TLS version error when using cqlsh with SSL

2017-11-08 Thread Fredrik Nordström X
7;t seem to apply here) * Using other certificates * Running Cassandra outside of Intellij (starting the /bin/cassandra script) Any help is really appreciated. Thanks! BR, Fredrik

high WMI CPU usage on Windows

2017-04-18 Thread Fredrik Skeel Løkke
Hi Does anyone know what Cassandra uses WMI for when running on Windows? We have some issues with high WMI CPU usage.. Yours sincerely / Med venlig hilsen Fredrik Løkke (FRSKL) Backend Architect, Application Development Plant Application (PA) Technology & Service Solutions (TSS) Ve

Corrupt SSTables

2016-03-02 Thread Fredrik Al
Hi all. Having two FSReadErrors: FSReadError in ..\..\data\system\compaction_history-b4dbb7b4dc493fb5b3bfce6e434832ca\system-compaction_history-ka-329-CompressionInfo.db FSReadError in ..\..\data\system\sstable_activity-5a1ff267ace03f128563cfae6103c65e\system-sstable_activity-ka-475-CompressionI

Re: Upgrade from 2.0.9 to 2.1.3

2015-03-07 Thread Fredrik Larsson Stigbäck
Thanks for the advice. /Fredrik > 7 mar 2015 kl. 02:25 skrev graham sanderson : > > Note for anyone who accidentally or otherwise ends up with 2.1.3 in a > situation they cannot downgrade, feel free to look at > > https://github.com/vast-engineering/cassandra/tree/va

Re: Upgrade from 2.0.9 to 2.1.3

2015-03-06 Thread Fredrik Larsson Stigbäck
So no upgradeSSTables are required? /Fredrik > 6 mar 2015 kl. 15:11 skrev Carlos Rolo : > > I would not recommend an upgrade to 2.1.x for now. Do you have any specific > reason to upgrade? > > For upgrading from 2.0.9 you can just do a direct upgrade. > > Regards,

Upgrade from 2.0.9 to 2.1.3

2015-03-06 Thread Fredrik Larsson Stigbäck
ssible to just start the on 2.1.3 directly after 2.0.9. Regards Fredrik

Cassandra 2.1.3, Windows 7 clear snapshot

2015-02-26 Thread Fredrik Larsson Stigbäck
ix similar problems e.g. https://issues.apache.org/jira/browse/CASSANDRA-6283 <https://issues.apache.org/jira/browse/CASSANDRA-6283> Are there any outstanding issues in 2.1.3 which specifically pinpoints manually clearing snapshots on Windows? Regards Fredrik

Snappy 1.1.0 Cassandra 2.1.2 compability

2014-12-15 Thread Fredrik Larsson Stigbäck
1.0 is compatible with 1.0.5. But might there be problems/data incompatibility in the future when upgrading Cassandra to a never version regarding *CompressionInfo.db files etc..? /Fredrik

Does Cassandra support running on Java 8?

2014-10-22 Thread Fredrik
Are there any official recomendations, validations/tests done with Cassandra >= 2.0 on Java 8? Regards /Fredrik

Re: mmaped files and swap

2013-03-13 Thread Fredrik Stigbäck
ap is >> kinda old school anyway at this point. It made sense when machines had 32MB >> RAM. >> >> Keeping your read 95th percentile low is mostly about removing deviations >> that cause requests to slow down, swap is one of the things that cause >> fluctuati

mmaped files and swap

2013-03-13 Thread Fredrik
at's swaped out? Regards /Fredrik

Re: Denormalization

2013-01-27 Thread Fredrik Stigbäck
I don't have a current use-case. I was just curious how applications handle and how to think when modelling, since I guess denormalization might increase the complexity of the application. Fredrik 2013/1/27 Hiller, Dean : > There is a really a mix of denormalization and normalization. I

Denormalization

2013-01-27 Thread Fredrik Stigbäck
updating those user data properties which might be spread out over many cf:s and many rows? Regards /Fredrik

Re: Remove node from cluster and have it run as a single node cluster by itself

2012-10-05 Thread Fredrik
I guess that the other nodes still gossips about the removed node. The node isn't removed from gossiper in the cluster until some amount of time have elapsed. My guess is that you haven't changed the cluster_name property in the cassandra.yaml on the removed node. Xu, Zaili skrev 2012-09-28

Question regarding hinted handoffs and restoring backup in cluster

2012-10-05 Thread Fredrik
and thus be applied to the backuped data. What is the recomended way to handle this situation? Removing the hints cf from the system tables before restart of the cluster nodes? Regards /Fredrik

