gavinchou commented on code in PR #56061:
URL: https://github.com/apache/doris/pull/56061#discussion_r2348253775
##########
cloud/src/meta-service/meta_service.cpp:
##########
@@ -731,6 +731,27 @@ void internal_create_tablet(const CreateTabletsRequest*
request, MetaServiceCode
std::string key;
std::string val;
meta_tablet_key(key_info, &key);
+
+ if (txn->get(key, &val) == TxnErrorCode::TXN_OK) {
+ doris::TabletMetaCloudPB exists_tablet_meta;
+ if (!exists_tablet_meta.ParseFromString(val)) {
+ code = MetaServiceCode::PROTOBUF_SERIALIZE_ERR;
+ msg = fmt::format("failed to serialize tablet meta, key={}",
hex(key));
+ return;
+ }
+ if (exists_tablet_meta.tablet_id() == tablet_meta.tablet_id() &&
+ exists_tablet_meta.schema_version() ==
tablet_meta.schema_version()) {
+ // idempotent
+ code = MetaServiceCode::OK;
+ msg = "tablet already exists";
Review Comment:
contain some key info, tablet id. index id partition id
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