【背景】业务需求是通过doris异步物化视图定时查询paimon的数据进行结果更新加速报表查询速度。【版本】doris 3.1.4paimon 1.4.1【问题】查询paimon catalog的表没反应看be日志有如下报错RuntimeLogger W20260911 01:42:51.589244 2188067 vscan_node.h:37] close scanner failed, st [RUNTIME_ERROR]Failed to get JNIEnv: it is nullptr. 0# doris::JniUtil::GetJNIEnv(JNIEnv_**) at /home/zcp/repo_center/doris_release/doris/be/src/common/status.h:0 1# doris::vectorized::JniConnector::close() at /home/zcp/repo_center/doris_release/doris/be/src/common/status.h:506 2# doris::vectorized::JniReader::close() at /home/zcp/repo_center/doris_release/doris/be/src/vec/exec/format/jni_reader.h:0 3# doris::vectorized::VFileScanner::close(doris::RuntimeState*) at /home/zcp/repo_center/doris_release/doris/be/src/common/status.h:506 4# doris::vectorized::ScannerDelegate::~ScannerDelegate() at /home/zcp/repo_center/doris_release/doris/be/src/common/status.h:506 5# doris::vectorized::ScannerScheduler::_scanner_scan(std::shared_ptrdoris::vectorized::ScannerContext, std::shared_ptrdoris::vectorized::ScanTask) at /var/local/ldb-toolchain/bin/../lib/gcc/x86_64-linux-gnu/11/../../../../include/c/11/ext/atomicity.h:98【排查】应该是jni oom了。jinfo -flags $(pgrep -f doris_be) | grep MaxHeapSize查询居然只有1g但是我们be配置了JAVA_OPTS里是2g的。最后发现be\bin\start_be.sh里面写死了默认jdk17的就是1gif [[ ${java_version} -eq 17 ]]; then if [[ -z ${JAVA_OPTS_FOR_JDK_17} ]]; then JAVA_OPTS_FOR_JDK_17-Xmx1024m ${LOG_PATH} -Xlog:gc:${DORIS_HOME}/log/be.gc.log.${CUR_DATE} ${COMMON_OPTS} --add-opensjava.base/java.netALL-UNNAMED fi final_java_opt${JAVA_OPTS_FOR_JDK_17} else echo ERROR: The jdk_version is ${java_version}, it must be 17. ${LOG_DIR}/be.out exit 1 fi【解决办法】修改be的配置文件配置对应的jdk版本参数JAVA_OPTS_FOR_JDK_17-Xmx4g -Xms4g -XX:HeapDumpOnOutOfMemoryError ......