tRest (get) component not showing stable response

biswamoy — Thu, 08 May 2025 17:40:29 GMT

Hi Team,

The mapping is designed to fetch the total count of rows of the API, storing it in a variable and diving with the number of pagesize it gets the total iterations to run. I have used a combination of tloop(for 1 to total page and increment) and the page value is dynamically sent to the tRest component to fire a rest call.

Issue: The job sometimes succeeds completing all the iterations , while most other times it fails after completing certain number of iterations: Error portion of log below:

"[INFO ]: hr_datalake_dev.Jobname_masked_0_1.Jobname_masked - tLoop_1 - Start to loop from 1 to 124598 with a step of 2000 (Increasing).
[INFO ]: hr_datalake_dev.Jobname_masked_0_1.Jobname_masked - tREST_1 - Prepare to send request to rest server.
[INFO ]: hr_datalake_dev.Jobname_masked_0_1.Jobname_masked - tREST_1 - Has sent request to rest server.
[INFO ]: hr_datalake_dev.Jobname_masked_0_1.Jobname_masked - tREST_1 - Prepare to send request to rest server.
[INFO ]: hr_datalake_dev.Jobname_masked_0_1.Jobname_masked - tREST_1 - Has sent request to rest server.
[INFO ]: hr_datalake_dev.Jobname_masked_0_1.Jobname_masked - tREST_1 - Prepare to send request to rest server.
[INFO ]: hr_datalake_dev.Jobname_masked_0_1.Jobname_masked - tREST_1 - Has sent request to rest server.
[INFO ]: hr_datalake_dev.Jobname_masked_0_1.Jobname_masked - tREST_1 - Prepare to send request to rest server.
[INFO ]: hr_datalake_dev.Jobname_masked_0_1.Jobname_masked - tREST_1 - Has sent request to rest server.
[INFO ]: hr_datalake_dev.Jobname_masked_0_1.Jobname_masked - tREST_1 - Prepare to send request to rest server.
[INFO ]: hr_datalake_dev.Jobname_masked_0_1.Jobname_masked - tREST_1 - Has sent request to rest server.
[INFO ]: hr_datalake_dev.Jobname_masked_0_1.Jobname_masked - tREST_1 - Prepare to send request to rest server.
[INFO ]: hr_datalake_dev.Jobname_masked_0_1.Jobname_masked - tREST_1 - Has sent request to rest server.
[INFO ]: hr_datalake_dev.Jobname_masked_0_1.Jobname_masked - tREST_1 - Prepare to send request to rest server.
[FATAL]: hr_datalake_dev.Jobname_masked_0_1.Jobname_masked - tREST_1 java.io.IOException: Premature EOF
#######################################
Job Failed - Check the Logs
#######################################
Exception in component tREST_1
com.sun.jersey.api.client.ClientHandlerException: java.io.IOException: Premature EOF
at com.sun.jersey.api.client.ClientResponse.getEntity(ClientResponse.java:562)
at com.sun.jersey.api.client.ClientResponse.getEntity(ClientResponse.java:505)
at com.sun.jersey.api.client.WebResource.handle(WebResource.java:563)
at com.sun.jersey.api.client.WebResource.access$200(WebResource.java:72)
at com.sun.jersey.api.client.WebResource$Builder.get(WebResource.java:454)
at hr_datalake_dev.Jobname_masked_0_1.Jobname_masked.tLoop_1Process(Jobname_masked.java:14635)
at hr_datalake_dev.Jobname_masked_0_1.Jobname_masked.tRESTClient_1Process(Jobname_masked.java:8574)
at hr_datalake_dev.Jobname_masked_0_1.Jobname_masked.tFileDelete_1Process(Jobname_masked.java:6194)
at hr_datalake_dev.Jobname_masked_0_1.Jobname_masked.tFTPDelete_1Process(Jobname_masked.java:5950)
at hr_datalake_dev.Jobname_masked_0_1.Jobname_masked.tPostgresqlClose_2Process(Jobname_masked.java:5603)
at hr_datalake_dev.Jobname_masked_0_1.Jobname_masked.tPostgresqlRow_2Process(Jobname_masked.java:5412)
at hr_datalake_dev.Jobname_masked_0_1.Jobname_masked.tJava_2Process(Jobname_masked.java:4680)
at hr_datalake_dev.Jobname_masked_0_1.Jobname_masked.tPostgresqlInput_2Process(Jobname_masked.java:4444)
at hr_datalake_dev.Jobname_masked_0_1.Jobname_masked.tPostgresqlConnection_2Process(Jobname_masked.java:3950)
at hr_datalake_dev.Jobname_masked_0_1.Jobname_masked.tSetGlobalVar_4Process(Jobname_masked.java:3717)
at hr_datalake_dev.Jobname_masked_0_1.Jobname_masked.runJobInTOS(Jobname_masked.java:21130)
at hr_datalake_dev.Jobname_masked_0_1.Jobname_masked.main(Jobname_masked.java:20826)
Caused by: java.io.IOException: Premature EOF
at sun.net.www.http.ChunkedInputStream.readAheadBlocking(ChunkedInputStream.java:565)
at sun.net.www.http.ChunkedInputStream.readAhead(ChunkedInputStream.java:609)
at sun.net.www.http.ChunkedInputStream.read(ChunkedInputStream.java:696)
at java.io.FilterInputStream.read(FilterInputStream.java:133)
at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(HttpURLConnection.java:3393)
at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:284)
at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:326)
at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)
at java.io.InputStreamReader.read(InputStreamReader.java:184)
at java.io.Reader.read(Reader.java:140)
at com.sun.jersey.core.util.ReaderWriter.readFromAsString(ReaderWriter.java:171)
at com.sun.jersey.core.util.ReaderWriter.readFromAsString(ReaderWriter.java:157)
at com.sun.jersey.core.provider.AbstractMessageReaderWriterProvider.readFromAsString(AbstractMessageReaderWriterProvider.java:114)
at com.sun.jersey.core.impl.provider.entity.StringProvider.readFrom(StringProvider.java:73)
at com.sun.jersey.core.impl.provider.entity.StringProvider.readFrom(StringProvider.java:58)
at com.sun.jersey.api.client.ClientResponse.getEntity(ClientResponse.java:552)"

Kindly help me in getting the root cause, as I tried same with tHttpRequest component as well

Re: tRest (get) component not showing stable response

houssem_B — Tue, 13 Oct 2020 10:41:45 GMT

try to set a tSleep (with 10 secs wait) after tfileoutput

topic tRest (get) component not showing stable response in Archived Discussions

tRest (get) component not showing stable response

Re: tRest (get) component not showing stable response