Is there an additional cost to write metadata to objects in the bucket?

I was looking into writing an MD5sum to the object after it has been uploaded to AWS S3 and doing a data integrity check as described here: https://aws.amazon.com/premiumsupport/knowledge-center/data-integrity-s3/ For example, you uploaded 100,000 objects to an AWS S3 bucket and you want to run the MD5 to do an data integrity check, is there an…

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How to animate a few imageView(>3) continuously from right to left in Android Studio?

I have found the solution for animating 2 imageView from right to left. Here is the website: Click on this solution that I found for full details I want to animate three or four imageView continuously by using this method. Can anyone help me? Main Activity code: final ImageView backgroundOne = (ImageView) findViewById(R.id.background_one); final ImageView…

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Mongod Failed global initialization. Permission denied on log file

CONTROL [main] Failed global initialization: FileNotOpen: Failed probe for “/mnt/b/bd/mongod.log”: Permission denied Jan 12 06:43:27 ip-172-31-41-23 systemd[1]: mongod.service: Main process exited, code=exited, status=1/FAILURE Jan 12 06:43:27 ip-172-31-41-23 systemd[1]: mongod.service: Failed with result ‘exit-code’. Permissions are set to mongodb:mongodb i have tried repairing the db deleting the log file, mongodb.lock file and problem persists tried setting…

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