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,
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// specific language governing permissions and limitations
// under the License.

#include "olap/base_tablet.h"

#include <fmt/format.h>

#include "olap/tablet_fwd.h"
#include "olap/tablet_schema_cache.h"
#include "util/doris_metrics.h"
#include "vec/common/schema_util.h"

namespace doris {
using namespace ErrorCode;

extern MetricPrototype METRIC_query_scan_bytes;
extern MetricPrototype METRIC_query_scan_rows;
extern MetricPrototype METRIC_query_scan_count;
DEFINE_COUNTER_METRIC_PROTOTYPE_2ARG(flush_bytes, MetricUnit::BYTES);
DEFINE_COUNTER_METRIC_PROTOTYPE_2ARG(flush_finish_count, MetricUnit::OPERATIONS);

static bvar::Adder<size_t> g_total_tablet_num("doris_total_tablet_num");

BaseTablet::BaseTablet(TabletMetaSharedPtr tablet_meta) : _tablet_meta(std::move(tablet_meta)) {
    _metric_entity = DorisMetrics::instance()->metric_registry()->register_entity(
            fmt::format("Tablet.{}", 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);
    INT_COUNTER_METRIC_REGISTER(_metric_entity, flush_bytes);
    INT_COUNTER_METRIC_REGISTER(_metric_entity, flush_finish_count);
    g_total_tablet_num << 1;
}

BaseTablet::~BaseTablet() {
    DorisMetrics::instance()->metric_registry()->deregister_entity(_metric_entity);
    g_total_tablet_num << -1;
}

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);
    return Status::OK();
}

void BaseTablet::update_max_version_schema(const TabletSchemaSPtr& tablet_schema) {
    std::lock_guard wrlock(_meta_lock);
    // Double Check for concurrent update
    if (!_max_version_schema ||
        tablet_schema->schema_version() > _max_version_schema->schema_version()) {
        _max_version_schema = tablet_schema;
    }
}

Status BaseTablet::update_by_least_common_schema(const TabletSchemaSPtr& update_schema) {
    std::lock_guard wrlock(_meta_lock);
    CHECK(_max_version_schema->schema_version() >= update_schema->schema_version());
    TabletSchemaSPtr final_schema;
    bool check_column_size = true;
    RETURN_IF_ERROR(vectorized::schema_util::get_least_common_schema(
            {_max_version_schema, update_schema}, _max_version_schema, final_schema,
            check_column_size));
    _max_version_schema = final_schema;
    VLOG_DEBUG << "dump updated tablet schema: " << final_schema->dump_full_schema();
    return Status::OK();
}

} /* namespace doris */