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Posted to issues@spark.apache.org by "Zikun (Jira)" <ji...@apache.org> on 2021/08/12 11:55:00 UTC
[jira] [Updated] (SPARK-36493) SparkFiles.get is not needed for the
JDBC keytab provided by the "--files" option
[ https://issues.apache.org/jira/browse/SPARK-36493?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Zikun updated SPARK-36493:
--------------------------
Description:
Currently we have the logic to deal with the JDBC keytab provided by the "--files" option
if (keytabParam != null && FilenameUtils.getPath(keytabParam).isEmpty)
{ val result = SparkFiles.get(keytabParam) logDebug(s"Keytab path not found, assuming --files, file name used on executor: $result") result }
else {
Spark has already created the soft link for any file submitted by the "--files" option. Here is an example.
testusera1.keytab -> /var/opt/hadoop/temp/nm-local-dir/usercache/testusera1/appcache/application_1628584679772_0003/filecache/12/testusera1.keytab
So there is no need to call the SparkFiles.get to absolute path of the keytab file. We can directly use the variable `keytabParam` as the keytab file path.
Moreover, SparkFiles.get will get a different path of keytab
was:
Currently we have the logic to deal with the JDBC keytab provided by the "--files" option
if (keytabParam != null && FilenameUtils.getPath(keytabParam).isEmpty) {
val result = SparkFiles.get(keytabParam)
logDebug(s"Keytab path not found, assuming --files, file name used on executor: $result")
result
} else {
Spark has already created the soft link for any file submitted by the "--files" option. So there is no need to call the SparkFiles.get to absolute path of the keytab file. We can directly use the variable `keytabParam` as the keytab file path.
> SparkFiles.get is not needed for the JDBC keytab provided by the "--files" option
> ---------------------------------------------------------------------------------
>
> Key: SPARK-36493
> URL: https://issues.apache.org/jira/browse/SPARK-36493
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 3.1.0, 3.1.2
> Reporter: Zikun
> Priority: Major
> Fix For: 3.1.3
>
>
> Currently we have the logic to deal with the JDBC keytab provided by the "--files" option
> if (keytabParam != null && FilenameUtils.getPath(keytabParam).isEmpty)
> { val result = SparkFiles.get(keytabParam) logDebug(s"Keytab path not found, assuming --files, file name used on executor: $result") result }
> else {
> Spark has already created the soft link for any file submitted by the "--files" option. Here is an example.
> testusera1.keytab -> /var/opt/hadoop/temp/nm-local-dir/usercache/testusera1/appcache/application_1628584679772_0003/filecache/12/testusera1.keytab
>
> So there is no need to call the SparkFiles.get to absolute path of the keytab file. We can directly use the variable `keytabParam` as the keytab file path.
>
> Moreover, SparkFiles.get will get a different path of keytab
>
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