- html - 出于某种原因,IE8 对我的 Sass 文件中继承的 html5 CSS 不友好?
- JMeter 在响应断言中使用 span 标签的问题
- html - 在 :hover and :active? 上具有不同效果的 CSS 动画
- html - 相对于居中的 html 内容固定的 CSS 重复背景?
从具有数百万条记录(20GB大小)的大表执行到空表的插入时。 Hive CLI和beeline中的执行方式不同。
Hive CLI:它在Yarn中创建了两个TEZ作业,可能是mapper和reducer,并在大约413秒内完成。
Beeline:它在Yarn中创建了第一个TEZ作业,其他是MapReduce作业,超过150个作业,耗时近2个小时。
Hiveserver2 beeline对于TEZ作业的预期行为是因为它在内部创建MapReduce作业?
环境详细信息:
**Hive CLI log:**
`2018-08-07T18:22:56,482 INFO [main] exec.Task: Dag name: insert into default.t...db.temp_large_table3(Stage-1)
2018-08-07T18:22:56,493 INFO [main] ql.Context: New scratch dir is hdfs://edhcluster/tmp/hive/scratch/hive/a501276d-2015-435b-85c5-4d40534ac162/hive_2018-08-07_18-22-53_167_2618699013418541798-1
2018-08-07T18:22:56,532 INFO [main] tez.DagUtils: Vertex has custom input? false
2018-08-07T18:22:56,589 INFO [main] exec.SerializationUtilities: Serializing MapWork using kryo
2018-08-07T18:22:56,601 INFO [main] exec.Utilities: Setting plan: /tmp/hive/scratch/hive/a501276d-2015-435b-85c5-4d40534ac162/hive_2018-08-07_18-22-53_167_2618699013418541798-1/hive/_tez_scratch_dir/d5cc1718-38b1-49ba-a97e-ab9f78415b62/map.xml
2018-08-07T18:22:56,669 INFO [main] fs.FSStatsPublisher: created : hdfs://edhcluster/user/hive/staging_hive_2018-08-07_18-22-53_167_2618699013418541798-1/-ext-10001
2018-08-07T18:22:56,686 INFO [main] client.TezClient: Submitting dag to TezSession, sessionName=HIVE-a501276d-2015-435b-85c5-4d40534ac162, applicationId=application_1533623337748_0376, dagName=insert into default.t...db.temp_large_table3(Stage-1), callerContext={ context=HIVE, callerType=HIVE_QUERY_ID, callerId=hive_20180807182253_52487095-48c1-4847-92cd-6e60121e8ae2 }
2018-08-07T18:22:57,206 INFO [main] client.TezClient: Submitted dag to TezSession, sessionName=HIVE-a501276d-2015-435b-85c5-4d40534ac162, applicationId=application_1533623337748_0376, dagId=dag_1533623337748_0376_1, dagName=insert into default.t...db.temp_large_table3(Stage-1)
2018-08-07T18:22:57,277 INFO [main] SessionState:
2018-08-07T18:22:57,719 INFO [main] SessionState: Status: Running (Executing on YARN cluster with App id application_1533623337748_0376)
2018-08-07T18:22:57,721 INFO [main] SessionState: Map 1: 0/165
2018-08-07T18:23:00,542 INFO [main] SessionState: Map 1: 0(+1)/165
2018-08-07T18:23:01,551 INFO [main] SessionState: Map 1: 0(+2)/165
:
:
2018-08-07T18:30:01,688 INFO [main] SessionState: Map 1: 165/165
2018-08-07T18:30:01,713 INFO [main] counters.Limits: Counter limits initialized with parameters: GROUP_NAME_MAX=256, MAX_GROUPS=500, COUNTER_NAME_MAX=64, MAX_COUNTERS=1200
2018-08-07T18:30:01,726 INFO [main] exec.FileSinkOperator: Moving tmp dir: hdfs://edhcluster/user/hive/staging_hive_2018-08-07_18-22-53_167_2618699013418541798-1/_tmp.-ext-10000 to: hdfs://edhcluster/user/hive/staging_hive_2018-08-07_18-22-53_167_2618699013418541798-1/-ext-10000
2018-08-07T18:30:01,796 INFO [main] ql.Driver: Starting task [Stage-2:DEPENDENCY_COLLECTION] in serial mode
2018-08-07T18:30:01,796 INFO [main] ql.Driver: Starting task [Stage-0:MOVE] in serial mode
2018-08-07T18:30:01,797 INFO [main] exec.Task: Loading data to table default.temp_tro1 from hdfs://edhcluster/user/hive/staging_hive_2018-08-07_18-22-53_167_2618699013418541798-1/-ext-10000
