编辑

• SHOW TABLE STATUS

SHOW TABLE STATUS 是一个SQL语句，用于显示每个表的各种统计信息。

语法如下：

SHOW TABLE index_name STATUS

根据索引类型，显示的统计信息包含不同的行集：

  • 模板表: index_type

  • 分布式表: index_type，query_time_1min，query_time_5min，query_time_15min，query_time_total，exact_query_time_1min，exact_query_time_5min，exact_query_time_15min，exact_query_time_total，found_rows_1min，found_rows_5min，found_rows_15min，found_rows_total

  • 过滤表: index_type，stored_queries，ram_bytes，disk_bytes，max_stack_need，average_stack_base，desired_thread_stack，tid，tid_saved，query_time_1min，query_time_5min，query_time_15min，query_time_total，exact_query_time_1min，exact_query_time_5min，exact_query_time_15min，exact_query_time_total，found_rows_1min，found_rows_5min，found_rows_15min，found_rows_total

  • 普通表: index_type，indexed_documents，indexed_bytes，可能包含field_tokens_* 和 total_tokens 的集合，ram_bytes，disk_bytes，disk_mapped，disk_mapped_cached，disk_mapped_doclists，disk_mapped_cached_doclists，disk_mapped_hitlists，disk_mapped_cached_hitlists，killed_documents，killed_rate，query_time_1min，query_time_5min，query_time_15min，query_time_total，exact_query_time_1min，exact_query_time_5min，exact_query_time_15min，exact_query_time_total，found_rows_1min，found_rows_5min，found_rows_15min，found_rows_total

  • 实时表: index_type，indexed_documents，indexed_bytes，可能包含field_tokens_* 和 total_tokens 的集合，ram_bytes，disk_bytes，disk_mapped，disk_mapped_cached，disk_mapped_doclists，disk_mapped_cached_doclists，disk_mapped_hitlists，disk_mapped_cached_hitlists，killed_documents，killed_rate，ram_chunk，ram_chunk_segments_count，disk_chunks，mem_limit，mem_limit_rate，ram_bytes_retired，optimizing，locked，tid，tid_saved，query_time_1min，query_time_5min，query_time_15min，query_time_total，exact_query_time_1min，exact_query_time_5min，exact_query_time_15min，exact_query_time_total，found_rows_1min，found_rows_5min，found_rows_15min，found_rows_total

这些值的含义如下：

  • index_type: 当前索引类型之一，如 disk，rt，percolate，template 和 distributed

  • indexed_documents: 已索引的文档数量

  • indexed_bytes: 已索引文本的总大小

  • stored_queries: 表中存储的过滤查询数量

  • field_tokens_XXX: 可选，每个字段的总词元数量，用于BM25A 和 BM25F 排名函数

  • total_tokens: 可选，所有field_tokens_XXX的总和

  • ram_bytes: 表占用的总内存

  • disk_bytes: 表占用的总磁盘空间

  • disk_mapped: 文件映射的总大小

  • disk_mapped_cached: 实际缓存到内存中的文件映射总大小

  • disk_mapped_doclists 和 disk_mapped_cached_doclists: 属于文档列表的总映射和缓存映射部分

  • disk_mapped_hitlists 和 disk_mapped_cached_hitlists: 属于命中列表的总映射和缓存映射部分

  • killed_documents 和 killed_rate: 被删除的文档数量及其删除率

  • ram_chunk: 实时或过滤表的内存块大小

  • ram_chunk_segments_count: 内存块内部由多个段组成，通常不超过32段

  • disk_chunks: 实时表中的磁盘块数量

  • mem_limit: 实时表的rt_mem_limit值

  • mem_limit_rate: 内存块被刷新为磁盘块的比率

  • ram_bytes_retired: 内存块中的垃圾大小

  • optimizing: 大于0表示表当前正在进行优化

  • locked: 大于0表示表当前被锁定

  • max_stack_need: 计算最复杂的过滤查询所需的栈空间

  • average_stack_base: 计算过滤查询时通常占用的栈空间

  • desired_thread_stack: 所需的线程栈大小

  • tid 和 tid_saved: 表保存状态的标识

  • query_time_* 和 exact_query_time_*: 查询执行时间统计数据

  • found_rows_*: 查询找到的行数统计数据

SQL:

