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  1. IMPALA
  2. IMPALA-13009

Potential leak of partition deletions in the catalog topic

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Details

    • Bug
    • Status: Open
    • Critical
    • Resolution: Unresolved
    • Impala 4.0.0, Impala 4.1.0, Impala 4.2.0, Impala 4.1.1, Impala 4.1.2, Impala 4.3.0
    • None
    • Catalog
    • None
    • ghx-label-12

    Description

      Catalogd might not send partition deletions to the catalog topic in the following scenario:

      • Some partitions of a table are dropped.
      • The HdfsTable object is removed sequentially before catalogd collects the dropped partitions.

      In such case, catalogd loses track of the dropped partitions so their updates keep existing in the catalog topic, until the partition names are reused again.

      Note that the HdfsTable object can be removed by commands like DropTable or INVALIDATE.

      The leaked partitions will be detected when a coordinator restarts. An IllegalStateException complaining stale partitions will be reported, causing the table not being added to the catalog cache of coordinator.

      E0417 16:41:22.317298 20746 ImpaladCatalog.java:264] Error adding catalog object: Received stale partition in a statestore update: THdfsPartition(partitionKeyExprs:[TExpr(nodes:[TExprNode(node_type:INT_LITERAL, type:TColumnType(types:[TTypeNode(type:SCALAR, scalar_type:TScalarType(type:INT))]), num_children:0, is_constant:true, int_literal:TIntLiteral(value:106), is_codegen_disabled:false)])], location:THdfsPartitionLocation(prefix_index:0, suffix:p=106), id:138, file_desc:[THdfsFileDesc(file_desc_data:18 00 00 00 00 00 00 00 00 00 0E 00 1C 00 18 00 10 00 00 00 08 00 04 00 0E 00 00 00 18 00 00 00 8B 0E 2D EB 8E 01 00 00 04 00 00 00 00 00 00 00 0C 00 00 00 01 00 00 00 4C 00 00 00 36 00 00 00 34 34 34 37 62 35 66 34 62 30 65 64 66 64 65 31 2D 32 33 33 61 64 62 38 35 30 30 30 30 30 30 30 30 5F 36 36 34 31 30 39 33 37 33 5F 64 61 74 61 2E 30 2E 74 78 74 00 00 0C 00 14 00 00 00 0C 00...)], access_level:READ_WRITE, stats:TTableStats(num_rows:-1), is_marked_cached:false, hms_parameters:{transient_lastDdlTime=1713342582, totalSize=4, numFilesErasureCoded=0, numFiles=1}, num_blocks:1, total_file_size_bytes:4, has_incremental_stats:false, write_id:0, db_name:default, tbl_name:my_part, partition_name:p=106, hdfs_storage_descriptor:THdfsStorageDescriptor(lineDelim:10, fieldDelim:1, collectionDelim:1, mapKeyDelim:1, escapeChar:0, quoteChar:1, fileFormat:TEXT, blockSize:0))
      Java exception follows:
      java.lang.IllegalStateException: Received stale partition in a statestore update: THdfsPartition(partitionKeyExprs:[TExpr(nodes:[TExprNode(node_type:INT_LITERAL, type:TColumnType(types:[TTypeNode(type:SCALAR, scalar_type:TScalarType(type:INT))]), num_children:0, is_constant:true, int_literal:TIntLiteral(value:106), is_codegen_disabled:false)])], location:THdfsPartitionLocation(prefix_index:0, suffix:p=106), id:138, file_desc:[THdfsFileDesc(file_desc_data:18 00 00 00 00 00 00 00 00 00 0E 00 1C 00 18 00 10 00 00 00 08 00 04 00 0E 00 00 00 18 00 00 00 8B 0E 2D EB 8E 01 00 00 04 00 00 00 00 00 00 00 0C 00 00 00 01 00 00 00 4C 00 00 00 36 00 00 00 34 34 34 37 62 35 66 34 62 30 65 64 66 64 65 31 2D 32 33 33 61 64 62 38 35 30 30 30 30 30 30 30 30 5F 36 36 34 31 30 39 33 37 33 5F 64 61 74 61 2E 30 2E 74 78 74 00 00 0C 00 14 00 00 00 0C 00...)], access_level:READ_WRITE, stats:TTableStats(num_rows:-1), is_marked_cached:false, hms_parameters:{transient_lastDdlTime=1713342582, totalSize=4, numFilesErasureCoded=0, numFiles=1}, num_blocks:1, total_file_size_bytes:4, has_incremental_stats:false, write_id:0, db_name:default, tbl_name:my_part, partition_name:p=106, hdfs_storage_descriptor:THdfsStorageDescriptor(lineDelim:10, fieldDelim:1, collectionDelim:1, mapKeyDelim:1, escapeChar:0, quoteChar:1, fileFormat:TEXT, blockSize:0))
              at com.google.common.base.Preconditions.checkState(Preconditions.java:512)
              at org.apache.impala.catalog.ImpaladCatalog.addTable(ImpaladCatalog.java:523)
              at org.apache.impala.catalog.ImpaladCatalog.addCatalogObject(ImpaladCatalog.java:334)
              at org.apache.impala.catalog.ImpaladCatalog.updateCatalog(ImpaladCatalog.java:262)
              at org.apache.impala.service.FeCatalogManager$CatalogdImpl.updateCatalogCache(FeCatalogManager.java:120)
              at org.apache.impala.service.Frontend.updateCatalogCache(Frontend.java:565)
              at org.apache.impala.service.JniFrontend.updateCatalogCache(JniFrontend.java:196) 

      Workaround
      Add back the stale partitions to the table (if the table is also dropped, add back the table first) using the same partition names. Then drop them again. This gives catalogd chances to send deletions for them.

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              stigahuang Quanlong Huang
              stigahuang Quanlong Huang
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              Dates

                Created:
                Updated: