Impala Reported Corrupt Parquet File After Failed With OutOfMemory Error

source link Recently I was dealing with an issue that impala reported Corrupt Parquet File after it failed with OutOfMemory error, however, if it does not fail, no corruption will be reported.

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british airways in 1970s 1980s See below error message reportd in Impala Daemon logs:

holdredge master thesis limestone Memory limit exceeded HdfsParquetScanner::ReadDataPage() failed to allocate 65535 bytes for decompressed data. Corrupt Parquet file 'hdfs://nameservice1/path/to/file/914164e7120e6076-cdae1be60000001f_169433548_data.0.parq': column 'client_ord_id' had 1024 remaining values but expected 0 _ [Executed: 4/29/2017 5:28:58 AM] [Execution: 588ms] When an impala query failed with OOM error, it also reported corrupted parquet file: HdfsParquetScanner::ReadDataPage() failed to allocate 65535 bytes for decompressed data. Corrupt Parquet file 'hdfs://nameservice1/path/to/file/914164e7120e6076-cdae1be60000001f_169433548_data.0.parq': column 'client_ord_id' had 1024 remaining values but expected 0 _ [Executed: 4/29/2017 5:28:58 AM] [Execution: 588ms]

http://seattlebusinesscapital.com/personal-narrative-essay-college-admissions/ This is reported in the upstream JIRA: IMPALA-5197, this can happen in the following scenarios:

  • Query failed with OOM error
  • There is a LIMIT clause in the query
  • Query is manually cancelled by the user

http://www.sgc.utoronto.ca/index4.php?cheap-essay-writing=need-help-with-writing-a-research-paper need help with writing a research paper Those corrupt messages do not mean the file is really corrupted, it is caused by an Impala bug that mentioned earlier IMPALA-5197.

see If it is caused by OutOfMemory error, simply increase the memory limit for the query and try again:

Speech Writing Services Online SET MEM_LIMIT=10g;

http://www.millionaireagentmakersummit.com/research-term-paper-help/ Dividing Decimals Homework Help For the other two causes, we will need to wait for IMPALA-5197 to be fixed

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