<p class="shortdesc"></p> <section class="section" id="Feature_FAQs__section_f5x_dm1_xmb"><h2 class="doc-tairway">How do I select the region of Log Service?</h2> <p class="p">The region of Log Service must be the same as that of the cloud hosts whose logs are to be collected.</p> </section> <section class="section" id="Feature_FAQs__section_xnq_2m1_xmb"><h2 class="doc-tairway">Will my data be deleted if its storage duration is longer than the retention period set in the index?</h2> <ul class="ul" id="Feature_FAQs__ul_k1n_x2m_wnb"> <li class="li">If you do not enable the archiving feature when you create a collection policy, log data will be deleted when its retention period expires. </li> <li class="li">If you enable the archiving feature when you create a collection policy, logs can be saved on Ping An Cloud for one year. The system automatically deletes the log data after one year is reached. To save logs in the storage devices of Ping An Cloud for a longer time, submit a <a class="xref" href="/console/workorder/create" target="_blank">Ticket</a>.</li> </ul> </section> <section class="section" id="Feature_FAQs__section_dsn_cfm_wnb"><h2 class="doc-tairway">Which operating systems are supported for cloud hosts in a host group? </h2> <p class="p">The cloud hosts in a host group support LINUX, WINDOWS, and UNIX operating systems.</p> <div class="note note note_note"><span class="note__title">Note:</span> Currently, you cannot collect Nginx logs from the cloud hosts running the Windows operating system.</div> </section> <section class="section" id="Feature_FAQs__section_wyk_jm1_xmb"><h2 class="doc-tairway">Why do I need to configure the log encoding format for a general collection policy? </h2> <p class="p">If the collected logs contain Chinese characters, make sure the decoding format is the same as the encoding format to enable Log Service to correctly read Chinese characters in the logs.</p> <p class="p">After you specify an encoding format in a collection policy, Log Service will decode the collected logs automatically by using the encoding format. If the decoding format do not match the encoding format, Chinese characters in the logs will be decoded into garbled codes.</p> </section> <section class="section" id="Feature_FAQs__section_djt_mm1_xmb"><h2 class="doc-tairway">How is the data on a dashboard generated?</h2> <p class="p">After you configure an Nginx log collection policy, Log Service automatically analyzes Nginx access data and extracts fields based on the configured format, and then fills the multi-dimensional data into visualized reports on a dashboard.</p> </section> <section class="section" id="Feature_FAQs__section_j2n_nm1_xmb"><h2 class="doc-tairway">Will my log data get lost if I delete a project or a host group?</h2> <ul class="ul" id="Feature_FAQs__ul_qnm_gfm_wnb"> <li class="li">If you do not enable the archiving feature when you create a collection policy, log data will get lost after you delete a project or a host group. Perform the delete task with caution.</li> <li class="li"> If you enable the archiving feature when you create a collection policy, logs can be saved on Ping An Cloud for one year.</li> </ul> </section>