imay closed pull request #320: Fix SHOW BACKENDS return ERROR
URL: https://github.com/apache/incubator-doris/pull/320
This is a PR merged from a forked repository.
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diff --git a/fe/src/main/java/org/apache/doris/system/Backend.java
b/fe/src/main/java/org/apache/doris/system/Backend.java
index a05121cf..46b96dee 100644
--- a/fe/src/main/java/org/apache/doris/system/Backend.java
+++ b/fe/src/main/java/org/apache/doris/system/Backend.java
@@ -212,7 +212,11 @@ public void setBad(EventBus eventBus, String errMsg) {
}
eventBus.post(new BackendEvent(BackendEventType.BACKEND_DOWN, "missing
heartbeat", Long.valueOf(id)));
- heartbeatErrMsg = errMsg;
+ // In some case, errMsg is null when catched Exception have no
message, which can make
+ // `SHOW BACKENDS` return ERROR. We check errMsg here to avoid.
+ if (errMsg != null) {
+ heartbeatErrMsg = errMsg;
+ }
}
public void setBackendState(BackendState state) {
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