[GitHub] kameshsampath opened a new issue #498: Knative pods not scaling down to zero

[GitBox <gi...@apache.org>]

kameshsampath opened a new issue #498: Knative pods not scaling down to zero
URL: https://github.com/apache/camel-k/issues/498
 
 
   I am deploying the route like:
   
   // content based router Route 1
   
   ```
   from("aws-s3://data?deleteAfterRead=false")
   				.streamCaching()
   				.filter(header("CamelAwsS3Key").endsWith(".xml"))
   				.idempotentConsumer(header("CamelAwsS3ETag"), idmRepo())
   				.log(LoggingLevel.DEBUG,"Processing File : ${header.CamelAwsS3Key}")
   				.choice()
   				.when(xpath("/person/country = 'US'"))
   				    .log("Sending Body ${body}")
   					  .to("knative:channel/messages-us")
   				.otherwise()
   				    .log("Sending Body ${body}")
   						.to("knative:channel/messages-others")
   				.end();
   ```
   
   // us messages handler 
   
   ```
    from("knative:channel/messages-us")
   			   .log(LoggingLevel.DEBUG,
   					   "Received content ${body}")
   				 .setProperty("userName", xpath("/person/@user", String.class))
   				 .convertBodyTo(byte[].class)
   				 .log(LoggingLevel.DEBUG,"Writing file {{messagesDir}}/${property.userName}.xml")
   				 .to("file://{{messagesDir}}/us?fileName=${property.userName}.xml")
   				 .end();
   
   	    from("file:{{messagesDir}}?noop=true&recursive=true")
   					.log(LoggingLevel.DEBUG,"Processing file ${in.header.CamelFileName}")
   				 .setHeader(S3Constants.CONTENT_LENGTH, simple("${in.header.CamelFileLength}"))
                   .setHeader(S3Constants.KEY, simple("${in.header.CamelFileNameOnly}"))
                   .convertBodyTo(byte[].class)
                   .process(exchange -> {
                       //Build a valid destination bucket name
                       String camelFileRelativePath = exchange.getIn().getHeader("CamelFileRelativePath", String.class);
                       String onlyPath = "us-out";
                       if (camelFileRelativePath != null) {
                           log.debug("Camel File Relative Path " + camelFileRelativePath);
                           onlyPath = FileUtil.onlyPath(camelFileRelativePath);
                           log.debug("Camel File  onlyPath " + onlyPath);
                       }
                       exchange.setProperty("toBucketName", "messages-"+ onlyPath.toLowerCase());
                   })
   								.log("Uploading file ${header.CamelFileName} to bucket: ${property.toBucketName}")
                   .toD("aws-s3://${property.toBucketName}?deleteAfterWrite=false")
           .end();
   ```
   
   //other messages handler 
   
   ```
   // @formatter:off
   	   from("knative:channel/messages-others")
   			   .log(LoggingLevel.DEBUG,"Received content ${body}")
   				 .setProperty("userName", xpath("/person/@user", String.class))
   				 .convertBodyTo(byte[].class)
   				 .log(LoggingLevel.DEBUG,"Writing file {{messagesDir}}/${property.userName}.xml")
   				 .to("file://{{messagesDir}}/others?fileName=${property.userName}.xml")
   				 .end();
   
   	    from("file:{{messagesDir}}?noop=true&recursive=true")
   					.log(LoggingLevel.DEBUG,"Processing file ${in.header.CamelFileName}")
   				 .setHeader(S3Constants.CONTENT_LENGTH, simple("${in.header.CamelFileLength}"))
                   .setHeader(S3Constants.KEY, simple("${in.header.CamelFileNameOnly}"))
                   .convertBodyTo(byte[].class)
                   .process(exchange -> {
                       //Build a valid destination bucket name
                       String camelFileRelativePath = exchange.getIn().getHeader("CamelFileRelativePath", String.class);
                       String onlyPath = "others-out";
                       if (camelFileRelativePath != null) {
                           log.debug("Camel File Relative Path " + camelFileRelativePath);
                           onlyPath = FileUtil.onlyPath(camelFileRelativePath);
                           log.debug("Camel File  onlyPath " + onlyPath);
                       }
                       exchange.setProperty("toBucketName", "messages-"+ onlyPath.toLowerCase());
                   })
   								.log("Uploading file ${header.CamelFileName} to bucket: ${property.toBucketName}")
                   .toD("aws-s3://${property.toBucketName}?deleteAfterWrite=false")
           .end();
   		  // @formatter:on
   ```
   
   The Knative Camel-k setup works fine and was able to do what the route needed to. but once there are no more messages that is available I dont see the `usmessages` and `others-messages` handler knative pods scaling down to `0`

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