Delete items from DynamoDB by type
I have a DynamoDB table with a TTL set on one of the attributes. However when I started ingesting data into the table I accidentally was entering the attribute as a string instead of an integer. This is ignored by the TTL and my records were never being deleted.
After a while I noticed my error and updated the code and the table ceased growing in size as records were being removed as designed. However I still have a few hundred thousand records in the table with the string TTL.
What is the best way for me to delete these records?
amazon-dynamodb
asked Nov 19 '18 at 16:23
Jacob TomlinsonJacob Tomlinson
1,61921946
add a comment |
I have a DynamoDB table with a TTL set on one of the attributes. However when I started ingesting data into the table I accidentally was entering the attribute as a string instead of an integer. This is ignored by the TTL and my records were never being deleted.
After a while I noticed my error and updated the code and the table ceased growing in size as records were being removed as designed. However I still have a few hundred thousand records in the table with the string TTL.
What is the best way for me to delete these records?
amazon-dynamodb
asked Nov 19 '18 at 16:23
Jacob TomlinsonJacob Tomlinson
1,61921946
add a comment |
I have a DynamoDB table with a TTL set on one of the attributes. However when I started ingesting data into the table I accidentally was entering the attribute as a string instead of an integer. This is ignored by the TTL and my records were never being deleted.
After a while I noticed my error and updated the code and the table ceased growing in size as records were being removed as designed. However I still have a few hundred thousand records in the table with the string TTL.
What is the best way for me to delete these records?
amazon-dynamodb
asked Nov 19 '18 at 16:23
Jacob TomlinsonJacob Tomlinson
1,61921946
I have a DynamoDB table with a TTL set on one of the attributes. However when I started ingesting data into the table I accidentally was entering the attribute as a string instead of an integer. This is ignored by the TTL and my records were never being deleted.
After a while I noticed my error and updated the code and the table ceased growing in size as records were being removed as designed. However I still have a few hundred thousand records in the table with the string TTL.
What is the best way for me to delete these records?
amazon-dynamodb
amazon-dynamodb
asked Nov 19 '18 at 16:23
Jacob TomlinsonJacob Tomlinson
1,61921946
asked Nov 19 '18 at 16:23
Jacob TomlinsonJacob Tomlinson
1,61921946
asked Nov 19 '18 at 16:23
Jacob TomlinsonJacob Tomlinson
1,61921946
asked Nov 19 '18 at 16:23
Jacob TomlinsonJacob Tomlinson
1,61921946
asked Nov 19 '18 at 16:23
Jacob TomlinsonJacob Tomlinson
1,61921946
1,61921946
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
I've written a script in python with boto3 which scans the whole table, gets the keys for items with string TTL attributes and deletes them. However deleting the ~500k items seems to be rather slow. So any other answers would be much appreciated.
import boto3
dynamodb = boto3.resource('dynamodb')
table = dynamodb.Table('my-table')
response = table.scan()
data = response['Items']
while 'LastEvaluatedKey' in response:
response = table.scan(ExclusiveStartKey=response['LastEvaluatedKey'])
data.extend(response['Items'])
string_keys = [item['key'] for item in data if type(item['ttl']) == str]
with table.batch_writer() as batch:
for key in string_keys:
batch.delete_item(
Key={
'key': key
},
)
string_keys.remove(key)
answered Nov 19 '18 at 16:43
Jacob TomlinsonJacob Tomlinson
1,61921946
1
This is your only way, unless you don't care about any of the data in the table, then just drop an recreate the table. Increase your provisioned write and/or read capacity to make it go faster,
– cementblocks
Nov 19 '18 at 21:42
add a comment |
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53378822%2fdelete-items-from-dynamodb-by-type%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I've written a script in python with boto3 which scans the whole table, gets the keys for items with string TTL attributes and deletes them. However deleting the ~500k items seems to be rather slow. So any other answers would be much appreciated.
import boto3
dynamodb = boto3.resource('dynamodb')
table = dynamodb.Table('my-table')
response = table.scan()
data = response['Items']
while 'LastEvaluatedKey' in response:
response = table.scan(ExclusiveStartKey=response['LastEvaluatedKey'])
data.extend(response['Items'])
string_keys = [item['key'] for item in data if type(item['ttl']) == str]
with table.batch_writer() as batch:
for key in string_keys:
batch.delete_item(
Key={
'key': key
},
)
string_keys.remove(key)
answered Nov 19 '18 at 16:43
Jacob TomlinsonJacob Tomlinson
1,61921946
1
This is your only way, unless you don't care about any of the data in the table, then just drop an recreate the table. Increase your provisioned write and/or read capacity to make it go faster,
– cementblocks
Nov 19 '18 at 21:42
add a comment |
I've written a script in python with boto3 which scans the whole table, gets the keys for items with string TTL attributes and deletes them. However deleting the ~500k items seems to be rather slow. So any other answers would be much appreciated.
import boto3
dynamodb = boto3.resource('dynamodb')
table = dynamodb.Table('my-table')
response = table.scan()
data = response['Items']
while 'LastEvaluatedKey' in response:
response = table.scan(ExclusiveStartKey=response['LastEvaluatedKey'])
data.extend(response['Items'])
string_keys = [item['key'] for item in data if type(item['ttl']) == str]
with table.batch_writer() as batch:
for key in string_keys:
batch.delete_item(
Key={
'key': key
},
)
string_keys.remove(key)
answered Nov 19 '18 at 16:43
Jacob TomlinsonJacob Tomlinson
1,61921946
1
This is your only way, unless you don't care about any of the data in the table, then just drop an recreate the table. Increase your provisioned write and/or read capacity to make it go faster,
– cementblocks
Nov 19 '18 at 21:42
add a comment |
I've written a script in python with boto3 which scans the whole table, gets the keys for items with string TTL attributes and deletes them. However deleting the ~500k items seems to be rather slow. So any other answers would be much appreciated.
import boto3
dynamodb = boto3.resource('dynamodb')
table = dynamodb.Table('my-table')
response = table.scan()
data = response['Items']
while 'LastEvaluatedKey' in response:
response = table.scan(ExclusiveStartKey=response['LastEvaluatedKey'])
data.extend(response['Items'])
string_keys = [item['key'] for item in data if type(item['ttl']) == str]
with table.batch_writer() as batch:
for key in string_keys:
batch.delete_item(
Key={
'key': key
},
)
string_keys.remove(key)
answered Nov 19 '18 at 16:43
Jacob TomlinsonJacob Tomlinson
1,61921946
I've written a script in python with boto3 which scans the whole table, gets the keys for items with string TTL attributes and deletes them. However deleting the ~500k items seems to be rather slow. So any other answers would be much appreciated.
import boto3
dynamodb = boto3.resource('dynamodb')
table = dynamodb.Table('my-table')
response = table.scan()
data = response['Items']
while 'LastEvaluatedKey' in response:
response = table.scan(ExclusiveStartKey=response['LastEvaluatedKey'])
data.extend(response['Items'])
string_keys = [item['key'] for item in data if type(item['ttl']) == str]
with table.batch_writer() as batch:
for key in string_keys:
batch.delete_item(
Key={
'key': key
},
)
string_keys.remove(key)
answered Nov 19 '18 at 16:43
Jacob TomlinsonJacob Tomlinson
1,61921946
edited Nov 19 '18 at 16:57
answered Nov 19 '18 at 16:43
Jacob TomlinsonJacob Tomlinson
1,61921946
answered Nov 19 '18 at 16:43
Jacob TomlinsonJacob Tomlinson
1,61921946
answered Nov 19 '18 at 16:43
Jacob TomlinsonJacob Tomlinson
1,61921946
1,61921946
1
This is your only way, unless you don't care about any of the data in the table, then just drop an recreate the table. Increase your provisioned write and/or read capacity to make it go faster,
– cementblocks
Nov 19 '18 at 21:42
add a comment |
1
This is your only way, unless you don't care about any of the data in the table, then just drop an recreate the table. Increase your provisioned write and/or read capacity to make it go faster,
– cementblocks
Nov 19 '18 at 21:42
1
1
This is your only way, unless you don't care about any of the data in the table, then just drop an recreate the table. Increase your provisioned write and/or read capacity to make it go faster,
– cementblocks
Nov 19 '18 at 21:42
This is your only way, unless you don't care about any of the data in the table, then just drop an recreate the table. Increase your provisioned write and/or read capacity to make it go faster,
– cementblocks
Nov 19 '18 at 21:42
add a comment |
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53378822%2fdelete-items-from-dynamodb-by-type%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
