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Posted to notifications@shardingsphere.apache.org by GitBox <gi...@apache.org> on 2021/01/06 08:32:12 UTC
[GitHub] [shardingsphere] duzhanfei opened a new issue #8913: 2Unknown exception: [Cannot invoke method hashCode() on null object]
duzhanfei opened a new issue #8913:
URL: https://github.com/apache/shardingsphere/issues/8913
### Which version of ShardingSphere did you use?
5.0.0-alpha
### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?
ShardingSphere-Proxy
When I insert data with shardingproxy5.0.0-alpha, the null pointer is prompted, but my sharding key is not empty. Everything works fine with shardingproxy4.1.1
config：
schemaName: sharding_db
dataSourceCommon:
connectionTimeoutMilliseconds: 30000
idleTimeoutMilliseconds: 60000
maxLifetimeMilliseconds: 1800000
maxPoolSize: 50
minPoolSize: 1
maintenanceIntervalMilliseconds: 30000
dataSources:
ds_0:
url: jdbc:mysql://192.2.171.54:3306/db_0?serverTimezone=UTC&useSSL=false
username: crmuser
password: crm123
ds_1:
url: jdbc:mysql://192.2.171.55:3306/db_1?serverTimezone=UTC&useSSL=false
username: crmuser
password: crm123
ds_2:
url: jdbc:mysql://192.2.171.56:3306/db_2?serverTimezone=UTC&useSSL=false
username: crmuser
password: crm123
ds_3:
url: jdbc:mysql://192.2.171.57:3306/db_3?serverTimezone=UTC&useSSL=false
username: crmuser
password: crm123
rules:
- !SHARDING
tables:
PBCST_QRY_INFO:
actualDataNodes: ds_${0..3}.PBCST_QRY_INFO_${0..15}
tableStrategy:
standard:
shardingColumn: ECIF_CUST_NO
shardingAlgorithmName: PBCST_QRY_INFO_inline
databaseStrategy:
standard:
shardingColumn: ECIF_CUST_NO
shardingAlgorithmName: database_inline
keyGenerateStrategy:
column: ECIF_CUST_NO
keyGeneratorName: snowflake
defaultDatabaseStrategy:
standard:
shardingColumn: ECIF_CUST_NO
shardingAlgorithmName: database_default
defaultTableStrategy:
none:
shardingAlgorithms:
database_default:
type: INLINE
props:
algorithm-expression: ds_0
database_inline:
type: INLINE
props:
algorithm-expression: ds_${Math.abs(ECIF_CUST_NO.hashCode() % 4)}
PBCST_QRY_INFO_inline:
type: INLINE
props:
algorithm-expression: PBCST_QRY_INFO_${Math.abs(ECIF_CUST_NO.hashCode() % 16)}
keyGenerators:
snowflake:
type: SNOWFLAKE
props:
worker-id: 123
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[GitHub] [shardingsphere] duzhanfei commented on issue #8913: 2Unknown exception: [Cannot invoke method hashCode() on null object]
Posted by GitBox <gi...@apache.org>.
duzhanfei commented on issue #8913:
URL: https://github.com/apache/shardingsphere/issues/8913#issuecomment-847446631
you can try to uppercase instead of lowercase
At 2021-05-23 21:09:54, "Juan Pan(Trista)" ***@***.***> wrote:
Hi @alongsoCJR
Please be careful of the inputted value and the InlineExpression you configured.
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[GitHub] [shardingsphere] tristaZero commented on issue #8913: 2Unknown exception: [Cannot invoke method hashCode() on null object]
Posted by GitBox <gi...@apache.org>.
tristaZero commented on issue #8913:
URL: https://github.com/apache/shardingsphere/issues/8913#issuecomment-758452074
Hi, More exception log is needed to locate the cause. But if I still unsure whether your issue is related to inline expression `PBCST_QRY_INFO_${Math.abs(ECIF_CUST_NO.hashCode() % 16)}`. I suggest you give `InlineExpressionParser` attention when you debug or test.
