使用datastax 1.0.5 java驱动程序和cassaforte读取Cassandra 1.2时,在读取Cassandra 1.2映射时序列化值错误无效的序列化值错误
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26-12-2019 - |
题
我正在使用cassaforte 1.3.0-beta9,cassandra 1.2(datastax)和com.datastax.cassandra / cassandra-driver-core 1.0.5(因为2.0不适用于cassandra 1.2)。我有一个表格,其中包含以下架构:
CREATE TABLE entities (
id text,
address_country text,
address_county text,
address_region text,
address_street_two text,
csv_uploads list<text>,
documents list<text>,
name text,
notes list<text>,
photos list<text>,
project_id text,
property_code text,
property_data text,
retrofit_completion_date text,
metering_point_ids text,
devices map<text,text>,
user_id text,
PRIMARY KEY (id)
)
.
这是一行存储的示例:
7b237da126d39ccf98f80d78b6145a10828970f8 |
{'b9d88015c84312bf24cef0e7f1a0baf98dbc8d8d':
'{"metadata":{"passivrole":"zone 1 temperature,zone 1 temperature"},
"readings":
[{"type":"temperature","resolution":"120","accuracy":"0.1","period":"INSTANT"},
{"type":"interpolatedTemperatureAir","resolution":100,"accuracy":"0.1","period":"INSTANT"}],
"description":"External air temperature sensor",
"entity-id":"3e0730d4672538307056a30615aaaa333107d94e"}',
'd2fe3dca47b760dd67759a56ee0ebbc2cb3395f4':
'{"metadata":{"passivrole":"zone 1 humidity"},
"readings":[{"type":"blah","resolution":"120","accuracy":"0.1","period":"INSTANT"}],
"description":" air humidity sensor",
"entity-id":"3e0730d4672538307056a30615aaaa333107d94e"}'} |
alice
.
当我尝试读取devices
列时,我收到以下错误:
com.datastax.driver.core.exceptions.InvalidTypeException: Invalid serialized value for type map<text, text> (String didn't validate.)
at com.datastax.driver.core.DataType.deserialize(DataType.java:503)
.
我可以读取设备列,没有使用CQLSH的问题(上面显示)。存储在地图中的值是合格的JSON对象。
这是样本工作流程:
(require '[clojurewerkz.cassaforte.client :as cassaclient]
' [clojurewerkz.cassaforte.query :as cassaquery]
' [clojurewerkz.cassaforte.cql :as cql])
;; SELECT on empty devices:
(binding [cassaclient/*default-session* session]
(let [entity (cql/select :entities (cassaquery/where :id "3e0730d4672538307056a30615aaaa333107d94e"))]
(prn "retrieved entity: " entity)))
;; Returns vector of results, no errors:
"retrieved entity: " [{:retrofit_completion_date nil, :notes nil, :property_code "3e49de0-12af-012e-4f3a-12313b0348f8", :devices nil, :name nil, :user_id "alice", :csv_uploads nil, :project_id "0b4f512fb7834a0878252ab144a525d424445ba2", :photos nil, :property_data nil, :metering_point_ids "[\"1\" \"2\"]", :address_street_two nil, :documents nil, :address_region nil, :address_country nil, :address_county nil, :id "3e0730d4672538307056a30615aaaa333107d94e"}]
;; UPDATE using cassaforte:
(binding [cassaclient/*default-session* session]
(cql/update :entities {:devices {"0edf9e09bce895caf0342ac6ae12511555930362" "{:metadata {\"passivrole\" \"zone 1 humidity\"}, :readings [{\"type\" \"tba\", \"resolution\" \"90\", \"accuracy\" \"0.2\", \"period\" \"INSTANT\"}], :description \"lalalala\", :entity-id \"3e0730d4672538307056a30615aaaa333107d94e\"}"}} (cassaquery/where :id "3e0730d4672538307056a30615aaaa333107d94e")))
;; update worked ok, cqlsh (select devices from entities where id = '3e0730d4672538307056a30615aaaa333107d94e';)
;; returns correct map:
;; {'0edf9e09bce895caf0342ac6ae12511555930362': '{:metadata {"passivrole" "zone 1 humidity"}, :readings [{"type" "tba", "resolution" "90", "accuracy" "0.2", "period" "INSTANT"}], :description "lalalala", :entity-id "3e0730d4672538307056a30615aaaa333107d94e"}'}
;; SELECT using cassaforte
(binding [cassaclient/*default-session* session]
(let [entity (cql/select :entities (cassaquery/where :id "3e0730d4672538307056a30615aaaa333107d94e"))]
(prn "retrieved entity: " entity)))
;; Returns this error:
;; InvalidTypeException Invalid serialized value for type map<text, text> (String didn't validate.) com.datastax.driver.core.DataType.deserialize (DataType.java:503)
.
我已经尝试了使用原始CQL和cassaforte的相同工作流程,结果完全相同:
(require '[clojurewerkz.cassaforte.client :as cassaclient])
;; SELECT on empty devices:
(cassaclient/execute session "SELECT * FROM entities WHERE id = '3e0730d4672538307056a30615aaaa333107d94e';")
;; Returns vector of results, no errors:
[{:retrofit_completion_date nil, :notes nil, :property_code "3e49de0-12af-012e-4f3a-12313b0348f8", :devices nil, :name nil, :user_id "alice", :csv_uploads nil, :project_id "0b4f512fb7834a0878252ab144a525d424445ba2", :photos nil, :property_data nil, :metering_point_ids "[\"1\" \"2\"]", :address_street_two nil, :documents nil, :address_region nil, :address_country nil, :address_county nil, :id "3e0730d4672538307056a30615aaaa333107d94e"}]
;; UPDATE using cassaforte:
(cassaclient/execute session "UPDATE entities SET devices = {'0edf9e09bce895caf0342ac6ae12511555930362' : '{:metadata {\"passivrole\" \"zone 1 humidity\"}, :readings [{\"type\" \"tba\", \"resolution\" \"90\", \"accuracy\" \"0.2\", \"period\" \"INSTANT\"}], :description \"lalalala\", :entity-id \"3e0730d4672538307056a30615aaaa333107d94e\"}'} WHERE id = '3e0730d4672538307056a30615aaaa333107d94e';")
;; update worked ok, cqlsh (select devices from entities where id = '3e0730d4672538307056a30615aaaa333107d94e';)
;; returns correct map:
;; {'0edf9e09bce895caf0342ac6ae12511555930362': '{:metadata {"passivrole" "zone 1 humidity"}, :readings [{"type" "tba", "resolution" "90", "accuracy" "0.2", "period" "INSTANT"}], :description "lalalala", :entity-id "3e0730d4672538307056a30615aaaa333107d94e"}'}
;; SELECT using cassaforte
(cassaclient/execute session "SELECT * FROM entities WHERE id = '3e0730d4672538307056a30615aaaa333107d94e';")
;; Returns this error:
;; InvalidTypeException Invalid serialized value for type map<text, text> (String didn't validate.) com.datastax.driver.core.DataType.deserialize (DataType.java:503)
.
如何将JSON对象存储在Cassandra的地图集中的任何帮助和/或建议将非常感谢。
解决方案
(这里的cassaforte维护者)
到目前为止还没有看到这个问题,
这是一个问题1.0.5版本的DataStax驱动程序。 Cassaforte目前在2.0.0处,问题封闭式Wit上面的任何版本Beta12。 更多信息在这里: https://github.com/clojurewerkz/cassaforte/issues/41
使用最新版本的cassaforte,并尝试粘贴到与cassaforte捆绑在一起的Java驱动程序版本,它会很棒。
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