Return-Path: X-Original-To: apmail-hive-issues-archive@minotaur.apache.org Delivered-To: apmail-hive-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 569C517369 for ; Sat, 4 Apr 2015 00:32:33 +0000 (UTC) Received: (qmail 56386 invoked by uid 500); 4 Apr 2015 00:32:33 -0000 Delivered-To: apmail-hive-issues-archive@hive.apache.org Received: (qmail 56365 invoked by uid 500); 4 Apr 2015 00:32:33 -0000 Mailing-List: contact issues-help@hive.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@hive.apache.org Delivered-To: mailing list issues@hive.apache.org Received: (qmail 56355 invoked by uid 99); 4 Apr 2015 00:32:33 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 04 Apr 2015 00:32:33 +0000 Date: Sat, 4 Apr 2015 00:32:33 +0000 (UTC) From: "Szehon Ho (JIRA)" To: issues@hive.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HIVE-10206) Improve Alter Table to not initialize Serde unnecessarily MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/HIVE-10206?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Szehon Ho updated HIVE-10206: ----------------------------- [~jxiang], [~spena] can you guys take a look and see if this improvement makes sense? [~Ferd] I will take this as its not an existing with current trunk, just 1.1, but you might want to take a look as well? > Improve Alter Table to not initialize Serde unnecessarily > --------------------------------------------------------- > > Key: HIVE-10206 > URL: https://issues.apache.org/jira/browse/HIVE-10206 > Project: Hive > Issue Type: Improvement > Components: Serializers/Deserializers > Affects Versions: 1.1.0 > Reporter: Szehon Ho > Assignee: Ferdinand Xu > Priority: Minor > Attachments: HIVE-10206.patch > > > Create an avro table with an external avsc file like: > {noformat} > CREATE TABLE test(...) > ROW FORMAT SERDE > 'org.apache.hadoop.hive.serde2.avro.AvroSerDe' > STORED AS INPUTFORMAT > 'org.apache.hadoop.hive.ql.io.avro.AvroContainerInputFormat' > OUTPUTFORMAT > 'org.apache.hadoop.hive.ql.io.avro.AvroContainerOutputFormat' > TBLPROPERTIES ( > 'avro.schema.url'='file:///Users/szehon/Temp/test.avsc', > 'kite.compression.type'='snappy', > 'transient_lastDdlTime'='1427996456') > {noformat} > Delete test.avsc file. > Try to modify the table properties: > {noformat} > alter table test set tblproperties ('avro.schema.url'='file:///Users/szehon/Temp/test2.avsc'); > {noformat} > Will throw an exception like AvroSerdeException: > {noformat} > at org.apache.hadoop.hive.serde2.avro.AvroSerdeUtils.determineSchemaOrThrowException(AvroSerdeUtils.java:119) > at org.apache.hadoop.hive.serde2.avro.AvroSerDe.determineSchemaOrReturnErrorSchema(AvroSerDe.java:163) > at org.apache.hadoop.hive.serde2.avro.AvroSerDe.initialize(AvroSerDe.java:101) > at org.apache.hadoop.hive.serde2.avro.AvroSerDe.initialize(AvroSerDe.java:78) > at org.apache.hadoop.hive.serde2.SerDeUtils.initializeSerDe(SerDeUtils.java:520) > at org.apache.hadoop.hive.metastore.MetaStoreUtils.getDeserializer(MetaStoreUtils.java:377) > at org.apache.hadoop.hive.ql.metadata.Table.getDeserializerFromMetaStore(Table.java:274) > at org.apache.hadoop.hive.ql.metadata.Table.getDeserializer(Table.java:256) > at org.apache.hadoop.hive.ql.metadata.Table.getCols(Table.java:595) > at org.apache.hadoop.hive.ql.exec.DDLTask.alterTableOrSinglePartition(DDLTask.java:3383) > at org.apache.hadoop.hive.ql.exec.DDLTask.alterTable(DDLTask.java:3340) > at org.apache.hadoop.hive.ql.exec.DDLTask.execute(DDLTask.java:332) > at org.apache.hadoop.hive.ql.exec.Task.executeTask(Task.java:160) > at org.apache.hadoop.hive.ql.exec.TaskRunner.runSequential(TaskRunner.java:88) > at org.apache.hadoop.hive.ql.Driver.launchTask(Driver.java:1638) > at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1397) > at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1181) > at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1047) > at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1037) > at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:207) > at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:159) > at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:370) > at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:754) > at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:675) > at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:615) > at sun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethodAccessorImpl.java:-1) > at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) > at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) > at java.lang.reflect.Method.invoke(Method.java:606) > at org.apache.hadoop.util.RunJar.run(RunJar.java:221) > at org.apache.hadoop.util.RunJar.main(RunJar.java:136) > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)