hive-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Sarath Chandra <sarathchandra.jos...@algofusiontech.com>
Subject Re: Error communicating with metastore
Date Fri, 07 Aug 2015 13:13:02 GMT
Thanks Eugene, Alan.

@Alan,
As suggested checked the logs, here is what I found -

   - On starting metastore server, I'm seeing following messages in the log
   file -

*2015-08-07 18:32:56,678 ERROR [Thread-7]: compactor.Initiator
(Initiator.java:run(134)) - Caught an exception in the main loop of
compactor initiator, exiting MetaException(message:Unable to get jdbc
connection from pool, READ_COMMITTED and SERIALIZABLE are the only valid
transaction levels)*
*        at
org.apache.hadoop.hive.metastore.txn.TxnHandler.getDbConn(TxnHandler.java:811)*
*        at
org.apache.hadoop.hive.metastore.txn.CompactionTxnHandler.revokeFromLocalWorkers(CompactionTxnHandler.java:443)*
*        at
org.apache.hadoop.hive.ql.txn.compactor.Initiator.recoverFailedCompactions(Initiator.java:147)*
*        at
org.apache.hadoop.hive.ql.txn.compactor.Initiator.run(Initiator.java:64)*

   - On bringing up the hive shell, I get the following messages -

tion - enable connectionWatch for additional debugging assistance or set
disableConnectionTracking to true to disable this feature entirely.
2015-08-07 18:38:51,614 WARN
 [org.spark-project.guava.common.base.internal.Finalizer]:
bonecp.ConnectionPartition (ConnectionPartition.java:finalizeReferent(162))
- BoneCP detected an unclosed connection and will now attempt to close it
for you. You should be closing this connection in your application - enable
connectionWatch for additional debugging assistance or set
disableConnectionTracking to true to disable this feature entirely.
2015-08-07 18:38:51,768 DEBUG [pool-3-thread-1]: metastore.ObjectStore
(ObjectStore.java:debugLog(6435)) - Commit transaction: count = 0, isactive
true at:

org.apache.hadoop.hive.metastore.ObjectStore.getFunctions(ObjectStore.java:6657)

   - On firing "show tables" command, I get the following messages in the
   log file -

2015-08-07 18:41:02,511 INFO  [main]: hive.metastore
(HiveMetaStoreClient.java:open(297)) - Trying to connect to metastore with
URI thrift://sarath:9083
2015-08-07 18:41:02,511 INFO  [main]: hive.metastore
(HiveMetaStoreClient.java:open(385)) - Connected to metastore.
2015-08-07 18:41:22,549 ERROR [main]: ql.Driver
(SessionState.java:printError(545)) - FAILED: Error in determing valid
transactions: 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:281)
        at org.apache.hadoop.hive.ql.Driver.recordValidTxns(Driver.java:842)
        at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1036)
        at org.apache.hadoop.hive.ql.Driver.run(Driver.java:911)
        at org.apache.hadoop.hive.ql.Driver.run(Driver.java:901)
        at
org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:268)
        at
org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:220)
        at
org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:423)
        at
org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:792)
        at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:686)
        at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:625)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
Caused by: org.apache.thrift.transport.TTransportException:
java.net.SocketTimeoutException: Read timed out
        at
org.apache.thrift.transport.TIOStreamTransport.read(TIOStreamTransport.java:129)
        at
org.apache.thrift.transport.TTransport.readAll(TTransport.java:84)
        at
org.apache.thrift.protocol.TBinaryProtocol.readAll(TBinaryProtocol.java:378)
        at
org.apache.thrift.protocol.TBinaryProtocol.readI32(TBinaryProtocol.java:297)
        at
org.apache.thrift.protocol.TBinaryProtocol.readMessageBegin(TBinaryProtocol.java:204)
        at
org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:69)
        at
org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Client.recv_get_open_txns(ThriftHiveMetastore.java:3367)
        at
org.apache.hadoop.hive.metastore.api.ThriftHiveMetastore$Client.get_open_txns(ThriftHiveMetastore.java:3355)
        at
org.apache.hadoop.hive.metastore.HiveMetaStoreClient.getValidTxns(HiveMetaStoreClient.java:1545)
        at
org.apache.hadoop.hive.ql.lockmgr.DbTxnManager.getValidTxns(DbTxnManager.java:279)
        ... 15 more
Caused by: java.net.SocketTimeoutException: Read timed out
        at java.net.SocketInputStream.socketRead0(Native Method)
        at java.net.SocketInputStream.read(SocketInputStream.java:129)
        at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
        at java.io.BufferedInputStream.read1(BufferedInputStream.java:258)
        at java.io.BufferedInputStream.read(BufferedInputStream.java:317)
        at
org.apache.thrift.transport.TIOStreamTransport.read(TIOStreamTransport.java:127)
        ... 24 more

Let me know if there is anything to be taken care in the configuration or
setup.

On Wed, Aug 5, 2015 at 4:40 AM, Alan Gates <alanfgates@gmail.com> wrote:

> Ok, the next step is to look at the logs from your Hive metastore server
> and see exactly what's happening.  The error you're seeing is from the
> client.  On your metastore server there should be logs with the same
> timestamp giving details on why the transaction operation failed.
>
> Alan.
>
> Sarath Chandra <sarathchandra.josyam@algofusiontech.com>
> August 3, 2015 at 20:02
> Thanks Alan.
>
> Yes I've run metastore scripts for oracle instance. Infact I've removed my
> previous metastore and created a fresh one by running the schema creation
> script for 1.2.1. I've looked into the new schema and able to see the table
> TXNS. I've also removed the hdfs location "/user/hive/warehouse" and
> created a fresh one.
>
> But still I'm facing this issue.
>
>
>
> Alan Gates <alanfgates@gmail.com>
> August 3, 2015 at 8:29
> Did you run the hive metastore upgrade scripts for your oracle instance?
> This error message usually means the transaction related tables have not
> been created in your database.  Somewhere in your distribution there should
> be a set of upgrade scripts.  Look for scripts of the form:
>
> scripts/metastore/upgrade/oracle/upgrade-0.13.0-to-0.14.0.oracle.sql
>
> You'll want to run all of the ones from 0.13 to 1.2 (0.13->0.14,
> 0.14->1.1, 1.1->1.2).  The 0.13->0.14 scripts assume that you added the
> transaction tables as part of upgrading to Hive 0.13.  If you did not you
> will need to first run hive-txn-schema-0.13.0.oracle.sql which will create
> the initial transaction tables.  You can determine whether this was done by
> looking for a table named TXNS in the hive schema on your Oracle db.
>
> Alan.
>
> Sarath Chandra <sarathchandra.josyam@algofusiontech.com>
> August 3, 2015 at 6:29
> Hi All,
>
> Earlier I was using hive 0.13.0 and now trying to migrate to latest
> version to utilize the transaction support introduced from hive 0.14.0.
>
> I downloaded hive 1.2.1, created a metastore in oracle database and
> provided all the required configuration parameters in conf/hive-site.xml to
> enable transactions. For the parameter "hive.txn.manager" given the value
> "org.apache.hadoop.hive.ql.lockmgr.DbTxnManager".
>
> From the hive prompt when I fire the command "show tables;" I'm getting
> the below exception -
> *FAILED: Error in determining valid transactions: Error communicating with
> the metastore*
>
> But if disable the "hive.txn.manager" parameter in hive-site.xml then the
> command works fine.
>
> Is there anything else to be configured which I'm missing?
>
> Thanks & Regards,
> Sarath.
>
>

Mime
View raw message