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[GitHub] [shardingsphere] tristaZero commented on issue #8913: 2Unknown exception: [Cannot invoke method hashCode() on null object]
Posted by GitBox <gi...@apache.org>.
tristaZero commented on issue #8913:
URL: https://github.com/apache/shardingsphere/issues/8913#issuecomment-759180518
Hi @duzhanfei ,
Welcome, I assigned this issue to you.
> I have provided all the exception logs
Hi, do you think the exception came from `InlineExpressionParser`?
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[GitHub] [shardingsphere] tristaZero commented on issue #8913: 2Unknown exception: [Cannot invoke method hashCode() on null object]
Posted by GitBox <gi...@apache.org>.
tristaZero commented on issue #8913:
URL: https://github.com/apache/shardingsphere/issues/8913#issuecomment-756532127
Hi community,
### Tasks
Are you interested in digging into `ShardingRouteEngineFactory` to verify whether ShardingProxy can run the following SQLs well?
```SQL
SHOW STATUS;
SELECT @@session.transaction_read_only;
```
### How
- Start ShardingProxy with a sharding rule example
- Execute the SQLs above one at a time
- Check whether they can work well
- If not, please provide an exception log here, and we could consider fixing them. (My speculation is there is incorrect handling in `ShardingRouteEngineFactory`, so please give a breakpoint there if you want to do debugging.)
Thanks for your interaction and waiting for your any comments. :)
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[GitHub] [shardingsphere] tristaZero commented on issue #8913: 2Unknown exception: [Cannot invoke method hashCode() on null object]
Posted by GitBox <gi...@apache.org>.
tristaZero commented on issue #8913:
URL: https://github.com/apache/shardingsphere/issues/8913#issuecomment-755889992
Hi @duzhanfei ,
Please provide your sql and exception info. The detailed log after setting `sql-show` = `true` is preferred.
Thanks.
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[GitHub] [shardingsphere] tristaZero commented on issue #8913: 2Unknown exception: [Cannot invoke method hashCode() on null object]
Posted by GitBox <gi...@apache.org>.
tristaZero commented on issue #8913:
URL: https://github.com/apache/shardingsphere/issues/8913#issuecomment-756530281
Hi @duzhanfei ,
Thanks for your feedback. Is that an entire log? You don't skip something, do you?
Could you try a SQL without null value (`VALUES
('642054011658', '梅', '01', '1219123', '111', '6106060118', null, null, null, null)`)?
Besides, it looks like we have inadequate support for `MySQLShowOtherStatement` and `SELECT @@session.transaction_read_only` in `ShardingRouteEngineFactory`, which needs in-depth debugging.
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[GitHub] [shardingsphere] duzhanfei commented on issue #8913: 2Unknown exception: [Cannot invoke method hashCode() on null object]
Posted by GitBox <gi...@apache.org>.
duzhanfei commented on issue #8913:
URL: https://github.com/apache/shardingsphere/issues/8913#issuecomment-757980968
@tristaZero
The sharding key is of type String, and sharding rules are made by hashing values
The following scenarios will cause NullPointerException
①When querying, the sharding key is lowercase,
such as:
PBCST_QRY_INFO_${Math.abs(ecif_cust_no.hashCode() % 16)}
② When inserting data, the sharding key is uppercase
such as:
PBCST_QRY_INFO_${Math.abs(ECIF_CUST_NO.hashCode() % 16)}
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[GitHub] [shardingsphere] duzhanfei commented on issue #8913: 2Unknown exception: [Cannot invoke method hashCode() on null object]
Posted by GitBox <gi...@apache.org>.
duzhanfei commented on issue #8913:
URL: https://github.com/apache/shardingsphere/issues/8913#issuecomment-758640901
I wanna have a try. Thx.
