hbase completebulkload to a new table fails in a race
-----------------------------------------------------
Key: HBASE-5351
URL: https://issues.apache.org/jira/browse/HBASE-5351
Project: HBase
Issue Type: Bug
Components: mapreduce
Affects Versions: 0.92.0, 0.94.0
Reporter: Gregory Chanan
Assignee: Gregory Chanan
I have a test that tests vanilla use of importtsv with importtsv.bulk.output
option followed by completebulkload to a new table.
This sometimes fails as follows:
11/12/19 15:02:39 WARN client.HConnectionManager$HConnectionImplementation:
Encountered problems when prefetch META table:
org.apache.hadoop.hbase.TableNotFoundException: Cannot find row in .META. for
table: ml_items_copy, row=ml_items_copy,,99999999999999
at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:157)
at org.apache.hadoop.hbase.client.MetaScanner.access$000(MetaScanner.java:52)
at org.apache.hadoop.hbase.client.MetaScanner$1.connect(MetaScanner.java:130)
at org.apache.hadoop.hbase.client.MetaScanner$1.connect(MetaScanner.java:127)
at
org.apache.hadoop.hbase.client.HConnectionManager.execute(HConnectionManager.java:359)
at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:127)
at org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:103)
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.prefetchRegionCache(HConnectionManager.java:875)
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegionInMeta(HConnectionManager.java:929)
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:817)
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:781)
at org.apache.hadoop.hbase.client.HTable.finishSetup(HTable.java:247)
at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:211)
at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:171)
at
org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles.createTable(LoadIncrementalHFiles.java:673)
at
org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles.run(LoadIncrementalHFiles.java:697)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:69)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:83)
at
org.apache.hadoop.hbase.mapreduce.LoadIncrementalHFiles.main(LoadIncrementalHFiles.java:707)
The race appears to be calling HbAdmin.createTableAsync(htd, keys) and then
creating an HTable object before that call has actually completed.
The following change to
/src/main/java/org/apache/hadoop/hbase/mapreduce/LoadIncrementalHFiles.java
appears to fix the problem, but I have not been able to reproduce the race
reliably, in order to write a test.
{code}
- HTable table = new HTable(this.cfg, tableName);
-
- HConnection conn = table.getConnection();
int ctr = 0;
- while (!conn.isTableAvailable(table.getTableName()) && (ctr<TABLE_CREATE_MA
+ while (!this.hbAdmin.isTableAvailable(tableName) && (ctr<TABLE_CREATE_MAX_R
{code}
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