2018-08-07T18:30:11,683 WARN [main] serde2.AbstractEncodingAwareSerDe: The data may not be properly converted to target charset ISO-8859-1
2018-08-07T18:30:11,759 INFO [main] ql.Driver: Starting task [Stage-3:STATS] in serial mode
2018-08-07T18:30:11,759 INFO [main] exec.StatsTask: Executing stats task
2018-08-07T18:30:11,891 INFO [main] fs.FSStatsPublisher: created : hdfs://edhcluster/user/hive/staging_hive_2018-08-07_18-22-53_167_2618699013418541798-1/-ext-10001
2018-08-07T18:30:11,985 INFO [main] fs.FSStatsAggregator: Read stats : {default.temp_tro1/={rawDataSize=133428373, numRows=789517}}
2018-08-07T18:30:12,003 INFO [main] fs.FSStatsAggregator: Read stats : {default.temp_tro1/={rawDataSize=133428204, numRows=789516}}
`
====
**Beeline log:**
`2018-08-07T16:29:13,856 INFO [HiveServer2-Background-Pool: Thread-1549] ql.Context: New scratch dir is hdfs://edhcluster/tmp/hive/scratch/hive/0887b266-675a
-4fb2-8c85-3a27ebb3b9fc/hive_2018-08-07_16-29-12_750_8973639287951385407-3
2018-08-07T16:29:13,900 INFO [HiveServer2-Background-Pool: Thread-1549] tez.DagUtils: Vertex has custom input? false
2018-08-07T16:29:13,901 INFO [HiveServer2-Background-Pool: Thread-1549] exec.SerializationUtilities: Serializing MapWork using kryo
2018-08-07T16:29:13,903 INFO [HiveServer2-Background-Pool: Thread-1549] exec.Utilities: Setting plan: /tmp/hive/scratch/hive/0887b266-675a-4fb2-8c85-3a27ebb
3b9fc/hive_2018-08-07_16-29-12_750_8973639287951385407-3/hive/_tez_scratch_dir/6f4620d8-310c-4aff-bbe8-6f69ea9d1341/map.xml
2018-08-07T16:29:13,934 INFO [HiveServer2-Background-Pool: Thread-1549] fs.FSStatsPublisher: created : hdfs://edhcluster/tmp/hive/staging_hive_2018-08-07_16
-29-12_750_8973639287951385407-1/-ext-10001
2018-08-07T16:29:13,938 INFO [HiveServer2-Background-Pool: Thread-1549] client.TezClient: Submitting dag to TezSession, sessionName=HIVE-e2dfe4df-37f0-4d95-
946d-30557075f807, applicationId=application_1533623337748_0148, dagName=insert into default.t...db.temp_large_table3(Stage-1), callerContext={ context=HIVE,
callerType=HIVE_QUERY_ID, callerId=hive_20180807162912_519c1503-c151-4da7-b5a2-bd067e9c42b9 }
2018-08-07T16:29:14,127 INFO [HiveServer2-Background-Pool: Thread-1549] client.TezClient: Submitted dag to TezSession, sessionName=HIVE-e2dfe4df-37f0-4d95-9
46d-30557075f807, applicationId=application_1533623337748_0148, dagId=dag_1533623337748_0148_2, dagName=insert into default.t...db.temp_large_table3(Stage-1)
2018-08-07T16:29:14,185 INFO [HiveServer2-Background-Pool: Thread-1549] SessionState:
2018-08-07T16:29:14,390 INFO [HiveServer2-Background-Pool: Thread-1549] SessionState: Status: Running (Executing on YARN cluster with App id application_153
3623337748_0148)
2018-08-07T16:29:14,390 INFO [HiveServer2-Background-Pool: Thread-1549] SessionState: Map 1: 0/171
2018-08-07T16:29:16,600 INFO [HiveServer2-Background-Pool: Thread-1549] SessionState: Map 1: 0(+3)/171
:
:
2018-08-07T16:35:57,955 INFO [HiveServer2-Background-Pool: Thread-1549] SessionState: Map 1: 171/171
2018-08-07T16:35:57,963 INFO [HiveServer2-Background-Pool: Thread-1549] exec.FileSinkOperator: Moving tmp dir: hdfs://edhcluster/tmp/hive/staging_hive_2018-
