Eyal Golan eyalgo
eyalgo
/ blog-applift-upgrading-spark-sql-exception
Created
March 11, 2016 10:55
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| java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost/example_db | |
| at java.sql.DriverManager.getConnection(DriverManager.java:689) | |
| at java.sql.DriverManager.getConnection(DriverManager.java:247) | |
| at org.apache.commons.dbcp.DriverManagerConnectionFactory.createConnection(DriverManagerConnectionFactory.java:75) | |
| at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:582) | |
| at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:1148) | |
| at org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:106) | |
| at scalikejdbc.CommonsConnectionPool.borrow(CommonsConnectionPool.scala:43) | |
| at scalikejdbc.NamedDB.db$lzycompute(NamedDB.scala:33) | |
| at scalikejdbc.NamedDB.db(NamedDB.scala:31) |
eyalgo
/ blog-applift-upgrading-spark-drivers.scala
Created
March 11, 2016 10:54
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| val drivers = java.sql.DriverManager.getDrivers | |
| while (drivers.hasMoreElements) { | |
| val driverClass = drivers.nextElement().getClass | |
| println(s"${driverClass.getName} loaded with ${driverClass.getClassLoader}") | |
| } |
eyalgo
/ blog-applift-upgrading-spark-cldump.scala
Created
March 11, 2016 10:54
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| def CLdump(cl: ClassLoader = Thread.currentThread().getContextClassLoader) = { | |
| val f = classOf[ClassLoader].getDeclaredField("classes") | |
| f.setAccessible(true) | |
| dump(cl) | |
| def dump(cl: ClassLoader): Unit = { | |
| if (cl == null) return | |
| val classes = f.get(cl).asInstanceOf[java.util.Vector[java.lang.Class[_]]] | |
| println(cl) | |
| println(classes.toArray.map(cl => "\t" + cl.toString).mkString("\n")) | |
| dump(cl.getParent) |
eyalgo
/ blog-applift-upgrading-spark-cldump-output
Last active
March 11, 2016 10:58
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| sun.misc.Launcher$AppClassLoader@55f96302 | |
| interface org.apache.hadoop.fs.Seekable | |
| interface org.apache.hadoop.fs.PositionedReadable | |
| interface org.apache.hadoop.fs.ByteBufferReadable | |
| interface org.apache.hadoop.fs.HasFileDescriptor | |
| ... |
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| #!/usr/bin/env bash | |
| boot2docker stop | |
| boot2docker delete | |
| boot2docker init | |
| boot2docker start |
eyalgo
/ git-push-examples.sh
Created
July 8, 2015 09:59
Pushing to pull request branch git commands
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| # Update the branches | |
| git fetch | |
| # Rebase from master to the branch to be update | |
| git rebase -i origin/master | |
| # Show commits tree in gitk | |
| gitk --all | |
| # Push to the upstream branch |
eyalgo
/ mongodb-id-with-regex
Created
April 15, 2015 14:00
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| {"_id":{$regex : "AbTestAndGroupId_IMAGE_SOURCE_ANDROID_ALL*"}} |
eyalgo
/ upload-to-s3.sh
Created
April 14, 2015 07:17
A small shell script that shows how to upload file to S3. Usage can be for ELB
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| #!/bin/sh | |
| if [ -z "$1" ]; then echo "Please add build number"; exit; fi | |
| rm confirmedBuild | |
| touch confirmedBuild | |
| echo $1 > confirmedBuild | |
| # /usr/bin/s3cmd is where the s3 command tool locates | |
| /usr/bin/s3cmd put confirmedBuild s3://<bucket name>/ |
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| # save under /etc/profile.d/git-env.sh | |
| export PATH=$PATH:/opt/git/bin |
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| su - | |
| yum install curl-devel expat-devel gettext-devel openssl-devel zlib-devel | |
| yum install gcc perl-ExtUtils-MakeMaker | |
| yum remove git | |
| # Download source | |
| # check latest version in http://git-scm.com/downloads | |
| cd /usr/src |