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https://issues.apache.org/jira/browse/FLINK-15563?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17323124#comment-17323124
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Flink Jira Bot commented on FLINK-15563:
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This issue is assigned but has not received an update in 7 days so it has been
labeled "stale-assigned". If you are still working on the issue, please give an
update and remove the label. If you are no longer working on the issue, please
unassign so someone else may work on it. In 7 days the issue will be
automatically unassigned.
> When using ParquetTableSource, The program hangs until OOM
> -----------------------------------------------------------
>
> Key: FLINK-15563
> URL: https://issues.apache.org/jira/browse/FLINK-15563
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Legacy Planner
> Affects Versions: 1.8.1, 1.9.1
> Reporter: sujun
> Assignee: godfrey he
> Priority: Critical
> Labels: Parquet, pull-request-available, stale-assigned
> Time Spent: 10m
> Remaining Estimate: 0h
>
> This is my code:
> {code:java}
> def main(args: Array[String]): Unit = {
> val env = StreamExecutionEnvironment.getExecutionEnvironment
> env.setStreamTimeCharacteristic(TimeCharacteristic.EventTime)
> val tableEnv = StreamTableEnvironment.create(env) val schema =
> "{\"type\":\"record\",\"name\":\"root\",\"fields\":[{\"name\":\"log_id\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"city\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"log_from\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"ip\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"type\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"data_source\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"is_scan\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"result\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"timelong\",\"type\":[\"null\",\"long\"],\"default\":null},{\"name\":\"is_sec\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"event_name\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"id\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"time_string\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"device\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"timestamp_string\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"occur_time\",\"type\":[\"null\",{\"type\":\"long\",\"logicalType\":\"timestamp-millis\"}],\"default\":null},{\"name\":\"row_time\",\"type\":[\"null\",{\"type\":\"long\",\"logicalType\":\"timestamp-millis\"}],\"default\":null}]}"
>
> val parquetTableSource: ParquetTableSource = ParquetTableSource
> .builder
> .forParquetSchema(new
> org.apache.parquet.avro.AvroSchemaConverter().convert(
> org.apache.avro.Schema.parse(schema, true)))
> .path("/Users/sujun/Documents/tmp/login_data")
> .build
> tableEnv.registerTableSource("source",parquetTableSource)
> val t1 = tableEnv.sqlQuery("select log_id,city from source where city =
> '274' ")
> tableEnv.registerTable("t1",t1)
> val t2 = tableEnv.sqlQuery("select * from t1 where
> log_id='5927070661978133'")
> t2.toAppendStream[Row].print()
> env.execute()}
> {code}
>
> When the two SQLS each have a where condition, the main program will hang
> until OOM. When the filter push down code of ParquetTableSource is deleted,
> the program runs normally.
>
> Through my debugging, I found that the program hangs in the
> org.apache.calcite.plan.volcano.VolcanoPlanner.findBestExp method
>
> May be a bug in the calcite optimizer caused by filter push down code
>
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