Are you using Java client ? See the following in HTable : public static ThreadPoolExecutor getDefaultExecutor(Configuration conf) {
int maxThreads = conf.getInt("hbase.htable.threads.max", Integer. MAX_VALUE); FYI On Mon, Mar 13, 2017 at 9:14 AM, Henning Blohm <henning.bl...@zfabrik.de> wrote: > Hi, > > I am running an HBase client on a very resource limited machine. In > particular numproc is limited so that I frequently get "Cannot create > native thread" OOMs. I noticed that, in particular in write situations, the > hconnection pool grows into the hundreds of threads - even when at most > writing with less than ten application threads. Threads are discarded again > after some minutes. > > In conjunction with other programs running on that machine, this sometimes > leads to an "overload" situation. > > Is there a way to keep thread pool usage limited - or in some closer > relation with the actual concurrency required? > > Thanks, > > Henning > > >