alesapin

<link href="../cool-clock/cool-clock.html" rel="import">
<link href="../ace-element/ace-element.html" rel="import">
<link href="../smoothie-chart/smoothie-chart.html" rel="import">

<polymer-element name="my-element">

  <template>
    <style>    
      #design_host {
        position: absolute;

alesapin

<link href="../core-drawer-panel/core-drawer-panel.html" rel="import">
<link href="../cool-clock/cool-clock.html" rel="import">

<polymer-element name="my-element">

  <template>
    <style>    
      #design_host {
        position: absolute;
        width: 100%;

alesapin

<link href="../chart-js/chart-js.html" rel="import">

<polymer-element name="my-element">

  <template>
    <style>    
      #design_host {
        position: absolute;
        width: 100%;
        height: 100%;

alesapin

#include <Storages/MergeTree/MergeTreeBlockInputStream.h>
#include <Storages/MergeTree/MergeTreeBaseBlockInputStream.h>
#include <Storages/MergeTree/MergeTreeReader.h>
#include <Core/Defines.h>


namespace DB
{

namespace ErrorCodes

alesapin

    /** @note you could simply swap `reverse` in if and else branches of MergeTreeDataSelectExecutor,
     * and remove this reverse. */
    MarkRanges remaining_mark_ranges = all_mark_ranges;
    std::reverse(remaining_mark_ranges.begin(), remaining_mark_ranges.end());

    auto size_predictor = (preferred_block_size_bytes == 0)
        ? nullptr
        : std::make_unique<MergeTreeBlockSizePredictor>(data_part, ordered_names, data_part->storage.getSampleBlock());

    task = std::make_unique<MergeTreeReadTask>(

alesapin

#include "DictionarySourceFactory.h"

#include <Columns/ColumnsNumber.h>
#include <Core/Block.h>
#include <Core/ColumnWithTypeAndName.h>
#include <DataTypes/DataTypeNullable.h>
#include <DataTypes/DataTypesNumber.h>
#include <Poco/Logger.h>
#include <common/logger_useful.h>
#include "DictionaryStructure.h"

alesapin

-- cache layout dictionary from ClickHouse
CREATE DICTIONARY cache_dict (
    field1 String DEFAULT 'nothing',
    field2 UInt8 HIERARCHICAL true EXPRESSION 'rand() % 100',
    KEY key1 UInt64
)
SOURCE=ClickHouse(host='example01-01-1', port=9000, user='default', db='default', table='sometable'),
LAYOUT=Cache(size_in_cells=10000000),
LIFETIME=Lifetime(10, 100);

alesapin

     

2020.04.01 07:22:44.550808 [ 387 ] {} <Trace> test_o0wjsc.distributed_01099_b.DirectoryMonitor: Started processing `/var/lib/clickhouse/data/test_o0wjsc/distributed_01099_b/default@127%2E0%2E0%2E2:9000/1.bin`
2020.04.01 07:22:44.551884 [ 210 ] {} <Trace> BaseDaemon: Received signal 11
2020.04.01 07:22:44.552139 [ 2564 ] {} <Fatal> BaseDaemon: ########################################
2020.04.01 07:22:44.552188 [ 2564 ] {} <Fatal> BaseDaemon: (version 20.4.1.2858 (official build)) (from thread 387) (no query) Received signal Segmentation fault (11).
2020.04.01 07:22:44.552227 [ 2564 ] {} <Fatal> BaseDaemon: Address: 0x20 Access: read. Address not mapped to object.
2020.04.01 07:22:44.552245 [ 2564 ] {} <Fatal> BaseDaemon: Stack trace: 0xbcba6ec 0xbcbc9f4 0x7aa520a 0xbab5f10 0xbab8969 0xbab8ee0 0xbabc667 0x79f097d 0xc50e8d4 0x7ff22d9b8669 0x7ff22dc50323
2020.04.01 07:22:44.553158 [ 2564 ] {} <Fatal> BaseDaemon: 3. /build/obj-x86_64-linux-gnu/../dbms/src/IO/ReadBuffer.h:59: DB::Connection::ping() @ 0xbcba6

alesapin

0.04.01 06:50:44.747029 [ 193 ] {} <Trace> BaseDaemon: Received signal 11
2020.04.01 06:50:44.747902 [ 629 ] {} <Fatal> BaseDaemon: ########################################
2020.04.01 06:50:44.748236 [ 629 ] {} <Fatal> BaseDaemon: (version 20.4.1.2857 (official build)) (from thread 253) (query_id: 9d62dcac-9f10-45a3-a9a0-7223b4980cf6) Received signal Segmentation fault (11).
2020.04.01 06:50:44.748524 [ 629 ] {} <Fatal> BaseDaemon: Address: NULL pointer. Access: read. Unknown si_code.
2020.04.01 06:50:44.748671 [ 629 ] {} <Fatal> BaseDaemon: Stack trace: 0x155bce83 0x155bce25 0x248653e8 0x24864d82 0x24864451 0x156d6503 0x1551d4b2 0x15546853 0x15546400 0x1f96032f 0x1f99161d 0x1f9912ec 0x1e01576f 0x1dfee00f 0x1e3fae0e 0x1dfee00f 0x1e03b4e9 0x1e037c92 0x1e03af45 0x1e03ae12 0x1e03ad88 0x1e03ac4e 0x1e03abb3 0x1e03ab33 0x1e03aaf3 0x1e039485 0x1553f552 0x1553d3eb
2020.04.01 06:50:44.750472 [ 629 ] {} <Fatal> BaseDaemon: 4. /build/obj-x86_64-linux-gnu/../contrib/poco/Foundation/include/Poco/AtomicCounter.h:302: Poco:

alesapin

 ./clickhouse-client  --query "SELECT * from system.numbers ORDER BY number" -- --max_memory_usage=1
Received exception from server (version 20.4.1):
Code: 241. DB::Exception: Received from localhost:9000. DB::Exception: Memory limit (for query) exceeded: would use 4.01 MiB (attempt to allocate chunk of 4203136 bytes), maximum: 1.00 B. 

 ./clickhouse-client  --query "SELECT * from system.numbers ORDER BY number SETTINGS max_memory_usage=1"