I have not initialized Metastore for Hive.
How can I do that? I know I have to run schematool with --service metastore, but am getting an error
Exception in thread "main" java.io.FileNotFoundException: File file:/C:/DB/HADOOP/Hive-3.1.2/bin/nitSchema does not exist
Related
I was doing multi-node setup using Apache distribution .I was able to complete hadoop installation successfully (Hadoop 2.7.3).
When I tried hive (Hive 2.3),its working without issues with the default metastore(derby).Then I changed the hive-site.xml to point to my external postgresDB
I gave host,username,password as per the tutorial .But when I ran the schemainit it is faliling as bellow ,still showing derby details and initialization
is failing .Anybody faced the same issue ever?
bash-4.2$ /data/hive/bin/schematool -initSchema -dbType postgres --verbose
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/data/hive/lib/log4j-slf4j-impl-2.6.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/data/hadoop/share/hadoop/common/lib/slf4j-log4j12-1.7.10.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]
Metastore connection URL: jdbc:derby:;databaseName=metastore_db;create=true
Metastore Connection Driver : org.apache.derby.jdbc.EmbeddedDriver
Metastore connection User: APP
Starting metastore schema initialization to 2.3.0
Initialization script hive-schema-2.3.0.postgres.sql
Connecting to jdbc:derby:;databaseName=metastore_db;create=true
Connected to: Apache Derby (version 10.10.2.0 - (1582446))
Driver: Apache Derby Embedded JDBC Driver (version 10.10.2.0 - (1582446))
Transaction isolation: TRANSACTION_READ_COMMITTED
0: jdbc:derby:> !autocommit on
Autocommit status: true
0: jdbc:derby:> SET statement_timeout = 0
Error: Syntax error: Encountered "statement_timeout" at line 1, column 5. (state=42X01,code=30000)
Closing: 0: jdbc:derby:;databaseName=metastore_db;create=true
org.apache.hadoop.hive.metastore.HiveMetaException: Schema initialization FAILED! Metastore state would be inconsistent !!
Underlying cause: java.io.IOException : Schema script failed, errorcode 2
org.apache.hadoop.hive.metastore.HiveMetaException: Schema initialization FAILED! Metastore state would be inconsistent !!
at org.apache.hive.beeline.HiveSchemaTool.doInit(HiveSchemaTool.java:590)
at org.apache.hive.beeline.HiveSchemaTool.doInit(HiveSchemaTool.java:563)
at org.apache.hive.beeline.HiveSchemaTool.main(HiveSchemaTool.java:1145)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
Caused by: java.io.IOException: Schema script failed, errorcode 2
at org.apache.hive.beeline.HiveSchemaTool.runBeeLine(HiveSchemaTool.java:980)
at org.apache.hive.beeline.HiveSchemaTool.runBeeLine(HiveSchemaTool.java:959)
at org.apache.hive.beeline.HiveSchemaTool.doInit(HiveSchemaTool.java:586)
... 8 more
*** schemaTool failed ***
I have installed Hive, added it to PATH and am able to open it using the hive command in Terminal.
However, when I attempt to run a basic command such as
SHOW TABLES;
I am presented with the error:
FAILED: SemanticException org.apache.hadoop.hive.ql.metadata.HiveException: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient
The instructions I am following do not suggest that anything has to be instantiated.
For reference, I am using the book Hadoop: The Definitive Guide (4th Edition) and running it locally on my machine.
When running JPS the following services are running:
2528 DataNode
7232 RunJar
2441 NameNode
7401 Jps
2634 SecondaryNameNode
282
2842 NodeManager
2751 ResourceManager
I fixed by removing the derby database files
rm -rf $HIVE_HOME/bin/metastore_db
and
$HIVE_HOME/bin/schematool -initSchema -dbType derby
I was able to resolve this problem by initializing the schema. I am surprised it is not mentioned anywhere.
To initialize the schema:
Navigate to your Hive installation folder
[install folder]/bin/schematool -initSchema -dbType derby
Next you should receive some messages confirming
Metastore Connection Driver : org.apache.derby.jdbc.EmbeddedDriver
Metastore connection User: APP
Starting metastore schema initialization to 2.3.0
Initialization script hive-schema-2.3.0.derby.sql
Initialization script completed
schemaTool completed
Start hive
Run any basic commands to determine Hive is functioning such as SHOW TABLES;
When run the spark example:
spark-hive-tables , I get errors on hadoop UI
User class threw exception: java.lang.RuntimeException:
java.lang.RuntimeException: Unable to instantiate
org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient
and warning
executor.CoarseGrainedExecutorBackend: An unknown (x.x.x.x:x) driver
disconnected.
but I have start hive metastore on my spark-yarn cluster, what should I do?
