Re: Fast Writes to Cassandra Failing Through Python Script

2018-03-13 Thread Bruce Tietjen
The following won't address any server performance issues, but will allow your application to continue to run even if there are client or server timeouts: Your python code should wrap all Cassandra statement execution calls in a try/except block to catch any errors and handle them appropriate

Cassandra 3.11.1 java.lang.UnsatisfiedLinkError Exception when using Leveled Compaction

2017-10-27 Thread Bruce Tietjen
We are using 3.11.1 (which we recently upgraded from 3.11.0) and just started experimenting with LeveledCompactionStrategy. After loading data for 24 hours, we started getting the following error: ERROR [CompactionExecutor:628] 2017-10-27 11:58:21,748 CassandraDaemon.java:228 - Exception in thread

Re: Cassandra 3.11.0 compaction attempting impossible to complete compactions

2017-10-13 Thread Bruce Tietjen
use the behavior you're seeing. > > > > On Fri, Oct 13, 2017 at 4:24 PM, Bruce Tietjen < > bruce.tiet...@imatsolutions.com> wrote: > >> >> We are new to Cassandra and have built a test cluster and loaded some >> data into the cluster. >> >> We

Re: Cassandra 3.11.0 compaction attempting impossible to complete compactions

2017-10-13 Thread Bruce Tietjen
: > What's the compaction strategy are you using? level compaction or size > tiered compaction? > > On Fri, Oct 13, 2017 at 4:31 PM, Bruce Tietjen < > bruce.tiet...@imatsolutions.com> wrote: > >> I hadn't noticed that is is now attempting

Re: Cassandra 3.11.0 compaction attempting impossible to complete compactions

2017-10-13 Thread Bruce Tietjen
uld not happen. There’s a check that drops > sstables out of a compaction task if there isn’t enough available disk > space, see https://issues.apache.org/jira/browse/CASSANDRA-12979 for some > details. > > > On Oct 13, 2017, at 4:24 PM, Bruce Tietjen com> wrote: > > > W

Cassandra 3.11.0 compaction attempting impossible to complete compactions

2017-10-13 Thread Bruce Tietjen
We are new to Cassandra and have built a test cluster and loaded some data into the cluster. We are seeing compaction behavior that seems to violate what we read about it's behavior. Our cluster is configured with JBOD with 3 3.6T disks. Those disks currently respectively have the following used/