title: Firebase realtime database limit for delete operations
body: <p>I'm a firebase user recently diving into rtdb, and just found a limit <a href="https://firebase.google.com/docs/database/usage/limits#writes" rel="nofollow noreferrer">docs</a> explaining write limit for a single db instance, saying the quote below:</p>
  <blockquote>
  <p>The limit on write operations per second on a single database. While not a hard limit, if you sustain more than 1,000 writes per second, your write activity may be rate-limited.</p>
  </blockquote>
  <p>In firestore's security rules for example, delete operation is in the category of write operation, and i guess such concept would be applicable to other firebase services. So i want to exactly know if <code>delete operation</code> is subject to write limit for rtdb instance.</p>
  <p>FYI, i'm planning to use the latest node js admin sdk with cloud functions to operate a huge number of deletes, using <a href="https://firebase.google.com/docs/reference/node/firebase.database.Reference#remove" rel="nofollow noreferrer">this link</a>'s method for huge number of different paths.</p>
  <p>So, if the delete op is subject to rtdb write operation, it seems to be a critical mistake to deploy this function even if only few number of users are likely to trigger this function concurrently. And even few concurrent invocations would soon max out the per-second write limit, considering that firebase admin sdk is good at iterating those ops really quickly.</p>
  <p>Since i have to specify the id(key) of path for each removal(-so that no nested data would be deleted unintentionally), simply deleting parent path is not applicable to this situation, and even really dangerous..</p>
  <p>If delete op is not subject to write limit, then i also want to know if there is truly no single limit for delete operations for rtdb!! Hope this question reach to firebase gurus in the community! Comments are welcomed and appreciate! Thank you in advance [:</p>