datastax-startup

Strange exception in /var/log/cassandra/system.log

由 爷，独闯天下 提交于 2019-12-10 15:39:34
问题 Unexpected errors in the Cassandra logs, haven't been able to trace down the underlaying cause yet. What component utilise Netty, or is this problem well known? (couldn't find any info) INFO [SharedPool-Worker-1] 2016-05-18 13:47:41,004 Message.java:532 - Unexpected exception during request; channel = [id: 0xe93fe01e, /40.68.XX.XXX:50818 :> /10.1.XX.X:9042] io.netty.channel.unix.Errors$NativeIoException: readAddress() failed: Connection timed out at io.netty.channel.unix.Errors.newIOException

LOCAL_ONE and unexpected data replication with Cassandra

由 爱⌒轻易说出口 提交于 2019-12-10 12:27:25
问题 FYI. We are running this test with Cassandra 2.1.12.1047 | DSE 4.8.4 We have a simple table in Cassandra that has a 5,000 rows of data in it. Some time back, as a precaution, we added monitoring on each Cassandra instance to ensure that it has 5,000 rows of data because our replication factor enforces this i.e. we have 2 replicas in every region and we have 6 servers in total in our dev cluster. CREATE KEYSPACE example WITH replication = {'class': 'NetworkTopologyStrategy', 'ap-southeast-1-A'

One cassandra vnode keeps moving back and forth all the time

由 久未见 提交于 2019-12-08 12:41:19
问题 We are using vnodes on a 8 nodes datacenter. One of the node keeps moving it's token range, and when doing so provokes time out errors from the connected client. Here is what we see in OpsCenter events: 4/13/2016, 10:51am Info Host 172.31.34.155 moved from '-1108852503760494577' to '8185241953623605265' ip-172-31-34-155 4/13/2016, 10:46am Info Host 172.31.34.155 moved from '8185241953623605265' to '-1108852503760494577' ip-172-31-34-155 4/13/2016, 10:43am Info Host 172.31.34.155 moved from '

Cannot record QUEUE latency of n minutes - DSE

由 心已入冬 提交于 2019-12-04 18:45:43
One of our nodes in our 3 node cluster is down and on checking the log file, it shows the below messages INFO [keyspace.core Index WorkPool work thread-2] 2016-09-14 14:05:32,891 AbstractMetrics.java:114 - Cannot record QUEUE latency of 11 minutes because higher than 10 minutes. INFO [keyspace.core Index WorkPool work thread-2] 2016-09-14 14:05:33,233 AbstractMetrics.java:114 - Cannot record QUEUE latency of 10 minutes because higher than 10 minutes. WARN [keyspace.core Index WorkPool work thread-2] 2016-09-14 14:05:33,398 Worker.java:99 - Interrupt/timeout detected. java.util.concurrent

Cassandra host in cluster with null ID

由 江枫思渺然 提交于 2019-12-01 11:34:00
Note: We are seeing this issue in our Cassandra 2.1.12.1047 (DSE 4.8.4) cluster with 6 nodes across 3 regions (2 in each region). Trying to update schemas on our cluster recently, we found the updates were failing. We suspected one node in the cluster was not accepting the change. When checking the system.peers table of one of our servers in us-east-1, that it had an anomaly, it had what seemed to be a complete entry for a host that does not exist. cassandra@cqlsh> SELECT peer, host_id FROM system.peers WHERE peer IN ('54.158.22.187', '54.196.90.253'); peer | host_id ---------------+----------

Cassandra host in cluster with null ID

由 对着背影说爱祢 提交于 2019-12-01 08:05:46
问题 Note: We are seeing this issue in our Cassandra 2.1.12.1047 (DSE 4.8.4) cluster with 6 nodes across 3 regions (2 in each region). Trying to update schemas on our cluster recently, we found the updates were failing. We suspected one node in the cluster was not accepting the change. When checking the system.peers table of one of our servers in us-east-1, that it had an anomaly, it had what seemed to be a complete entry for a host that does not exist. cassandra@cqlsh> SELECT peer, host_id FROM
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