ORA-01795 maximum number of expressions in a list is 1000 exception thrown when including B2B customer as a member of a B2B Unit.
Environment Hybris Commerce Suite 5.6.0 Oracle 11G
Reproducing the Issue
Create a B2B Unit in hMC / B2B Commerce / B2B Unit
Assign more than 1000 B2B Units as members (children) of the B2B Unit created on step 1
Include a B2B Customer as member (group) of the B2B Unit created on step 1
Log in store front with this B2B Customer.
As a result you are going to get Oracle exception ORA-01795: maximum number of expressions in a list is 1000
As mentioned by VinayKumar on Hybris Experts, the cause is the 1,000 limit in Oracle, which is also discussed here: How to put more than 1000 values into an Oracle IN clause
You need to split your queries by batches.
Related
I want to build a Kafka Connector in order to retrieve records from a database at near real time. My database is the Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 and the tables have millions of records. First of all, I would like to add the minimum load to my database using CDC. Secondly, I would like to retrieve records based on a LastUpdate field which has value after a certain date.
Searching at the site of confluent, the only open source connector that I found was the “Kafka Connect JDBC”. I think that this connector doesn’t have CDC mechanism and it isn’t possible to retrieve millions of records when the connector starts for the first time. The alternative solution that I thought is Debezium, but there is no Debezium Oracle Connector at the site of Confluent and I believe that it is at a beta version.
Which solution would you suggest? Is something wrong to my assumptions of Kafka Connect JDBC or Debezium Connector? Is there any other solution?
For query-based CDC which is less efficient, you can use the JDBC source connector.
For log-based CDC I am aware of a couple of options however, some of them require license:
1) Attunity Replicate that allows users to use a graphical interface to create real-time data pipelines from producer systems into Apache Kafka, without having to do any manual coding or scripting. I have been using Attunity Replicate for Oracle -> Kafka for a couple of years and was very satisfied.
2) Oracle GoldenGate that requires a license
3) Oracle Log Miner that does not require any license and is used by both Attunity and kafka-connect-oracle which is is a Kafka source connector for capturing all row based DML changes from an Oracle and streaming these changes to Kafka.Change data capture logic is based on Oracle LogMiner solution.
We have numerous customers using IBM's IIDR (info sphere Data Replication) product to replicate data from Oracle databases, (as well as Z mainframe, I-series, SQL Server, etc.) into Kafka.
Regardless of which of the sources used, data can be normalized into one of many formats in Kafka. An example of an included, selectable format is...
https://www.ibm.com/support/knowledgecenter/en/SSTRGZ_11.4.0/com.ibm.cdcdoc.cdckafka.doc/tasks/kcopauditavrosinglerow.html
The solution is highly scalable and has been measured to replicate changes into the 100,000's of rows per second.
We also have a proprietary ability to reconstitute data written in parallel to Kafka back into its original source order. So, despite data having been written to numerous partitions and topics , the original total order can be known. This functionality is known as the TCC (transactionally consistent consumer).
See the video and slides here...
https://kafka-summit.org/sessions/exactly-once-replication-database-kafka-cloud/
We want to setup DR server for IBM BPM Std 8.5.7 and planning to use Prod DB (Oracle) so that if for some reason Prod BPM environment becomes unavailable we can use Prod DB data in DR IBM BPM. Is this possible? What factors need to considered for this?
At present we take the snapshot of Prod DB and using this DB snapshot for COB, all servers are started but when we open Process Admin console we don't see the "Installed App" option and menus on left side to manage users. It seems DR BPM admin ID does not have required roles to get the details.
First of all, I'd like to point you to the article below;
Disaster recovery guidance for IBM Business Process Manager
Please note the difference between configuration data and runtime data as defined on this article. Since some configuration data resides at profile folders of your servers, not the database, it's not enough to just move a snapshot of production database to DR. You must also synchronise configuration data on your file system. This is probably why you can't use your DR BPM as you expected, you move runtime data to DR, but you're missing configuration data.
As for your question on what configurations are possible and what factors to consider, unfortunately answer is not so simple, as you have many alternatives.
Article above highlights which factors to consider for your DR design. There are seven different alternatives for DR topology. These evaluated according to abovementioned factors, and advantages/disadvantages are explained. You must choose one of these according to your specific requirements and resource availability.
I'm trying to deploy MoonMail on AWS. However, I receive this exception from CloudFormation:
Subscriber limit exceeded: Only 10 tables can be created, updated, or deleted simultaneously
Is there another way to deploy without opening support case and asking them to remove my limit?
This is an AWS limit for APIs: (link)
API-Specific Limits
CreateTable/UpdateTable/DeleteTable
In general, you can have up to 10
CreateTable, UpdateTable, and DeleteTable requests running
simultaneously (in any combination). In other words, the total number
of tables in the CREATING, UPDATING or DELETING state cannot exceed
10.
The only exception is when you are creating a table with one or more
secondary indexes. You can have up to 5 such requests running at a
time; however, if the table or index specifications are complex,
DynamoDB might temporarily reduce the number of concurrent requests
below 5.
You could try to open a support request to AWS to raise this limit for your account, but I don't feel this is necessary. It seems that you could create the DynamoDB tables a priori, using the AWS CLI or AWS SDK, and use MoonMail with read-only access to those tables. Using the SDK (example), you could create those tables sequentially, without reaching this simultaneously creation limit.
Another option, is to edit the s-resources-cf.json file to include only 10 tables and deploy. After that, add the missing tables and deploy again.
Whatever solution you apply, consider creating an issue ticket in MoonMail's repo, because as it stands now, it does not work in a first try (there are 12 tables in the resources file).
I am using alfresco 4.2.2 and using CMIS to fetch content from alfresco repository with query.
Select * from cmis:document where cmis:contentStreamLength >0
Alfresco repository is having more than 10000 documents but surprisigly, above query is giving different results each time between 3000 to 6000 but not 10000.
Any help please.
Regards.
I followed the following link to output CDR records to my call logging server via sFTP : http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/service/9_1_1/car/CUCM_BK_C28A807A_00_cdr-analysis-reporting-admin-guide91_chapter_01.html
Both publisher and subscriber were configured to send data to the call logging server.
The call logging server received 19674 records from the Call Manager, but only 25 records are of CDR type and the rest are of CMR type.
From my experience, I would expect at much higher number of CDR type records. Additionally, there were certainly more than 25 calls were made/received on the CUCM extensions/gateways.
Are there any settings that need to be configured on the CUCM in order to generate the rest of CDRs? Should I configure only Publisher or only Subscriber to generate CDR? Is there a way of switching off CMR type records?
Assuming that CDRs are in fact enabled, You likely have a very long "CDR File Interval". You could set this to once a day, which would only send over one CDR a day (they'd be huge though).
Look here:
Callmanager -> Cisco Unified CM Administration -> System -> Enterprise Parameters
CDR File Time Interval - Set this to 1 minute (which is the default)
If you look under system parameters there is a "CDR Enable Flag" which is disabled by default. The CDR DB is updated across all systems so you do not need to setup the offload on multiple servers. The CMR records are records on call quality average jitter MOS scores etc and would be referenced by callid