szehon-ho commented on issue #2301:
URL: https://github.com/apache/iceberg/issues/2301#issuecomment-926820596
I found it useful to have a small script to unlock manually as well (in case
the HMS thread is not configured). In scala for instance assuming you get a
hmsclient:
```
def unlock(db: String, table: String): Unit = {
val lockIds = getLockIds(db, table)
lockIds.foreach{
hmsClient.unlock(_)
}
}
private def getLockIds(db: String, table: String): Set[Long] = {
val showLockRequest = new ShowLocksRequest()
showLockRequest.setDbname(db)
showLockRequest.setTablename(table)
showLockRequest.setIsExtended(true)
val response = hmsClient.showLocks(showLockRequest)
val locks = response.getLocks.asScala
locks.map(_.getLockid).toSet
}
```
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