Hi Ben, Many thanks. I had tried this command earlier too but I guess my syntax was wrong. This time I just issued nodetool rebuild dc1 and took the snapshot after this. I could see the *.db files created.
Earlier I was trying nodetool rebuild -- dc1 which I guess was wrong. Thanks for the lightning response. Regards, Mradul On Fri, Jun 10, 2016 at 9:52 AM, Ben Slater <ben.sla...@instaclustr.com> wrote: > After adding a DC you need to run nodetool rebuild. See the procedure > here: > https://docs.datastax.com/en/cassandra/2.1/cassandra/operations/ops_add_dc_to_cluster_t.html > > Cheers > Ben > > On Fri, 10 Jun 2016 at 14:17 Mradul Maheshwari <mra...@apporbit.com> > wrote: > >> Hi, >> I am facing an issue when taking snapshots. >> >> The details of the setup are as follows >> >> 1. Cassandra Version 3.5 >> 2. I have a keyspace named *other_map* with '*NetworkTopologyStrategy*' >> and replication factor 1 for 'dc1' >> 3. Added another datacenter 'dc2' in the existing cluster >> 4. Modified other_map keyspace using the *ALTER* command. >> 5. After this Logged on on the node on dc2 datacenter and issued the >> *nodetool >> snapshot* command for the other_map keyspace. >> 6. As a result a directory is created in the other_keyspace/<table >> name>/snapshot/<time-stamp>. This contains only a manifest,json file which >> has no information about any files. >> >> <cat content of manifest.json> >> *cat >> data/data/other_map/country-f34a28d02b1511e689afc7a4a4b2ee40/snapshots/1465457086678/manifest.json* >> >> *{"files":[]}* >> >> </cat content of manifest.json> >> >> Am I missing any thing here? Are the above mentioned steps complete? >> >> After altering the keyspace I have tried a *nodetool repair* command >> which had also not changed anything. >> >> Regards, >> Mradul >> >> >> Information about schema follows >> >> CREATE KEYSPACE other_map WITH replication = {'class': >> 'NetworkTopologyStrategy', 'dc': '1', 'dc2': '2'} AND durable_writes = >> true; >> >> CREATE TABLE other_map.country ( >> id int PRIMARY KEY, >> name text, >> states int >> ) WITH bloom_filter_fp_chance = 0.01 >> AND caching = {'keys': 'ALL', 'rows_per_partition': 'NONE'} >> AND comment = '' >> AND compaction = {'class': >> 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy', >> 'max_threshold': '32', 'min_threshold': '4'} >> AND compression = {'chunk_length_in_kb': '64', 'class': >> 'org.apache.cassandra.io.compress.LZ4Compressor'} >> AND crc_check_chance = 1.0 >> AND dclocal_read_repair_chance = 0.1 >> AND default_time_to_live = 0 >> AND gc_grace_seconds = 864000 >> AND max_index_interval = 2048 >> AND memtable_flush_period_in_ms = 0 >> AND min_index_interval = 128 >> AND read_repair_chance = 0.0 >> AND speculative_retry = '99PERCENTILE'; >> >> -- > ———————— > Ben Slater > Chief Product Officer, Instaclustr > +61 437 929 798 >
