Hello everyone, Command: Flink savepoint -d reported an error。Do you know what's wrong with this command?
$ bin/flink savepoint -d file:///home/pengchenglin/flinkresult/savepoint/savepoint-ffbc58-9daf3085de9a/ ------------------------------------------------------------ The program finished with the following exception: java.lang.NullPointerException: Missing required argument: savepoint path. Usage: bin/flink savepoint -d <savepoint-path> at org.apache.flink.util.Preconditions.checkNotNull(Preconditions.java:75) at org.apache.flink.client.cli.CliFrontend.disposeSavepoint(CliFrontend.java:721) at org.apache.flink.client.cli.CliFrontend.lambda$savepoint$8(CliFrontend.java:657) at org.apache.flink.client.cli.CliFrontend.runClusterAction(CliFrontend.java:945) at org.apache.flink.client.cli.CliFrontend.savepoint(CliFrontend.java:654) at org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:1025) at org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:1083) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1556) at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41) at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1083) pengchengl...@163.com