Modify/Delete datastore Index on google app engine

gcloud datastore indexes create
google datastore
datastore emulator indexes
datastore index this property
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google datastore latency

My old web.xml was

<datastore-index kind="TBL" ancestor="false"> 
    <property name="Col1" direction="asc" /> 
    <property name="Col2" direction="desc" />
    <property name="Col3" direction="asc" />
    <property name="Col4" direction="asc" />
    <property name="Col5" direction="asc" />
    <property name="Col6" direction="asc" />
    <property name="Col7" direction="asc" />
    <property name="Col8" direction="asc" />                         
</datastore-index>  

My New web.xml is

<datastore-index kind="TBL" ancestor="false"> 
    <property name="Col1" direction="asc" /> 
    <property name="Col2" direction="desc" />
    <property name="Col3" direction="asc" />
    <property name="Col4" direction="asc" />
    <property name="Col5" direction="asc" />
    <property name="Col6" direction="desc" />
    <property name="Col7" direction="asc" />
    <property name="Col8" direction="asc" />                         
</datastore-index>  

Created index on server

TBL  
------------
Col2 ▲ , Col1 ▲ , Col6 ▼  
Col4 ▲ , Col1 ▲ , Col6 ▼  
Col5 ▲ , Col8 ▲ , Col1 ▲ , Col6 ▲ => I got error for this index
Col8 ▲ , Col1 ▲ , Col6 ▲   
Col1 ▲ , Col2 ▼ , Col3 ▲ , Col4 ▲ , Col5 ▲ , Col7 ▲ , Col8 ▲ 
Col1 ▲ , Col2 ▼ , Col3 ▲ , Col4 ▲ , Col5 ▲ , Col6 ▼ , Col7 ▲ , Col8 ▲ 
Col1 ▲ , Col7 ▲  
Col1 ▲ , Col6 ▲  
Col1 ▲ , Col6 ▼  

I am getting index not found error for 3rd index. I want to modify direction for col6 in all index and set it to "desc".

How can i do that? or how can i delete index?

Anybody?


You're looking for the vacuum_indexes command.

http://code.google.com/appengine/docs/python/tools/uploadinganapp.html#Deleting_Unused_Indexes

This will work for both Java and Python apps. In fact, Java's appcfg.sh does not yet support this at all, so you'll need the Python SDK if you're running a Java app.

Configuring Datastore Indexes, I manually removed all data from Google Cloud Datastore using delete button on How to change the storage backend of an existing bucket type in Riak? I have a GAE - Entities of Kind added to table but not reflected in indexes - Python. The development server can generate the Datastore index configuration automatically as you test your app. Warning: The following describes dealing with indexes in the context of the App Engine SDK, which is now deprecated. you should use the Cloud SDK tooling, including using YAML-based configuration files. Creating Datastore indexes


Modify/Delete datastore Index on google app engine, Shortcut methods for getting set up with Google Cloud Datastore. Inside a batch, calling put() with an entity, or delete() with a key, builds up the request by This parameter should be considered private, and could change in the future. of a datastore “Key” used within Google App Engine (a so-called “Reference”). When you change or remove an index from index.yaml, the original index is not automatically deleted from Datastore. This gives you the opportunity to leave an older version of the app running while new indexes are being built, or to revert to the older version immediately if a problem is discovered with a newer version.


This can now (2019-02-06) be done with:

gcloud datastore indexes cleanup <INDEX_FILE>

https://cloud.google.com/sdk/gcloud/reference/datastore/indexes/cleanup

Datastore, The simplest convenient interface to the Google Cloud Datastore This is a combined introduction to Objectify and to the App Engine datastore. You can store many at a time. delete() an entity from the datastore, using its identity. You can get many at a time. query() for entities matching indexed criteria you define. Cloud Datastore executes a query using a perfect index by the following steps: Identifies the index corresponding to the query's kind, filter properties, filter operators, and sort orders. Scans from the beginning of the index to the first entity that meets all of the query's filter conditions.


How to remove entries from Google Cloud Datastore index , If using Python, you can delete an index by first removing the entry in your index.​yaml file, and then updating your site. Then you must issue this  The Datastore emulator automatically adds items to this file when the application tries to execute a query that needs an index that does not have an appropriate entry in the configuration file. You can adjust indexes or create new ones manually by editing the file. The index.yaml is located in the <project-directory>/WEB-INF/ folder.


Datastore, Build and Run Scalable Web Apps on Google's Infrastructure Dan Sanderson strictly necessary, since the development server will never delete index configuration, not even The development server does not modify datastore-​indexes.xml. Warning:The following describes using the index configuration file, datastore-indexes.xml, associated with the App Engine SDK, which is now deprecated. You should move to Cloud SDK-based tooling such as the `gcloud` command line, which uses the index.yaml configuration file. App Engine predefines a simple index on each property of an entity.


Concepts · objectify/objectify Wiki · GitHub, Adoption · Application · By 2027 · Chainsplaining · Decentralization Also Datastore also has a powerful query engine that allows you to query for data and no data integrity checks are done when writing or deleting these Entities so you Google Cloud Datastore makes use of Indexes to aid querying,  It uses Google Cloud APIs for Cloud Vision, Cloud Storage, and Datastore. About App Engine. Google App Engine app are easy to create, maintain, and scale as your traffic and data storage needs change. With App Engine, there are no servers to maintain. You simply upload your app and it's ready to go. App Engine apps automatically scale based on