It means you haven't started your Metastore service, so start you metastore service where you installed hive or in the remote if you have your metastore in remote.
To start metastore use hive --service metastore
what output you got after starting metastore service
I found out that i am using thrift server.after starting thrift by cmd
/SPARKPATH/sbin/start-thriftserver.sh ,here comes another error "java.lang.ClassNotFoundException: org.datanucleus.api.jdo.JDOPersistenceManagerFactory" , which display errors like my title here. and it can be fixed by add --jars /SPARKPATH/lib_managed/jars/datanucleus-api-jdo-3.2.6.jar,/SPARKPATH/lib_managed/jars/datanucleus-core-3.2.10.jar,/SPARKPATH/lib_managed/jars/datanucleus-rdbms-3.2.9.jar
I am using Hadoop-2.6.0 secured with kerberos. Installed hive server2 1.1.0 version with derby database as connectionurl, enabled security and enabled Authorization. When enabling transaction configuration, I am getting the below exception and cannot execute any queries;
Exception
Error: Error while compiling statement: FAILED: LockException [Error 10280]: Error communicating with the metastore (state=42000,code=10280)
Logs
[Error 10280]: Error communicating with the metastore
org.apache.hadoop.hive.ql.lockmgr.LockException: Error communicating with the metastore
at org.apache.hadoop.hive.ql.lockmgr.DbTxnManager.getValidTxns(DbTxnManager.java:300)
at org.apache.hadoop.hive.ql.Driver.recordValidTxns(Driver.java:927)
Caused by: MetaException(message:Unable to select from transaction database, java.sql.SQLSyntaxErrorException: Table/View 'TXNS' does not exist.
So i have created a below property in hive-site.xml file as mentioned in a blog here
Configuration
<property>
<name>hive.in.test</name>
<value>true</value>
</property>
If i set the above property then getting the below exception where i am struck and unable to solve it. I cannot run any query even use mydb;
Exception
Error: Error while compiling statement: FAILED: NullPointerException null (state=42000,code=40000)
Logs
Error executing statement:
org.apache.hive.service.cli.HiveSQLException: Error while compiling statement: FAILED: NullPointerException null
at org.apache.hive.service.cli.operation.Operation.toSQLException(Operation.java:315)
at org.apache.hive.service.cli.operation.SQLOperation.prepare(SQLOperation.java:103)
Caused by: java.lang.NullPointerException
at org.apache.hadoop.hive.metastore.txn.TxnHandler.checkQFileTestHack(TxnHandler.java:1146)
at org.apache.hadoop.hive.metastore.txn.TxnHandler.(TxnHandler.java:117)
I need a solution to work ACID transactions in Hive Server2. I found two related questions but not solved my issue.
hive 0.14 update and delete queries configuration error
Hive Transactions are crashing
Upgrade your hive mysql metastore db with hive-txn-schema-0.14.0.mysql.sql as follows..
mysql> SOURCE /usr/local/hadoop/hive/scripts/metastore/upgrade/mysql/hive-txn-schema-0.14.0.mysql.sql;
I am using Hive 0.11 and Metastore in local mode. When I try to start the Metastore daemon, it exits after spitting the following error message:
2013-11-21 08:47:19.541 GMT Thread[main,5,main] java.io.FileNotFoundException: derby.log (Permission denied)
2013-11-21 08:47:19.646 GMT Thread[main,5,main] Cleanup action starting
ERROR XBM0H: Directory /metastore_db cannot be created.
This is my hive-site.xml. I am using MySQL as Metastore storage. What I don't understand is why is Hive trying to create metastore_db locally.
Thanks.
Set hive.metastore.local property as false. (Removed as of Hive 0.10: If hive.metastore.uris is empty local mode is assumed, remote otherwise)
Set hive.metastore.uris property with valid uri (Host and port for the Thrift metastore server)
For eg:
<property>
<name>hive.metastore.uris</name>
<value>thrift://hap-db:9083</value>
<description>IP address (or fully-qualified domain name) and port of the metastore host</description>
</property>
Hi faced similar issue on hive 0.14. I had installed hive as root user and was trying to run hive services as a sudo user i use for all hadoop jobs.
Once i changed the installation owner to sudo and restarted it worked . so this error is mostly related to file permissions issue.