be/src/olap/base_tablet.cpp

// Licensed to the Apache Software Foundation (ASF) under one
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// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
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// specific language governing permissions and limitations
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#include "olap/base_tablet.h"

#include <fmt/format.h>
#include <glog/logging.h>

#include <vector>

#include "gutil/strings/substitute.h"
#include "olap/data_dir.h"
#include "olap/olap_define.h"
#include "olap/rowset/rowset_meta.h"
#include "olap/tablet_schema_cache.h"
#include "util/doris_metrics.h"

namespace doris {
using namespace ErrorCode;

extern MetricPrototype METRIC_query_scan_bytes;
extern MetricPrototype METRIC_query_scan_rows;
extern MetricPrototype METRIC_query_scan_count;

BaseTablet::BaseTablet(TabletMetaSharedPtr tablet_meta, DataDir* data_dir)
        : _state(tablet_meta->tablet_state()), _tablet_meta(tablet_meta), _data_dir(data_dir) {
    _schema = TabletSchemaCache::instance()->insert(_tablet_meta->tablet_schema()->to_key());
    _gen_tablet_path();

    _full_name = fmt::format("{}.{}.{}", _tablet_meta->tablet_id(), _tablet_meta->schema_hash(),
                             _tablet_meta->tablet_uid().to_string());

    _metric_entity = DorisMetrics::instance()->metric_registry()->register_entity(
            strings::Substitute("Tablet.$0", tablet_id()),
            {{"tablet_id", std::to_string(tablet_id())}}, MetricEntityType::kTablet);
    INT_COUNTER_METRIC_REGISTER(_metric_entity, query_scan_bytes);
    INT_COUNTER_METRIC_REGISTER(_metric_entity, query_scan_rows);
    INT_COUNTER_METRIC_REGISTER(_metric_entity, query_scan_count);
}

BaseTablet::~BaseTablet() {
    DorisMetrics::instance()->metric_registry()->deregister_entity(_metric_entity);
}

Status BaseTablet::set_tablet_state(TabletState state) {
    if (_tablet_meta->tablet_state() == TABLET_SHUTDOWN && state != TABLET_SHUTDOWN) {
        return Status::Error<META_INVALID_ARGUMENT>(
                "could not change tablet state from shutdown to {}", state);
    }
    _tablet_meta->set_tablet_state(state);
    _state = state;
    return Status::OK();
}

void BaseTablet::_gen_tablet_path() {
    if (_data_dir != nullptr && _tablet_meta != nullptr) {
        _tablet_path = fmt::format("{}/{}/{}/{}/{}", _data_dir->path(), DATA_PREFIX, shard_id(),
                                   tablet_id(), schema_hash());
    }
}

bool BaseTablet::set_tablet_schema_into_rowset_meta() {
    bool flag = false;
    for (RowsetMetaSharedPtr rowset_meta : _tablet_meta->all_mutable_rs_metas()) {
        if (!rowset_meta->tablet_schema()) {
            rowset_meta->set_tablet_schema(_schema);
            flag = true;
        }
    }
    return flag;
}

} /* namespace doris */