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Fix SHOW BACKENDS return ERROR #320

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Merged
imay merged 1 commit into from
Nov 15, 2018
Merged

Fix SHOW BACKENDS return ERROR #320

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6 changes: 5 additions & 1 deletion fe/src/main/java/org/apache/doris/system/Backend.java
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Original file line number Diff line number Diff line change
Expand Up @@ -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) {
Expand Down