TechQA.

Question

In hadoop, why does the parquet format occupy higher memory than the original txt when I test?

score 36 · Answer 1 · 2023-09-24T16:45:37.237000

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In hadoop, why does the parquet format occupy higher memory than the original txt when I test?

36 views Asked by fei yang At 24 September 2023 at 16:45

score 188 · Answer 2 · 2021-12-08T20:50:37.390000

Deserialize an in-memory Hadoop sequence file object

188 views Asked by Liam385 At 08 December 2021 at 20:50

score 173 · Answer 3 · 2021-09-07T11:30:15.637000

Migrating a huge Bigtable database in GCP from one account to another using DataFlow

173 views Asked by avnshrai At 07 September 2021 at 11:30

score 226 · Answer 4 · 2021-08-10T09:39:11.443000

Java Map Reduce use SequenceFIle as reducer output

226 views Asked by Boschi Francesco At 10 August 2021 at 09:39

score 768 · Answer 5 · 2021-02-14T11:59:52.613000

java.io.EOFException not a SequenceFile on empty file

768 views Asked by gjin At 14 February 2021 at 11:59

score 164 · Answer 6 · 2021-02-07T21:31:57.437000

Most efficient storage format for HDFS data

164 views Asked by smurfy At 07 February 2021 at 21:31

score 380 · Answer 7 · 2020-12-12T10:35:54.710000

Convert SequenceFile as DataFrame

380 views Asked by Pedro Alves At 12 December 2020 at 10:35

score 397 · Answer 8 · 2020-01-21T14:10:24.617000

sequence files from sqoop import

397 views Asked by Jaya At 21 January 2020 at 14:10

score 280 · Answer 9 · 2019-08-13T11:29:06.420000

Two ways to read hdfs sequece file, but one failed with EOFException

280 views Asked by zqiang0zh At 13 August 2019 at 11:29

score 487 · Answer 10 · 2019-06-30T11:16:27.870000

Return value of Linux kernel sequence 'show' routine

487 views Asked by Skegg At 30 June 2019 at 11:16

score 69 · Answer 11 · 2019-04-26T12:26:33.120000

Is it possible to only evaluate the Key when reading a SequenceFile in Spark?

69 views Asked by Rick Boyd At 26 April 2019 at 12:26

score 400 · Answer 12 · 2018-11-10T14:06:44.540000

Not serializable result: org.apache.hadoop.io.IntWritable when reading Sequence File with Spark / Scala

400 views Asked by thebluephantom At 10 November 2018 at 14:06

score 1892 · Answer 13 · 2018-11-10T07:31:30.240000

unable to create dataframe from sequence file in Spark created by Sqoop

1.8k views Asked by RushHour At 10 November 2018 at 07:31

score 129 · Answer 14 · 2018-10-26T11:03:09.523000

Append to hadoop sequence file

129 views Asked by Shig At 26 October 2018 at 11:03

score 1624 · Answer 15 · 2018-10-20T18:10:03.137000

Find compression codec used for an hadoop file

1.6k views Asked by revy At 20 October 2018 at 18:10

score 759 · Answer 16 · 2018-09-17T00:31:51.257000

kafka-connect-hdfs : SequenceFileWriter creates badfiles on connector restarts causing EOFException in the SequenceFileReader

759 views Asked by Rupesh More At 17 September 2018 at 00:31

score 397 · Answer 17 · 2018-09-12T10:37:08.773000

Apache-spark Error: Task failed while writing rows into sequenceFile

397 views Asked by DAVID_ROA At 12 September 2018 at 10:37

score 12413 · Answer 18 · 2018-08-30T11:59:26.837000

How to read/write protocol buffer messages with Apache Spark?

12.4k views Asked by DAVID_ROA At 30 August 2018 at 11:59

score 71 · Answer 19 · 2018-08-16T14:47:15.917000

No size difference between Hadoop SequenceFile and TextFile?

71 views Asked by Melih At 16 August 2018 at 14:47

score 287 · Answer 20 · 2018-06-18T17:57:50.160000

How to create an hbase sequencefile key in Spark for load to Bigtable?

287 views Asked by Adair At 18 June 2018 at 17:57

TechQA.

List Question

In hadoop, why does the parquet format occupy higher memory than the original txt when I test?

Deserialize an in-memory Hadoop sequence file object

Migrating a huge Bigtable database in GCP from one account to another using DataFlow

Java Map Reduce use SequenceFIle as reducer output

java.io.EOFException not a SequenceFile on empty file

Most efficient storage format for HDFS data

Convert SequenceFile as DataFrame

sequence files from sqoop import

Two ways to read hdfs sequece file, but one failed with EOFException

Return value of Linux kernel sequence 'show' routine

Is it possible to only evaluate the Key when reading a SequenceFile in Spark?

Not serializable result: org.apache.hadoop.io.IntWritable when reading Sequence File with Spark / Scala

unable to create dataframe from sequence file in Spark created by Sqoop

Append to hadoop sequence file

Find compression codec used for an hadoop file

kafka-connect-hdfs : SequenceFileWriter creates badfiles on connector restarts causing EOFException in the SequenceFileReader

Apache-spark Error: Task failed while writing rows into sequenceFile

How to read/write protocol buffer messages with Apache Spark?

No size difference between Hadoop SequenceFile and TextFile?

How to create an hbase sequencefile key in Spark for load to Bigtable?

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