dataroaring commented on code in PR #39987:
URL: https://github.com/apache/doris/pull/39987#discussion_r1732536703
##########
fe/fe-core/src/main/java/org/apache/doris/backup/BackupJob.java:
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@@ -523,6 +523,16 @@ private void prepareAndSendSnapshotTask() {
}
}
+ // Limit the max num of tablets involved in a backup job, to avoid OOM.
+ if (unfinishedTaskIds.size() > Config.max_backup_tablets_per_job) {
+ String msg = String.format("the num involved tablets %d exceeds
the limit %d"
+ + "change config `max_backup_tablets_per_job` to change
this limitation",
+ unfinishedTaskIds.size(),
Config.max_backup_tablets_per_job);
Review Comment:
Please provide users a fe oom hint.
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