How about the debug output?
On Thu, Feb 25, 2010 at 12:03 PM, Masood Mortazavi <masoodmortaz...@gmail.com> wrote: > > All nodes always agree on the ring. > In fact, > "nodeprobe -host <name> ring" > is probably one of commands and "nodeprobe" one of the the most reliable > tools in Cassandra, as far as I can tell. > These are good suggestions. Thanks. > (I don't know whether it is worth describing this in a JIRA as a bug. I > would be willing to do it if you like me to do so.) > On Thu, Feb 25, 2010 at 6:19 AM, Jonathan Ellis <jbel...@gmail.com> wrote: >> >> Then it sounds like a bug. >> >> Do A and B agree on nodeprobe ring output? >> >> Can you turn on debug logging and paste what A and B log after "get_slice" >> ? >> >> On Thu, Feb 25, 2010 at 1:35 AM, Masood Mortazavi >> <masoodmortaz...@gmail.com> wrote: >> > Besides what I just said below, I should have also added that in the >> > scenario discussed here: >> > >> > While RackUnawareStrategy is used ... >> > >> > Node B which seems to have a copy of all data at all times, has an IP >> > address whose 3rd octet is different from IP addresses of both node A >> > and C, >> > which have the same third octet. >> > >> > A, B and C are all set as "Seed" in the "seeds" section. >> > >> > Bootstrap is set true for all of them. >> > >> > In storage-conf.xml, the only thing that differs for the three nodes is >> > their own interfaces. >> > As just noted, the Replica factor is 2. >> > That's it. >> > On Wed, Feb 24, 2010 at 11:18 PM, Masood Mortazavi >> > <masoodmortaz...@gmail.com> wrote: >> >> >> >> Yes. >> >> Identical with replication factor of 2. >> >> m. >> >> >> >> On Wed, Feb 24, 2010 at 8:33 PM, Jonathan Ellis <jbel...@gmail.com> >> >> wrote: >> >>> >> >>> Is the configuration identical on all nodes? Specifically, is >> >>> ReplicationFactor set to 2 on all nodes? >> >>> >> >>> On Wed, Feb 24, 2010 at 10:07 PM, Masood Mortazavi >> >>> <masoodmortaz...@gmail.com> wrote: >> >>> > I wonder if anyone can provide an explanation for the following >> >>> > behavior >> >>> > observed in a three-node cluster: >> >>> > >> >>> > 1. In a three-node (A, B and C) installation, I use the cli, >> >>> > connected >> >>> > to >> >>> > node A, to set 10 data items. >> >>> > >> >>> > 2. On cli connected to node A, I do get, and can see all 10 data >> >>> > items. >> >>> > >> >>> > 3. I take node C down, I do step 2, and only see some of the 10 data >> >>> > items. >> >>> > Some of the data items are unavailable as follows: >> >>> > cassandra> get Keyspace1.Standard1['test6'] >> >>> > Exception null >> >>> > UnavailableException() >> >>> > at >> >>> > >> >>> > org.apache.cassandra.service.Cassandra$get_slice_result.read(Cassandr >> >>> > a.java:3274) >> >>> > at >> >>> > >> >>> > org.apache.cassandra.service.Cassandra$Client.recv_get_slice(Cassandr >> >>> > a.java:296) >> >>> > at >> >>> > >> >>> > org.apache.cassandra.service.Cassandra$Client.get_slice(Cassandra.jav >> >>> > a:270) >> >>> > at >> >>> > org.apache.cassandra.cli.CliClient.doSlice(CliClient.java:241) >> >>> > at >> >>> > org.apache.cassandra.cli.CliClient.executeGet(CliClient.java:300) >> >>> > at >> >>> > org.apache.cassandra.cli.CliClient.executeCLIStmt(CliClient.java:57) >> >>> > at >> >>> > org.apache.cassandra.cli.CliMain.processCLIStmt(CliMain.java:131) >> >>> > at org.apache.cassandra.cli.CliMain.main(CliMain.java:172) >> >>> > >> >>> > 4. Following step 3, with no other changes other than connecting the >> >>> > same >> >>> > cli instance to the other remaining node, meaning node B (which is a >> >>> > node >> >>> > with largest memory, by the way, although I don't think it matters >> >>> > here), I >> >>> > can see all 10 test data items. >> >>> > >> >>> > The replica number is 2. >> >>> > >> >>> > >> >>> > >> >> >> > >> > > >