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[GitHub] [shardingsphere] alongsoCJR commented on issue #8913: 2Unknown exception: [Cannot invoke method hashCode() on null object]
Posted by GitBox <gi...@apache.org>.
alongsoCJR commented on issue #8913:
URL: https://github.com/apache/shardingsphere/issues/8913#issuecomment-844882328
i meeting the same questions，please help me
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[GitHub] [shardingsphere] duzhanfei edited a comment on issue #8913: 2Unknown exception: [Cannot invoke method hashCode() on null object]
Posted by GitBox <gi...@apache.org>.
duzhanfei edited a comment on issue #8913:
URL: https://github.com/apache/shardingsphere/issues/8913#issuecomment-757980968
@tristaZero
The sharding key is of type String, and sharding rules are made by hashing values
The following scenarios will cause NullPointerException
①When querying, the sharding key is lowercase,
such as:
PBCST_QRY_INFO_${Math.abs(ecif_cust_no.hashCode() % 16)}
You can have a look at the issue I mentioned
https://github.com/apache/shardingsphere/issues/8303
② When inserting data, the sharding key is uppercase
such as:
PBCST_QRY_INFO_${Math.abs(ECIF_CUST_NO.hashCode() % 16)}
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[GitHub] [shardingsphere] duzhanfei commented on issue #8913: 2Unknown exception: [Cannot invoke method hashCode() on null object]
Posted by GitBox <gi...@apache.org>.
duzhanfei commented on issue #8913:
URL: https://github.com/apache/shardingsphere/issues/8913#issuecomment-755925003
sql:
INSERT INTO PBCST_QRY_INFO (
ECIF_CUST_NO,
CUST_APLTN,
CUST_TYP_CD,
MP_NBR,
CTFTP_CD,
CRTF_NBR,
BLTO_PROV_ADMDV_CD,
BLTO_CITY_ADMDV_CD,
BLTO_DSTCY_ADMDV_CD,
CUST_ADDR
)
VALUES
('642054011658', '梅', '01', '1219123', '111', '6106060118', null, null, null, null)
log：
[INFO ] 14:51:32.907 [pool-79-thread-1] ShardingSphere-SQL - Logic SQL: SET PROFILING=1;
[INFO ] 14:51:32.907 [pool-79-thread-1] ShardingSphere-SQL - SQLStatement: MySQLSetStatement()
[INFO ] 14:51:32.907 [pool-79-thread-1] ShardingSphere-SQL - Actual SQL: ds_0 ::: SET PROFILING=1;
[INFO ] 14:51:32.907 [pool-79-thread-1] ShardingSphere-SQL - Actual SQL: ds_1 ::: SET PROFILING=1;
[INFO ] 14:51:32.907 [pool-79-thread-1] ShardingSphere-SQL - Actual SQL: ds_2 ::: SET PROFILING=1;
[INFO ] 14:51:32.907 [pool-79-thread-1] ShardingSphere-SQL - Actual SQL: ds_3 ::: SET PROFILING=1;
[INFO ] 14:51:32.926 [pool-79-thread-1] ShardingSphere-SQL - Logic SQL: SHOW STATUS
[INFO ] 14:51:32.926 [pool-79-thread-1] ShardingSphere-SQL - SQLStatement: MySQLShowOtherStatement()
[INFO ] 14:51:32.926 [pool-79-thread-1] ShardingSphere-SQL - Actual SQL: ds_0 ::: SHOW STATUS
[INFO ] 14:51:32.940 [pool-79-thread-1] ShardingSphere-SQL - Logic SQL: SHOW STATUS
[INFO ] 14:51:32.940 [pool-79-thread-1] ShardingSphere-SQL - SQLStatement: MySQLShowOtherStatement()
[INFO ] 14:51:32.940 [pool-79-thread-1] ShardingSphere-SQL - Actual SQL: ds_0 ::: SHOW STATUS
[ERROR] 14:51:33.080 [pool-79-thread-1] o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: Cannot invoke method hashCode() on null object
at org.codehaus.groovy.runtime.NullObject.hashCode(NullObject.java:174)
at org.codehaus.groovy.runtime.NullObject$hashCode.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
at org.codehaus.groovy.runtime.callsite.NullCallSite.call(NullCallSite.java:34)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
at java_lang_String$hashCode.call(Unknown Source)
at Script40$_run_closure1.doCall(Script40.groovy:1)
at sun.reflect.GeneratedMethodAccessor54.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:98)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:264)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1034)
at groovy.lang.Closure.call(Closure.java:420)
at groovy.lang.Closure.call(Closure.java:414)
at org.apache.shardingsphere.sharding.algorithm.sharding.inline.InlineShardingAlgorithm.doSharding(InlineShardingAlgorithm.java:69)
at org.apache.shardingsphere.sharding.route.strategy.type.standard.StandardShardingStrategy.doSharding(StandardShardingStrategy.java:67)
at org.apache.shardingsphere.sharding.route.strategy.type.standard.StandardShardingStrategy.doSharding(StandardShardingStrategy.java:56)
