大量載入

-alg,--ssl-alg <ALGORITHM>                                   Client SSL: algorithm

-ap,--auth-provider <auth provider>                          Custom
                                                             AuthProvider class name for
                                                             cassandra authentication
-ciphers,--ssl-ciphers <CIPHER-SUITES>                       Client SSL:
                                                             comma-separated list of
                                                             encryption suites to use
-cph,--connections-per-host <connectionsPerHost>             Number of
                                                             concurrent connections-per-host.
-d,--nodes <initial hosts>                                   Required.
                                                             Try to connect to these hosts (comma separated) initially for ring information

--entire-sstable-throttle-mib <throttle-mib>                 Entire SSTable throttle
                                                             speed in MiB/s (default 0 for unlimited).

--entire-sstable-inter-dc-throttle-mib                       <inter-dc-throttle-mib>
                                                             Entire SSTable inter-datacenter throttle
                                                             speed in MiB/s (default 0 for unlimited).

-f,--conf-path <path to config file>                         cassandra.yaml file path for streaming throughput and client/server SSL.

-h,--help                                                    Display this help message

-i,--ignore <NODES>                                          Don't stream to this (comma separated) list of nodes

-idct,--inter-dc-throttle <inter-dc-throttle>                (deprecated) Inter-datacenter throttle speed in Mbits (default 0 for unlimited).
                                                             Use --inter-dc-throttle-mib instead.

--inter-dc-throttle-mib <inter-dc-throttle-mib>              Inter-datacenter throttle speed in MiB/s (default 0 for unlimited)

-k,--target-keyspace <target keyspace name>                  Target
                                                             keyspace name
-ks,--keystore <KEYSTORE>                                    Client SSL:
                                                             full path to keystore
-kspw,--keystore-password <KEYSTORE-PASSWORD>                Client SSL:
                                                             password of the keystore
--no-progress                                                Don't
                                                             display progress
-p,--port <native transport port>                            Port used
                                                             for native connection (default 9042)
-prtcl,--ssl-protocol <PROTOCOL>                             Client SSL:
                                                             connections protocol to use (default: TLS)
-pw,--password <password>                                    Password for
                                                             cassandra authentication
-sp,--storage-port <storage port>                            Port used
                                                             for internode communication (default 7000)
-spd,--server-port-discovery <allow server port discovery>   Use ports
                                                             published by server to decide how to connect. With SSL requires StartTLS
                                                             to be used.
-ssp,--ssl-storage-port <ssl storage port>                   Port used
                                                             for TLS internode communication (default 7001)
-st,--store-type <STORE-TYPE>                                Client SSL:
                                                             type of store
-t,--throttle <throttle>                                     (deprecated) Throttle speed in Mbits (default 0 for unlimited).
                                                             Use --throttle-mib instead.
--throttle-mib <throttle-mib>                                Throttle
                                                             speed in MiB/s (default 0 for unlimited)
-ts,--truststore <TRUSTSTORE>                                Client SSL:
                                                             full path to truststore
-tspw,--truststore-password <TRUSTSTORE-PASSWORD>            Client SSL:
                                                             Password of the truststore
-u,--username <username>                                     Username for
                                                             cassandra authentication
-v,--verbose                                                 verbose
                                                             output

$ cd ./cassandra/data/data/catalogkeyspace/magazine-446eae30c22a11e9b1350d927649052c && ls -l

total 0
drwxrwxr-x. 2 ec2-user ec2-user 226 Aug 19 02:38 backups
drwxrwxr-x. 4 ec2-user ec2-user  40 Aug 19 02:45 snapshots

$ sudo mkdir -p /catalogkeyspace/magazine
$ sudo chmod -R 777 /catalogkeyspace/magazine

DROP table t;

CREATE TABLE IF NOT EXISTS cqlkeyspace.t (
   id int PRIMARY KEY,
   k int,
   v text)
   WITH ID = d132e240-c217-11e9-bbee-19821dcea330
   AND bloom_filter_fp_chance = 0.01
   AND crc_check_chance = 1.0
   AND default_time_to_live = 0
   AND gc_grace_seconds = 864000
   AND min_index_interval = 128
   AND max_index_interval = 2048
   AND memtable_flush_period_in_ms = 0
   AND speculative_retry = '99p'
   AND additional_write_policy = '99p'
   AND comment = ''
   AND caching = { 'keys': 'ALL', 'rows_per_partition': 'NONE' }
   AND compaction = { 'max_threshold': '32', 'min_threshold': '4',
   'class': 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy' }
   AND compression = { 'chunk_length_in_kb': '16', 'class':
   'org.apache.cassandra.io.compress.LZ4Compressor' }
   AND cdc = false
   AND extensions = {  }
;

