EmmyMiao87 commented on a change in pull request #1154: Add logic of cancel job
URL: https://github.com/apache/incubator-doris/pull/1154#discussion_r283656604
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File path: fe/src/main/java/org/apache/doris/load/loadv2/LoadManager.java
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@@ -113,10 +114,11 @@ public void cancelLoadJob(CancelLoadStmt stmt) throws
DdlException {
if (!dbIdToLabelToLoadJobs.containsKey(db.getId())) {
throw new DdlException("Load job does not exist");
}
- if
(!dbIdToLabelToLoadJobs.get(db.getId()).containsKey(stmt.getLabel())) {
+ Map<String, List<LoadJob>> labelToLoadJobs =
dbIdToLabelToLoadJobs.get(db.getId());
+ if (!labelToLoadJobs.containsKey(stmt.getLabel())) {
throw new DdlException("Load job does not exist");
}
- List<LoadJob> loadJobList =
dbIdToLabelToLoadJobs.get(db.getId()).get(stmt.getLabel());
+ List<LoadJob> loadJobList = labelToLoadJobs.get(stmt.getLabel());
Review comment:
I do not get it twice. The containsKey does not get the value, it just hash
the key. Also, I add the read lock whether get and check null or containsKey
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