Re: Removed node, jumps back into the cluster

2012-09-12 Thread Fredrik Stigbäck
Wrong assumption of me. I found the answer in GossipDigestSynVerbHandler. I forgot to change the cluster name of the new cluster. /Fredrik 2012/9/11 Fredrik : > I've tested a scenario where I wanted to reuse a removed node in a new > cluster with same IP, maybe not very common but an

Removed node, jumps back into the cluster

2012-09-11 Thread Fredrik
a node out of the cluster you must change IP on the removed node if you want to use it in another cluster? Please enlight me. Regards /Fredrik

Question regarding tombstone removal and compaction

2012-08-10 Thread Fredrik
apsed, will it be possible to run a major compaction since there are only deletes which doesn't require double amount of SStable size when merging tombstones with the large SSTables? Regards /Fredrik

JNA on Windows

2012-07-05 Thread Fredrik Stigbäck
xtensive memory requirements. I'd be happy if someone could shed some light on this issue. Regards /Fredrik

Running Cassandra with IPv6

2012-07-03 Thread Fredrik
ipv6 addresses with NIO on Windows with Java < jdk7, (https://issues.apache.org/jira/browse/CASSANDRA-4359) which isn't a Cassandra issue anyway. Regards /Fredrik

Re: Question regarding major compaction.

2012-05-01 Thread Fredrik Stigbäck
nce Developer > @aaronmorton > http://www.thelastpickle.com > > On 26/04/2012, at 9:37 PM, Fredrik wrote: > > Exactly, but why would reads be significantly slower over time when > including just one more, although sometimes large, SSTable in the read? > > Ji Cheng skrev

Re: Question regarding major compaction.

2012-04-26 Thread Fredrik
date workload itself may result in reading multiple sstables for a single row key. Please correct me if I am wrong. Cheng On Thu, Apr 26, 2012 at 3:50 PM, Fredrik <mailto:fredrik.l.stigb...@sitevision.se>> wrote: In the tuning documentation regarding Cassandra, it'

Question regarding major compaction.

2012-04-26 Thread Fredrik
uot;. From the doc: "So while read performance will be good immediately following a major compaction, it will continually degrade until the next major compaction is manually invoked. For this reason, major compaction is NOT recommended by DataStax." Regards /Fredrik

Re: Hinted handoff bug?

2011-12-01 Thread Fredrik L Stigbäck
Yes, I'll do that. /Fredrik Sylvain Lebresne skrev 2011-12-01 11:10: You're right, good catch. Do you mind opening a ticket on jira (https://issues.apache.org/jira/browse/CASSANDRA)? -- Sylvain On Thu, Dec 1, 2011 at 10:03 AM, Fredrik L Stigbäck wrote: Hi, We,re running cassa

Hinted handoff bug?

2011-12-01 Thread Fredrik L Stigbäck
try { .. } finally { *queuedDeliveries.remove(endpoint);* } } Regards /Fredrik

Clear snapshot on windows

2011-11-04 Thread Fredrik L Stigbäck
ble for deletion but would this be problem if we have seldom updated column family that wont be compacted very often? Is this considered a bug or is it something that won't be fixed due to the way Windows handles hard links? Regards /Fredrik

Commit log grows and grows

2011-11-01 Thread Fredrik Stigbäck
CommitLog.java (line 497) Not safe to delete commit log CommitLogSegment(/var/lib/cassandra/commitlog/CommitLog-1320176934665.log); dirty is ; hasNext: false Could someone please clarify the relationship between commit log creation, removal/rotation and flush, drain. Regards /Fredrik

replication factor > no nodes

2011-09-19 Thread Fredrik Stigbäck
ation factor == no nodes in cluster. Regards /Fredrik

Re: NullPointerException doing cleanup

2011-09-13 Thread Fredrik Stigbäck
Thanks. Will upgrade to 0.8.5. Regards /Fredrik 2011/9/13 Sylvain Lebresne > This should be fixed in 0.8.5 (more precisely by > https://issues.apache.org/jira/browse/CASSANDRA-3039) > > -- > Sylvain > > On Tue, Sep 13, 2011 at 12:53 PM, Fredrik Stigbäck > wrote: >

NullPointerException doing cleanup

2011-09-13 Thread Fredrik Stigbäck
at java.util.concurrent.FutureTask.run(FutureTask.java:138) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:662) /Regards Fredrik

Reading quorum

2011-06-03 Thread Fredrik Stigbäck
Does reading quorum mean only waiting for quorum respones or does it mean quorum respones with same latest timestamp? Regards /Fredrik