mysql> SHOW TABLE statistic STATUS;
+-----------------------------+--------------------------------------------------------------------------+
| Variable_name               | Value                                                                    |
+-----------------------------+--------------------------------------------------------------------------+
| index_type                  | rt                                                                       |
| indexed_documents           | 146000                                                                   |
| indexed_bytes               | 149504000                                                                |
| ram_bytes                   | 87674788                                                                 |
| disk_bytes                  | 1762811                                                                  |
| disk_mapped                 | 794147                                                                   |
| disk_mapped_cached          | 802816                                                                   |
| disk_mapped_doclists        | 0                                                                        |
| disk_mapped_cached_doclists | 0                                                                        |
| disk_mapped_hitlists        | 0                                                                        |
| disk_mapped_cached_hitlists | 0                                                                        |
| killed_documents            | 0                                                                        |
| killed_rate                 | 0.00%                                                                    |
| ram_chunk                   | 86865484                                                                 |
| ram_chunk_segments_count    | 24                                                                       |
| disk_chunks                 | 1                                                                        |
| mem_limit                   | 134217728                                                                |
| mem_limit_rate              | 95.00%                                                                   |
| ram_bytes_retired           | 0                                                                        |
| optimizing                  | 1                                                                        |
| locked                      | 0                                                                        |
| tid                         | 0                                                                        |
| tid_saved                   | 0                                                                        |
| query_time_1min             | {"queries":0, "avg":"-", "min":"-", "max":"-", "pct95":"-", "pct99":"-"} |
| query_time_5min             | {"queries":0, "avg":"-", "min":"-", "max":"-", "pct95":"-", "pct99":"-"} |
| query_time_15min            | {"queries":0, "avg":"-", "min":"-", "max":"-", "pct95":"-", "pct99":"-"} |
| query_time_total            | {"queries":0, "avg":"-", "min":"-", "max":"-", "pct95":"-", "pct99":"-"} |
| found_rows_1min             | {"queries":0, "avg":"-", "min":"-", "max":"-", "pct95":"-", "pct99":"-"} |
| found_rows_5min             | {"queries":0, "avg":"-", "min":"-", "max":"-", "pct95":"-", "pct99":"-"} |
| found_rows_15min            | {"queries":0, "avg":"-", "min":"-", "max":"-", "pct95":"-", "pct99":"-"} |
| found_rows_total            | {"queries":0, "avg":"-", "min":"-", "max":"-", "pct95":"-", "pct99":"-"} |
+-----------------------------+--------------------------------------------------------------------------+
29 rows in set (0.00 sec)

PHP:

$index->status();
Array(
    [index_type] => rt
    [indexed_documents] => 3
    [indexed_bytes] => 0
    [ram_bytes] => 6678
    [disk_bytes] => 611
    [ram_chunk] => 990
    [ram_chunk_segments_count] => 2
    [mem_limit] => 134217728
    [ram_bytes_retired] => 0
    [optimizing] => 0
    [locked] => 0
    [tid] => 15
    [query_time_1min] => {"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}
    [query_time_5min] => {"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}
    [query_time_15min] => {"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}
    [query_time_total] => {"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}
    [found_rows_1min] => {"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}
    [found_rows_5min] => {"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}
    [found_rows_15min] => {"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}
    [found_rows_total] => {"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}

)

Python:

utilsApi.sql('SHOW TABLE statistic STATUS')
{u'columns': [{u'Key': {u'type': u'string'}},
              {u'Value': {u'type': u'string'}}],
 u'data': [
   {u'Key': u'index_type', u'Value': u'rt'}
    {u'Key': u'indexed_documents', u'Value': u'3'}
    {u'Key': u'indexed_bytes', u'Value': u'0'}
    {u'Key': u'ram_bytes', u'Value': u'6678'}
    {u'Key': u'disk_bytes', u'Value': u'611'}
    {u'Key': u'ram_chunk', u'Value': u'990'}
    {u'Key': u'ram_chunk_segments_count', u'Value': u'2'}
    {u'Key': u'mem_limit', u'Value': u'134217728'}
    {u'Key': u'ram_bytes_retired', u'Value': u'0'}
    {u'Key': u'optimizing', u'Value': u'0'}
    {u'Key': u'locked', u'Value': u'0'}
    {u'Key': u'tid', u'Value': u'15'}
    {u'Key': u'query_time_1min', u'Value': u'{"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}'}
    {u'Key': u'query_time_5min', u'Value': u'{"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}'}
    {u'Key': u'query_time_15min', u'Value': u'{"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}'}
    {u'Key': u'query_time_total', u'Value': u'{"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}'}
    {u'Key': u'found_rows_1min', u'Value': u'{"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}'}
    {u'Key': u'found_rows_5min', u'Value': u'{"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}'}
    {u'Key': u'found_rows_15min', u'Value': u'{"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}'}
    {u'Key': u'found_rows_total', u'Value': u'{"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}'}],
 u'error': u'',
 u'total': 0,
 u'warning': u''}

Javascript:

res = await utilsApi.sql('SHOW TABLE statistic STATUS');
{"columns": [{"Key": {"type": "string"}},
              {"Value": {"type": "string"}}],
 "data": [
   {"Key": "index_type", "Value": "rt"}
    {"Key": "indexed_documents", "Value": "3"}
    {"Key": "indexed_bytes", "Value": "0"}
    {"Key": "ram_bytes", "Value": "6678"}
    {"Key": "disk_bytes", "Value": "611"}
    {"Key": "ram_chunk", "Value": "990"}
    {"Key": "ram_chunk_segments_count", "Value": "2"}
    {"Key": "mem_limit", "Value": "134217728"}
    {"Key": "ram_bytes_retired", "Value": "0"}
    {"Key": "optimizing", "Value": "0"}
    {"Key": "locked", "Value": "0"}
    {"Key": "tid", "Value": "15"}
    {"Key": "query_time_1min", "Value": "{"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}"}
    {"Key": "query_time_5min", "Value": "{"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}"}
    {"Key": "query_time_15min", "Value": "{"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}"}
    {"Key": "query_time_total", "Value": "{"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}"}
    {"Key": "found_rows_1min", "Value": "{"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}"}
    {"Key": "found_rows_5min", "Value": "{"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}"}
    {"Key": "found_rows_15min", "Value": "{"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}"}
    {"Key": "found_rows_total", "Value": "{"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}"}],
 "error": "",
 "total": 0,
 "warning": ""}

Java:

utilsApi.sql("SHOW TABLE statistic STATUS");

{columns=[{ Key : { type=string }},
              { Value : { type=string }}],
  data : [
   { Key=index_type, Value=rt}
    { Key=indexed_documents, Value=3}
    { Key=indexed_bytes, Value=0}
    { Key=ram_bytes, Value=6678}
    { Key=disk_bytes, Value=611}
    { Key=ram_chunk, Value=990}
    { Key=ram_chunk_segments_count, Value=2}
    { Key=mem_limit, Value=134217728}
    { Key=ram_bytes_retired, Value=0}
    { Key=optimizing, Value=0}
    { Key=locked, Value=0}
    { Key=tid, Value=15}
    { Key=query_time_1min, Value={queries:1, avg_sec:0.001, min_sec:0.001, max_sec:0.001, pct95_sec:0.001, pct99_sec:0.001}}
    { Key=query_time_5min, Value={queries:1, avg_sec:0.001, min_sec:0.001, max_sec:0.001, pct95_sec:0.001, pct99_sec:0.001}}
    { Key=query_time_15min, Value={queries:1, avg_sec:0.001, min_sec:0.001, max_sec:0.001, pct95_sec:0.001, pct99_sec:0.001}}
    { Key=query_time_total, Value={queries:1, avg_sec:0.001, min_sec:0.001, max_sec:0.001, pct95_sec:0.001, pct99_sec:0.001}}
    { Key=found_rows_1min, Value={queries:1, avg:3, min:3, max:3, pct95:3, pct99:3}}
    { Key=found_rows_5min, Value={queries:1, avg:3, min:3, max:3, pct95:3, pct99:3}}
    { Key=found_rows_15min, Value={queries:1, avg:3, min:3, max:3, pct95:3, pct99:3}}
    { Key=found_rows_total, Value={queries:1, avg:3, min:3, max:3, pct95:3, pct99:3}}],
  error= ,
  total=0,
  warning= }

C#:

utilsApi.Sql("SHOW TABLE statistic STATUS");

