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Posted to issues@flink.apache.org by "Fabian Hueske (JIRA)" <ji...@apache.org> on 2017/08/29 20:18:00 UTC
[jira] [Closed] (FLINK-7398) Table API operators/UDFs must not
store Logger
[ https://issues.apache.org/jira/browse/FLINK-7398?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Fabian Hueske closed FLINK-7398.
--------------------------------
Resolution: Fixed
Fixed for 1.3.3 with 3167f72d95719ee551e798196fd26b9503e2dfd9
Fixed for 1.4.0 with df7452d9811b0aa88919d7e3c1f6c34b36ac9b38
> Table API operators/UDFs must not store Logger
> ----------------------------------------------
>
> Key: FLINK-7398
> URL: https://issues.apache.org/jira/browse/FLINK-7398
> Project: Flink
> Issue Type: Bug
> Components: Table API & SQL
> Affects Versions: 1.4.0, 1.3.2
> Reporter: Aljoscha Krettek
> Assignee: Haohui Mai
> Priority: Blocker
> Fix For: 1.4.0, 1.3.3
>
> Attachments: Example.png
>
>
> Table API operators and UDFs store a reference to the (slf4j) {{Logger}} in an instance field (c.f. https://github.com/apache/flink/blob/f37988c19adc30d324cde83c54f2fa5d36efb9e7/flink-libraries/flink-table/src/main/scala/org/apache/flink/table/runtime/FlatMapRunner.scala#L39). This means that the {{Logger}} will be serialised with the UDF and sent to the cluster. This in itself does not sound right and leads to problems when the slf4j configuration on the Client is different from the cluster environment.
> This is an example of a user running into that problem: https://lists.apache.org/thread.html/01dd44007c0122d60c3fd2b2bb04fd2d6d2114bcff1e34d1d2079522@%3Cuser.flink.apache.org%3E. Here, they have Logback on the client but the Logback classes are not available on the cluster and so deserialisation of the UDFs fails with a {{ClassNotFoundException}}.
> This is a rough list of the involved classes:
> {code}
> src/main/scala/org/apache/flink/table/catalog/ExternalCatalogSchema.scala:43: private val LOG: Logger = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/catalog/ExternalTableSourceUtil.scala:45: private val LOG: Logger = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/codegen/calls/BuiltInMethods.scala:28: val LOG10 = Types.lookupMethod(classOf[Math], "log10", classOf[Double])
> src/main/scala/org/apache/flink/table/plan/nodes/datastream/DataStreamGroupAggregate.scala:62: private val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/plan/nodes/datastream/DataStreamGroupWindowAggregate.scala:59: private val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/plan/nodes/datastream/DataStreamOverAggregate.scala:51: private val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/plan/nodes/FlinkConventions.scala:28: val LOGICAL: Convention = new Convention.Impl("LOGICAL", classOf[FlinkLogicalRel])
> src/main/scala/org/apache/flink/table/plan/rules/FlinkRuleSets.scala:38: val LOGICAL_OPT_RULES: RuleSet = RuleSets.ofList(
> src/main/scala/org/apache/flink/table/runtime/aggregate/AggregateAggFunction.scala:36: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/aggregate/DataSetAggFunction.scala:43: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/aggregate/DataSetFinalAggFunction.scala:44: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/aggregate/DataSetPreAggFunction.scala:44: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/aggregate/DataSetSessionWindowAggregatePreProcessor.scala:55: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/aggregate/DataSetSessionWindowAggReduceGroupFunction.scala:66: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/aggregate/DataSetSlideWindowAggReduceGroupFunction.scala:56: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/aggregate/DataSetSlideTimeWindowAggReduceGroupFunction.scala:64: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/aggregate/DataSetTumbleCountWindowAggReduceGroupFunction.scala:46: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/aggregate/DataSetWindowAggMapFunction.scala:52: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/aggregate/DataSetTumbleTimeWindowAggReduceGroupFunction.scala:55: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/aggregate/GroupAggProcessFunction.scala:48: val LOG: Logger = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/aggregate/ProcTimeBoundedRowsOver.scala:66: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/aggregate/ProcTimeBoundedRangeOver.scala:61: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/aggregate/ProcTimeUnboundedOver.scala:47: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/aggregate/RowTimeBoundedRangeOver.scala:67: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/aggregate/RowTimeBoundedRowsOver.scala:72: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/aggregate/RowTimeUnboundedOver.scala:60: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/CorrelateFlatMapRunner.scala:40: val LOG: Logger = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/CRowCorrelateProcessRunner.scala:45: val LOG: Logger = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/CRowInputMapRunner.scala:41: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/CRowInputTupleOutputMapRunner.scala:44: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/CRowInputTupleOutputMapRunner.scala:77: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/CRowOutputMapRunner.scala:41: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/CRowProcessRunner.scala:43: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/FlatJoinRunner.scala:37: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/FlatMapRunner.scala:39: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/io/CRowValuesInputFormat.scala:39: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/io/ValuesInputFormat.scala:38: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/MapRunner.scala:36: val LOG = LoggerFactory.getLogger(this.getClass)
> src/main/scala/org/apache/flink/table/runtime/MapSideJoinRunner.scala:37: val LOG = LoggerFactory.getLogger(this.getClass)
> {code}
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