阿帕奇点燃查询卡

我尝试在Apache中点燃查询缓存的数据库中，我得到以下日志并坚持阿帕奇点燃查询卡

指标为本地节点（禁止设置“metricsLogFrequency”为0） ^ - 节点[ID = c7f54d16，name = null，uptime = 00：01：00：002] ^ -H/N/C [hosts = 1，nodes = 2，CPUs = 4] ^ - CPU [cur = 0.17％平均值= 5.01％，GC = 0％] ^ - 堆[used = 851MB，free = 53.2％，comm = 1031MB] ^ - 非堆[used = 58MB，free = -1％，comm = 59MB] ^ - 公共线程池[active = 0，idle = 6，qSize = 0] ^ - 系统线程池[active = 0，idle = 16，qSize = 0] ^ - 出站邮件队列[size = 0]

我做错了什么？这是不工作

SELECT DISTINCT m1 AS m1,m1_TYP AS m1_TYP FROM (SELECT entry AS a5,QS5.a1 AS a1,QS5.a4 AS a4,QS5.m1 AS m1,m1_TYP AS m1_TYP 
FROM abc AS T,(SELECT entity AS m1,typ AS m1_typ,elem AS a5,QS4.a1 AS a1,QS4.a4 AS a4 
FROM xyz AS T,(SELECT entry AS a2,QS3.a1 AS a1,QS3.a4 AS a4,QS3.m1 AS m1,m1_TYP AS m1_TYP 
FROM abc AS T,(SELECT entry AS a4,QS2.a1 AS a1,QS2.a2 AS a2,QS2.m1 AS m1,m1_TYP AS m1_TYP 
FROM abc AS T,(SELECT entry AS a3,QS1.a1 AS a1,QS1.a2 AS a2,QS1.a4 AS a4,QS1.m1 AS m1,m1_TYP AS m1_TYP 
FROM abc AS T,(SELECT a1 AS a1,COALESCE(S4.elem,val4) AS a4,m1 AS m1,m1_TYP AS m1_TYP,COALESCE(S2.elem,val2) AS a2,COALESCE(S3.elem,val3) AS a3 
FROM (SELECT entry AS a1,T.val6 AS VAL4,T.val2 AS m1,T.typ2 AS m1_TYP,T.val8 AS VAL2,T.val6 AS VAL3 
FROM abc AS T,(SELECT elem AS a1 
FROM xyz AS T 
WHERE entity = '3' AND typ = 5001 
    AND (prop = '1oh~#has_neighbours')) AS QS0 WHERE entry = QS0.a1 
    AND (T.prop0 = '4xm~#type' AND T.prop8 = '1oh~#has_double_bond' AND T.prop6 = '1oh~#has_single_bond' AND T.prop6 = '1oh~#has_single_bond' AND T.prop2 = '1oh~#is_atom_of') 
    AND T.val0 = '7a~') AS Q1 LEFT OUTER JOIN efg AS S4 ON Q1.VAL4 = S4.list_id LEFT OUTER JOIN efg AS S2 ON Q1.VAL2 = S2.list_id LEFT OUTER JOIN efg AS S3 ON Q1.VAL3 = S3.list_id 
    WHERE ( (a1 <> COALESCE(S4.elem,val4) 
))) AS QS1 WHERE entry = QS1.a3 
    AND (T.prop0 = '4xm~#type' AND T.prop5 = '1oh~#has_neighbours' AND T.prop8 = '1oh~#has_charge') 
    AND T.val0 = '562~' AND T.val5 = '1' AND T.val8 = '6o7~') AS QS2 WHERE entry = QS2.a4 
    AND (T.prop0 = '4xm~#type' AND T.prop5 = '1oh~#has_neighbours') 
    AND T.val0 = '7a~' AND T.val5 = '1') AS QS3 WHERE entry = QS3.a2 
    AND (T.prop0 = '4xm~#type' AND T.prop5 = '1oh~#has_neighbours') 
    AND T.val0 = '562~' AND T.val5 = '1') AS QS4 WHERE entity = QS4.m1 AND typ = QS4.m1_TYP 
    AND (prop = '1oh~#is_atom_of')) AS QS5 WHERE entry = QS5.a5 
    AND (T.prop0 = '4xm~#type' AND T.prop5 = '1oh~#has_neighbours') 
    AND T.val0 = '1eg~' AND T.val5 = '0') AS QS6 LIMIT 100