at org.apache.shardingsphere.sharding.route.engine.type.standard.ShardingStandardRoutingEngine.routeDataSources(ShardingStandardRoutingEngine.java:203)
at org.apache.shardingsphere.sharding.route.engine.type.standard.ShardingStandardRoutingEngine.route0(ShardingStandardRoutingEngine.java:191)
at org.apache.shardingsphere.sharding.route.engine.type.standard.ShardingStandardRoutingEngine.routeByShardingConditionsWithCondition(ShardingStandardRoutingEngine.java:114)
at org.apache.shardingsphere.sharding.route.engine.type.standard.ShardingStandardRoutingEngine.routeByShardingConditions(ShardingStandardRoutingEngine.java:107)
at org.apache.shardingsphere.sharding.route.engine.type.standard.ShardingStandardRoutingEngine.getDataNodes(ShardingStandardRoutingEngine.java:84)
at org.apache.shardingsphere.sharding.route.engine.type.standard.ShardingStandardRoutingEngine.route(ShardingStandardRoutingEngine.java:69)
at org.apache.shardingsphere.sharding.route.engine.ShardingSQLRouter.createRouteContext(ShardingSQLRouter.java:70)
at org.apache.shardingsphere.sharding.route.engine.ShardingSQLRouter.createRouteContext(ShardingSQLRouter.java:55)
at org.apache.shardingsphere.infra.route.engine.impl.PartialSQLRouteExecutor.route(PartialSQLRouteExecutor.java:59)
at org.apache.shardingsphere.infra.route.engine.SQLRouteEngine.route(SQLRouteEngine.java:57)
at org.apache.shardingsphere.infra.context.kernel.KernelProcessor.generateExecutionContext(KernelProcessor.java:52)
at org.apache.shardingsphere.proxy.backend.communication.jdbc.JDBCDatabaseCommunicationEngine.execute(JDBCDatabaseCommunicationEngine.java:77)
at org.apache.shardingsphere.proxy.backend.text.query.QueryBackendHandler.execute(QueryBackendHandler.java:61)
at org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:62)
at org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:100)
at org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:76)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
[INFO ] 14:51:42.764 [pool-73-thread-1] ShardingSphere-SQL - Logic SQL: SELECT @@session.transaction_read_only
[INFO ] 14:51:42.764 [pool-73-thread-1] ShardingSphere-SQL - SQLStatement: MySQLSelectStatement(limit=Optional.empty, lock=Optional.empty)
[INFO ] 14:51:42.764 [pool-73-thread-1] ShardingSphere-SQL - Actual SQL: ds_0 ::: SELECT @@session.transaction_read_only
[ERROR] 14:51:42.767 [pool-73-thread-1] o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: Cannot invoke method hashCode() on null object
at org.codehaus.groovy.runtime.NullObject.hashCode(NullObject.java:174)
at org.codehaus.groovy.runtime.NullObject$hashCode.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
at org.codehaus.groovy.runtime.callsite.NullCallSite.call(NullCallSite.java:34)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
at org.codehaus.groovy.runtime.NullObject$hashCode.call(Unknown Source)
at Script40$_run_closure1.doCall(Script40.groovy:1)
at sun.reflect.GeneratedMethodAccessor54.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:98)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
at org.codehaus.groovy.runtime.metaclass.ClosureMetaClass.invokeMethod(ClosureMetaClass.java:264)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1034)
at groovy.lang.Closure.call(Closure.java:420)
at groovy.lang.Closure.call(Closure.java:414)
at org.apache.shardingsphere.sharding.algorithm.sharding.inline.InlineShardingAlgorithm.doSharding(InlineShardingAlgorithm.java:69)
at org.apache.shardingsphere.sharding.route.strategy.type.standard.StandardShardingStrategy.doSharding(StandardShardingStrategy.java:67)
at org.apache.shardingsphere.sharding.route.strategy.type.standard.StandardShardingStrategy.doSharding(StandardShardingStrategy.java:56)
at org.apache.shardingsphere.sharding.route.engine.type.standard.ShardingStandardRoutingEngine.routeDataSources(ShardingStandardRoutingEngine.java:203)
at org.apache.shardingsphere.sharding.route.engine.type.standard.ShardingStandardRoutingEngine.route0(ShardingStandardRoutingEngine.java:191)
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[GitHub] [shardingsphere] duzhanfei commented on issue #8913: 2Unknown exception: [Cannot invoke method hashCode() on null object]
Posted by GitBox <gi...@apache.org>.
