Re: Cassandra and GPU's...

unsubscribe On Tue, Dec 1, 2015 at 5:55 PM, james anderson wrote: > good morning; > > On 2015-12-01, at 21:53, Steve Robenalt wrote: > > Hi James, > > Yup, the analytics side of database usage is ripe with possibilities, as > the site at your link shows. > > > that case is not the “analytics”,

Re: Help diagnosing performance issue

unsubscribe. > On Nov 19, 2015, at 3:58 PM, Antoine Bonavita wrote: > > Sebastian, > > I took into account your suggestion and set max_sstable_age_days to 1. > > I left the TTL at 432000 and the gc_grace_seconds at 172800. So, I expect > SSTable older than 7 days to get deleted. Am I right ?

Re: unsubscribe

unsubscribe > On Oct 14, 2015, at 7:28 AM, Alain RODRIGUEZ wrote: > > From http://cassandra.apache.org/#lists > --> just email user-unsubscr...@cassandra.apache.org > > > > Alain > > 2015-10-14 14:29 GMT+02:0

Node in DL status cannot be removed

Hi All, After I decommission the node, i see the node status is DL and always there, even after i removed the node, anybody knows how to remove it ? Many thanks. ubuntu@ip-172-31-30-145:~$ nodetool status Datacenter: DC1 === Status=Up/Down |/ State=Normal/Leaving/Joining/Moving

Regarding " node tool move "

Hi All, I want to manually move some token from one hostA to host B, i do not fully understand this command, * move- Move node on the token ring to a new token* Say host A has token: (i got it with nodetool info -T) Token : -9096422322933500933 Token :

Re: Cassandra adding node issue (no UJ status)

led" > > When I encounter this issue, I make an attempt to bootstrap the new node > again. If that doesn't help, I run a repair on the new node. > > > On Tue, Sep 15, 2015 at 3:14 AM, Rock Zhang wrote: > >> Hi All, >> >> >> Now I got a probl

Cassandra adding node issue (no UJ status)

Hi All, Now I got a problem everything when add new node, the data is not balance again, just add it as new node. Originally I saw the UJ status, anybody experienced this kind of issue ? I don't know what changed . ubuntu@ip-172-31-15-242:/etc/cassandra$ nodetool status rawdata Datacenter: D

Re: OOM when Adding host

I logged the open files every 10 mins, last record is : lsof -p $cassadnraPID | wc -l 74728 lsof |wc-l 5887913 # this is a very large number, don't know why. After OOM the open file numbers back to few hundreds (lsof | wc -l ). On Aug 10, 2015, at 9:59 AM, rock zhang wrote:

Re: OOM when Adding host

My Cassandra version is 2.1.4. Thanks Rock On Aug 10, 2015, at 9:52 AM, rock zhang wrote: > Hi All, > > Currently i have three hosts. The data is not balanced, one is 79G, another > two have 300GB. When I adding a new host, firstly I got "too many open files" > e

OOM when Adding host

Hi All, Currently i have three hosts. The data is not balanced, one is 79G, another two have 300GB. When I adding a new host, firstly I got "too many open files" error, then i changed file open limit from 100,000 to 1, 000, 000. Then I got OOM error. Should I change the limits to 20, inst

Re: only grant select , but still can modify data

versions are you using? Did you check that the DevCenter connection properties are using the "readonly" account and that any existing connection was closed and re-opened? Did you get the expected result with cqlsh? dan On Mon, Aug 3, 2015 at 7:12 PM, rock zhang wrote: > Hi All,

only grant select , but still can modify data

Hi All, I want to create a readonly account, so i run the following command following: http://docs.datastax.com/en/cassandra/1.2/cassandra/security/security_config_native_authenticate_t.html CREATE USER readonly WITH PASSWORD '' ; GRANT SELECT ON ALL KEYSPACES TO readonly; Then I login De

if seed is diff on diff nodes, any problem ?

Hi All, I have 6 node, most of them are using node1 as seed, but I just find out 2 nodes are using node3 as seed, but everything looks fine. Does that mean seed node does not have to be same on all nodes ? Thanks Rock

Re: After clean up, the whole system is down

I tried to restart , but always get out of memory error. Then I changed to use new seed node, then it works. I guess the possible reason is I run cleanup twice ? I need to run repair to fix some inconsistency issue, right ? Thanks Rock On Jul 25, 2015, at 8:39 AM, rock zhang wrote: >

After clean up, the whole system is down

) ~[na:1.7.0_80] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_80] at java.lang.Thread.run(Thread.java:745) [na:1.7.0_80] On Jul 24, 2015, at 5:10 PM, Robert Coli wrote: > On Fri, Jul 24, 2015 at 5:03 PM, rock zhang wrote: &

Re: Nodetool cleanup takes long time and no progress

, at 4:58 PM, rock zhang wrote: > Thank you Jeff. I just added one more node, so i want to delete moved tokens. > > ubuntu@ip-172-31-30-145:~$ nodetool compactionstats > pending tasks: 1413 >compaction type keyspace table completed totaluni

Re: Nodetool cleanup takes long time and no progress

ou trying to clean up space > after issuing a lot of deletes? > > > > > > On 7/24/15, 3:55 PM, "rock zhang" wrote: > >> Hi All, >> >> After I added node, I run node tool cleanup on the old notes , but it takes >> forever, no error mes

Nodetool cleanup takes long time and no progress

Hi All, After I added node, I run node tool cleanup on the old notes , but it takes forever, no error message, and I don't see space are freed. What should I do ? Repair first ? Thanks Rock