SELECT * FROM t;

id | k | v
----+---+---

(0 rows)

$ nodetool import -- cqlkeyspace t \
./cassandra/data/data/cqlkeyspace/t-d132e240c21711e9bbee19821dcea330/backups

SELECT * FROM t;

id | k | v
----+---+------
 1 | 1 | val1
 0 | 0 | val0

(2 rows)

USE CATALOGKEYSPACE;
DROP TABLE journal;

$ ls -l

total 44
-rw-rw-r--. 1 ec2-user ec2-user   31 Aug 19 02:44 manifest.json
-rw-rw-r--. 3 ec2-user ec2-user   47 Aug 19 02:38 na-1-big-CompressionInfo.db
-rw-rw-r--. 3 ec2-user ec2-user   97 Aug 19 02:38 na-1-big-Data.db
-rw-rw-r--. 3 ec2-user ec2-user   10 Aug 19 02:38 na-1-big-Digest.crc32
-rw-rw-r--. 3 ec2-user ec2-user   16 Aug 19 02:38 na-1-big-Filter.db
-rw-rw-r--. 3 ec2-user ec2-user   16 Aug 19 02:38 na-1-big-Index.db
-rw-rw-r--. 3 ec2-user ec2-user 4687 Aug 19 02:38 na-1-big-Statistics.db
-rw-rw-r--. 3 ec2-user ec2-user   56 Aug 19 02:38 na-1-big-Summary.db
-rw-rw-r--. 3 ec2-user ec2-user   92 Aug 19 02:38 na-1-big-TOC.txt
-rw-rw-r--. 1 ec2-user ec2-user  814 Aug 19 02:44 schema.cql

CREATE TABLE IF NOT EXISTS catalogkeyspace.journal (
   id int PRIMARY KEY,
   name text,
   publisher text)
   WITH ID = 296a2d30-c22a-11e9-b135-0d927649052c
   AND bloom_filter_fp_chance = 0.01
   AND crc_check_chance = 1.0
   AND default_time_to_live = 0
   AND gc_grace_seconds = 864000
   AND min_index_interval = 128
   AND max_index_interval = 2048
   AND memtable_flush_period_in_ms = 0
   AND speculative_retry = '99p'
   AND additional_write_policy = '99p'
   AND comment = ''
   AND caching = { 'keys': 'ALL', 'rows_per_partition': 'NONE' }
   AND compaction = { 'min_threshold': '4', 'max_threshold':
   '32', 'class': 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy' }
   AND compression = { 'chunk_length_in_kb': '16', 'class':
   'org.apache.cassandra.io.compress.LZ4Compressor' }
   AND cdc = false
   AND extensions = {  }
;

$ nodetool import -- catalogkeyspace journal \
./cassandra/data/data/catalogkeyspace/journal-
296a2d30c22a11e9b1350d927649052c/snapshots/catalog-ks/

SELECT * FROM journal;

id | name                      | publisher
----+---------------------------+------------------
 1 |        Couchbase Magazine |        Couchbase
 0 | Apache Cassandra Magazine | Apache Cassandra

(2 rows)

$ sudo mkdir /sstables
$ sudo chmod  777 -R /sstables

public static final String OUTPUT_DIR = "./sstables";

String type = "CREATE TYPE CQLKeyspace.intType (a int, b int)";
// Define a String variable for the SSTable schema.
String schema = "CREATE TABLE CQLKeyspace.t ("
                 + "  id int PRIMARY KEY,"
                 + "  k int,"
                 + "  v1 text,"
                 + "  v2 intType,"
                 + ")";

String insertStmt = "INSERT INTO CQLKeyspace.t (id, k, v1, v2) VALUES (?, ?, ?, ?)";

File outputDir = new File(OUTPUT_DIR + File.separator + "CQLKeyspace" + File.separator + "t");

CQLSSTableWriter writer = CQLSSTableWriter.builder()
                                             .inDirectory(outputDir)
                                             .withType(type)
                                             .forTable(schema)
                                             .withBufferSizeInMB(256)
                                             .using(insertStmt).build();

UserType userType = writer.getUDType("intType");

writer.addRow(0, 0, "val0", userType.newValue().setInt("a", 0).setInt("b", 0));
   writer.addRow(1, 1, "val1", userType.newValue().setInt("a", 1).setInt("b", 1));
   writer.addRow(2, 2, "val2", userType.newValue().setInt("a", 2).setInt("b", 2));

writer.close();