"I see a lot of hinted handoff compactions too." I might have not been clear enough, I see a lot of "compaction of system.hints" that I interpret as being due to a lot of data that couldn't reach their destination.
2013/6/4 Alain RODRIGUEZ <arodr...@gmail.com> > Hi, > > I have an issue since switch to multiple DC. I use AWS EC2 instances, > C*1.2.2, 12 nodes eu-west + 6 nodes us-east (new DC). > > Datacenter: eu-west > =================== > Status=Up/Down > |/ State=Normal/Leaving/Joining/Moving > -- Address Load Owns Host ID > UN public ip 133.43 GB 8.3% ae33d60c-1c24-4c10-b58c-59d06faac5ca > UN public ip 171.3 GB 8.3% bb94c428-c98d-454d-af80-6612548a8125 > UN public ip 140.26 GB 8.3% 136bbced-25ed-4a37-abd9-7ab0d146d1c7 > UN public ip 132.14 GB 8.3% 086ebf3e-c58f-4b76-b4d5-6600f7b79cf7 > UN public ip 178.26 GB 8.3% 9255d30f-848f-4251-800b-2c61b4e0cfbf > UN public ip 153.79 GB 8.3% 7b4fd83a-ca9c-4115-b146-222ab040abd6 > UN public ip 146.82 GB 8.3% bf233d59-d7a4-482f-adaf-d48531d16305 > UN public ip 151.1 GB 8.3% fa3b617d-5d31-4db2-87bf-494ee8a9f95f > UN public ip 131.78 GB 8.3% dac399dc-ac7c-4ee3-9503-f55e8a9f1675 > UN public ip 130.18 GB 8.3% 56b8654a-f8b3-43d4-8b15-2e74d5dfe81b > UN public ip 161.96 GB 8.3% 97624d02-ba48-42e7-88f7-2d3b0175d6ef > UN public ip 130.26 GB 8.3% 868c45b3-4afc-43db-b2d0-5c0f89d018fb > Datacenter: us-east > =================== > Status=Up/Down > |/ State=Normal/Leaving/Joining/Moving > -- Address Load Owns Host ID > UN public ip 246.74 GB 0.0% 212888f6-ecf8-4953-8f83-c5653fb176cb > UN public ip 320.15 GB 0.0% bcd696da-433b-4e6b-8030-11629eaf5b84 > UN public ip 353.22 GB 0.0% 3f5cb04a-3ac3-46f3-b101-31a9ae7682bc > UN public ip 348.91 GB 0.0% 836b3b76-418a-4a22-bab4-c1a0bd49de65 > UN public ip 269.37 GB 0.0% 9408c7ff-ec47-4824-af81-92aa311a1984 > UN public ip 244.94 GB 0.0% 668eb3ca-8ee4-40ae-98e7-987c471bd675 > > On each node of the new DC, owns 0% (from status view). A nodetool ring > myks gives me: > > Datacenter: eu-west > ========== > Replicas: 3 > > Address Rack Status State Load Owns > Token > public ip 1b Up Normal 131.78 GB 25.00% > 113427455640312821154458202477256070485 > public ip 1b Up Normal 161.96 GB 25.00% > 141784319550391026443072753096570088106 > public ip 1b Up Normal 153.43 GB 25.00% > 70892159775195513221536376548285044053 > public ip 1b Up Normal 151.1 GB 25.00% > 99249023685273718510150927167599061674 > public ip 1b Up Normal 130.26 GB 25.00% > 155962751505430129087380028406227096917 > public ip 1b Up Normal 146.82 GB 25.00% > 85070591730234615865843651857942052864 > public ip 1b Up Normal 171.35 GB 25.00% > 14178431955039102644307275309657008810 > public ip 1b Up Normal 132.14 GB 25.00% > 42535295865117307932921825928971026432 > public ip 1b Up Normal 140.26 GB 25.00% > 28356863910078205288614550619314017621 > public ip 1b Up Normal 133.43 GB 25.00% > 0 > public ip 1b Up Normal 130.18 GB 25.00% > 127605887595351923798765477786913079296 > public ip 1b Up Normal 178.27 GB 25.00% > 56713727820156410577229101238628035242 > > Datacenter: us-east > ========== > Replicas: 3 > > Address Rack Status State Load Owns > Token > > 100 > public ip 1b Up Normal 320.15 GB 50.00% > 28356863910078205288614550619314017721 > public ip 1b Up Normal 353.14 GB 50.00% > 56713727820156410577229101238628035342 > public ip 1b Up Normal 348.35 GB 50.00% > 85070591730234615865843651857942052964 > public ip 1b Up Normal 269.35 GB 50.00% > 113427455640312821154458202477256070585 > public ip 1b Up Normal 244.94 GB 50.00% > 141784319550391026443072753096570088206 > public ip 1b Up Normal 246.74 GB 50.00% > 100 > > This seems to be ok. > > When I run "describe cluster;" from cassandra-cli from an eu-west node : > > [default@unknown] describe cluster; > Cluster Information: > Snitch: org.apache.cassandra.locator.Ec2MultiRegionSnitch > Partitioner: org.apache.cassandra.dht.RandomPartitioner > Schema versions: > e968865b-3b96-3c87-af0a-6294067a832f: [My 18 publics ip] > > So far so good. > From an us-east node now : > > [default@unknown] describe cluster; > Cluster Information: > Snitch: org.apache.cassandra.locator.Ec2MultiRegionSnitch > Partitioner: org.apache.cassandra.dht.RandomPartitioner > Schema versions: > UNREACHABLE: [public ip of the node itself] > > e968865b-3b96-3c87-af0a-6294067a832f: [17 others publics ip] > > > Why isn't this node not able to see itself ? What port / service is in > used while describing cluster ? I have tried opening all port with no > success. Also tried the following script to help the node finding itself, > but it doesn't seems to work... > > --------------------- script > --------------------------------------------------------------------------------------- > #!/bin/bash > PUBLIC_IP=$(wget -qO- http://instance-data/latest/meta-data/public-ipv4) > /sbin/ifconfig eth0:1 $PUBLIC_IP netmask 255.255.255.255 broadcast > $PUBLIC_IP > > --------------------- end of script > -------------------------------------------------------------------------------------- > > eth0:1 Link encap:Ethernet HWaddr 12:31:39:22:c1:41 > inet addr:xx.xx.xx.xx Bcast:xx.xx.xx.xx Mask:255.255.255.255 > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > Interrupt:47 > > > I see a lot of hinted handoff compactions too. > > Any clue on what's wrong ? >
