at org.apache.camel.processor.Pipeline.process(Pipeline.java:147)                                                                                                                                          
alpaca-1      |         at org.apache.camel.impl.engine.CamelInternalProcessor.process(CamelInternalProcessor.java:312)                                                                                                            
alpaca-1      |         at org.apache.camel.component.seda.SedaConsumer.sendToConsumers(SedaConsumer.java:274)
alpaca-1      |         at org.apache.camel.component.seda.SedaConsumer.doRun(SedaConsumer.java:187)                                                                                                                               
alpaca-1      |         at org.apache.camel.component.seda.SedaConsumer.run(SedaConsumer.java:130)   
alpaca-1      |         at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)                                                                                                               
alpaca-1      |         at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)                                                                                                               alpaca-1      |         at java.base/java.lang.Thread.run(Thread.java:840)                                                                                                                                                         
alpaca-1      |         Suppressed: org.apache.camel.http.common.HttpOperationFailedException: HTTP operation failed invoking http://milliner:8000/node/d7244cb5-7112-4564-95a5-6397148d167a with statusCode: 500                  
alpaca-1      |                 ... 17 common frames omitted                                                                                                                                                                       alpaca-1      |                 Suppressed: org.apache.camel.http.common.HttpOperationFailedException: HTTP operation failed invoking http://milliner:8000/node/d7244cb5-7112-4564-95a5-6397148d167a with statusCode: 500
alpaca-1      |                         ... 17 common frames omitted                                                                                                                                                               
alpaca-1      |                         Suppressed: org.apache.camel.http.common.HttpOperationFailedException: HTTP operation failed invoking http://milliner:8000/node/d7244cb5-7112-4564-95a5-6397148d167a with statusCode: 500
alpaca-1      |                                 ... 17 common frames omitted                                                                                                                                                       
alpaca-1      |                                 Suppressed: org.apache.camel.http.common.HttpOperationFailedException: HTTP operation failed invoking http://milliner:8000/node/d7244cb5-7112-4564-95a5-6397148d167a with statusCod
e: 500                                                                                                                                                                                                                             
alpaca-1      |                                         ... 17 common frames omitted                                                                                                                                               alpaca-1      |                                         Suppressed: org.apache.camel.http.common.HttpOperationFailedException: HTTP operation failed invoking http://milliner:8000/node/d7244cb5-7112-4564-95a5-6397148d167a with s
tatusCode: 500                                                                                                                                                                                                                     alpaca-1      |                                                 at org.apache.camel.component.http.HttpProducer.populateHttpOperationFailedException(HttpProducer.java:362)                                                        
alpaca-1      |                                                 at org.apache.camel.component.http.HttpProducer.process(HttpProducer.java:246)                                                                                     alpaca-1      |                                                 at org.apache.camel.support.AsyncProcessorConverterHelper$ProcessorToAsyncProcessorBridge.process(AsyncProcessorConverterHelper.java:66)                           
alpaca-1      |                                                 at org.apache.camel.processor.SendDynamicProcessor.lambda$process$0(SendDynamicProcessor.java:195)                                                                 alpaca-1      |                                                 at org.apache.camel.support.cache.DefaultProducerCache.doInAsyncProducer(DefaultProducerCache.java:317)                                                            
alpaca-1      |                                                 at org.apache.camel.processor.SendDynamicProcessor.process(SendDynamicProcessor.java:180)                                                                          alpaca-1      |                                                 at org.apache.camel.processor.errorhandler.RedeliveryErrorHandler$RedeliveryTask.doRun(RedeliveryErrorHandler.java:714)                            
alpaca-1      |                                                 at org.apache.camel.processor.errorhandler.RedeliveryErrorHandler$RedeliveryTask.run(RedeliveryErrorHandler.java:623)                                              
alpaca-1      |                                                 ... 10 common frames omitted                                                                                                                                       fcrepo-1      | 192.168.6.2 - anonymous [21/Aug/2024:17:03:59 +0000] "HEAD /fcrepo/rest/d7/24/4c/b5/d7244cb5-7112-4564-95a5-6397148d167a HTTP/1.1" 404 -                                                                           fcrepo-1      | 192.168.6.2 - anonymous [21/Aug/2024:17:03:59 +0000] "HEAD /fcrepo/rest/d7/24/4c/b5/d7244cb5-7112-4564-95a5-6397148d167a HTTP/1.1" 404 -

[1]

milliner-1    | [2024-08-21T17:04:03.566733+00:00] app.ERROR: Caught exception creating node resource. {"Exception":"[object] (GuzzleHttp\\Exception\\ConnectException(code: 0): cURL error 7: Failed to connect to [site] port 443 after 1 ms: Couldn't connect to server (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://[site]/node/655?_format=jsonld at /var/www/crayfish/Milliner/vendor/guzzlehttp/guzzle/src/Handler/CurlFactory.php:210)"} []                                                                                                                                                                                              milliner-1    | 192.168.6.10 - - [21/Aug/2024:17:04:03 +0000] "POST /node/d7244cb5-7112-4564-95a5-6397148d167a HTTP/1.1" 500 232 "-" "Apache-HttpClient/4.5.13 (Java/17.0.10)" "-"
@rbos rbos added the bug label Aug 21, 2024
@rbos
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rbos commented Aug 21, 2024

possibly related: Islandora/documentation#1070

@rbos
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rbos commented Sep 3, 2024

I was able to resolve the error by masking it.

in milliner container:

./src/Service/MillinerService.php

protected function getFirstPredicate(array $jsonld, string $predicate, bool $value = true): ?string

        if ($malformed) {
            return '1970-01-01T00:00:00Z'; 
        }

@DonRichards
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I gave this a shot, it helped with the error but I don't believe it fixed the issue for me.

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