查询其作品

SELECT m1 AS m1,m1_TYP AS m1_TYP FROM (SELECT entry AS a2,QS3.a1 AS a1,QS3.a4 AS a4,QS3.m1 AS m1,m1_TYP AS m1_TYP 
FROM abc AS T,(SELECT entry AS a3,QS2.a1 AS a1,QS2.a2 AS a2,QS2.a4 AS a4,QS2.m1 AS m1,m1_TYP AS m1_TYP 
FROM abc AS T,(SELECT entry AS a4,QS1.a1 AS a1,QS1.a2 AS a2,QS1.a3 AS a3,QS1.m1 AS m1,m1_TYP AS m1_TYP 
FROM abc AS T,(SELECT a1 AS a1,m1 AS m1,m1_TYP AS m1_TYP,COALESCE(S3.elem,val3) AS a3,COALESCE(S4.elem,val4) AS a4,COALESCE(S2.elem,val2) AS a2 
FROM (SELECT entry AS a1,T.val2 AS m1,T.typ2 AS m1_TYP,T.val8 AS VAL3,T.val6 AS VAL4,T.val6 AS VAL2 
FROM abc AS T,(SELECT elem AS a1 
FROM xyz AS T 
WHERE entity = '3' AND typ = 5001 
    AND (prop = '1oh~#has_neighbours')) AS QS0 WHERE entry = QS0.a1 
    AND (T.prop0 = '4xm~#type' AND T.prop6 = '1oh~#has_single_bond' AND T.prop8 = '1oh~#has_double_bond' AND T.prop6 = '1oh~#has_single_bond' AND T.prop2 = '1oh~#is_atom_of') 
    AND T.val0 = '7a~') AS Q1 LEFT OUTER JOIN efg AS S3 ON Q1.VAL3 = S3.list_id LEFT OUTER JOIN efg AS S4 ON Q1.VAL4 = S4.list_id LEFT OUTER JOIN efg AS S2 ON Q1.VAL2 = S2.list_id 
    WHERE ( (a1 <> COALESCE(S4.elem,val4) 
))) AS QS1 WHERE entry = QS1.a4 
    AND (T.prop0 = '4xm~#type' AND T.prop5 = '1oh~#has_neighbours') 
    AND T.val0 = '7a~' AND T.val5 = '1') AS QS2 WHERE entry = QS2.a3 
    AND (T.prop0 = '4xm~#type' AND T.prop5 = '1oh~#has_neighbours') 
    AND T.val0 = '562~' AND T.val5 = '1') AS QS3 WHERE entry = QS3.a2 
    AND (T.prop0 = '4xm~#type' AND T.prop5 = '1oh~#has_neighbours') 
    AND T.val0 = '562~' AND T.val5 = '1') AS QS4 LIMIT 100

来源

2016-09-26 Sandeep Purohit

这是当前度量的只是输出

查询，它打印出来一次默认分钟。你为什么认为查询卡住了？很可能你只是没有正确配置索引，因此需要很长时间。请参阅此文档以了解有关如何执行此操作的详细信息：https://apacheignite.readme.io/docs/sql-queries

来源

2016-09-26 20:27:16

我有我查询的表的索引，我等待了很长时间但没有得到结果，所以我认为它卡住了，我按照上面的文档已经有一些的查询正在给出结果，但有些只是打印此指标。 –

听起来似乎只是需要很长时间，你需要进一步优化。使用'EXPLAIN'获取执行计划并检查是否实际使用了索引。 –

感谢valentin，但它不工作我的一些查询工作，有些是查询不工作，我添加2查询正在工作，而不是在工作 –

阿帕奇点燃查询卡

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