[
https://issues.apache.org/jira/browse/IMPALA-13102?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17847742#comment-17847742
]
Quanlong Huang commented on IMPALA-13102:
-----------------------------------------
In the Impala dev env, I can set the stats directly in postgresql:
{code:sql}
psql -q -U hiveuser -d ${METASTORE_DB}
HMS_home_quanlong_workspace_Impala_cdp=> select "TBL_ID" from "TBLS" where
"TBL_NAME" = 'alltypes_bak';
TBL_ID
--------
244931
(1 row)
HMS_home_quanlong_workspace_Impala_cdp=> select "CS_ID", "DB_NAME",
"TABLE_NAME", "COLUMN_NAME", "NUM_DISTINCTS" from "TAB_COL_STATS" where
"TBL_ID" = 244931;
CS_ID | DB_NAME | TABLE_NAME | COLUMN_NAME | NUM_DISTINCTS
-------+---------+--------------+-----------------+---------------
68767 | default | alltypes_bak | double_col | 10
68766 | default | alltypes_bak | id | 7300
68765 | default | alltypes_bak | tinyint_col | 10
68764 | default | alltypes_bak | timestamp_col | 7300
68763 | default | alltypes_bak | smallint_col | 10
68762 | default | alltypes_bak | date_string_col | 736
68761 | default | alltypes_bak | string_col | 10
68760 | default | alltypes_bak | float_col | 10
68759 | default | alltypes_bak | bigint_col | 10
68758 | default | alltypes_bak | year | 2
68757 | default | alltypes_bak | bool_col |
68756 | default | alltypes_bak | int_col | 10
(12 rows)
HMS_home_quanlong_workspace_Impala_cdp=> UPDATE "TAB_COL_STATS" SET
"NUM_DISTINCTS" = -100 where "CS_ID" = 68766;
HMS_home_quanlong_workspace_Impala_cdp=> select "CS_ID", "DB_NAME",
"TABLE_NAME", "COLUMN_NAME", "NUM_DISTINCTS" from "TAB_COL_STATS" where "CS_ID"
= 68766;
CS_ID | DB_NAME | TABLE_NAME | COLUMN_NAME | NUM_DISTINCTS
-------+---------+--------------+-------------+---------------
68766 | default | alltypes_bak | id | -100
(1 row)
{code}
> Loading tables with illegal stats failed
> ----------------------------------------
>
> Key: IMPALA-13102
> URL: https://issues.apache.org/jira/browse/IMPALA-13102
> Project: IMPALA
> Issue Type: Bug
> Components: Catalog
> Reporter: Quanlong Huang
> Assignee: Quanlong Huang
> Priority: Critical
>
> When the table has illegal stats, e.g. numDVs=-100, Impala can't load the
> table. So DROP STATS or DROP TABLE can't be perform on the table.
> {code:sql}
> [localhost:21050] default> drop stats alltypes_bak;
> Query: drop stats alltypes_bak
> ERROR: AnalysisException: Failed to load metadata for table: 'alltypes_bak'
> CAUSED BY: TableLoadingException: Failed to load metadata for table:
> default.alltypes_bak
> CAUSED BY: IllegalStateException: ColumnStats{avgSize_=4.0,
> avgSerializedSize_=4.0, maxSize_=4, numDistinct_=-100, numNulls_=0,
> numTrues=-1, numFalses=-1, lowValue=-1, highValue=-1}{code}
> We should allow at least dropping the stats or dropping the table. So user
> can use Impala to recover the stats.
> Stacktrace in the logs:
> {noformat}
> I0520 08:00:56.661746 17543 jni-util.cc:321]
> 5343142d1173494f:44dcde8c00000000]
> org.apache.impala.common.AnalysisException: Failed to load metadata for
> table: 'alltypes_bak'
> at
> org.apache.impala.analysis.Analyzer.resolveTableRef(Analyzer.java:974)
> at
> org.apache.impala.analysis.DropStatsStmt.analyze(DropStatsStmt.java:94)
> at
> org.apache.impala.analysis.AnalysisContext.analyze(AnalysisContext.java:551)
> at
> org.apache.impala.analysis.AnalysisContext.analyzeAndAuthorize(AnalysisContext.java:498)
> at
> org.apache.impala.service.Frontend.doCreateExecRequest(Frontend.java:2542)
> at
> org.apache.impala.service.Frontend.getTExecRequest(Frontend.java:2224)
> at
> org.apache.impala.service.Frontend.createExecRequest(Frontend.java:1985)
> at
> org.apache.impala.service.JniFrontend.createExecRequest(JniFrontend.java:175)
> Caused by: org.apache.impala.catalog.TableLoadingException: Failed to load
> metadata for table: default.alltypes_bak
> CAUSED BY: IllegalStateException: ColumnStats{avgSize_=4.0,
> avgSerializedSize_=4.0, maxSize_=4, numDistinct_=-100, numNulls_=0,
> numTrues=-1, numFalses=-1, lowValue=-1, highValue=-1}
> at
> org.apache.impala.catalog.IncompleteTable.loadFromThrift(IncompleteTable.java:162)
> at org.apache.impala.catalog.Table.fromThrift(Table.java:586)
> at
> org.apache.impala.catalog.ImpaladCatalog.addTable(ImpaladCatalog.java:479)
> 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:114)
> at
> org.apache.impala.service.Frontend.updateCatalogCache(Frontend.java:585)
> at
> org.apache.impala.service.JniFrontend.updateCatalogCache(JniFrontend.java:196)
> at ========.<Remote stack trace on catalogd>:
> org.apache.impala.catalog.TableLoadingException: Failed to load metadata for
> table: default.alltypes_bak
> at org.apache.impala.catalog.HdfsTable.load(HdfsTable.java:1318)
> at org.apache.impala.catalog.HdfsTable.load(HdfsTable.java:1213)
> at org.apache.impala.catalog.TableLoader.load(TableLoader.java:145)
> at
> org.apache.impala.catalog.TableLoadingMgr$2.call(TableLoadingMgr.java:251)
> at
> org.apache.impala.catalog.TableLoadingMgr$2.call(TableLoadingMgr.java:247)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:750)
> Caused by: java.lang.IllegalStateException: ColumnStats{avgSize_=4.0,
> avgSerializedSize_=4.0, maxSize_=4, numDistinct_=-100, numNulls_=0,
> numTrues=-1, numFalses=-1, lowValue=-1, highValue=-1}
> at
> com.google.common.base.Preconditions.checkState(Preconditions.java:512)
> at
> org.apache.impala.catalog.ColumnStats.validate(ColumnStats.java:1034)
> at org.apache.impala.catalog.ColumnStats.update(ColumnStats.java:676)
> at org.apache.impala.catalog.Column.updateStats(Column.java:73)
> at
> org.apache.impala.catalog.FeCatalogUtils.injectColumnStats(FeCatalogUtils.java:183)
> at org.apache.impala.catalog.Table.loadAllColumnStats(Table.java:513)
> at org.apache.impala.catalog.HdfsTable.load(HdfsTable.java:1269)
> ... 8 more{noformat}
> CC [~VenuReddy] [~hemanth619] [~ngangam]
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
