[doris] 07/08: [minor](log) print error msg to fe.out before log is initialized (#22106)

[kxiao]

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kxiao pushed a commit to branch branch-2.0
in repository https://gitbox.apache.org/repos/asf/doris.git

commit 554dfe5b0086a6ceddc5bbdfa35d7530af0a14a5
Author: Mingyu Chen <morning...@163.com>
AuthorDate: Sun Jul 23 19:20:10 2023 +0800

    [minor](log) print error msg to fe.out before log is initialized (#22106)
    
    The exception may be thrown before LOG is initialized.
    Such as wrong config value. So we need to print it to fe.out, otherwise
    we can't know what's wrong.
    
    After this PR, the error can be found in fe.out, such as:
    
    ```
    java.lang.NumberFormatException: For input string: "3g"
            at 
java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
            at java.lang.Long.parseLong(Long.java:589)
            at java.lang.Long.parseLong(Long.java:631)
            at 
org.apache.doris.common.ConfigBase.setConfigField(ConfigBase.java:253)
            at org.apache.doris.common.ConfigBase.setFields(ConfigBase.java:232)
            at org.apache.doris.common.ConfigBase.initConf(ConfigBase.java:146)
            at org.apache.doris.common.ConfigBase.init(ConfigBase.java:112)
            at org.apache.doris.DorisFE.start(DorisFE.java:101)
            at org.apache.doris.DorisFE.main(DorisFE.java:73)
    ```
---
 fe/fe-core/src/main/java/org/apache/doris/DorisFE.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fe/fe-core/src/main/java/org/apache/doris/DorisFE.java 
b/fe/fe-core/src/main/java/org/apache/doris/DorisFE.java
index 7d87091120..07394d9cd4 100755
--- a/fe/fe-core/src/main/java/org/apache/doris/DorisFE.java
+++ b/fe/fe-core/src/main/java/org/apache/doris/DorisFE.java
@@ -187,6 +187,9 @@ public class DorisFE {
                 Thread.sleep(2000);
             }
         } catch (Throwable e) {
+            // Some exception may thrown before LOG is inited.
+            // So need to print to stdout
+            e.printStackTrace();
             LOG.warn("", e);
         }
     }


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