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https://issues.apache.org/jira/browse/DRILL-7164?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16818590#comment-16818590
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ASF GitHub Bot commented on DRILL-7164:
---------------------------------------
aravi5 commented on pull request #1751: DRILL-7164: KafkaFilterPushdownTest is
sometimes failing to pattern match correctly
URL: https://github.com/apache/drill/pull/1751
- The structure of "cost" in JSON plan changed as a part of #1677 and cost
validation was accidentally.
- While correcting the cost validation, the substring validation is changed
to regex validation to make it more robust.
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> KafkaFilterPushdownTest is sometimes failing to pattern match correctly.
> ------------------------------------------------------------------------
>
> Key: DRILL-7164
> URL: https://issues.apache.org/jira/browse/DRILL-7164
> Project: Apache Drill
> Issue Type: Bug
> Components: Storage - Kafka
> Affects Versions: 1.16.0
> Reporter: Hanumath Rao Maduri
> Assignee: Abhishek Ravi
> Priority: Major
> Fix For: 1.17.0
>
>
> On my private build I am hitting kafka storage tests issue intermittently.
> Here is the issue which I came across.
> {code}
> at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_91]
> 15:01:39.852 [main] ERROR org.apache.drill.TestReporter - Test Failed (d:
> -292 B(75.4 KiB), h: -391.1 MiB(240.7 MiB), nh: 824.5 KiB(129.0 MiB)):
> testPushdownOffsetOneRecordReturnedWithBoundaryConditions(org.apache.drill.exec.store.kafka.KafkaFilterPushdownTest)
> java.lang.AssertionError: Unable to find expected string "kafkaScanSpec"
> : {
> "topicName" : "drill-pushdown-topic"
> },
> "cost" in plan: {
> "head" : {
> "version" : 1,
> "generator" : {
> "type" : "ExplainHandler",
> "info" : ""
> },
> "type" : "APACHE_DRILL_PHYSICAL",
> "options" : [ {
> "kind" : "STRING",
> "accessibleScopes" : "ALL",
> "name" : "store.kafka.record.reader",
> "string_val" :
> "org.apache.drill.exec.store.kafka.decoders.JsonMessageReader",
> "scope" : "SESSION"
> }, {
> "kind" : "BOOLEAN",
> "accessibleScopes" : "ALL",
> "name" : "exec.errors.verbose",
> "bool_val" : true,
> "scope" : "SESSION"
> }, {
> "kind" : "LONG",
> "accessibleScopes" : "ALL",
> "name" : "store.kafka.poll.timeout",
> "num_val" : 5000,
> "scope" : "SESSION"
> }, {
> "kind" : "LONG",
> "accessibleScopes" : "ALL",
> "name" : "planner.width.max_per_node",
> "num_val" : 2,
> "scope" : "SESSION"
> } ],
> "queue" : 0,
> "hasResourcePlan" : false,
> "resultMode" : "EXEC"
> },
> "graph" : [ {
> "pop" : "kafka-scan",
> "@id" : 6,
> "userName" : "",
> "kafkaStoragePluginConfig" : {
> "type" : "kafka",
> "kafkaConsumerProps" : {
> "bootstrap.servers" : "127.0.0.1:56524",
> "group.id" : "drill-test-consumer"
> },
> "enabled" : true
> },
> "columns" : [ "`**`", "`kafkaMsgOffset`" ],
> "kafkaScanSpec" : {
> "topicName" : "drill-pushdown-topic"
> },
> "initialAllocation" : 1000000,
> "maxAllocation" : 10000000000,
> "cost" : {
> "memoryCost" : 1.6777216E7,
> "outputRowCount" : 5.0
> }
> }, {
> "pop" : "project",
> "@id" : 5,
> "exprs" : [ {
> "ref" : "`T23¦¦**`",
> "expr" : "`**`"
> }, {
> "ref" : "`kafkaMsgOffset`",
> "expr" : "`kafkaMsgOffset`"
> } ],
> "child" : 6,
> "outputProj" : false,
> "initialAllocation" : 1000000,
> "maxAllocation" : 10000000000,
> "cost" : {
> "memoryCost" : 1.6777216E7,
> "outputRowCount" : 5.0
> }
> }, {
> "pop" : "filter",
> "@id" : 4,
> "child" : 5,
> "expr" : "equal(`kafkaMsgOffset`, 9) ",
> "initialAllocation" : 1000000,
> "maxAllocation" : 10000000000,
> "cost" : {
> "memoryCost" : 1.6777216E7,
> "outputRowCount" : 0.75
> }
> }, {
> "pop" : "selection-vector-remover",
> "@id" : 3,
> "child" : 4,
> "initialAllocation" : 1000000,
> "maxAllocation" : 10000000000,
> "cost" : {
> "memoryCost" : 1.6777216E7,
> "outputRowCount" : 1.0
> }
> }, {
> "pop" : "project",
> "@id" : 2,
> "exprs" : [ {
> "ref" : "`T23¦¦**`",
> "expr" : "`T23¦¦**`"
> } ],
> "child" : 3,
> "outputProj" : false,
> "initialAllocation" : 1000000,
> "maxAllocation" : 10000000000,
> "cost" : {
> "memoryCost" : 1.6777216E7,
> "outputRowCount" : 1.0
> }
> }, {
> "pop" : "project",
> "@id" : 1,
> "exprs" : [ {
> "ref" : "`**`",
> "expr" : "`T23¦¦**`"
> } ],
> "child" : 2,
> "outputProj" : true,
> "initialAllocation" : 1000000,
> "maxAllocation" : 10000000000,
> "cost" : {
> "memoryCost" : 1.6777216E7,
> "outputRowCount" : 1.0
> }
> }, {
> "pop" : "screen",
> "@id" : 0,
> "child" : 1,
> "initialAllocation" : 1000000,
> "maxAllocation" : 10000000000,
> "cost" : {
> "memoryCost" : 1.6777216E7,
> "outputRowCount" : 1.0
> }
> } ]
> }!
> {code}
> In the earlier checkin (d22e68b83d1d0cc0539d79ae0cb3aa70ae3242ad ) there is a
> change in the way cost is being represented. It also has the changed the test
> which I think is not right. The pattern to compare in the plan should be made
> smart to fix this issue generically.
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