08-07_16-29-12_750_8973639287951385407-1/_tmp.-ext-10000 to: hdfs://edhcluster/tmp/hive/staging_hive_2018-08-07_16-29-12_750_8973639287951385407-1/-ext-10000
2018-08-07T16:35:57,996 INFO [HiveServer2-Background-Pool: Thread-1549] ql.Driver: Starting task [Stage-2:DEPENDENCY_COLLECTION] in serial mode
2018-08-07T16:35:57,996 INFO [HiveServer2-Background-Pool: Thread-1549] ql.Driver: Starting task [Stage-0:MOVE] in serial mode
2018-08-07T16:35:57,996 INFO [HiveServer2-Background-Pool: Thread-1549] exec.Task: Loading data to table default.temp_tro from hdfs://edhcluster/tmp/hive/st
aging_hive_2018-08-07_16-29-12_750_8973639287951385407-1/-ext-10000
2018-08-07T16:35:58,158 INFO [HiveServer2-Background-Pool: Thread-1549] metadata.Hive: Copying source hdfs://edhcluster/tmp/hive/staging_hive_2018-08-07_16-
29-12_750_8973639287951385407-1/-ext-10000/000000_0 to hdfs://edhcluster/user/hive/warehouse/temp_tro/000000_0 because HDFS encryption zones are different.
2018-08-07T16:35:58,158 INFO [HiveServer2-Background-Pool: Thread-1549] common.FileUtils: Source is 129368810 bytes. (MAX: 33554432)
2018-08-07T16:35:58,158 INFO [HiveServer2-Background-Pool: Thread-1549] common.FileUtils: Launch distributed copy (distcp) job.
2018-08-07T16:35:58,239 INFO [HiveServer2-Background-Pool: Thread-1549] tools.DistCp: Input Options: DistCpOptions{atomicCommit=false, syncFolder=true, dele
teMissing=false, ignoreFailures=false, maxMaps=20, sslConfigurationFile='null', copyStrategy='uniformsize', sourceFileListing=null, sourcePaths=[hdfs://edhcl
uster/tmp/hive/staging_hive_2018-08-07_16-29-12_750_8973639287951385407-1/-ext-10000/000000_0], targetPath=hdfs://edhcluster/user/hive/warehouse/temp_tro/000
000_0, targetPathExists=false, preserveRawXattrs=false}
2018-08-07T16:35:58,288 INFO [HiveServer2-Background-Pool: Thread-1549] hdfs.DFSClient: Created HDFS_DELEGATION_TOKEN token 10139 for hive on ha-hdfs:edhclu
ster
2018-08-07T16:35:58,295 INFO [HiveServer2-Background-Pool: Thread-1549] security.TokenCache: Got dt for hdfs://edhcluster; Kind: HDFS_DELEGATION_TOKEN, Serv
ice: ha-hdfs:edhcluster, Ident: (HDFS_DELEGATION_TOKEN token 10139 for hive)
2018-08-07T16:35:58,295 WARN [HiveServer2-Background-Pool: Thread-1549] token.Token: Cannot find class for token kind kms-dt
2018-08-07T16:35:58,295 INFO [HiveServer2-Background-Pool: Thread-1549] security.TokenCache: Got dt for hdfs://edhcluster; Kind: kms-dt, Service: 160.88.112
.163:9393, Ident: 00 04 68 69 76 65 04 79 61 72 6e 04 68 69 76 65 8a 01 65 13 87 4a d6 8a 01 65 37 93 ce d6 8e 1d f6 24
2018-08-07T16:35:58,738 WARN [HiveServer2-Background-Pool: Thread-1549] token.Token: Cannot find class for token kind kms-dt
2018-08-07T16:35:58,738 INFO [HiveServer2-Background-Pool: Thread-1549] security.TokenCache: Got dt for hdfs://edhcluster; Kind: kms-dt, Service: 160.88.112
.162:9393, Ident: 00 04 68 69 76 65 04 79 61 72 6e 04 68 69 76 65 8a 01 65 13 87 4c 91 8a 01 65 37 93 d0 91 8e 1d 49 23
2018-08-07T16:35:58,745 WARN [HiveServer2-Background-Pool: Thread-1549] mapreduce.JobResourceUploader: Hadoop command-line option parsing not performed. Imp
lement the Tool interface and execute your application with ToolRunner to remedy this.