duzhanfei commented on issue #8913:
URL: https://github.com/apache/shardingsphere/issues/8913#issuecomment-758633288
I have provided all the exception logs
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[GitHub] [shardingsphere] duzhanfei commented on issue #8913: 2Unknown exception: [Cannot invoke method hashCode() on null object]
Posted by GitBox <gi...@apache.org>.
duzhanfei commented on issue #8913:
URL: https://github.com/apache/shardingsphere/issues/8913#issuecomment-757985321
https://github.com/apache/shardingsphere/issues/8303
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[GitHub] [shardingsphere] tristaZero commented on issue #8913: 2Unknown exception: [Cannot invoke method hashCode() on null object]
Posted by GitBox <gi...@apache.org>.
tristaZero commented on issue #8913:
URL: https://github.com/apache/shardingsphere/issues/8913#issuecomment-846560814
Hi @alongsoCJR
Please be careful of the inputted value and the InlineExpression you configured.
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[GitHub] [shardingsphere] duzhanfei edited a comment on issue #8913: 2Unknown exception: [Cannot invoke method hashCode() on null object]
Posted by GitBox <gi...@apache.org>.
duzhanfei edited a comment on issue #8913:
URL: https://github.com/apache/shardingsphere/issues/8913#issuecomment-757980968
@tristaZero
The sharding key is of type String, and sharding rules are made by hashing values
The following scenarios will cause NullPointerException
①When updating , the sharding key is lowercase,
such as:
PBCST_QRY_INFO_${Math.abs(ecif_cust_no.hashCode() % 16)}
You can have a look at the issue I mentioned
https://github.com/apache/shardingsphere/issues/8303
② When inserting data, the sharding key is uppercase
such as:
PBCST_QRY_INFO_${Math.abs(ECIF_CUST_NO.hashCode() % 16)}
----------------------------------------------------------------
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[GitHub] [shardingsphere] duzhanfei commented on issue #8913: 2Unknown exception: [Cannot invoke method hashCode() on null object]
Posted by GitBox <gi...@apache.org>.
duzhanfei commented on issue #8913:
URL: https://github.com/apache/shardingsphere/issues/8913#issuecomment-758654126
I wanna have a try. Thx.
At 2021-01-08 12:01:44, "Juan Pan(Trista)" <no...@github.com> wrote:
Hi community,
Tasks
Are you interested in digging into ShardingRouteEngineFactory to verify whether ShardingProxy can run the following SQLs well?
SHOW STATUS;
SELECT @@session.transaction_read_only;
How
Start ShardingProxy with a sharding rule example
Execute the SQLs above one at a time
Check whether they can work well
If not, please provide an exception log here, and we could consider fixing them. (My speculation is there is incorrect handling in ShardingRouteEngineFactory, so please give a breakpoint there if you want to do debugging.)
Thanks for your interaction and waiting for your any comments. :)
—
You are receiving this because you were mentioned.
Reply to this email directly, view it on GitHub, or unsubscribe.
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[GitHub] [shardingsphere] duzhanfei removed a comment on issue #8913: 2Unknown exception: [Cannot invoke method hashCode() on null object]
Posted by GitBox <gi...@apache.org>.
duzhanfei removed a comment on issue #8913:
URL: https://github.com/apache/shardingsphere/issues/8913#issuecomment-758640901
I wanna have a try. Thx.
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