usage.txt

Calculate hash of the fdb instance or compare two fdb instances
Usage: java -jar fdb-hash {options}... {command}

Options are:
-C ClusterFile     Path to the fdb cluster file. Default: uses FDB_CLUSER_FILE environment variable
-A ClusterFile     Path to the fdb cluster file of auxiliary database (for compare)
-from Key          Beginning key. Default: \\x00
-to Key            Ending key. Default: \\xff
-threads N         Number of parallel threads. Default: 10
-max_queries N     Maximum outstanding queries. Default: 30
-v                 Output progress. Default: no
-locked            Query against a locked database (eg dr site)
-system            Query against a system key space (\\xff - \\xff\\xff)
-subres            Print result for every subinterval queried. Default: no
-retries N         Limit number of retries of each query on recoverable errors to N. Default: 3
-help              Print this information

Commands are:
hash               Count keys and calculate their checksum (default)
compare            Compare two databases. Requires passing a path to the cluster file of auxiliary database with -A option

Examples:
java -jar fdb-hash-0.2.jar
    Count the keys and calculate their checksum of the fdb cluster provided by FDB_CLUSTER_FILE environment variable
java -jar fdb-hash-0.2.jar -C fdb-primary.cluster -locked compare -A fdb-dr.cluster -subres
    Compare the primary and DR fdb cluster. Print subresult for each key range
java -jar fdb-hash-0.2.jar -C fdb-primary.cluster -locked compare -A fdb-dr.cluster -subres -from Key0 -to Key9
    Compare the subrange Key0 - Key9 of primary and DR fdb cluster. Print subresult for each key subrange