2018-08-07T16:35:59,000 INFO [HiveServer2-Handler-Pool: Thread-53] session.SessionState: Updating thread name to 0887b266-675a-4fb2-8c85-3a27ebb3b9fc HiveSe
rver2-Handler-Pool: Thread-53
2018-08-07T16:35:59,000 INFO [HiveServer2-Handler-Pool: Thread-53] session.SessionState: Resetting thread name to HiveServer2-Handler-Pool: Thread-53
2018-08-07T16:35:59,130 INFO [HiveServer2-Background-Pool: Thread-1549] mapreduce.JobSubmitter: number of splits:1
2018-08-07T16:35:59,313 INFO [HiveServer2-Background-Pool: Thread-1549] mapreduce.JobSubmitter: Submitting tokens for job: job_1533623337748_0215
2018-08-07T16:35:59,313 WARN [HiveServer2-Background-Pool: Thread-1549] token.Token: Cannot find class for token kind kms-dt
2018-08-07T16:35:59,313 INFO [HiveServer2-Background-Pool: Thread-1549] mapreduce.JobSubmitter: Kind: kms-dt, Service: 160.88.112.162:9393, Ident: 00 04 68
69 76 65 04 79 61 72 6e 04 68 69 76 65 8a 01 65 13 87 4c 91 8a 01 65 37 93 d0 91 8e 1d 49 23
2018-08-07T16:35:59,313 WARN [HiveServer2-Background-Pool: Thread-1549] token.Token: Cannot find class for token kind kms-dt
2018-08-07T16:35:59,313 INFO [HiveServer2-Background-Pool: Thread-1549] mapreduce.JobSubmitter: Kind: kms-dt, Service: 160.88.112.163:9393, Ident: 00 04 68
69 76 65 04 79 61 72 6e 04 68 69 76 65 8a 01 65 13 87 4a d6 8a 01 65 37 93 ce d6 8e 1d f6 24
2018-08-07T16:35:59,313 WARN [HiveServer2-Background-Pool: Thread-1549] token.Token: Cannot find class for token kind HIVE_DELEGATION_TOKEN
2018-08-07T16:35:59,313 INFO [HiveServer2-Background-Pool: Thread-1549] mapreduce.JobSubmitter: Kind: HIVE_DELEGATION_TOKEN, Service: HiveServer2Impersonati
onToken, Ident: 00 04 68 69 76 65 04 68 69 76 65 00 8a 01 65 13 76 fe e0 8a 01 65 37 83 82 e0 01 8e 02 73
2018-08-07T16:35:59,313 INFO [HiveServer2-Background-Pool: Thread-1549] mapreduce.JobSubmitter: Kind: HDFS_DELEGATION_TOKEN, Service: ha-hdfs:edhcluster, Id
ent: (HDFS_DELEGATION_TOKEN token 10139 for hive)
2018-08-07T16:35:59,520 INFO [HiveServer2-Background-Pool: Thread-1549] impl.YarnClientImpl: Submitted application application_1533623337748_0215
2018-08-07T16:35:59,521 INFO [HiveServer2-Background-Pool: Thread-1549] mapreduce.Job: The url to track the job: https://bdtst1a.server:8888
/proxy/application_1533623337748_0215/
2018-08-07T16:35:59,521 INFO [HiveServer2-Background-Pool: Thread-1549] tools.DistCp: DistCp job-id: job_1533623337748_0215
2018-08-07T16:35:59,521 INFO [HiveServer2-Background-Pool: Thread-1549] mapreduce.Job: Running job: job_1533623337748_0215
2018-08-07T16:36:04,002 INFO [HiveServer2-Handler-Pool: Thread-53] session.SessionState: Updating thread name to 0887b266-675a-4fb2-8c85-3a27ebb3b9fc HiveSe
rver2-Handler-Pool: Thread-53
2018-08-07T16:36:04,002 INFO [HiveServer2-Handler-Pool: Thread-53] session.SessionState: Resetting thread name to HiveServer2-Handler-Pool: Thread-53
2018-08-07T16:36:06,571 INFO [HiveServer2-Background-Pool: Thread-1549] mapreduce.Job: Job job_1533623337748_0215 running in uber mode : false
2018-08-07T16:36:06,571 INFO [HiveServer2-Background-Pool: Thread-1549] mapreduce.Job: map 0% reduce 0%
2018-08-07T16:36:09,004 INFO [HiveServer2-Handler-Pool: Thread-53] session.SessionState: Updating thread name to 0887b266-675a-4fb2-8c85-3a27ebb3b9fc HiveSe
rver2-Handler-Pool: Thread-53
2018-08-07T16:36:09,004 INFO [HiveServer2-Handler-Pool: Thread-53] session.SessionState: Resetting thread name to HiveServer2-Handler-Pool: Thread-53
2018-08-07T16:36:14,006 INFO [HiveServer2-Handler-Pool: Thread-53] session.SessionState: Updating thread name to 0887b266-675a-4fb2-8c85-3a27ebb3b9fc HiveSe
rver2-Handler-Pool: Thread-53
2018-08-07T16:36:14,006 INFO [HiveServer2-Handler-Pool: Thread-53] session.SessionState: Resetting thread name to HiveServer2-Handler-Pool: Thread-53
2018-08-07T16:36:18,603 INFO [HiveServer2-Background-Pool: Thread-1549] mapreduce.Job: map 100% reduce 0%
2018-08-07T16:36:19,007 INFO [HiveServer2-Handler-Pool: Thread-53] session.SessionState: Updating thread name to 0887b266-675a-4fb2-8c85-3a27ebb3b9fc HiveSe
rver2-Handler-Pool: Thread-53
2018-08-07T16:36:19,007 INFO [HiveServer2-Handler-Pool: Thread-53] session.SessionState: Resetting thread name to HiveServer2-Handler-Pool: Thread-53
2018-08-07T16:36:24,009 INFO [HiveServer2-Handler-Pool: Thread-53] session.SessionState: Updating thread name to 0887b266-675a-4fb2-8c85-3a27ebb3b9fc HiveSe
rver2-Handler-Pool: Thread-53
2018-08-07T16:36:24,009 INFO [HiveServer2-Handler-Pool: Thread-53] session.SessionState: Resetting thread name to HiveServer2-Handler-Pool: Thread-53
2018-08-07T16:36:29,010 INFO [HiveServer2-Handler-Pool: Thread-53] session.SessionState: Updating thread name to 0887b266-675a-4fb2-8c85-3a27ebb3b9fc HiveSe
rver2-Handler-Pool: Thread-53
2018-08-07T16:36:29,010 INFO [HiveServer2-Handler-Pool: Thread-53] session.SessionState: Resetting thread name to HiveServer2-Handler-Pool: Thread-53
2018-08-07T16:36:34,012 INFO [HiveServer2-Handler-Pool: Thread-53] session.SessionState: Updating thread name to 0887b266-675a-4fb2-8c85-3a27ebb3b9fc HiveSe
rver2-Handler-Pool: Thread-53
2018-08-07T16:36:34,012 INFO [HiveServer2-Handler-Pool: Thread-53] session.SessionState: Resetting thread name to HiveServer2-Handler-Pool: Thread-53
2018-08-07T16:36:37,641 INFO [HiveServer2-Background-Pool: Thread-1549] mapreduce.Job: Job job_1533623337748_0215 completed successfully
2018-08-07T16:36:37,664 INFO [HiveServer2-Background-Pool: Thread-1549] mapreduce.Job: Counters: 33
File System Counters
FILE: Number of bytes read=0
FILE: Number of bytes written=297867
FILE: Number of read operations=0
FILE: Number of large read operations=0
FILE: Number of write operations=0
HDFS: Number of bytes read=129369232
HDFS: Number of bytes written=129368810
HDFS: Number of read operations=16
HDFS: Number of large read operations=0
HDFS: Number of write operations=4
Job Counters
Launched map tasks=1
Other local map tasks=1
Total time spent by all maps in occupied slots (ms)=85701
Total time spent by all reduces in occupied slots (ms)=0
Total time spent by all map tasks (ms)=28567
Total vcore-milliseconds taken by all map tasks=28567
Total megabyte-milliseconds taken by all map tasks=571340000
Map-Reduce Framework
Map input records=1
Map output records=0
Input split bytes=134
Spilled Records=0
Failed Shuffles=0
Merged Map outputs=0
GC time elapsed (ms)=84
CPU time spent (ms)=31920
Physical memory (bytes) snapshot=542441472
Virtual memory (bytes) snapshot=19353210880
Total committed heap usage (bytes)=826277888
File Input Format Counters
Bytes Read=288
File Output Format Counters
Bytes Written=0
org.apache.hadoop.tools.mapred.CopyMapper$Counter
BYTESCOPIED=129368810
BYTESEXPECTED=129368810
COPY=1
2018-08-07T16:36:37,706 INFO [HiveServer2-Background-Pool: Thread-1549] metadata.Hive: Copying source hdfs://edhcluster/tmp/hive/staging_hive_2018-08-07_16-
29-12_750_8973639287951385407-1/-ext-10000/000001_0 to hdfs://edhcluster/user/hive/warehouse/temp_tro/000001_0 because HDFS encryption zones are different.
2018-08-07T16:36:37,706 INFO [HiveServer2-Background-Pool: Thread-1549] common.FileUtils: Source is 129368980 bytes. (MAX: 33554432)
2018-08-07T16:36:37,706 INFO [HiveServer2-Background-Pool: Thread-1549] common.FileUtils: Launch distributed copy (distcp) job.
2018-08-07T16:36:37,783 INFO [HiveServer2-Background-Pool: Thread-1549] tools.DistCp: Input Options: DistCpOptions{atomicCommit=false, syncFolder=true, dele
teMissing=false, ignoreFailures=false, maxMaps=20, sslConfigurationFile='null', copyStrategy='uniformsize', sourceFileListing=null, sourcePaths=[hdfs://edhcl
uster/tmp/hive/staging_hive_2018-08-07_16-29-12_750_8973639287951385407-1/-ext-10000/000001_0], targetPath=hdfs://edhcluster/user/hive/warehouse/temp_tro/000
001_0, targetPathExists=false, preserveRawXattrs=false}
`
:
:
最佳答案
更新:
发现.hiverc用于HIVE CLI的配置单元用户,因此发现了差异。
hive.exec.scratchdir=/user/hive/scratch
hive.exec.stagingdir=/user/hive/staging
hive.exec.scratchdir=/user/hive/scratch
hive.exec.stagingdir=/user/hive/staging
hive.exec.scratchdir=/tmp/hive/scratch
hive.exec.stagingdir=/tmp/hive/staging
metadata.Hive: Copying source hdfs://edhcluster/tmp/hive/staging_hive_2018-08-07_16- 29-12_750_8973639287951385407-1/-ext-10000/000001_0 to hdfs://edhcluster/user/hive/warehouse/temp_tro/000001_0 because HDFS encryption zones are different.