{columns=[{ Key : { type=string }},
              { Value : { type=string }}],
  data : [
   { Key=index_type, Value=rt}
    { Key=indexed_documents, Value=3}
    { Key=indexed_bytes, Value=0}
    { Key=ram_bytes, Value=6678}
    { Key=disk_bytes, Value=611}
    { Key=ram_chunk, Value=990}
    { Key=ram_chunk_segments_count, Value=2}
    { Key=mem_limit, Value=134217728}
    { Key=ram_bytes_retired, Value=0}
    { Key=optimizing, Value=0}
    { Key=locked, Value=0}
    { Key=tid, Value=15}
    { Key=query_time_1min, Value={queries:1, avg_sec:0.001, min_sec:0.001, max_sec:0.001, pct95_sec:0.001, pct99_sec:0.001}}
    { Key=query_time_5min, Value={queries:1, avg_sec:0.001, min_sec:0.001, max_sec:0.001, pct95_sec:0.001, pct99_sec:0.001}}
    { Key=query_time_15min, Value={queries:1, avg_sec:0.001, min_sec:0.001, max_sec:0.001, pct95_sec:0.001, pct99_sec:0.001}}
    { Key=query_time_total, Value={queries:1, avg_sec:0.001, min_sec:0.001, max_sec:0.001, pct95_sec:0.001, pct99_sec:0.001}}
    { Key=found_rows_1min, Value={queries:1, avg:3, min:3, max:3, pct95:3, pct99:3}}
    { Key=found_rows_5min, Value={queries:1, avg:3, min:3, max:3, pct95:3, pct99:3}}
    { Key=found_rows_15min, Value={queries:1, avg:3, min:3, max:3, pct95:3, pct99:3}}
    { Key=found_rows_total, Value={queries:1, avg:3, min:3, max:3, pct95:3, pct99:3}}],
  error="" ,
  total=0,
  warning="" }

TypeScript:

res = await utilsApi.sql('SHOW TABLE statistic STATUS');
{
	"columns": 
	[{
		"Key": {"type": "string"}
	},
    {
    	"Value": {"type": "string"}
    }],
	"data": 
	[
		{"Key": "index_type", "Value": "rt"}
	    {"Key": "indexed_documents", "Value": "3"}
	    {"Key": "indexed_bytes", "Value": "0"}
	    {"Key": "ram_bytes", "Value": "6678"}
	    {"Key": "disk_bytes", "Value": "611"}
	    {"Key": "ram_chunk", "Value": "990"}
	    {"Key": "ram_chunk_segments_count", "Value": "2"}
	    {"Key": "mem_limit", "Value": "134217728"}
	    {"Key": "ram_bytes_retired", "Value": "0"}
	    {"Key": "optimizing", "Value": "0"}
	    {"Key": "locked", "Value": "0"}
	    {"Key": "tid", "Value": "15"}
	    {"Key": "query_time_1min", "Value": "{"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}"}
	    {"Key": "query_time_5min", "Value": "{"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}"}
	    {"Key": "query_time_15min", "Value": "{"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}"}
	    {"Key": "query_time_total", "Value": "{"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}"}
	    {"Key": "found_rows_1min", "Value": "{"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}"}
	    {"Key": "found_rows_5min", "Value": "{"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}"}
	    {"Key": "found_rows_15min", "Value": "{"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}"}
	    {"Key": "found_rows_total", "Value": "{"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}"}
	],
	"error": "",
	"total": 0,
	"warning": ""
}

Go:

apiClient.UtilsAPI.Sql(context.Background()).Body("SHOW TABLE statistic STATUS").Execute()
{
	"columns": 
	[{
		"Key": {"type": "string"}
	},
    {
    	"Value": {"type": "string"}
    }],
	"data": 
	[
		{"Key": "index_type", "Value": "rt"}
	    {"Key": "indexed_documents", "Value": "3"}
	    {"Key": "indexed_bytes", "Value": "0"}
	    {"Key": "ram_bytes", "Value": "6678"}
	    {"Key": "disk_bytes", "Value": "611"}
	    {"Key": "ram_chunk", "Value": "990"}
	    {"Key": "ram_chunk_segments_count", "Value": "2"}
	    {"Key": "mem_limit", "Value": "134217728"}
	    {"Key": "ram_bytes_retired", "Value": "0"}
	    {"Key": "optimizing", "Value": "0"}
	    {"Key": "locked", "Value": "0"}
	    {"Key": "tid", "Value": "15"}
	    {"Key": "query_time_1min", "Value": "{"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}"}
	    {"Key": "query_time_5min", "Value": "{"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}"}
	    {"Key": "query_time_15min", "Value": "{"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}"}
	    {"Key": "query_time_total", "Value": "{"queries":1, "avg_sec":0.001, "min_sec":0.001, "max_sec":0.001, "pct95_sec":0.001, "pct99_sec":0.001}"}
	    {"Key": "found_rows_1min", "Value": "{"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}"}
	    {"Key": "found_rows_5min", "Value": "{"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}"}
	    {"Key": "found_rows_15min", "Value": "{"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}"}
	    {"Key": "found_rows_total", "Value": "{"queries":1, "avg":3, "min":3, "max":3, "pct95":3, "pct99":3}"}
	],
	"error": "",
	"total": 0,
	"warning": ""
}
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