Question

通过BufferedMutator将数据插入HBase时，出现错误提示

java.lang.OutOfMemoryError: unable to create new native thread 
        at java.lang.Thread.start0(Native Method) 
        at java.lang.Thread.start(Thread.java:717) 
        at java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:957) 
        at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1367) 
        at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112) 
        at org.apache.hadoop.hbase.client.AsyncRequestFutureImpl.sendMultiAction(AsyncRequestFutureImpl.java:547) 
        at org.apache.hadoop.hbase.client.AsyncProcess.submitMultiActions(AsyncProcess.java:337) 
        at org.apache.hadoop.hbase.client.AsyncProcess.submit(AsyncProcess.java:320) 
        at org.apache.hadoop.hbase.client.AsyncProcess.submit(AsyncProcess.java:228) 
        at org.apache.hadoop.hbase.client.BufferedMutatorImpl.doFlush(BufferedMutatorImpl.java:303) 
        at org.apache.hadoop.hbase.client.BufferedMutatorImpl.close(BufferedMutatorImpl.java:241)

在这里，我要通过单个连接为每个请求插入200-300字节长度的数据。并生成同步查询。也可以在下面的线程转储中找到。定时等待线程属于htable-pool。 Thread Dump

请问您如何解决此异常的答案。示例代码-

    try(BufferedMutator mutator = Connection.creatConnection().getBufferedMutator(TableName.valueOf(tableName)) {
            Put put = new Put(Bytes.toBytes(rowKey));
            map.forEach(element->put.addColumn(CF,element.getKey(),element.getValue());
            mutator.mutate(put);
        } catch (Exception e) {
            e.printStackTrace();
        }

HBase的Bufferedmutator中的OutOfMemoryError

0 个答案: