Github user arina-ielchiieva commented on a diff in the pull request:
https://github.com/apache/drill/pull/574#discussion_r82597440
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/FunctionImplementationRegistry.java
---
@@ -378,38 +399,33 @@ private Path getLocalUdfDir() {
}
/**
- * First tries to get drill conf directory value from system properties,
+ * First tries to get drill temporary directory value from system
properties,
* if value is missing, checks environment properties.
* Throws exception is value is null.
- * @return drill conf dir path
+ * @return drill temporary directory path
*/
- private String getConfDir() {
- String drillConfDir = "DRILL_CONF_DIR";
- String value = System.getProperty(drillConfDir);
+ private String getTmpDir() {
--- End diff --
Done.
Added config ${drill.tmp-dir} which is not set by default.
So we first check if environmental variable $DRILL_TMP_DIR is set, if not
we check if ${drill.tmp-dir} is set.
If none of them is set we use Files.createTempDir( ) to generate temporary
directory.
Generated directory will be deleted on drillbit exit. Directories indicated
by $DRILL_TMP_DIR or ${drill.tmp-dir} will be only cleaned up
($DRILL_TMP_DIR/udf or ${drill.tmp-dir}/udf).
Unfortunately I can set
drill.tmp-dir: "/tmp",
drill.tmp-dir: "${?DRILL_TMP_DIR}"
right away since typesafe config doesn't allow to unset value and thus user
will never be able to have generated temporary directory.
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