关于hadoop - Hive CLI和Beeline jdbc:hive2在执行引擎tez中对插入百万条记录的行为有所不同吗?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/51738519/
我一直在使用 Databricks JDBC 驱动程序版本 2.6.22,并尝试升级到 2.6.27。但是,升级后我收到消息说我的 JDBC URL 在尝试连接时无效。这些 JDBC URL 与旧版本
似乎JDBC Spec没有详细说明数据源连接池中alive or idle connections的准确含义。它只是具体实现吗? DBCP2如何或 HikariCP实际检查连接状态? 下面没有事件事务
在“XPages 扩展库”一书中,第 12 章,第 409 页有一个 JDBC 连接文件的例子: org.apache.derby.jdbc.EmbeddedDriver jdbc:
谁能告诉我 jdbc 是如何工作的?它如何设法与 DBMS 通信?因为 DBMS 可能是用其他编程语言编写的。 最佳答案 与数据库的通信由 JDBC 驱动程序处理,这些驱动程序可以使用各种策略与数据库
我想知道是否有人可以帮助我解决这个问题。我在尝试使用 Spring JDBC 编写代码时遇到了一个问题。当我运行服务器时,我收到了标题中提到的消息。我google了一下,有人说你应该导入ojdbc.j
我只是想运行一个示例 hivejdbc 客户端程序,但它给我一个内存不足的错误。 import java.sql.SQLException; import java.sql.Connection; i
我需要将 Google Spreadsheet 与 JasperReports Server 一起使用,为此我需要一个用于 Google Spreadsheet 的 JDBC 连接器。 我找到了这个
我需要将大量行(最多 100,000 行)插入到 6 个不同的 DB2 表中。我正在使用 Java JDBC 来完成它。我想在单个数据库事务中完成所有操作,以便在遇到任何问题时可以回滚整个操作。在某处
再次为自己是 Jmeter 新手道歉——我对 JDBC 请求有点困惑——我在过去的 3 个小时里浏览了这个网站上的帖子——但我找不到任何相关的东西(除非我我错过了一些东西)。 我的环境:Jmeter
我们正在创建一个带有 MySQL 后端的 XPages 应用程序。应用程序将被多个客户使用。每个都有自己的 NSF 数据库和相应的 MySQL 数据库。每个客户都有自己的 MySQL 用户名。我们正在
昨天我遇到了一个大问题。在我当前的项目中,我使用 Oracle 的 JDBC 的 ojdbc6 实现进行连接,但我还需要处理例如 oracle 8 数据库,这对于这个 JAR 是完全不可能的。 你会说
这个问题在这里已经有了答案: Closing JDBC Connections in Pool (3 个答案) 关闭 2 年前。 假设我有以下代码 DataSource source = (Data
我有 Informix 数据库,时间戳字段定义为 YEAR TO SECOND。 当我使用 JDBC rs.getString(column) 显示此字段时,它使用带毫秒的格式,因此此字段如下所示:
看完本教程之后; https://www.youtube.com/watch?v=ZnI_rlrei1s 我正在尝试使用logstash和jdbc获取我的本地主机mysql(使用laravel val
有人给我小费。 { "type": "jdbc", "jdbc": { "driver": "com.microsoft.sqlserver.jdbc.SQLServerDriver"
已结束。此问题正在寻求书籍、工具、软件库等的推荐。它不满足Stack Overflow guidelines 。目前不接受答案。 我们不允许提出寻求书籍、工具、软件库等推荐的问题。您可以编辑问题,以便
我正在尝试从mysql表中将1600万个文档(47gb)索引为elasticsearch索引。我正在使用jparante's elasticsearch jdbc river执行此操作。但是,在创建河
我正在尝试使用JDBC河将我的MySQL数据库复制到我的ElasticSearch索引中。 但是,每当我启动服务器时,与MySQL表的count(*)相比,创建的文档数量就增加了一倍。我通过清空索引并
使用新的logstash jdbc 连接器: https://www.elastic.co/guide/en/logstash/current/plugins-inputs-jdbc.html后续的
已结束。此问题正在寻求书籍、工具、软件库等的推荐。它不满足Stack Overflow guidelines 。目前不接受答案。 我们不允许提出寻求书籍、工具、软件库等推荐的问题。您可以编辑问题,以便
我是一名优秀的程序员,十分优秀!